N.serve Environmental Services GmbH

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1 N.serve Environmental Services GmbH JI Monitoring Report No. 03 YARA Uusikaupunki T2 N2O abatement project in Finland Track 1 ITL Project ID: FI Monitoring/Verification Period From: To: Date of Report: Version: 04 Prepared by: Volker Schmidt, N.serve Environmental Services GmbH N.serve Environmental Services GmbH Grosse Theaterstr Hamburg, Germany Directors Dr. Marten von Velsen-Zerweck Albrecht von Ruffer velsen@nserve.net ruffer@nserve.net Hypovereinsbank AG BLZ Kto-Nr Company registered at Amtsgericht Hamburg, Germany (HRB 90101) VAT ID: DE

2 Contents Page 1. INTRODUCTION GENERAL DESCRIPTION OF THE PROJECT ACTIVITY PROJECT PARTICIPANTS SECONDARY CATALYST TECHNOLOGY EMPLOYED BY PROJECT ACTIVITY PROJECT BOUNDARY OF THE PROJECT ACTIVITY APPLIED BASELINE AND MONITORING METHODOLOGY DETERMINATION OF BASELINE EMISSIONS (BENCHMARK EMISSIONS ELIGIBLE FOR ERU ISSUANCE) LEAKAGE PROJECT EMISSIONS DETERMINATION OF VERIFICATION PERIOD SPECIFIC PROJECT EMISSIONS MEASURING OF N 2 O DATA FOR THE CALCULATION OF PROJECT EMISSIONS MEASUREMENT DURING PLANT OPERATION APPLICATION OF INSTRUMENT CORRECTION FACTORS / ELIMINATION OF IMPLAUSIBLE VALUES CALCULATION OF EF N PROJECT EMISSIONS AND ALLOCATION OF ERUS MONITORING PLAN GENERAL DESCRIPTION... 8 THE EMISSION REDUCTIONS ACHIEVED BY THE PROJECT ACTIVITY ARE MONITORED ACCORDING TO THE APPROVED MONITORING METHODOLOGY AM0034, WHICH REFERS TO THE EUROPEAN NORM EN14181 (2004) STATIONARY SOURCE EMISSIONS - QUALITY ASSURANCE OF AUTOMATED MEASURING SYSTEMS AS GUIDANCE FOR INSTALLATION AND OPERATION OF THE AUTOMATED MONITORING SYSTEM (AMS) ACCORDINGLY THE SAMPLING IS CARRIED OUT CONTINUOUSLY USING A MULTIPLE-POINT SAMPLING TUBE OPTIMIZED TO THE SPECIFIC WIDTH AND HEIGHT OF THE TAIL GAS DUCT, AND THE EXPECTED GAS VELOCITIES IN THE TAIL GAS. TEMPERATURE AND PRESSURE IN THE TAIL GAS ARE MEASURED CONTINUOUSLY FOR CALCULATION OF THE GAS VOLUME FLOW AT STANDARD CONDITIONS... 8 FOR DETAILED INFORMATION ON THE INSTALLED AMS PLEASE REFER TO SECTION D.1 IN THE PDD DATA ACQUISITION DATA EVALUATION APPLICATION OF EN14181 PROCEDURES GHG CALCULATIONS ANALYSIS AND HANDLING OF MONITORING DATA FOR CALCULATION OF PROJECT EMISSIONS CALCULATION OF PROJECT EMISSIONS AND RELATED EMISSION REDUCTIONS ANNEX 1: MONITORING DATA AND PARAMETERS RELEVANT FOR CALCULATION OF PROJECT EMISSIONS AND DETERMINATION OF RELATED EMISSION REDUCTIONS ANNEX 2: DETAILS ON EVENTS RELEVANT FOR THE MONITORING ANNEX 3: DETAILS ON EVENTS RELEVANT FOR PLANT OPERATION ANNEX 4: CALIBRATION INFORMATION FOR PROJECT RELEVANT MONITORING EQUIPMENT YARA UUSIKAUPUNKI T Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 1/20

