JP2010507773A - 酸素燃焼におけるco2回収の方法及び装置 - Google Patents
酸素燃焼におけるco2回収の方法及び装置 Download PDFInfo
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000011084 recovery Methods 0.000 title description 6
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- 239000007789 gas Substances 0.000 claims abstract description 42
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- 238000000926 separation method Methods 0.000 claims abstract description 41
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- 239000001301 oxygen Substances 0.000 claims abstract description 38
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- 230000003134 recirculating effect Effects 0.000 claims 5
- 238000002156 mixing Methods 0.000 claims 2
- 239000002156 adsorbate Substances 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
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- -1 but as a result Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
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- 238000009833 condensation Methods 0.000 description 1
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- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
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- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
Description
本発明の別の目的は、酸素燃焼におけるCO2回収の効率的なシステムを提供することである。
Claims (29)
- 酸素の供給源と、酸素を用いて炭素質燃料を燃焼させ、それにより主な成分としてCO2、水及び過剰酸素を含む燃焼ガスを生成するための燃焼チャンバとを有する、炭素質燃料を燃焼させる発電所から出る燃焼ガスからCO2を回収する方法において、該方法が、
(a)前記燃焼ガスの少なくとも第1の部分を第1の燃焼ガス・チャネルに送るステップと、
(b)約6MPa(60バール)を超える圧力まで圧縮された燃焼ガス流れを作るために前記燃焼ガスの第1の部分を圧縮するステップと、
(c)CO2の第1の部分を凝縮させて、第1の液体CO2流れ、並びに、酸素及び過剰のCO2を含む高圧排気ガス流れを作ることにより、前記CO2の第1の部分を回収するために、前記圧縮された燃焼ガス流れを1次CO2分離ユニット内で冷却するステップと、
(d)前記発電所から前記第1の液体CO2流れを排出するステップと、
(e)CO2の第2の部分を吸着物質に吸着させることにより前記CO2の第2の部分を回収するために、前記高圧排気ガス流れを2次CO2分離ユニットへ送るステップと
を含む、CO2を回収する方法。 - ステップ(c)の前に、前記燃焼ガスの第1の部分から水を取り除く別のステップを更に含む、請求項1に記載されたCO2を回収する方法。
- 前記水を取り除くステップが、前記燃焼ガスの第1の部分を、前記燃焼ガス流れの第1の部分の水のうちの重量%で約99%を超える水を凝縮するのに十分な圧力及び温度まで圧縮及び/又は冷却することによって実施される、請求項2に記載されたCO2を回収する方法。
- 前記CO2の第1の部分が、前記圧縮された燃焼ガス流れのCO2のうちの重量%で少なくとも60%を含む、請求項1に記載されたCO2を回収する方法。
- 前記CO2の第1の部分が、前記圧縮された燃焼ガス流れのCO2のうちの重量%で少なくとも約80%を含む、請求項4に記載されたCO2を回収する方法。
- 前記CO2の第2の部分が、前記過剰のCO2のうちの重量%で少なくとも約60%を含む、請求項1に記載されたCO2を回収する方法。
- 前記CO2の第2の部分が、前記過剰のCO2のうちの重量%で少なくとも約90%を含む、請求項6に記載されたCO2を回収する方法。
- ステップ(e)において吸着されたCO2を熱によって前記吸着物質から放出させ、第2の液体CO2流れを作るために前記放出されたCO2を再冷却して、前記第2の液体CO2流れの少なくとも一部分を前記第1の液体CO2流れと混合させるステップ(f)を更に含む、請求項1に記載されたCO2を回収する方法。
- 前記第1の液体CO2流れを貯蔵場所又は別の用途へ移動させるために、前記第1の液体CO2流れを約10MPa(100バール)〜約16MPa(160バール)の圧力にポンプで加圧するステップ(g)を更に含む、請求項8に記載されたCO2を回収する方法。
- ステップ(c)において、前記圧縮された燃焼ガス流れを、少なくとも10℃の温度まで冷却する、請求項1に記載されたCO2を回収する方法。
- ステップ(c)において、前記圧縮された燃焼ガス流れを少なくとも16℃の温度まで冷却する、請求項10に記載されたCO2を回収する方法。
- 前記冷却ステップを、冷却塔で再冷却される再循環冷却剤を使用して実施する、請求項10に記載されたCO2を回収する方法。
- 前記冷却ステップを、冷却塔で再冷却される再循環冷却剤を使用して実施する、請求項11に記載されたCO2を回収する方法。
- 前記1次CO2分離ユニットが精留塔を有する、請求項1に記載されたCO2を回収する方法。
