National Petroleum Refiners of South Africa. (Pty) Ltd. (NATREF) AEL Annual Emission Report. July 2015 June Fezile Dabi District Municipality

Transcription

1 National Petroleum Refiners of South Africa (Pty) Ltd. (NATREF) AEL Annual Emission Report July 2015 June 2016 Prepared for Fezile Dabi District Municipality Directors: B E Klingenberg (Chairman), P Basson, T Booley, E Cameron, A de Klerk, R Duchateau (French), C M R Joret des Closières (French), S A M Nassir (Alternate) (French), J-M Sohier (Belgian)

2 EXECUTIVE SUMMARY The content of this report is aligned with the requirements of section 8 of Natref s Atmospheric Emissions Licence No. FDDM-MET P1 of 30 March 2015, which requirements include the following: Pollutant emissions trends Greenhouse gas emissions Compliance audit reports Major upgrades projects (i.e. abatement equipment or process equipment) The information pertaining to these items are addressed in the relevant subsection in this report. The following conditions are highlighted in this report: PM emissions at the main stack are reported at 130 mg/nm 3 and 111 mg/nm 3 respectively for the December 2015 and February 2016 sampling runs and compared to the limit of 180 mg/nm 3. SO 2 emissions at the main stack are reported at 1080 mg/nm 3 during the February 2016 sampling campaign and aligned with the AEL item 8 requirements, and compared to the limit of 1200 mg/nm 3. Natref arranged a second emissions sampling campaign during May 2016 to meet the requirement of biannual sampling. SO 2 emissions at the main stack during the May 2016 sampling campaign were reported at 779 mg/nm 3 and aligned with the AEL item 8 requirements, and compared to the limit of 1200 mg/nm 3. NOx emissions at the main stack are reported at 299 mg/nm 3 and 208 mg/nm 3 respectively for December 2015 and February 2016 sampling campaigns and compared to the limit of 520 mg/nm 3. DECLARATION Unless otherwise specified in this report, Natref confirms that the sampling campaigns for periodic emissions monitoring, informing the content of this report, were conducted during normal plant operating conditions. 2 of 12

3 REPORT DETAILS REFERENCE REPORT TITLE FDDM-MET P1 Annual Emission Report DATE SUBMITTED: 31 August 2016 PREPARED FOR: PREPARED BY: Fezile Dabi District Municipality Free State Province (Licencing Authority) National Petroleum Refiners of South Africa (Pty) Ltd. Jan Haak Road, Sasolburg PO Box 234, Sasolburg, 1947 Tel: Montrose ERF 8021 and ERF 8024, DESCRIPTION OF SITE (Erf) INDUSTRY SECTOR SITE COORDINATES Emission Control Officer Remaining Extent of Driefontein Farm No 2, Industrial zone, Sasolburg Northern Industries Petroleum Refinery S E Charlene Wassenaar 3 of 12

4 TABLE OF CONTENTS Description Page 1 INTRODUCTION 6 2 CONTRACTED SERVICE PROVIDER C&M Consulting Engineers 7 3 Emission survey RESULTS Greenhouse gas emissions Compliance audit reports Major upgrade projects 10 4 Non-compliances 11 5 Conclusions 12 4 of 12

5 ACRONYMS The following abbreviations appear in this report: AEL CO CO 2 EMI ESP FCC FDDM FY GHG LDAR MES NAQO NATREF NEMAQA NOx NO NO 2 NTP PM SO 2 SRU US EPA VOC Atmospheric Emissions License Carbon monoxide Carbon dioxide Environmental Management Inspectorate Electrostatic Precipitator Fluidized Catalytic Cracking Fezile Dabi District Municipality Financial Year Greenhouse gas Leak Detection and Repair Minimum Emission Standards (published in terms of section 21 of NEMAQA) National Air Quality Officer National Petroleum Refiners of South Africa (Pty) Ltd. National Environmental Management: Air Quality Act Oxides of Nitrogen Nitrogen monoxide Nitrogen dioxide Normal Temperature and Pressure (Temperature at 273 K, Pressure at kpa) Particulate Matter Sulphur dioxide Sulphur Recovery Unit United States Environmental Protection Agency Volatile Organic Compounds 5 of 12

6 1 INTRODUCTION Section 8 of Natref s AEL FDDM-MET P1 of 30 March 2015, requires Natref to submit its annual emission report in the form provided by section 17 of Minimum Emission Standards of November 2013 under the NEMAQA. This report serves to satisfy these requirements. As per applicable licensing requirements, Natref s emission monitoring program entails taking gas samples at the main stack and the six small local stacks bi-annually. This report covers emission surveys conducted during the period of 1 July 2015 up to 30 June The appointed independent service provider performed VOC, isokinetic analyses, together with inorganic gas analyses. The emissions reported on is against the applicable limits in the AEL, which incorporates the relevant postponement decision, for the abovementioned period. 6 of 12