3 1. Introduction YARA Suomi Kemphos Oy (Helsinki), YARA International ASA, Oslo (Norway), and N.serve Environmental Services GmbH have implemented a GHG emission reduction project at YARA s nitric acid plant at Uusikaupunki T2 (near Turku), Finland. The GHG emission reductions are achieved by catalytic destruction of N 2 O. The objective of this monitoring report is to present the calculation of GHG emission reductions achieved by this project activity for the regarded monitoring period in a transparent manner and to claim issuance of the respective amount certified emission reductions (CERs). Although general aspects of the project and the monitoring of actual N 2 O emissions are referred to it is emphasized that it is not the purpose of this monitoring report reproducing the applicable PDD. For more details on specific information please refer to the respective PDD for this project activity. This monitoring report covers the achieved emission reductions of the project activity from 20/12/2010 to 31/08/2011, referred to as the 3 rd verification period. Starting date of the project activity: June 14 th 2009 ITL Registration No. at UNFCCC: FI UNFCCC JI Track: 1 Crediting period is: 01 Jun Dec 2012 Sectoral scope: 5: Chemical Industry Host Party for the Project activity: Finland City/ Town: Uusikaupunki, Finland 2. General description of the project activity The sole purpose of the proposed project activity is to significantly reduce current levels of N 2 O emissions from the production of nitric acid at YARA s nitric acid plant at Uusikaupunki T2 (near Turku), Finland. The nitric acid plant was designed by Uhde. Commercial nitric acid production started in May It is a 6.5 bar medium/high pressure plant with a daily design production output of 552 metric tonnes of HNO 3 (100% conc.) per day (23 thno 3 /hr * 24) 1. The plant is operated for around 350 days per year on average, resulting in a theoretical annual production design capacity of approximately 193,200 thno 3 /yr Previous to the implementation of the N 2 O abatement project the nitric plant emitted an average of 9.6 kgn 2 O/tHNO 3. Until the end of December 2012, this is considered the business as usual scenario. The project activity involves the installation of secondary N 2 O abatement catalyst technology inside the ammonia oxidation reactor, underneath the precious metal 1 All nitric acid amounts are provided in metric tonnes of 100% concentrated HNO 3, unless otherwise indicated. Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 2/20

4 gauzes. The expected average abatement performance is around 85% of current N 2 O emissions. For the purpose of monitoring the actual N 2 O emissions after installation of the abatement technology, YARA Uusikaupunki has installed and operates an Automated Monitoring System according to EU standards (EN14181) Project participants Name of Party involved (*) ((host) indicates a host Party) Finland (host) Norway Germany Private and/or public entity(ies) project participants (*) (as applicable) YARA Suomi Kemphos Oy (Helsinki) YARA International ASA, Oslo (Norway) N.serve Environmental Services GmbH (Germany) Kindly indicate if the Party involved wishes to be considered as project participant (Yes/No) No No No 3. Secondary Catalyst technology employed by project activity YARA Siilinjärvi has installed the YARA 58 Y 1 catalyst system consisting of an additional base metal catalyst that is positioned below the standard precious metal gauze pack in the ammonia burner. Operation with a full batch of catalyst installed started on June 14 th The secondary catalyst significantly reduces N 2 O levels in the gas mix resulting from the primary ammonia oxidation reaction. A wide range of metals (e.g. Cu, Fe, Mn, Co and Ni) have shown to be of varied effectiveness in N 2 O abatement catalysts. The YARA 58 Y 1 abatement catalyst is made of cylindrical pellets containing cobalt as an active ingredient. The abatement efficiency has been shown to be more than 80% in the following reaction: 2 N2O 2N2 + O2 If operated properly, the secondary catalyst system can significantly reduce N 2 O emissions for up to three years, before the catalyst material needs replacement. The YARA 58 Y 1 abatement catalyst has been proven by industrial testing not to affect actual plant production levels. Moreover no additional heat or other energy input is required, as the temperature levels present inside the ammonia oxidation reactor suffice to ensure the catalyst s optimum abatement efficiency. There are no additional greenhouse gases or other emissions generated by the reactions at the N 2 O abatement catalyst. Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 3/20

5 Project Activity Baseline 4. Project boundary of the project activity The boundary of the project activity includes the complete process equipment of the nitric acid plant. All gases relevant to the project activity and the nitric acid plant by that matter originate from the ammonia oxidation process that takes place at 700 C to 915 C and at about 6.5 bar at the precious metal gauzes inside the plant s ammonia oxidation reactor. The below table provides an overview on all emission sources within the project boundary: Source Gas Included? Justification / Explanation CO 2 No The process does not lead to any Nitric Acid Plant CH 4 No CO 2 or CH 4 emissions N 2 O Yes CO 2 CH 4 N 2 O CO 2 CH 4 N 2 O CO 2 No The process does not lead to any Nitric Acid Plant CH 4 No CO 2 or CH 4 emissions N 2 O Yes Leakage emissions CO 2 No No leakage emissions are expected. CH 4 No N 2 O No 5. Applied Baseline and Monitoring Methodology This project activity is based on the approved CDM Baseline and Monitoring Methodologies AM0034 / version 3.4 (with deviations) and AM0028 / version 4 (for monitoring of project emissions) Determination of baseline emissions (benchmark emissions eligible for ERU issuance) Deviating from AM0034, the baseline (business as usual) scenario relevant for the calculation of emission reductions eligible for issuance of ERUs is not determined based on measured factual (historic) emissions (baseline campaign). Instead a set of specific benchmark values were implemented by the Finnish DFP (national Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 4/20

