Sasol South Africa. Secunda Synfuels Operations. Annual Emission Report

Transcription

1 Sasol South Africa Secunda Synfuels Operations AEL No: Govan Mbeki Sasol Chemical Industries (Pty) Ltd 0016/2015/F02 Annual Emission Report Prepared for Gert Sibande District Municipality 31 August 2015 Reporting period: July 2014 June 2015 Date of submission: 31 August

2 TABLE OF CONTENTS 1. INTRODUCTION SERVICE PROVIDERS RESULTS POLLUTANT EMISSIONS EMISSION TRENDS COMPLIANCE AUDIT REPORTS MAJOR UPGRADE PROJECTS GREENHOUSE GAS EMISSIONS PUBLIC CONSULTATION FORUM ACTIONS TAKEN ON COMPLAINTS RECEIVED HIGHVELD PRIORITY AIR QUALITY MANAGEMENT PLAN AND OFFSET PROGRAM 20 Annexure Annexure

3 1. INTRODUCTION Emission monitoring was done by independent service providers. Section 3 of this document summarises the emissions measured compared to the maximum emission rates as per the Atmospheric Emission License. 2. SERVICE PROVIDERS SGS South Africa and Levego are the independent parties who did the necessary emission testing. The contact details of Levego and SGS are shown in table and below. Table 2.1.1: Levego Contact details Building R6, Pinelands Site Physical address Ardeer Road, Modderfontein 1645 PO Box 422, Postal address Modderfontein 1645 Telephone No: Fax No info@levego.co.za Table 2.1.2: SGS Contact details 58 Mellville Street, Booysens Physical address Johannesburg, 2135 South Africa P.O. Box 82582, Southdale Postal address Johannesburg, 2135 South Africa Telephone No: Fax No envi.africa@sgs.com 3

4 3. RESULTS 3.1 POLLUTANT EMISSIONS Point source code Pollutant Daily average concentration measured (mg/nm 3 ) at 10% O 2 (unless indicated otherwise) PM 52 Reference AEL limit (mg/nm 3 ) 180 until 31 March 2015 B1 (U43) Main stack west See figure from 1 April 2015 NOx expressed as NO from 1 April 2015 SO from 1 April 2015 PM until 31 March 2015 B2 (U243) Main stack east See figure from 1 April 2015 NOx expressed as NO from 1 April 2015 SO from 1 April 2015 GT1 GT2 Rectisol East (off gas to main stack) PM 6 [at 15% O 2 ] NOx expressed as NO 2 42 [at 15% O 2 ] SO 2 3 [at 15% O 2 ] PM 4 [at 15% O 2 ] NOx expressed as NO 2 62 [at 15% O 2 ] SO 2 < 3 [at 15% O 2 ] H 2 S (measured as S) See figure t/h max daily average during upset conditions from 1 April mg/nm 3 normal operating conditions from 1 April 2015 Total VOCs Measurements are scheduled 300 4

5 Point source code Pollutant Daily average concentration measured (mg/nm 3 ) at 10% O 2 (unless indicated otherwise) Reference AEL limit (mg/nm 3 ) SO 2 for end September H 2 S (measured as S) See figure t/h during upset conditions from 1 April 2015 Rectisol west (off gas to main stack) 8400 mg/nm 3 normal operating conditions Total VOCs Measurements are scheduled 300 for end September 2015 SO PM 33.7 mg/nm 3 under normal conditions of 273 K and kpa 100 CM1 (west kiln stack) SO mg/nm 3 under normal conditions of 273 K and kpa 500 NOx expressed as NO mg/nm 3 under normal conditions of 273 K and kpa 2000 CM2 (west arc furnace stack) PM Operational challenges were 100 SO 2 experienced at time when measurements were scheduled. 500 NOx expressed as NO 2 Measurements are scheduled for Quarter 2 FY PM 72.5 mg/nm 3 under normal conditions of 273 K and kpa 100 CM3 (east kiln A stack) SO mg/nm 3 under normal conditions of 273 K and kpa 500 NOx expressed as NO mg/nm 3 under normal conditions of 273 K and kpa 2000 CM4 (east arc furnace stack) PM Operational challenges were 100 SO 2 experienced at time when measurements were scheduled. 500 NOx expressed as NO 2 Measurements are scheduled for Quarter 2 FY

