JP4932840B2 - 排ガス気流から三酸化硫黄を除去する方法 - Google Patents
排ガス気流から三酸化硫黄を除去する方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 36
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 title 2
- 150000001875 compounds Chemical class 0.000 claims description 44
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 42
- 241001625808 Trona Species 0.000 claims description 30
- 238000006243 chemical reaction Methods 0.000 claims description 30
- 239000011734 sodium Substances 0.000 claims description 22
- 239000002245 particle Substances 0.000 claims description 21
- 239000007795 chemical reaction product Substances 0.000 claims description 17
- 229910000031 sodium sesquicarbonate Inorganic materials 0.000 claims description 11
- 235000018341 sodium sesquicarbonate Nutrition 0.000 claims description 11
- WCTAGTRAWPDFQO-UHFFFAOYSA-K trisodium;hydrogen carbonate;carbonate Chemical compound [Na+].[Na+].[Na+].OC([O-])=O.[O-]C([O-])=O WCTAGTRAWPDFQO-UHFFFAOYSA-K 0.000 claims description 11
- 239000010881 fly ash Substances 0.000 claims description 8
- 239000002956 ash Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 6
- 235000017550 sodium carbonate Nutrition 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 4
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000007790 solid phase Substances 0.000 claims 2
- 239000011236 particulate material Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 84
- 239000002253 acid Substances 0.000 description 16
- 239000012717 electrostatic precipitator Substances 0.000 description 12
- 238000002347 injection Methods 0.000 description 11
- 239000007924 injection Substances 0.000 description 11
- 239000002250 absorbent Substances 0.000 description 10
- 230000002745 absorbent Effects 0.000 description 10
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 150000007513 acids Chemical class 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000003595 mist Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 235000017557 sodium bicarbonate Nutrition 0.000 description 4
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 description 3
- 229910000342 sodium bisulfate Inorganic materials 0.000 description 3
- 239000002341 toxic gas Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000010587 phase diagram Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- HUWSZNZAROKDRZ-RRLWZMAJSA-N (3r,4r)-3-azaniumyl-5-[[(2s,3r)-1-[(2s)-2,3-dicarboxypyrrolidin-1-yl]-3-methyl-1-oxopentan-2-yl]amino]-5-oxo-4-sulfanylpentane-1-sulfonate Chemical compound OS(=O)(=O)CC[C@@H](N)[C@@H](S)C(=O)N[C@@H]([C@H](C)CC)C(=O)N1CCC(C(O)=O)[C@H]1C(O)=O HUWSZNZAROKDRZ-RRLWZMAJSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 150000003388 sodium compounds Chemical class 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/508—Sulfur oxides by treating the gases with solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/505—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound in a spray drying process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S423/00—Chemistry of inorganic compounds
- Y10S423/05—Automatic, including computer, control
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S423/00—Chemistry of inorganic compounds
- Y10S423/08—Corrosion or deposition inhibiting
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Description
2[Na2CO3.NaHCO3.2H2O] → 3Na2CO3+5H2O+CO2
重炭酸ナトリウムは高温で同様の反応を経る。
2NaHCO3 → 3Na2CO3+H2O+CO2
Na2CO3+SO3 → Na2SO4+CO2
NaHCO3+SO3 → NaHSO4+SO3
Na2CO3+2SO3+H2O → 2NaHSO4+CO2
2NaHSO4 → Na2S2O7
T-200(登録商標)トロナを367°Fの排ガス温度で排ガス中に注入した。プラント内のESPの多孔板は、約2週間に亘るSO3除去システムの操作後には著しい固体堆積を呈した。
365°F未満の排ガス温度でトロナを注入するという変更を加えて、実施例1の操作を繰り返した。実施例1の多孔板と比較して、プラント内のESPの多孔板は、2週間に亘るSO3除去システムの操作後にも著しく少ない固体堆積を呈した。
約500°Fの排ガス温度でトロナを注入するという変更を加えて、実施例1の操作を繰り返した。プラント内のESPの多孔板には、T-200(登録商標)トロナを使用する2週間のSO3除去システムの操作後にも固体堆積が比較的に少なかった。
Claims (16)
- SO3及び飛散灰を含む排ガス流からSO3を除去する間の目詰まりを低減するための方法であって、
・炭酸ナトリウム、重炭酸ナトリウム、セスキ炭酸ナトリウム、及びこれらの混合物からなる群より選択される、40ミクロン未満の平均粒径を有する反応化合物を提供する工程;
・反応化合物を排ガス流に注入する工程であって、排ガスの温度が287.8℃乃至454.4℃である工程;及び