6 Environmental Protection Department of the Finnish Ministry of the Environment) on 7 th April 2010 as to serve as baseline emission factors for N 2 O abatement projects in Finnish nitric acid plants. The below table displays the applicable benchmark values serving as baseline emission factors for determination of ERU relevant emission reductions: kg 2.5kg 2.5kg 1.85kg Table: Applicable JI project benchmark emissions factors for Finnish nitric acid plants For the case of subsequent revision of the applicable benchmark values during the course of the project activity, the project proponents explicitly reserved the right to retroactively apply respective new benchmark values for the relevant project periods. In addition, the project proponents understand that they may have to apply for an additional host country LoA if ERUs are to be claimed for the crediting period from 2013 onwards, depending on whether or not a JI Project would be viable under any new applicable legislation Leakage As per methodology AM0034, no leakage emission calculation is required since no leakage emissions have occurred as a result of the project activity nor are any expected in future Project Emissions Determination of verification period specific Project Emissions The Project Emission Factor is assessed based on the N 2 O concentration (NCSG n ) and off-gas volume flow (VSG n ) measurements conducted in the stack throughout any period of time for which the project proponents decide to undertake a Verification (the Verification Period ). Under the following pre-conditions the time period which is defined as Verification Period can be chosen freely: The first Verification Period commences with the crediting period starting date. Any Verification Period after the first one will start at the termination date of the previous Verification Period. No Verification Period may exceed the crediting period ending date. Over the duration of the project activity, N 2 O concentration and gas volume flow of the tail gas in the stack of the nitric acid plant, as well as the related nitric acid production of the plant (in 100% concentration), will continuously be measured. Based on these parameters the Project Emission Factor (EF n ) given as kgn 2 O/tHNO 3 can be determined at any given point in time for the respective time period. Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 5/20

7 Measuring of N 2 O data for the calculation of project emissions Throughout the project s crediting period, N 2 O concentration (NCSG n ) and volume flow of the stack gas (VSG n ) are to be monitored continuously. The installed automated monitoring system (AMS) provides separate hourly average values for NCSG n and VSG n based on 5-second interval measurements that are recorded and stored electronically. The N 2 O data sets (NCSG n and VSG n average values for each operating hour) are marked and can be identified by means of a unique time / date key. The operating hours (OH n ) are recorded by the plant s process control system as well is the nitric acid production output (NAP n, 100% concentration). Since the determination of ERU relevant emission reductions is conducted based on Benchmark Emission Factors (EF BM ) the monitoring of all parameters exclusively related to the Baseline Emission Factor (EF BL ) according to AM0034 is irrelevant and is thus not regarded. In the case of AMS downtime for any part of one hour, the hourly average value is calculated pro-rata from the remaining available data for the hour in question. If the remaining available data for that hour constitutes less than 2/3 of the hour (less than 40 minutes), that hour is considered missing and substitute values are applied. In the case of AMS downtime that constitutes of malfunction of the AMS leading to application of substitute values, missing data for the relevant hours is replaced with either a) the highest value measured during the whole of the relevant verification period or b) the highest value measured during the whole of the previous complete production campaign, whichever is the higher. Determination of these highest values is based on measurements during periods of standard AMS operation and recording after elimination of mavericks, applicable to hourly average values. In the case of equipment downtime due to routine calibration measurement values for the relevant hours are substituted by the last valid measured hourly average values before the calibration or maintenance works Measurement during plant operation Only those data sets collected during operation of the plant shall be used as a basis for determining the Verification Period specific project emissions. Status signals from the plant operation system (AOR temperature range and maximum ammonia to air ratio) will be constantly monitored in order to determine whether the plant is in operation or not. The trip point range for AOR temperature is 700 C (min) to 915 C (max), while the maximum ammonia to air ratio at which the process is taken out of operation is 11.2%. Consequently, any NCSG and VSG data sets recorded at times when the plant was shut down are excluded from the derivation of EF n. The number of operating hours (OH n ) is reduced accordingly. For the avoidance of doubt, data sets containing values during shut down of the plant are not to be regarded as AMS downtime readings (as defined above). Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 6/20

