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1. 发明授权

US5262139A Removal of sulfur dioxide from gas streams 失效
标题翻译：从气流中去除二氧化硫
公开(公告)号：US5262139A
公开(公告)日：1993-11-16
申请号：US953505
申请日：1992-09-29
申请人： Leo E. Hakka , Paul J. Parisi
发明人： Leo E. Hakka , Paul J. Parisi
IPC分类号： B01D53/14 , C01B17/60 , C01B17/20 , C01B17/00
CPC分类号： B01D53/1468 , B01D53/1425 , B01D53/1493 , C01B17/60
摘要： Processes for the removal of sulfur dioxide from gas streams, e.g., stack gases, are disclosed wherein the absorption occurs in the presence of a diamine. The first amine group, i.e., stronger amine group, of the diamine is in salt form, having sulfite anions associated therewith, and absorbs by a sulfite/bisulfite absorption mechanism. The second amine groups absorbs sulfur dioxide in free base form. The sulfite salt on the first amine group is maintained by controlling the level of heat stable salts in the absorbent. Both the first and second amine groups can be conveniently regenerated together, e.g., by steam stripping.
摘要翻译：公开了从气流（例如烟道气体）中除去二氧化硫的方法，其中吸收发生在二胺的存在下。二胺的第一胺基，即更强的胺基是盐形式，具有与其相关的亚硫酸根阴离子，并被亚硫酸盐/亚硫酸氢盐吸收机理吸收。第二胺基以游离碱形式吸收二氧化硫。通过控制吸收剂中热稳定盐的水平来维持第一胺基上的亚硫酸盐。第一和第二胺基都可以方便地一起再生，例如通过汽提。

2. 发明授权

US07056482B2 Method for recovery of CO2 from gas streams 失效
标题翻译：从气流中回收CO2的方法
公开(公告)号：US07056482B2
公开(公告)日：2006-06-06
申请号：US10459519
申请日：2003-06-12
申请人： Leo E. Hakka , Michel A. Ouimet
发明人： Leo E. Hakka , Michel A. Ouimet
IPC分类号： C01B17/16
CPC分类号： B01D53/1475 , B01D53/1406 , B01D53/1493 , Y02C10/06
摘要： A process for recovering CO2 from a feed gas stream comprises treating the feed gas stream with a regenerated absorbent comprising at least one tertiary amine absorbent having a pKa for the amino function of from about 6.5 to about 9 in the presence of an oxidation inhibitor to obtain a CO2 rich stream and subsequently treating the CO2 rich stream to obtain the regenerated absorbent and a CO2 rich product stream. The feed gas stream may also include SO2 and/or NOx.
摘要翻译：从进料气流中回收CO 2的方法包括用包含至少一种具有氨基官能团的pK a a的叔胺吸收剂的再生吸收剂处理进料气流在约0.5至约9的范围内，在氧化抑制剂存在下，得到富CO 2的料流，随后处理富CO 2的料流以获得再生的吸收剂和富CO 2产物流。进料气流还可以包括SO 2和/或NO x x。

3. 发明授权

US5292407A Process for converting heat stable amine salts to heat regenerable amine salts 失效
标题翻译：将热稳定性胺盐转化为可热再生胺盐的方法
公开(公告)号：US5292407A
公开(公告)日：1994-03-08
申请号：US993015
申请日：1992-12-18
申请人： Veronique Roy , Leo E. Hakka , Jean I. Sarlis
发明人： Veronique Roy , Leo E. Hakka , Jean I. Sarlis
IPC分类号： B01D53/14 , B01D61/44 , C07C209/00
CPC分类号： B01D53/1468 , B01D53/1425 , B01D61/44 , C07C209/00
摘要： Processes are disclosed for converting heat stable amine salts to heat regenerable amine salts using a modified electrodialysis zone. The processes of the present invention can be used to reduce the level of heat stable salts in a lean solvent stream in an acid gas removal process and can be integrated with the acid gas removal process to utilize process streams as a source of ions.
摘要翻译：公开了使用改进的电渗析区将热稳定的胺盐转化成可热再生的胺盐的方法。本发明的方法可以用于在酸性气体去除方法中降低贫溶剂流中的热稳定盐的水平，并且可以与酸性气体去除方法一体化以利用工艺流作为离子源。

4. 发明授权

US07214358B2 Low energy regenerable SO2 scrubbing process 有权
标题翻译：低能可再生SO2洗涤过程
公开(公告)号：US07214358B2
公开(公告)日：2007-05-08
申请号：US10639678
申请日：2003-08-13
申请人： Patrick M. Ravary , John Nicolas Sarlis , Paul Joseph Parisi , Leo E. Hakka
发明人： Patrick M. Ravary , John Nicolas Sarlis , Paul Joseph Parisi , Leo E. Hakka
IPC分类号： B01D53/50
CPC分类号： B01D53/1493 , B01D53/1481 , Y02A50/2349
摘要： Sulphur dioxide is removed from gas streams by contacting the gas stream with an absorbing medium containing an amine capable of forming an amine salt, heat stable salt and sulfite. The level of heat stable salt is selected such that during the regeneration process of the sulphur dioxide rich amine, the pH of the absorbing medium is at a selected level or below when the level of sulfite in the absorbing medium has been reduced to a specified value. The amine that absorbs the sulphur dioxide has a pKa less than that of sulfite. If the absorbent includes a diamine, then the spent absorbing medium is regenerated under conditions such that at least one amine group remains in salt form.
摘要翻译：通过使气流与含有能够形成胺盐，热稳定盐和亚硫酸盐的胺的吸收介质接触，从气流中除去二氧化硫。选择热稳定盐的水平，使得在富二氧化亚胺的再生过程中，当吸收介质中的亚硫酸盐水平已经降低到指定值时，吸收介质的pH处于选定的水平或更低。吸收二氧化硫的胺的pKa小于亚硫酸盐。如果吸收剂包含二胺，则在使得至少一个胺基保持为盐形式的条件下再使用废吸收介质。