- 前記第1の液体CO2流れを貯蔵場所又は別の用途へ移動させるために、前記第1の液体CO2流れを約10MPa(100バール)〜約16MPa(160バール)の圧力にポンプで加圧するステップ(f)を更に含む、請求項1に記載されたCO2を回収する方法。
- 電力及び膨張した排気ガス流れを発生させるためのタービンを介して前記排気ガス流れの少なくとも一部分を膨張させるステップ(f)を更に含む、請求項1に記載されたCO2を回収する方法。
- 前記酸素の供給源が空気分離ユニットであり、前記膨張した排気ガス流れの少なくとも一部分を前記空気分離ユニットへ送るステップ(g)を更に含む、請求項16に記載されたCO2を回収する方法。
- 前記燃焼ガスの第2の部分を第2の燃焼ガス・チャネルを通して前記燃焼チャンバに再循環させるステップ(f)を更に含む、請求項1に記載されたCO2を回収する方法。
- 酸素の供給源と、酸素を用いて炭素質燃料を燃焼させ、それにより主な成分としてCO2、水、及び過剰酸素を含む燃焼ガスを生成するための燃焼チャンバとを有する、炭素質燃料を燃焼させる発電所から出る燃焼ガスからCO2を回収する装置において、該装置が、
CO2を回収する手段へ向かうように前記燃焼ガスの少なくとも第1の部分を導くための第1の燃焼ガス・チャネルと、
約6MPa(60バール)を超える圧力まで圧縮された燃焼ガス流れを作るように前記燃焼ガスの前記第1の部分を圧縮するための、前記第1の燃焼ガス・チャネル内に配置された最終圧縮機と、
前記CO2の第1の部分を凝縮させて、第1の液体CO2流れ、並びに、酸素及び過剰のCO2を含む高圧排気ガス流れを作ることにより、1次CO2分離ユニット内で前記CO2の第1の部分を回収するために、圧縮された燃焼ガス流れを冷却する、前記第1の燃焼ガス・チャネルに連結された最終冷却手段と、
前記発電所から前記第1の液体CO2流れを排出する手段と、
CO2の第2の部分を吸着物質に吸着させることにより前記CO2の第2の部分を回収するために、前記吸着物質を含む2次CO2分離ユニットへ前記高圧排気ガス流れを送る通路と
を有する、CO2を回収する装置。 - 前記燃焼ガスの第1の部分から水を取り除くための、前記第1の燃焼ガス・チャネル内に配置される乾燥手段を更に含む、請求項19に記載されたCO2を回収する装置。
- 前記乾燥手段が、
(i)第1次圧縮機システム及び
(ii)前記燃焼ガスの第1の部分の水のうちの重量%で約99%を超える水を凝縮するのに十分な圧力及び温度まで前記燃焼ガス流れの第1の部分を圧縮及び/又は冷却するための第1次冷却手段
のうちの少なくとも1つを有する、請求項20に記載されたCO2を回収する装置。 - 前記最終冷却手段が熱交換器を有する、請求項19に記載されたCO2を回収する装置。
- 前記最終冷却手段が、前記熱交換器及び冷却塔を通して冷却剤を再循環させるための手段を有する、請求項22に記載されたCO2を回収する装置。
- 前記1次CO2分離ユニットが精留塔を有する、請求項19に記載されたCO2を回収する装置。
- 前記2次CO2分離ユニットが、吸着されたCO2を前記吸着物質から放出するために前記吸着物質を加熱する手段と、第2の液体CO2流れを作り出すために前記放出されたCO2を再冷却する手段と、前記第2の液体CO2流れの少なくとも一部分を前記第1の液体CO2流れと混合させる手段とを有する、請求項19に記載されたCO2を回収する装置。
- 前記第1の液体CO2流れを貯蔵場所又は別の用途へ移動させるために、前記第1の液体CO2流れを約10MPa(100バール)〜約16MPa(160バール)の圧力にポンプで加圧する手段を更に有する、請求項19に記載されたCO2を回収する装置。
- 電力及び膨張した排気ガス流れを発生させるために前記排気ガス流れの少なくとも一部分を膨張させるためのタービンを更に有する、請求項19に記載されたCO2を回収する装置。
- 前記酸素の供給源が空気分離ユニットであり、前記膨張した排気ガス流れの少なくとも一部分を前記空気分離ユニットへ送る手段を更に有する、請求項27に記載されたCO2を回収する装置。
- 前記燃焼ガスの第2の部分を前記燃焼チャンバまで再循環させるための第2の燃焼ガス・チャネルを更に有する、請求項19に記載されたCO2を回収する装置。
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US11/586,690 US7927568B2 (en) | 2006-10-26 | 2006-10-26 | Method of and apparatus for CO2 capture in oxy-combustion |
PCT/IB2007/054298 WO2008050289A2 (en) | 2006-10-26 | 2007-10-23 | Method of and apparatus for co2 capture in oxy-combustion |
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EP (1) | EP2084371A2 (ja) |
JP (1) | JP2010507773A (ja) |
KR (1) | KR20090075732A (ja) |
CN (1) | CN101553645A (ja) |
AU (1) | AU2007310516B2 (ja) |
CA (1) | CA2667522A1 (ja) |
RU (1) | RU2394992C1 (ja) |
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CA2667522A1 (en) | 2008-05-02 |
EP2084371A2 (en) | 2009-08-05 |
WO2008050289A3 (en) | 2008-06-19 |
KR20090075732A (ko) | 2009-07-08 |
WO2008050289A2 (en) | 2008-05-02 |
AU2007310516A1 (en) | 2008-05-02 |
AU2007310516B2 (en) | 2011-02-17 |
US7927568B2 (en) | 2011-04-19 |
CN101553645A (zh) | 2009-10-07 |
RU2394992C1 (ru) | 2010-07-20 |
US20080184880A1 (en) | 2008-08-07 |
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