8 A Coriolis flow meter is used for measuring continuous HNO 3 -flow and HNO 3 - concentration Application of instrument correction factors / elimination of implausible values The correction factors derived from the calibration curve of the QAL2 audit for all components of the AMS as determined during the QAL2-test in accordance with EN14181 are applied to both VSG and NCSG. For all N 2 O data sets a plausibility check is conducted in accordance with current best practice monitoring standards. All data sets containing values that are implausible are eliminated and replaced by default values according to the above mentioned practice Calculation of EF n The total mass of N 2 O emissions during a Verification Period (PE n ) is calculated based on continuous measurements of the N 2 O concentration in the tail gas and the volume flow rate of the tail gas stream. The N 2 O mass-flow is calculated on the basis of hourly average values according to the following equation: PE n x vmp x 1 NCSG x VSG x 9 10 M (tn 2 O) x The plant-specific project emissions factor representing the average N 2 O emissions per tonne of nitric acid over the respective Verification Period is derived by dividing the total mass of N 2 O by the total output of nitric acid (100% concentration) during this specific time period. The average N 2 O emissions per metric tonne of 100% concentrated nitric acid during the Verification Period (EF n ) is calculated as follows: EF n = (PE n / NAP n ) (tn 2 O/tHNO 3 ) where: PE n total specific N 2 O emissions during the Verification Period (tn 2 O) EF n Emissions factor used to calculate the emissions from the defined Verification Period n (tn 2 O/tHNO 3 ) NCSG x Hourly average concentration of N 2 O in the tail gas stream in each measurement time interval of 1 hour during the verification measurement period (vmp) (mgn 2 O/m 3 ) VSG x Hourly average tail gas volume flow rate in each measurement time interval of 1 hour during the verification measurement period (m 3 /h) NAP n Nitric acid production during the Verification Period (thno 3 ) M x Length of measurement interval x (h) x Each measurement interval during the verification period (1h) vmp Verification measurement period Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 7/20

9 5.4. Project Emissions and Allocation of ERUs The emission reductions based on which ERUs will be issued for the project activity are determined by deducting the project-specific emission factor from the Benchmark Emission Factor and multiplying the result by the production output of 100% concentrated nitric acid over the period for which ERUs are to be claimed and the GWP of N 2 O, as follows: ERU = (EF BM - EF n )/1000 x NAP x GWP N2O (tco 2 e) Where: ERU = Emission reductions awardable to the project for the Verification Period that are at the project operator s free disposal (tco 2 e) NAP = Nitric acid production for the Verification Period (thno 3 ). EF BM = Benchmark Emissions factor according to host country approval (kgn 2 O/tHNO 3 ); see section A.5 (last paragraph) of the PDD for further information. EF n = Project Emission Factor for the defined Verification Period n (kgn 2 O/tHNO 3 ). GWP N2O = 310 tco 2 e/tn 2 O For the avoidance of doubt, theoretically generated negative emission reductions during production periods with emission levels above the applicable Benchmark Emissions Factor that would result in reduced ERU amounts DO NOT apply! However, in accordance with the methodology AM0034, the maximum value of NAP eligible for ERU issuance shall not exceed the design capacity of the nitric acid plant. According to the nameplate (design) and considering 365 days of operation per year the total yearly capacity is 199,608 thno 3. Issuance of ERUs can only be claimed for tonnes of nitric acid produced up to a maximum amount equal to that capacity. For details on Monitoring Data and Parameters relevant for calculation of Project Emissions and determination of related Emission Reductions refer to Annex I. 6. Monitoring plan 6.1. General description The emission reductions achieved by the project activity are monitored according to the approved monitoring methodology AM0034, which refers to the European Norm EN14181 (2004) Stationary source emissions - Quality assurance of automated measuring systems as guidance for installation and operation of the Automated Monitoring System (AMS). Accordingly the sampling is carried out continuously using a multiple-point sampling tube optimized to the specific width and height of the tail gas duct, and the expected Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 8/20

10 gas velocities in the tail gas. Temperature and pressure in the tail gas are measured continuously for calculation of the gas volume flow at standard conditions. From start of the project until August 13 th 2009 a FTIR Gasmet CEMS model DX4000 Analyser was installed as part of the AMS and used for measurement of N 2 O concentration data. This analyzer was then replaced by a Dr. Födisch MCA 04 Analyzer (installed July 20 th 2009). The same applies for the Dr. Födisch FMD 99 Volume Flow Meter which was installed July 20 th 2009 and taken into regular operation on August 13 th Both N 2 O-Analyzers and the flow meter are QAL1 approved and have been tested and approved during the QAL2 performance test carried out in September For detailed information on the installed AMS please refer to section D.1 in the PDD Data acquisition The nitric acid plant is equipped with a Honeywell PHD (version 215) data acquisition system which records and stores all monitoring values for NCSG, VSG, TSG, PSG as well as different status signals of the AMS. The data is stored simultaneously on different hard disks as to prevent from loss of data in case of hard disk failure. Data directly related to plant operation, such as oxidation temperature, oxidation pressure, ammonia flow rate, ammonia to air ratio and nitric acid production rate, is stored in the same data logging system Data evaluation Hourly average values are derived for all monitored parameters from the data management system Honeywell PHD. These data sets are exported to EXCELformat and delivered by or data-cd to N.serve who is responsible for the correct analysis and processing of the delivered data in accordance with the PDD as well as for the preparation of the monitoring report. Processing and analysis of the monitoring data is carried out in the EXCEL file in a transparent manner. All steps of the data handling can be traced from raw data to the actual calculation of the relevant Project Emission Factor for the respective verification period. The data handling includes plausibility check of the delivered data (and respective clarification of any issues if needed), elimination of data for all hours where the nitric acid plant was taken out of operation (complete hours with no plant operation at all, according to plant operation status signal), and application of substitute values during times of AMS downtime. Substitute values applied for downtime (less than 2/3 of valid data available for the specific hour) due to AMS malfunction constitute of the highest measured value for NCSG and VSG out of the remaining set of values measured during standard plant operation whereas the last measured value considered valid is applied for those hours where analyzer calibration or AMS maintenance was performed. Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 9/20

