ADVANCES IN BROMINE-BASED MERCURY EMISSION CONTROL AT DIFFERENT FRENCH WASTE INCINERATION PLANTS

Transcription

1 ADVANCES IN BROMINE-BASED MERCURY EMISSION CONTROL AT DIFFERENT FRENCH WASTE INCINERATION PLANTS BERNHARD VOSTEEN VOSTEEN CONSULTING GMBH, COLOGNE, THIERRY GOSSET AND XAVIER CHAUCHERIE SARP INDUSTRIES-VEOLIA S.A., LIMAY (FRANCE) VGB WORKSHOP MERCURY CONTROL, MELIA HOTEL BERLIN, JUNE 8 9, 2017

2 Special thanks for cooperation with Vosteen Consulting and SARPI-VEOLIA to Dr. Alfred Grissinger, Luc Zonnenberg, Bert Horemans from

3 AGENDA! SARPI-VEOLIA s Hazardous Waste Incineration (HWI) in Europe! Developement of the BEMO-Technology with CURRENTA in ! SARPI-Application of the BEMO-Technology at Sedibex since 2016 (3 lines with wet FGD)! SARPI-Applications at diverse HWI plants with dry FGD since 2014! Experiences with the precipitation agent PRAVO!! Influence of Sulfur Outlook

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5 10 SARPI-Hazardous Waste Incineration sites in Europe Testings of the BEMO-Technology already performed at 5 sites (with 10 lines in total)

6 Preserving the environment by tackling the most difficult pollutants

7 AGENDA! SARPI-VEOLIA s Hazardous Waste Incineration (HWI) in Europe! Developement of the BEMO-Technology with CURRENTA in ! SARPI-Application of the BEMO-Technology at Sedibex since 2016 (3 lines with wet FGD)! SARPI-Applications at diverse HWI plants with dry FGD since 2014! Experiences with the precipitation agent PRAVO!! Influence of Sulfur Outlook

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9 Invention of the BEMO-Technology in 2000 by Prof. Vosteen Hg-CEM Hg-CEM Bromides (HBr, NaBr aq, CaBr 2,aq )

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12 Injection of 4 small Hg-bombs of 26 g only into the ABC, causing without bromide-addition 4 huge Hg(0)-peaks upstream of the tail-end SCR Source: Diploma thesis Andreas Pohontsch (2000)

13 Table 1: Injection of Hg bombs [g] Time Hg Time Hg 9:24 g[[amount 5 10:32 amount [g] 180 9: : : : : : : : : : : : : : : : : : : Experimental time [min] Total Hg amount [g] Source: Diploma thesis Rico Kanefke (2001)

14 !! Bromine far more effective than chlorine VOSTEEN Consulting

15 Mass ratio Br/Hg and achieved Hg removal rate in test spiking the boiler raw gas with 9,600 µg Hg total /dscm Source: Diploma thesis Rico Kanefke (2001)

16 Final Installation in 2009 (Dr. Rico Kanefke) VOSTEEN Consulting

17 Final Installation in 2009 (Dr. Rico Kanefke) VOSTEEN Consulting

18 Final Installation in 2009 (Dr. Rico Kanefke) VOSTEEN Consulting

19 Final Installation in 2009 (Dr. Rico Kanefke) VOSTEEN Consulting Numberof injection lances at the ABC varies between 1 and 3 (depending on the mixing situation)

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21 Explanation of the control principle: Bromide injection only when needed VOSTEEN Consulting

22 ? Yearly means in Yearly means in

23 Successful industrial applications of the BEMO-Technology not only within CURRENTA, but at EGLV s central WWTP Bottrop - since 2004, i.e. more than 12 years

24 Little effort during testings in 2004 Great success First external testings at the WWTP Bottrop already in December 2003 and June 2004

25 AGENDA! SARPI-VEOLIA s Hazardous Waste Incineration (HWI) in Europe! Developement of the BEMO-Technology with CURRENTA in ! SARPI-Application of the BEMO-Technology at Sedibex since 2016 (3 lines with wet FGD)! SARPI-Applications at diverse HWI plants with dry FGD since 2014! Experiences with the precipitation agent PRAVO!! Influence of Sulfur Outlook

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30 AGENDA! SARPI-VEOLIA s Hazardous Waste Incineration (HWI) in Europe! Developement of the BEMO-Technology with CURRENTA in ! SARPI-Application of the BEMO-Technology at Sedibex since 2016 (3 lines with wet FGD)! SARPI-Applications at diverse HWI plants with dry FGD since 2014! Experiences with the precipitation agent PRAVO!! Influence of Sulfur Outlook

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33 3 VOSTEEN Consulting

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35 Continuous monitoring of the mercury species Hg(0), Hg 2+ and Hg tot under harsh conditions in the raw gas upstream of the bagfilter

36 100 Mercury oxidation already upstream of dry APC improves sorptive Hg removal at normal (undonated) AC towards 100 %. Lowering the filter temperature slightly is advantageous. Hgtot abatement efficiency (%) Filter temperature: 210 C AC GL50 : 130 mg/nm3 db AC GL50 : 180 mg/nm3 db AC GL50 : 250 mg/nm3 db The AC GL50 flowrate is also important! Hg(2+) (%)

