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公开(公告)号：US07416716B2
公开(公告)日：2008-08-26
申请号：US11287640
申请日：2005-11-28
CPC分类号： B01D53/60 , B01D2257/302 , B01D2257/404 , C01B32/50 , Y02A50/2344 , Y02A50/2349 , Y02C10/14 , Y02P20/152
摘要： SO2 and/or NOx are removed from gaseous CO2 at elevated pressure(s) in the presence of molecular oxygen and water and, when SO2 is to be removed, NOx, to convert SO2 to sulfuric acid and/or NOx to nitric acid. The sulfuric acid and/or nitric acid is/are then removed from the gaseous carbon dioxide to produce SO2-free, NOx-lean carbon dioxide gas. The invention has particular application in the removal of SO2 and/or NOx from carbon dioxide flue gas produced in an oxyfuel combustion process, for example, in a pulverized coal fired power station.
摘要翻译： 在分子氧和水的存在下，在升高的压力下从气态CO 2 2中除去SO 2和/或NO x x， 当要除去SO 2的情况下，将SO 2 SO 2转化为硫酸和/或NO 2 x N 2 >硝酸。 然后从气态二氧化碳中除去硫酸和/或硝酸以产生无SO 2，无水二氧化碳气体。 本发明特别适用于在氧燃料燃烧过程中产生的二氧化碳烟道气中除去SO 2和/或NO x 2，例如在粉煤燃烧 发电厂。
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公开(公告)号：US08580206B2
公开(公告)日：2013-11-12
申请号：US12129763
申请日：2008-05-30
CPC分类号： B01D53/60 , B01D2257/302 , B01D2257/404 , C01B32/50 , Y02A50/2344 , Y02A50/2349 , Y02C10/14 , Y02P20/152
摘要： SO2 and/or NOx are removed from gaseous CO2 at elevated pressure(s) in the presence of molecular oxygen and water and, when SO2 is to be removed, NOx, to convert SO2 to sulfuric acid and/or NOx to nitric acid. The sulfuric acid and/or nitric acid is/are then removed from the gaseous carbon dioxide to produce SO2-free, NOx-lean carbon dioxide gas. The invention has particular application in the removal of SO2 and/or NOx from carbon dioxide flue gas produced in an oxyfuel combustion process, for example, in a pulverized coal fired power station.
摘要翻译： 在分子氧和水的存在下，在升高的压力下从气态CO 2中除去SO 2和/或NO x，并且当要除去SO 2时，将SO 2转化为硫酸和/或NO x至硝酸。 然后从气态二氧化碳中除去硫酸和/或硝酸，以产生无SO2，不含NO x的二氧化碳气体。 本发明特别适用于在氧燃料燃烧过程中产生的二氧化碳烟道气中除去SO 2和/或NO x，例如在燃煤发电厂中。
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公开(公告)号：US20080226515A1
公开(公告)日：2008-09-18
申请号：US12129763
申请日：2008-05-30
CPC分类号： B01D53/60 , B01D2257/302 , B01D2257/404 , C01B32/50 , Y02A50/2344 , Y02A50/2349 , Y02C10/14 , Y02P20/152
摘要： SO2 and/or NOx are removed from gaseous CO2 at elevated pressure(s) in the presence of molecular oxygen and water and, when SO2 is to be removed, NOx, to convert SO2 to sulfuric acid and/or NOx to nitric acid. The sulfuric acid and/or nitric acid is/are then removed from the gaseous carbon dioxide to produce SO2-free, NOx-lean carbon dioxide gas. The invention has particular application in the removal of SO2 and/or NOx from carbon dioxide flue gas produced in an oxyfuel combustion process, for example, in a pulverized coal fired power station.
摘要翻译： 在分子氧和水的存在下，在升高的压力下从气态CO 2 2中除去SO 2和/或NO x x， 当要除去SO 2的情况下，将SO 2 SO 2转化为硫酸和/或NO 2 x N 2 >硝酸。 然后从气态二氧化碳中除去硫酸和/或硝酸以产生无SO 2，无水二氧化碳气体。 本发明特别适用于在氧燃料燃烧过程中产生的二氧化碳烟道气中除去SO 2和/或NO x 2，例如在粉煤燃烧 发电厂。
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公开(公告)号：US06544318B2
公开(公告)日：2003-04-08
申请号：US09782236
申请日：2001-02-13
IPC分类号： B01D53047
CPC分类号： B01D53/047 , B01D53/0476 , B01D2253/1085 , B01D2253/25 , B01D2256/12 , B01D2257/102 , B01D2257/11 , B01D2259/4003 , B01D2259/40064 , B01D2259/402 , B01D2259/4146 , Y10S95/902
摘要： Pressure swing adsorption process for the recovery of high purity oxygen from a feed gas comprising oxygen, nitrogen, and argon. The process includes a forward flow stage which comprises (a) passing the feed gas into a first adsorption zone containing an adsorbent selective for the adsorption of nitrogen over oxygen and argon, and withdrawing therefrom a nitrogen-depleted intermediate gas; (b) passing the nitrogen-depleted intermediate gas into a second adsorption zone containing an adsorbent which is selective for the adsorption of nitrogen over argon and selective for the adsorption of argon over oxygen; (c) withdrawing an oxygen-enriched product gas from the second adsorption zone; and (d) terminating the passing of feed gas into the first adsorption zone and withdrawing an oxygen-enriched depressurization gas from the second adsorption zone in the same flow direction as (c). During (a) or during (d), nitrogen breakthrough from the first adsorption zone can occur and nitrogen can be adsorbed in the second adsorption zone.
摘要翻译： 用于从包含氧，氮和氩的进料气中回收高纯度氧的变压吸附方法。 该方法包括正向流动阶段，其包括（a）使进料气体进入含有选择性地吸附氮气的氧气和氩气并从其中排出贫氮中间气体的第一吸附区域; （b）将贫氮中间气体通入含有吸附剂的第二吸附区，所述吸附剂选择性地吸附氮气并且选择性地吸附氧气; （c）从第二吸附区抽出富氧产物气体; 和（d）终止进料气体进入第一吸附区并从与第（c）相同的流动方向从第二吸附区抽出富氧减压气体。 在（a）期间或（d）期间，可能会发生第一吸附区的氮气穿透，氮吸附在第二吸附区。
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