11 Calculation of the EF n as well as the resulting emission reductions eligible for issuance of respective ERUs relevant for the specific verification period is done according to the before outlined proceeding Application of EN14181 procedures All requirements for QAL1, QAL2 and QAL3 according to EN14181 have been adapted and are practically applied at the nitric acid plant. Respective procedures and QA measures have been implemented and were integrated in the existing QA system. Additional information regarding QAL measures are to be found in Annex 2. QAL 1 The relevant instruments of the installed AMS, the Dr. Födisch MCA 04 Gas Analyzer 2 and Dr. Födisch FMD 99 stack gas flow meter 3, both have QAL1 approval as specified by EN ISO The same applies for the FTIR Gasmet CEMS model DX4000 Analyzer 4 which was utilized before installation of the Dr. Födisch MCA 04. QAL2 According to AM0034 and EN the QAL2 test is to be performed at least every 3 years. The most recent QAL2 test was conducted by Müller-BBM September 18 h to 20 th in 2009 (Report No. M82 450/12 and M82 450/18) with successful approval of the AMS. The QAL2 reports are stating correction factors to be applied for the results of N 2 O concentration, stack gas flow, stack gas temperature and stack gas pressure. The factors are applied in the calculation of emission reductions. AST In addition to the QAL2 test, Annual Surveillance Tests (AST) are to be conducted in accordance with EN Since the last QAL 2 test was conducted in September 2009 the first AST was performed by Müller BBM on October 4 th 2010 (Report-No.: M88 844/1). QAL3 The QAL3 measures as required by EN14181 refer to ongoing quality assurance and maintenance procedures and documentation conducted by the plant operators. This documentation demonstrates that the AMS was well maintained during operation aiming on assuring its function within the required specifications. 2 TÜV Immissionsschutz Energiesysteme GmbH, Köln TÜV Rheinland Group Report No. 936/ /A from 13. July 2005 and TÜV Rheinland Immissionsschutz und Energiesysteme GmbH, Zertifikatsnummer TÜV Rheinland Sicherheit und Umweltschutz GmbH, Köln (report number 936/ /C vom 18. Februar 2000) and TÜV Immissionsschutz und Energiesysteme GmbH, Köln (report number 936/rö from 15. October QAL 1 tested by SIRA Certification Service and approved and acknowledged officially by MCERTS: Certificate No. SIRA MC /02 Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 10/20

12 Relevant measures under QAL3 are the performance of regular periodic zero and span checks on the Analyzer and respective adjustments or maintenance works to the AMS whenever necessary. For compliance with these requirements YARA established the below calibration and maintenance procedures, carried out on regular basis by the YARA operational staff. AMS calibration and QA/QC procedures The monitoring equipment installed on behalf of the N 2 O abatement project was integrated into the existing ISO 9001 procedures. N 2 O-Analyzer Zero Calibration Conditioned ambient air is used as reference gas for zero calibration. The zero calibration is conducted automatically every 24 hours. Manual calibrations are done at least once per month (the calibration frequency might be adjusted if necessary). N 2 O-Analyzer Span calibration Manual span calibrations are done with certified calibration gas at least once per month (the calibration frequency might be adjusted if necessary). The calibration results and subsequent actions are all documented as part of the QAL3 documentation. In addition, the analyzer room and equipment is visually inspected at least once a week and the results are documented in analyzer specific log-books. Flow meter calibration procedures The flow meter FMD 99 itself does not need to be calibrated since it is a physical device without drift. Therefore, it is sufficient to regularly inspect the physical condition of the Dr. Födisch FMD, which is regularly checked for the following: Visual check; electric check; cleaning of probe, if necessary. In addition the flow meter is checked during the QAL2 and AST tests by an independent laboratory by comparison to standard reference method (SRM). 7. GHG Calculations The calculation of the Project Emissions (PE n ), the Project Emission Factor, and related Emission Reductions (ER) eligible for issuance of ERUs for the 1 st verification period of the YARA Uusikaupunki T2 N 2 O abatement project in Finland were carried out as excel calculations based on the raw data (hourly averages) provided by the plant operator (YARA). The raw data was checked for plausibility and necessary adjustments (elimination of invalid data, application of substitute values, etc.) were made in accordance with the PDD. All steps of data handling were applied in a transparent manner and can be traced in the excel file which will be provided to the verifying AIE along with this monitoring report. Annex 2 of this report provides additional information regarding any extraordinary events related to plant operation and monitoring equipment during the verification period as well as the resulting steps regarding data handling. Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 11/20