6 Point source code Pollutant Daily average concentration measured (mg/nm 3 ) at 10% O 2 (unless indicated otherwise) Reference AEL limit (mg/nm 3 ) PM 80.8 mg/nm 3 under normal conditions of 273 K and kpa 100 CM5 (east kiln B stack) SO mg/nm 3 under normal conditions of 273 K and kpa 500 NOx expressed as NO mg/nm 3 under normal conditions of 273 K and kpa 2000 * SO NOx expressed as NO R2(14HT201)* R3(214HT101)* R4(214HT201)* R5(228HT101)* R6 (30HT101)* R7 (30HT102)* R8 (30HT103)* SO NOx expressed as NO SO NOx expressed as NO SO NOx expressed as NO SO 2 Scheduled for end September HT was off-line during NOx expressed as NO 2 sampling campaign 1700 SO NOx expressed as NO SO NOx expressed as NO SO NOx expressed as NO R9 (30HT104)* SO * Internal project underway to assess the feasibility to install sampling ports on Refining heaters in order to undertake isokinetic sampling for PM. The PM emission results from the heaters should be similar to the PM emissions measured at another heater in a different plant since most refining heaters use the same fuel gas and similar design (Octene Train 3 HT101) with PM results of 21,6 mg/nm 3 6

7 Point source code Pollutant Daily average concentration measured (mg/nm 3 ) at 10% O 2 (unless indicated otherwise) Reference AEL limit (mg/nm 3 ) NOx expressed as NO * SO NOx expressed as NO R11 (230HT101)* R12 (230HT102)* R13 (230HT103)* R14 (230HT104)* R15 (230HT105)* R17 (34HT101)* R18 (234HT101)* R19 (35HT101)* R20 (35HT102)* R22 (235HT101)* SO NOx expressed as NO SO NOx expressed as NO SO NOx expressed as NO SO NOx expressed as NO SO NOx expressed as NO SO NOx expressed as NO SO NOx expressed as NO SO NOx expressed as NO SO NOx expressed as NO SO NOx expressed as NO R23 (235HT102)* SO * Internal project underway to assess the feasibility to install sampling ports on Refining heaters in order to undertake isokinetic sampling for PM. The PM emission results from the heaters should be similar to the PM emissions measured at another heater in a different plant since most refining heaters use the same fuel gas and similar design (Octene Train 3 HT101) with PM results of 21,6 mg/nm 3 7

8 Point source code Pollutant Daily average concentration measured (mg/nm 3 ) at 10% O 2 (unless indicated otherwise) Reference AEL limit (mg/nm 3 ) NOx expressed as NO * SO NOx expressed as NO R25 (35HT104)* R26 (35HT105)* R27 (29HT101)* R28 (29HT102)* R29 (229HT101)* R30 (33HT101)* R31 (33HT102)* R32 (33HT105)* R33 (233HT101)* R34 (233HT102)* SO NOx expressed as NO SO NOx expressed as NO SO NOx expressed as NO SO NOx expressed as NO SO 2 Outstanding sampling due to no 1700 NOx expressed as NO 2 sampling port 1700 SO NOx expressed as NO SO NOx expressed as NO SO NOx expressed as NO SO NOx expressed as NO SO NOx expressed as NO R35 (233HT105)* SO * Internal project underway to assess the feasibility to install sampling ports on Refining heaters in order to undertake isokinetic sampling for PM. The PM emission results from the heaters should be similar to the PM emissions measured at another heater in a different plant since most refining heaters use the same fuel gas and similar design (Octene Train 3 HT101) with PM results of 21,6 mg/nm 3 8

9 Point source code Pollutant Daily average concentration measured (mg/nm 3 ) at 10% O 2 (unless indicated otherwise) Reference AEL limit (mg/nm 3 ) NOx expressed as NO * SO NOx expressed as NO R37 (32HT201)* R38 (32HT102)* R39 (232HT101)* R40 (232HT201)* R41 (232HT102)* SCC 1 stack WSA 1 (518ME-1003) SO NOx expressed as NO SO NOx expressed as NO SO NOx expressed as NO SO NOx expressed as NO SO NOx expressed as NO PM Due to operational and safety 330 challenges, representative SO 2 sampling could not be done Sampling is scheduled for NOx expressed as NO 2 September SO SO NOx expressed as NO P1 (Unit 16/216) TVOCs Sampling port not yet installed. 250 Project in place to install P2 (Unit 16/216) TVOCs sampling port for FY WA1 (52WK-2102) PM CO SO * Internal project underway to assess the feasibility to install sampling ports on Refining heaters in order to undertake isokinetic sampling for PM. The PM emission results from the heaters should be similar to the PM emissions measured at another heater in a different plant since most refining heaters use the same fuel gas and similar design (Octene Train 3 HT101) with PM results of 21,6 mg/nm 3 9