7 2 CONTRACTED SERVICE PROVIDER Natref contracted C&M Consulting Engineers to conduct the emission survey for purposes of informing the contents of this report. 2.1 C&M Consulting Engineers The services provided by C&M for source emission testing are as follows: Basic stack emission testing; Automatic Isokinetic stack sampling for compliance, commissioning, process control and efficiency testing; Fugitive and area specific emission assessments; Vent emission testing; Reports based on analysis of dust, SO 2, NO 2, metals, VOCs and H 2 S. Their contact details appear in Table below Table 2.1.1: C & M CONSULTING ENGINEERS Contact details: Physical address Postal address 170 Watermeyer Street, Meyerspark PO BOX LYNNWOOD RIDGE PRETORIA 0040 South Africa Telephone No: /5 Fax No Contact Person Carlo Sinosich, Sampling Manager carlo@airpolguys.com 7 of 12

8 3 EMISSION SURVEY RESULTS The MES and the AEL conditions require Natref to report emissions at NTP dry basis and 10% Oxygen. This reporting approach results in a variation to reporting methods previously applied. Therefore Natref had to ensure that the emission monitoring Service Providers were informed and appraised of the new AEL conditions, incorporating the conditions of Natref s postponement decision as granted by the NAQO on the 23 February This report gives an overview of the sampling campaigns conducted at the Natref main stack and local stacks. The results are tabled below: Table Point Source Main Stack LOCAL STACKS B14001 B14002 B14005 B14006 Volumetric flow rate (Nm 3 /h) SO 2 Emissions 1200 Results not applicable due to method used PM Emissions 180 NOx Emissions 520 Date of Sampling /10/ /10/ /10/ /10/ /10/ B /10/ B /10/2015 Table 3.1 indicates the following: SO 2 emissions from the main stack were not reported due to incorrect analytical method used. SO 2 emissions from the local stacks were within the prescribed AEL limit. PM emissions from the main stack were within the limit. 199 mg/nm 3 is within the 10% variability as per EPA method. Resample commissioned (December 2015). PM emissions from the local stacks were within the prescribed AEL limit. NOx emissions from the main stack and the local stacks were within the respective prescribed AEL limits. 8 of 12

9 Table 3.2 Point Source Main Stack (repeat) Volumetric flow rate (Nm 3 /h) SO 2 Emissions 1200 Results not applicable due to method used. PM Emissions 180 NOx Emissions Date of Sampling 14-15/12/2015 Table Point Source Main Stack LOCAL STACKS B14001 B14002 B14005 B14006 Volumetric flow rate (Nm 3 /h) SO 2 Emissions 1200 PM Emissions 180 NOx Emissions 520 Date of Sampling /02/ /02/ /02/ /02/ /02/ B /02/ B /02/2016 Table 3.3 indicates the following: SO 2 emissions from the main stack were within the prescribed AEL limit. SO 2 emissions from the local stacks were within the prescribed AEL limit. PM emissions from the main stack were within the prescribed AEL limit. PM emissions from the local stacks were within the prescribed AEL limit. NOx emissions from the main stack and the local stacks were within the respective prescribed AEL limits. Table of 12

10 Point Source Main Stack (repeat) Volumetric flow rate (Nm 3 /h) SO 2 Emissions 1200 Date of Sampling /05/ Greenhouse gas emissions In the absence of the promulgation of the GHG Reporting Regulations, Natref voluntarily submitted its 2015 GHG inventory to the national Department of Environmental Affairs using the prescribed IPCC mass balance approach. 3.2 Compliance audit reports An independent compliance audit was conducted but that the report did not yield any noncompliances relevant for purposes of this report with regards to the AEL. 3.3 Major upgrade projects There were no major upgrades implemented during FY16 reporting year. Natref has presented its air quality improvement roadmap to the Sasolburg ITT as well as the VTAPA MSRG, and continues to expend resources in advancing projects on its air quality improvement roadmap. To further improve on PM at the FCC, the following two projects are planned: Replacement of the FCC cyclones separators by Oct/Nov 2016 during the FCC shutdown; Subsequent PM abatement technology with appropriate performance to further reduce PM emissions. The quarterly update air quality improvement roadmap report was submitted to the NAQO at the end of July of 12

11 4 NON-COMPLIANCES There were no non-compliances noted. Natref however had an EMI inspection conducted on the 14 December The report from the EMI was received at the beginning of August 2016 and Natref is preparing a response. Natref is committed to legal compliance and in collaborating pro-actively with the local licensing authority in addressing compliance challenges as these may arise from time to time. 11 of 12

12 5 CONCLUSIONS Based on the emission results indicated in this report, Natref emissions were reported within the prescribed AEL limits at the main stack as well as at the six local stacks. 12 of 12