13 7.1. Analysis and handling of monitoring data for calculation of project emissions For this 3 rd verification period a total of 6,119 hourly average data sets were recorded and extracted from the AMS (raw data). In the course of the subsequent data handling process 1,144 data sets out of these were excluded from the calculations (by excel analysis) due to clear shut down of the nitric acid plant (according to plant operation status signal). During times of plant operation 5 AMS down time events have been recorded indicated by the analyzer status signal. For these hours an adequate substitute values has been applied as per the PDD (highest valid measurement during the complete previous production campaign, as this is higher than the highest value during this current monitoring period). At the same time 21 substitutions (last or next valid measurement before or after the respective hour) have been made due to analyser calibration indicated by the analyzer maintenance signal. Only one down-time hour was recorded for the tail gas volume flow meter (VSG measurement), which was replaced by the maximum valid measurement during this current verification period (as this value is higher than the one from the previous) Calculation of Project Emissions and related Emission Reductions Based on the processed (data handling) monitoring data the total amount of N 2 O emissions released to the atmosphere on account of the project activity during this verification period was determined at PE n = t N 2 O. Taking into account the amount of Nitric Acid produced during this same time period the specific N 2 O Emission Factor for this verification period can be determined as follows: EF n = PE n / NAP n = t N 2 O/ t HNO 3 The amount of CO 2 e Emission Reductions eligible for issuance of ERUs is calculated by applying the difference between the applicable baseline benchmark N 2 O Emission Factor (EF BM ) and the project specific N 2 O Emission Factor (EF n ) to the respective amount of Nitric Acid Production (NAP n ). Applying the specific global warming potential of N 2 O (GWP N2O = 310) then delivers the respective amount of achieved CO 2 e Emission Reductions that are claimed for issuance of ERUs. Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 12/20

14 ER n = (EF BM - EF n ) * NAP n * 310 = 65, = 65,096 ERUs (t CO 2 e) The below table summarizes all relevant monitoring data and parameters used for calculation of the emission reductions claimed for issuance of ERUs. PE n t N 2 O Calculated from monitoring data delivered by AMS (Sum of NCSG * VSG) NAP n 97, t HNO3 Measured by Coriolis Nitric Acid Flow Meter EF n t N 2 O/ t HNO 3 Calculated EF BM t N 2 O/ t HNO 3 Determined by Finish authorities GWP N2O 310 t CO 2 e/t N 2 O IPCC default factor ER n 65, t CO 2 e Calculated ERUs 65,096 ERUs (t CO 2 e) Rounded result from ER calculation Table: Monitoring Data and Parameter Values used for ER calculation Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 13/20

15 Annex 1: Monitoring Data and Parameters relevant for calculation of Project Emissions and determination of related Emission Reductions Data / Parameter: EFBM Data unit: kgn2o/thno3 (tn2o/thno3) Description: Benchmark (Baseline) N2O Emission Factor applicable for N2O abatement projects at Finish Nitric Acid Plants Source of data used: National Environmental Protection Department of the Finnish Ministry of the Environment Value applied: Year kgn2o/thno3 tn2o/thno , , , , Justification of the choice of data or description of Decision from 7 th April Benchmark factors were determined as to serve as baseline emission factors for N2O abatement projects in Finnish nitric acid plants. measurement methods and procedures actually applied : Any comment: For the case of subsequent revision of the applicable benchmark values during the course of the project activity, the project proponents explicitly reserved the right to retroactively apply respective new benchmark values for the relevant project periods. Data / Parameter: NCSG Data unit: mgn2o/nm 3 Description: N2O concentration in tail gas stream Source of data used: Dr. Födisch MCA04 Analyzer Value applied: Continuous measurement, frequency every 5 seconds Justification of the choice of data or description of measurement methods and procedures actually applied : Any comment: The Analyzers is in compliance with the requirements from AM0034 and EN14181, and has valid approval for QAL1 and QAL2. The QAL 2 correction factor for the Dr. Födisch MCA 04 Analyzer is Calibrations are performed regularly according to vendor s specifications. QAL2, AST and QAL3 measures are applied according to EN Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 14/20