10 Point source code Pollutant Daily average concentration measured (mg/nm 3 ) at 10% O 2 (unless indicated otherwise) Reference AEL limit (mg/nm 3 ) NOx expressed as NO HCl < HF Pb+As+Sb+Cr+Co+Cu +Mn+Ni+V Hg < Cd + Tl < TOC As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March 2018 NH Dioxins + Furans PM CO As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March 2018 SO NOx expressed as NO HCl < WA2 (52WK-2202) HF Pb+As+Sb+Cr+Co+Cu +Mn+Ni+V Hg < Cd + Tl < TOC As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March

11 Point source code Pollutant Daily average concentration measured (mg/nm 3 ) at 10% O 2 (unless indicated otherwise) Reference AEL limit (mg/nm 3 ) NH Dioxins + Furans As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March 2018 PM CO As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March 2018 SO 2 < WA3 (252WK-2102) NOx expressed as NO As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March HCl < HF Pb+As+Sb+Cr+Co+Cu +Mn+Ni+V Hg < WA3 (252WK-2102) Cd + Tl < TOC As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March 2018 NH Dioxins + Furans Outstanding sampling 0.1 PM As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 11

12 Point source code Pollutant Daily average concentration measured (mg/nm 3 ) at 10% O 2 (unless indicated otherwise) Reference AEL limit (mg/nm 3 ) 31 March 2018 CO WA4 (252WK-2202) As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March 2018 SO 2 < NOx expressed as NO HCl <5 12 HF Pb+As+Sb+Cr+Co+Cu +Mn+Ni+V Hg < Cd + Tl < TOC WA4 (252WK-2202) As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March 2018 NH Dioxins + Furans PM SW1 (353IN101) As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March 2017 CO 109 As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March SO NOx expressed as NO HCl <

13 Point source code Pollutant Daily average concentration measured (mg/nm 3 ) at 10% O 2 (unless indicated otherwise) Reference AEL limit (mg/nm 3 ) HF <8 1 Pb+As+Sb+Cr+Co+Cu +Mn+Ni+V As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March Hg < Cd + Tl < As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March 2017 TOC As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March 2017 NH Dioxins + Furans As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March 2017 HOW1(52CI-101) PM CO As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March 2018 SO NOx expressed as NO As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March 2018 HCl As per investigation requirement 13

14 Point source code Pollutant Daily average concentration measured (mg/nm 3 ) at 10% O 2 (unless indicated otherwise) Reference AEL limit (mg/nm 3 ) HOW1 (52CI-101) in AEL: determine actual emissions from 1 April 2015 to 31 March 2018 HF 2.01 As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March Pb+As+Sb+Cr+Co+Cu +Mn+Ni+V Hg < Cd + Tl < TOC As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March 2018 NH Dioxins + Furans PM HOW2 (252CI-101) CO < SO As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March NOx expressed as NO As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March 2018 HCl <9 10 HF HOW2 Pb+As+Sb+Cr+Co+Cu +Mn+Ni+V

15 Point source code Pollutant Daily average concentration measured (mg/nm 3 ) at 10% O 2 (unless indicated otherwise) Reference AEL limit (mg/nm 3 ) (252CI-101) Hg < Cd + Tl < TOC As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March 2018 NH Dioxins + Furans As per investigation requirement in AEL: determine actual emissions from 1 April 2015 to 31 March 2018 PM 300 CO 3000 SO 2 70 NOx expressed as NO HCl 12 WRF HF 20 Pb+As+Sb+Cr+Co+Cu Sampling done in August 2015 awaiting results 1 +Mn+Ni+V Hg 0.5 Cd + Tl 0.12 TOC 10 NH 3 30 Dioxins + Furans 0.1 FFP1, 2, 3, 4 and 5. Note this is for the main stack (086 ME 514) with four mixing storage tanks are connected to the main stack VOCs mg/nm 3 under normal conditions of 273 K and kpa