37 Almost 100% Hg oxidation achieved with mass ratio Br/Hg > 300 Bromide need e.g. only: 3 IBC à 1000 liter CaBr 2 (52 %) per year Hg conc. upstream APC (!g/nm 3 db) Hg(0) Hg(2+) HgT HgT (Stack) HgCl 2 1% Hg w. (1500!g/Nm 3 db th.) AC GL50 : 250 mg/nm 3 db ; Lime : 110 kg/h CaBr 2 52% w. 2*7,5 l/h (Br/Hg = 200) CaBr 2 52% w. 2*12,5 l/h (Br/Hg = 320) Hg conc. downstream APC (!g/nm 3 db) :30 08:40 08:50 09:00 09:10 09:20 09:30 09:40 09:50 10:00 10:10 10:20 10:30 Time (2014)

38 AGENDA! SARPI-VEOLIA s Hazardous Waste Incineration (HWI) in Europe! Developement of the BEMO-Technology with CURRENTA in ! SARPI-Application of the BEMO-Technology at Sedibex since 2016 (3 lines with wet FGD)! SARPI-Applications at diverse HWI plants with dry FGD since 2014! Experiences with the precipitation agent PRAVO!! Influence of Sulfur Outlook

39 The precipitation agents of PAN Chemie Dr. Fülöp and Vosteen Consulting are Precipan, PRAVO 100, PRAVO 200 These are inorganic liquid agents containing polysulfides and thiosulfate. The highest content of active sulfur has PRAVO 200. For mercury precipitation at wet FGD, only low injection rates are needed (e.g. < 0.5 liter /hour PRAVO at Nm 3 /h flue gas). An important initial step in such applications is the formation of highly reactive polysulfanes as H-S-S-S-S-H (PRAVO addition to the acidic milieu as performed at MSWI in Darmstadt, 3 lines since 2008); but PRAVO does also work effectively, when added to a basic/neutral scrubber stage (as performed in sewage sludge combustion at WWTP Karlsruhe Neureuth, 2 lines since 2007/8). References for successful industrial long-time applications at wet FGD : Municipal Solid Waste Incineration (Darmstadt) Hazardous Waste Incineration (Leverkusen, Fos-Sur-Mer, Sedibex) Sewage Sludge Combustion (Bottrop, Karlsruhe-Neureuth) Thermal Treatment of Contaminated Soils (Moerdijk) Bituminous Coal Combustion (Block 2 in München Unterföhring)

40 Tests in 2007/8 VOSTEEN Consulting

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44 Testings in 2008 (Dipl.-Ing. Ulrich Mielke) 2000,00 g/h Dosing curve of PRAVO 100 as measured at MSWI line to suppress mercury reemissions Regelung der PraVo Dosierung in Abh ngigkeit des Hg-Messwertes nach W scher f r eine Rauchgasmenge von ca m³/h 1800,00 g/h Menge an Pravo PRAVO 100 flow rate 1600,00 g/h 1400,00 g/h 1200,00 g/h 1000,00 g/h 800,00 g/h 600,00 g/h 400,00 g/h 200,00 g/h 0,00 g/h 0 µg/m³ 5 µg/m³ 10 µg/m³ 15 µg/m³ 20 µg/m³ 25 µg/m³ 30 µg/m³ 35 µg/m³ 40 µg/m³ 45 µg/m³ 50 µg/m³ 55 µg/m³ Messwert Hg nach W scher Hg tot in clean gas behind scrubber

45 Testing PRAVO 200 at SWM in 2014

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47 AGENDA! SARPI-VEOLIA s Hazardous Waste Incineration (HWI) in Europe! Developement of the BEMO-Technology with CURRENTA in ! SARPI-Application of the BEMO-Technology at Sedibex since 2016 (3 lines with wet FGD)! SARPI-Applications at diverse HWI plants with dry FGD since 2014! Experiences with the precipitation agent PRAVO!! Influence of Sulfur Outlook

48 SARPI regularly performs 30 d sampling-probes on PCDD/F at all its lines (obligatory in France) Punctual probes on PBCDD/Fwere performed, as well, confirming the findings of Funcke and Vehlow in the late 1990s.

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50 AGENDA! SARPI-VEOLIA s Hazardous Waste Incineration (HWI) in Europe! Developement of the BEMO-Technology with CURRENTA in ! SARPI-Application of the BEMO-Technology at Sedibex since 2016 (3 lines with wet FGD)! SARPI-Applications at diverse HWI plants with dry FGD since 2014! Experiences with the precipitation agent PRAVO!! Influence of Sulfur Outlook

51 VEOLIA activities global VOSTEEN Consulting

52 SARPI will perform tests of the BEMO-Technology at Veolia s MSWI sites starting in October 2017

53 Prof. Bernhard Vosteen and Ric Ulrich, PE, presenting the VOSTEEN- Technology ( BEMO ) at the VEOLIA Hazardous Waste Incineration site in Port Arthur, near Houston, TX (USA) - already in 2006, i.e. more than 10 years ago.