16 Data / Parameter: VSG Data unit: Nm 3 /h Description: Stack Gas Volume Flow Source of data used: Dr. Födisch FMD 99 Volume Flow Meter Value applied: Continuous measurement, frequency every 5 seconds Justification of the choice of data or description of measurement methods and procedures actually applied : The equipment is in compliance with the requirements from AM0034 and EN14181 having valid approval for QAL1 and QAL2. Volume flow measurements are normalized by parallel temperature and pressure measurements in the stack; parameters TSG (temp.) and PSG (press.). The QAL 2 correction factor for the Dr. Födisch FMD 99 for stack gas flow is For calculation of normalized stack gas flow the QAL2 corrected input data for flow, temperature and pressure are used the result is: VSG QAL2 corrected and normalized. Equation used for normalization: VSG = Flow*273.15/( TSG)*PSG/ VSG: Stack gas flow in standard conditions [Nm³/h] Flow: Stack gas flow in stack conditions [m³/h] TSG: Stack gas temperature [ C] PSG: Stack gas pressure [mbar] : Standard temperature [K] : Standard pressure [mbar] Any comment: Calibrations are performed regularly according to vendor s specifications. QAL2, AST and QAL3 measures are applied according to EN Data / Parameter: TSG Data unit: C Description: Stack Gas Temperature Source of data used: Dr. Födisch FMD 99 Volume Flow Meter Value applied: Continuous measurement, frequency every 5 seconds Justification of the The equipment is in compliance with the requirements from AM0034 and choice of data or EN14181 having valid approval for QAL1 and QAL2. Volume flow measurements description of are normalized by parallel temperature and pressure measurements in the stack; measurement methods parameters TSG (temp.) and PSG (press.). and procedures actually The QAL 2 correction factor for the Dr. Födisch FMD 99 for stack gas applied : temperature is Any comment: Calibrations are performed regularly according to vendor s specifications. QAL2, AST and QAL3 measures are applied according to EN Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 15/20

17 Data / Parameter: Data unit: Description: Source of data used: Value applied: Justification of the choice of data or description of measurement methods and procedures actually applied : Any comment: PSG Pa Stack Gas Pressure Dr. Födisch FMD 99 Volume Flow Meter Continuous measurement, frequency every 5 seconds The equipment is in compliance with the requirements from AM0034 and EN14181 having valid approval for QAL1 and QAL2. Volume flow measurements are normalized by parallel temperature and pressure measurements in the stack; parameters TSG (temp.) and PSG (press.). The QAL 2 correction factor for the Dr. Födisch FMD 99 for stack gas pressure is Calibrations are performed regularly according to vendor s specifications. QAL2, AST and QAL3 measures are applied according to EN Data / Parameter: NAPn Data unit: thno3 Description: Nitric Acid Production at 100% concentration during verification period Source of data used: Coriolis flow meter for flow and concentration measurements Value applied: 97, Justification of the Continuous measurement of HNO3 mass flow and concentration. In addition the choice of data or concentration measurement is checked 1/shift and 2/month by a central description of laboratory. measurement methods NAP eligible for issuance of ERUs is capped at 199,608193,200 thn3/y. Related and procedures actually to the 3 rd verification period (255 days) the relative cap is 139,452.2 thno3. The applied : actual NAP is below the cap and thus fully eligible for issuance of ERUs. Any comment: Calibrations are performed regularly according to vendor s specifications. Data / Parameter: PE n Data unit: tn2o Description: Total amount of N2O emitted by project activity during verification period Source of data used: Calculated based on monitoring data Value applied: Justification of the Calculation based on Verification Periods and instead of standard production choice of data or campaigns. In order to ensure a conservative approach in this context, project description of emissions are calculated in accordance with the methodology AM0028, which measurement methods advocates calculating emissions on an hourly basis (and not on a campaign and procedures actually basis with statistical analysis). Emissions are calculated on an hourly basis, using applied : hourly average values for NCSG and VSG. Any comment: none Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 16/20

18 Data / Parameter: EFn Data unit: kgn2o/thno3 (tn2o/thno3) Description: N2O Emission Factor applicable verification period Source of data used: Calculated based on monitoring data Value applied: kgn2o/thno3 ( tn2o/thno3) Justification of the choice of data or Calculation according to agreed proceeding closely related to CDM methodologies AM0034/AM0028; based on monitoring data delivered by AMS. description of measurement methods and procedures actually applied : Any comment: none Data / Parameter: ERn / ERU Data unit: tco2e Description: Emission Reductions achieved eligible for issuance of ERUs Source of data used: Calculated Value applied: 65, (65,096 = rounded claim for issuance of ERUs) Justification of the choice of data or description of Calculation according to agreed proceeding closely related to CDM methodologies AM0034 and AM0028; based on monitoring data delivered by AMS. measurement methods and procedures actually applied : Any comment: none Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 17/20