16 Point source code Pollutant Daily average concentration measured (mg/nm 3 ) at 10% O 2 (unless indicated otherwise) Reference AEL limit (mg/nm 3 ) CT1,2,3,4,5,6,7,8,9, 10,11,12,13 and 14 VOCs CT1 (039TK101): mg/nm 3 CT2 (039TK102): mg/nm 3 CT3,4,5 (039 TK 103, 104, common vent): 1322 mg/nm 3 and will be addressed in the Tar Value Chain Phase 2 project as included in air quality improvement roadmap. 250 mg/nm 3 under normal conditions of 273 K and kpa CT 6, 7, 8, 9 and CT 10,11,12,13 and 14: emission measurements could not be done since tanks were empty. Storage tanks (15TK101, 215TK101) VOCs These tanks are included in LDAR. VOC measurements are scheduled for Quarter 2 FY16 Tanks are also monitored as per Fugitive Emissions Monitoring Plan and is part of the LDAR program Progress on installation of floating devices Extensive work done on floating discs as an alternative technology to be used in tanks at high altitude to reduce emissions concluded that it compares reasonably well with internal floating roofs performance. Following conclusion of pilot investigations, the project will now continue with the necessary requirements for the installation of the floating devices on specific tanks according to the tank shut down schedule. 16

17 4. EMISSION TRENDS Figure 1: PM emissions for western stack Figure 2: PM emissions from eastern stack As per communication reference 1501AI/1801 dated 12 January 2015: The daily average particulate matter (PM) emissions from the east stack (point source code B2) exceeded the maximum emission rate on the 11 th of January This was due to operational upset on deashing of the hoppers at boiler 4 and boiler 5 at steam plant east. 17

18 Figure 3: H 2 S emissions from Sulphur Recovery 1 July 2014 to 31 March 2015 Figure 4: H 2 S emissions from Sulphur Recovery from 1 April 2015 to 30 June

19 5. COMPLIANCE AUDIT REPORTS Both 2 nd party and 3 rd party audits were done in this financial year with no findings. The report concluded that a sound framework and tools are in place to detect potential deviations and manage them accordingly. 6. MAJOR UPGRADE PROJECTS Table 3.3.1: Major upgrades projects for Synfuels Project description Planned completion date VOC abatement project in tar value chain April 2017 (installation of Regenerative Thermal Oxidisers) Status In construction phase 7. GREENHOUSE GAS EMISSIONS Table 3.4.1: GHG emissions GHG emissions from SSO: Synfuels Plant Total Direct CO 2 equivalent emissions (Kilo ton) The CO 2 equivalent is based on the Global Warming Potential as per requirements of IPCC 2 nd assessment report. 8. PUBLIC CONSULTATION FORUM Public consultation sessions were held on 21 May 2015 in Secunda and in embalenhle. Attached is the attendance lists as well as the presentation that was communicated on that day (Annexure 1). The full documented minutes and responses on the comments and questions received will be submitted in October ACTIONS TAKEN ON COMPLAINTS RECEIVED Date complaint received Type of complaint Internal/External complaint 18 August 2015 Dust Internal Description of complaint A lot of dust got vented into the air from a vent at unit 204. Actions taken Contacted operations and maintenance managers of unit 204 to confirm the root cause of the incident that resulted in the complaint. It was confirmed that there was an incident at the A kiln at unit 204 that damaged the filter in the kiln stack. This resulted in higher particulate matter emissions. The kiln was taken out of operation to replace the filter and this action was completed before 21 August

20 Date complaint received Type of complaint Internal/External complaint 4 February 2015 Smell Internal Description of complaint The complainant mentioned that there was a bad smell for the last 2 weeks where he stays in town (Theunissen street), but especially the previous evening. He asked if the situation can be investigated to determine where the smell originates from. Actions taken The wind direction was confirmed to be from the water recovery area. Operations at water recovery investigated the complaint. The senior manager inspected the process dams at water recovery to confirm the presence of a pungent smell. She took two other people who do not work at water recovery around the primary and secondary process dams and none of them could smell any strong biological/sludge smell. It was also confirmed that all the dams where aerators are located have aerators running and the process dams are operating stable. 10. HIGHVELD PRIORITY AIR QUALITY MANAGEMENT PLAN AND OFFSET PROGRAM Please find reporting document on Highveld Priority Air Quality Management Plan in Annexure 2. The draft offsetting proposal to reduce PM and SO 2 emissions was submitted on 30 June 2015 and presented on 6 July