・反応化合物と排ガスとを接触状態に維持して、排ガス流中のSO3の濃度を低減させ、かつ排ガス流で付着する粘着性の灰残渣を形成させないため、飛散灰と組み合わされる液体NaHSO4反応生成物の形成を実質的に防ぐ工程であって、ここで反応化合物とSO3との反応生成物がNa2SO4、Na2S2O7、及びこれらの混合物からなる群より選択される工程;
を含む方法。 - 反応化合物が注入される位置の上流に、NOx除去システムを提供する工程を更に含む、請求項1の方法。
- 排ガス流が、反応化合物が注入される位置の上流に少なくとも3ppmのSO3を含む、請求項1の方法。
- 排ガス流が、反応化合物が注入される位置の上流に10ppm乃至200ppmのSO3を含む、請求項3の方法。
- 反応化合物が、セスキ炭酸ナトリウムである、請求項1の方法。
- 反応化合物の平均粒径が、10ミクロン乃至40ミクロンである、請求項5の方法。
- 反応化合物の平均粒径が、24ミクロン乃至28ミクロンである、請求項6の方法。
- 排ガスの温度が、398.9℃未満である、請求項1の方法。
- 排ガスの温度が、287.8℃乃至398.9℃である、請求項1の方法。
- 反応化合物を、SO3の流速に対して、硫黄に対するナトリウムの正規化化学量論比が1.0乃至1.5となる流速で注入する、請求項1の方法。
- 反応化合物が、乾燥物質として注入される、請求項1の方法。
- 反応化合物を排ガス流に隣接する位置で所望の平均粒径に粉砕する工程を更に含む、請求項1の方法。
- 反応化合物とSO3との反応生成物が、Na2SO4、Na2S2O7、及びこれらの混合物からなる群より選択される、請求項1の方法。
- 排ガス流が更にSO2を含む請求項1の方法であって、反応化合物と排ガスとを、排ガス流中のSO2の濃度を低減させるために接触状態に維持する工程を更に含む方法。
- 少なくとも3ppmのSO3を含む排ガス流からSO3を除去する方法であって、
・10ミクロン乃至40ミクロンの平均粒径を有するトロナ供給源を準備する工程;
・外気を排ガス流に導入して、排ガスの温度を185.0℃未満に低下させる工程;
・トロナを乾燥粒状物質として排ガス流に注入する工程であって、排ガスの温度が135.0℃乃至185.0℃である工程;及び
・トロナと排ガスとを、排ガス流中のSO3の濃度を低減させるために接触状態に維持する工程であって、反応生成物が固相Na2SO4、固相NaHSO4、及びこれらの混合物からなる群より選択される工程;
を含む方法。 - 排ガス流が、トロナが注入される位置の上流に10ppm乃至200ppmのSO3を含む、請求項15の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/229,011 | 2005-09-15 | ||
US11/229,011 US7481987B2 (en) | 2005-09-15 | 2005-09-15 | Method of removing sulfur trioxide from a flue gas stream |
PCT/EP2006/066358 WO2007031551A1 (en) | 2005-09-15 | 2006-09-14 | Method of removing sulfur trioxide from a flue gas stream |
Publications (2)
Publication Number | Publication Date |
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JP2009507631A JP2009507631A (ja) | 2009-02-26 |
JP4932840B2 true JP4932840B2 (ja) | 2012-05-16 |
Family
ID=37396046
Family Applications (1)
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JP2008530529A Expired - Fee Related JP4932840B2 (ja) | 2005-09-15 | 2006-09-14 | 排ガス気流から三酸化硫黄を除去する方法 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7481987B2 (ja) |
EP (1) | EP1937390A1 (ja) |
JP (1) | JP4932840B2 (ja) |
CN (1) | CN101262930B (ja) |
BR (1) | BRPI0616030B1 (ja) |
CA (2) | CA2622064C (ja) |
EA (1) | EA200800830A1 (ja) |
WO (1) | WO2007031551A1 (ja) |
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US20050201914A1 (en) * | 2004-03-12 | 2005-09-15 | American Electric Power Company, Inc. | System and method for treating a flue gas stream |
US7531154B2 (en) * | 2005-08-18 | 2009-05-12 | Solvay Chemicals | Method of removing sulfur dioxide from a flue gas stream |
US7785552B2 (en) * | 2007-03-30 | 2010-08-31 | Alstom Technology Ltd | Method and system of controlling sulfur oxides in flue gas from coal or oil-fired boilers |
WO2010132563A2 (en) * | 2009-05-15 | 2010-11-18 | Fmc Corporation | Combustion flue gas nox treatment |
US20110014106A1 (en) * | 2009-07-15 | 2011-01-20 | Fmc Corporation | COMBUSTION FLUE GAS SOx TREATMENT VIA DRY SORBENT INJECTION |
US9303870B2 (en) * | 2009-12-11 | 2016-04-05 | Power & Control Solutions, Inc. | System and method for injecting compound into utility furnace |
JPWO2011104841A1 (ja) * | 2010-02-25 | 2013-06-17 | 三菱重工業株式会社 | 排ガス処理システム及び排ガス処理方法 |
US20110308436A1 (en) * | 2010-06-21 | 2011-12-22 | Air Products And Chemicals, Inc. | System and Method for Improved Heat Recovery from Flue Gases with High SO3 Concentrations |
CN101869804B (zh) * | 2010-06-30 | 2013-01-09 | 马鞍山钢铁股份有限公司 | 半干法循环流化床烧结烟气的脱硫工艺 |
CN101862589A (zh) * | 2010-06-30 | 2010-10-20 | 马鞍山钢铁股份有限公司 | 烧结烟气的脱硫工艺 |
US9327233B2 (en) | 2010-09-14 | 2016-05-03 | Tronox Alkali Wyoming Corporation | Method of beneficiating and drying trona ore useful for flue gas desulfurization |
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CN101262930B (zh) | 2011-11-09 |
JP2009507631A (ja) | 2009-02-26 |
CA2856974A1 (en) | 2007-03-22 |
BRPI0616030B1 (pt) | 2021-03-09 |
WO2007031551A1 (en) | 2007-03-22 |
CA2622064A1 (en) | 2007-03-22 |
EP1937390A1 (en) | 2008-07-02 |
US20070081936A1 (en) | 2007-04-12 |
CA2622064C (en) | 2014-11-18 |
CN101262930A (zh) | 2008-09-10 |
EA200800830A1 (ru) | 2008-08-29 |
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US7481987B2 (en) | 2009-01-27 |
CA2856974C (en) | 2016-11-15 |
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