19 Annex 2: Details on Events relevant for the Monitoring NCSG VSG TSG Analyzer downtime: Analyzer calibration and maintenance Stack gas volume flow meter downtime: PSG NAP Analyzer: Dr. Födisch type MCA 04 QAL1 tested by TÜV Rheinland QAL 2 tested by Müller-BBM, September 2009 Report No. M82 450/12 QAL2 correction factor = AST by Müller BBM; 4 th October 2010 Report-No. Report-No.: M88 844/1. 5 events during plant operation indicated by analyzer status signal 21 events during plant operation - Analyzer routine calibration and maintenance indicated by maintenance status signal (more than 1/3 of one hour). VSG measurement by Dr. Födisch FMD 99 QAL 1 tested by TÜV Rheinland QAL 2 tested by Müller-BBM September 2009 Report No. M82 450/12 Corrected to standard conditions by TSG and PSG QAL2 correction factor: AST by Müller BBM; 4 th October 2010 Report-No. Report-No.: M88 844/1. One event ( :00) during plant operation indicated by volume flow meter status signal TSG measurement by Dr. Födisch FMD 99 QAL 1 tested by TÜV Rheinland QAL 2 tested by Müller-BBM September 2009 Report No. M82 450/12 For correction of VSG to standard conditions QAL2 correction factor: AST by Müller BBM; 4 th October 2010 Report-No. Report-No.: M88 844/1. PSG measurement by Dr. Födisch FMD 99 QAL 1 tested by TÜV Rheinland QAL 2 tested by Müller-BBM September 2009 Report No. M82 450/12 For correction of VSG to standard conditions QAL2 correction factor: AST by Müller BBM; 4 th October 2010 Report-No. Report-No.: M88 844/1. NAP results from Coriolis Mass Flow Meter Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 18/20

20 Annex 3: Details on Events relevant for plant operation :00 Unscheduled shutdown (synergi ) : :00 Scheduled shutdown : :00 Unscheduled shutdown (synergi ) : :00 Scheduled shutdown : :00 Auxillary compressor start :00 Unscheduled stopp (Synergi ) :00 Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 19/20

21 Annex 4: Calibration information for project relevant monitoring equipment YARA Uusikaupunki T2 Data Meas ured VSG NCS G NAP PSG TSG TAG Number ILO.T2- FI9400.M ES ILO.T2- QI9302.O U2 T2- FI7244.M ES ILO.T2- PI9400.M ES ILO.T2- TI9400.M ES Sampling Location Tail gas stack Tail gas stack Between absorber and HNO 3 storage tanks Tail gas stack Tail gas stack Device Description (Supplier and Type) Dr. Födisch FMD 99 Dr. Födisch FMD MCA04 Coriolis Flow meter Krohne, Optimass 7000 T50 Dr. Födisch FMD 99 Dr. Födisch FMD 99 Calibration Frequency Once per Year: QAL2 per EN at least every 3 years, AST per EN in years in between QAL2 tests -1/d auto calibration (zero) - regularly (at least every month) manual verification against calibration gas cylinder Once per Year: QAL2 per EN at least every 3 years, AST per EN in years in between QAL2 tests no calibration requirements however, crosschecking with other process parameters Once per Year: QAL2 per EN at least every 3 years, AST per EN in years in between QAL2 tests Once per Year: QAL2 per EN at least every 3 years, AST per EN in years in between QAL2 tests Calibration During Monitoring Period (Date, Supplier and Report number) 18/09/ /09/2009, Müller- BBM GmbH Report No. M82 450/12 (QAL2 test) AST by Müller BBM; 4th October 2010; Report-No. Report-No.: M88 844/1. QAL 3 procedures according to EN applied by YARA, 8/09/ /09/2009, Müller- BBM GmbH Report No. M82 450/12 (QAL2 test) AST by Müller BBM; 4th October 2010; Report-No. Report-No.: M88 844/1. during the on-side visit) 12/10/2009 Calibration by supplier Krohne ltd 18/09/ /09/2009, Müller- BBM GmbH Report No. M82 450/12 (QAL2 test) AST by Müller BBM; 4th October 2010; Report-No. Report-No.: M88 844/1. 18/09/ /09/2009, Müller- BBM GmbH Report No. M82 450/12 (QAL2 test) AST by Müller BBM; 4th October 2010; Report-No. Report-No.: M88 844/1. Monitoring Report No.3 Vers.04 YARA Uusikaupunki T2 N2O abatement project in Finland 20/20