21 Annexure 1 Public consultation forum attendance list and presentation 21

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29 Secunda consultation forum on air quality 21 May 2015

30 The importance of stakeholder engagement I d like to get a divorce On what grounds? I have about 50 hectares... Case? I don t have a case but I brought my backpack! Not exactly, more like a double carport in the back! No, you don t understand, what is your case? You misunderstand, I mean to ask if you have a grudge? better together... we deliver 2

31 The importance of stakeholder engagement Sir! I ll put it bluntly. Why the h*** do you want a divorce? Me? I don t want a divorce. It s my wife who wants one. She say s we can t understand each other! better together... we deliver 3

32 The importance of stakeholder engagement One of our Sasol values is stakeholder focus which aims to: Foster robust engagements Build relationships with our host communities Sasol plans to run the Secunda facility to 2050 and beyond And by so doing we take your concerns very seriously in these meetings and we hope you will give us your contributions so that we work together to improve our environment better together... we deliver 4

33 Why are we here today? Purpose Purpose: To fulfill the licensing requirements of the Atmospheric Emission License (AEL) issued in March What are our licensing requirements on air quality? The (AEL) requires Sasol to hold public meetings twice a year to share with the community: The activities of the Sasol Secunda hub in respect of air quality Impact of Sasol activities to ambient air quality How Sasol manages air quality Sasol s commitments to air quality The public meetings have been planned for Secunda and embalenhle today 21 May 2015 and the next sessions are planned to take place in October better together... we deliver 5

34 We are not here to discuss Ikusasa Business opportunities CSR/CSI projects Job opportunities Skills Development and learnerships Climate change For more information on the above topics please contact Doctor Twala on (017) or better together... we deliver 6

35 What we will talk about in today s forum 1. Sasol Overview 2. Introduction to air quality concepts 3. How Sasol manages its impact on air quality 4. Our performance 5. Way forward Sasol forecourt, Secunda Lake Charles, Louisiana better together... we deliver 7

36 Sasol Overview A new era for Sasol A new era for Sasol

37 Activities of the Secunda hub from an air quality perspective A new era for Sasol 9

38 Introduction to air quality concepts A new era for Sasol A new era for Sasol

39 Air quality is a function of multiple emission sources Atmospheric processes Minimum emission standards (MES) mg/m 3 Other sources Monitoring station Combined impact National ambient air quality standards (NAAQS) μg/m 3

40 Sasol Secunda Operations local ambient air quality monitoring stations Secunda embalenhle Club DEA Langverwacht Bosjesspruit A new era for Sasol 12

41 Ambient air quality monitoring station A new era for Sasol 13

42 How Sasol manages its impact on air quality A new era for Sasol A new era for Sasol

43 Sasol s approach to air quality management We are committed to sustainably limiting the environmental impacts of our operations, including our impact on air quality We continuously improve the impact of our operations in a sustainable manner, and in the interest of all stakeholders, including the community We measure and monitor what we emit from our plants at our ambient monitoring stations We use information from the monitoring stations to make informed decisions on our air quality improvement priorities We have implemented projects to improve the impact of our operations on ambient air better together... we deliver 15

44 Projects delivering environmental improvements Year Rand Million Project with environmental related benefit Environmental improvement in subsequent year Rehabilitation of Secunda waste disposal site Improved air and water quality Hydrogen sulphide reduction in Secunda Reduction in H 2 S emissions (odour) Wet sulphuric Acid plant in Secunda Reduction in H 2 S emissions (odour) Energy efficiency projects in Secunda Reduction in GHG emissions MW combined cycle gas turbines in Secunda Reduction in GHG emissions and improved air quality Upgrade boiler 9 in Secunda Reduction in particulate matter emission Regenerative thermal oxidisers in Secunda Reduction in VOC emissions such as benzene A new era for Sasol 16

45 Our commitment to compliance with air quality laws Beyond our approach to sustainable air quality improvements, Sasol is committed to comply with the Air Quality Act and all applicable regulations governing air emissions. We have been granted an Atmospheric Emission Licence (AEL) in March The AEL reflects emission limits or emission controls applicable to various of our production processes. The AEL was varied on 31 March 2015 to align it with the Minimum Emissions Standards (MES) which govern emission concentrations of various pollutants, for example sulphur dioxide, particulate matter and hydrogen sulphide. Sasol applied for, and has been granted postponements from meeting some of these standards better together... we deliver 17

46 Our performance A new era for Sasol A new era for Sasol

47 Air quality is a function of multiple emission sources Atmospheric processes Minimum emission standards (MES) mg/m 3 Other sources Monitoring station Combined impact National ambient air quality standards (NAAQS) μg/m 3 A new era for Sasol 19

48 Sulphur dioxide measured at ambient air monitoring stations A new era for Sasol 20

49 Nitrogen dioxide measured at ambient air monitoring stations A new era for Sasol 21

50 PM10 measured at ambient air monitoring stations A new era for Sasol 22

51 PM2.5 measured at ambient air monitoring stations A new era for Sasol 23

52 Air quality is a function of multiple emission sources Atmospheric processes Minimum emission standards (MES) mg/m 3 Other sources Monitoring station Combined impact National ambient air quality standards (NAAQS) μg/m 3 A new era for Sasol 24

53 Our performance on PM emissions from main stack A new era for Sasol 25

54 Our performance on PM emissions from main stack A new era for Sasol 26

55 Hydrogen sulphide measured at ambient air monitoring stations A new era for Sasol 27

56 Where to from here A new era for Sasol A new era for Sasol

57 Where to from here There will be another session in October 2015 Further engagements on off-set projects and plans will also be held Comments on the session and future topics are welcome A new era for Sasol 29

58 Contact details We are committed to respond to environmental complaints we receive Complaints are investigated and feedback is given on the outcome of the investigation Contact number for environmental complaints: A new era for Sasol 30

59 Annexure 2 Highveld Priority Air Quality Management Plan 22

60 HIGHVELD PRIORITY AREA IMPLEMENTATION UPDATE - Aug 2015 NAME OF COMPANY: Secunda Synfuels Operations NAME OF RESPONSIBLE PERSON: Estelle Marais CONTACT DETAILS Tel: Cell: / Estelle.marais@sasol.com Fax: NAME OF RELEVANT LICENSING AUTHORITY Gert Sibande INTERVENTIONS TO ADDRESS AIR QUALITY WITHIN HIGHVELD PRIORITY AREA PROJECT DESCRIPTION (FROM 2012 TO 2014) PROJECTS IMPLEMENTED PROJECTS OUTSTANDING COMMENCEMENT DATE PROGRESS TO DATE EMISSION STATUS Reductions Achieved (e.g.pm10 & 2.5, SO2, NOx, CO, O3, C6H6, Pb) Emission status before interventions Emission status after interventions CHALLENGES INTERVENTIONS TO ADDRESS CHALLENGES LDAR program to reduce low level VOC s and the risk of fires and explosions Ongoing measurements throughout the year In process of quantifying emission reduction. Repairing some leaks require shutdown Repair of these leaks included in shutdown schedule Short term tar unit debottlenecking 1450 ton BTEX vapour reduction Wet Sulphuric Acid plant Operability improved from 75% availability without external influences to 91% without external influences 2,51 tons/hour of H 2 S removed for period 3,03 tons/hour of H 2 S removed for period Various activities to improve reliability of the plant

61 Upgrade of Boiler 9 on Eastern factory Installation of vapour recovery unit at fuel loading facility Installation of Evapostop discs (floating discs) Beneficial operation scheduled by 1 April 2016 From 2016 Modifications need to be made before commissioning to determine successful operation 250 mg/nm3 < 170 mg/nm3 Unit still to be commissioned. Extensive work done on floating discs as an alternative technology to be used in tanks at high altitude to reduce emissions concluded that it compares reasonably well with internal floating roofs performance. Following conclusion of pilot investigations, the project will now continue with the necessary requirements for the installation of the floating devices on specific tanks according to the tank shut down schedule.