5. 发明授权

US06872371B2 Method and apparatus for NOx and SO2 removal 失效
标题翻译：用于NOx和SO2去除的方法和装置
公开(公告)号：US06872371B2
公开(公告)日：2005-03-29
申请号：US10211514
申请日：2002-08-05
申请人： Leo E Hakka , Michel A. Ouimet
发明人： Leo E Hakka , Michel A. Ouimet
IPC分类号： B01D53/14 , C01B21/00
CPC分类号： B01D53/14 , B01D53/1418
摘要： NO is removed from a gas stream by reacting NO with an absorbent to form a metal nitrosyl complex. The metal nitrosyl complex is reacted with sulfite and/or bisulfite to produce recoverable reaction products containing nitrogen and/or sulfur and to regenerate the reagent. The recoverable reaction products are then separated from the regenerated reagent.
摘要翻译：通过使NO与吸收剂反应形成金属亚硝酰基络合物，从气流中除去NO。金属亚硝酰基络合物与亚硫酸盐和/或亚硫酸氢盐反应产生含有氮和/或硫的可回收的反应产物并再生试剂。然后将可回收的反应产物与再生试剂分离。

6. 发明授权

US07416582B2 Method and apparatus for NOx and Hg removal 有权
标题翻译：用于排除NOx和Hg的方法和装置
公开(公告)号：US07416582B2
公开(公告)日：2008-08-26
申请号：US11207820
申请日：2005-08-22
申请人： Leo E. Hakka , Michel A. Ouimet , John Nicolas Sarlis , Colin Francis Ryan
发明人： Leo E. Hakka , Michel A. Ouimet , John Nicolas Sarlis , Colin Francis Ryan
IPC分类号： B01D53/56 , B01D53/96
CPC分类号： B01D53/56 , B01D53/507 , B01D53/64 , B01D53/965 , B01D2251/90 , B01D2251/902
摘要： A cyclic process for the removal of NOx from a NOx containing feed gas, and optionally removal mercury vapour and/or sulfur dioxide is provided. A process is also provided by which an iron chelate absorbent may be thermally regenerated.
摘要翻译：提供了一种用于从含有含氮原料气体中除去NO x x的循环方法，以及任选地除去汞蒸汽和/或二氧化硫。还提供了可以热再生铁螯合吸收剂的方法。

7. 发明授权

US06342169B1 Safe storage and transportation of sulfur dioxide 有权
标题翻译：安全储存和运输二氧化硫
公开(公告)号：US06342169B1
公开(公告)日：2002-01-29
申请号：US09380078
申请日：1999-08-25
申请人： Leo E. Hakka , Paul J. Parisi
发明人： Leo E. Hakka , Paul J. Parisi
IPC分类号： C09K300
CPC分类号： C01B17/48 , B01D53/1481 , C01B17/56 , C01B17/60 , Y02A50/2349
摘要： The invention relates to a method of confining sulfur dioxide for storage or transportation under safe conditions. The method of the invention comprises the steps of (a) contacting a sulfur dioxide-containing gas stream with an absorbing medium comprising water and a water-soluble amine absorbent having at least one amine group with a pKa value greater than about 7 and at least one other amine group with a pKa value less than about 6.5 so that the at least one amine group with a pKa value greater than about 7 irreversibly absorbs sulfur dioxide in salt form rendering the amine absorbent non-volatile and the at least one other amine group with a pKa value less than about 6.5 reversibly absorbs sulfur dioxide, to thereby saturate the absorbing medium with sulfur dioxide against a partial pressure of sulfur dioxide of no more than about 1 atmosphere at 25° C.; and (b) charging the absorbing medium saturated with sulfur dioxide obtained in step (a) into a container for storage or transportation.
摘要翻译：本发明涉及一种将二氧化硫限制在安全条件下储存或运输的方法。本发明的方法包括以下步骤：（a）使含二氧化硫的气流与包含水的吸收介质和具有pKa值大于约7的至少一个胺基的水溶性胺吸收剂接触，并且至少 pKa值小于约6.5的另一个胺基，使得pKa值大于约7的至少一个胺基不可逆地吸收盐形式的二氧化硫，使得胺吸收剂不挥发和至少一种其它胺基 pKa值小于约6.5可逆地吸收二氧化硫，从而使二氧化硫的吸收介质在25℃下对二氧化硫分压不超过约1个大气饱和; 和（b）将在步骤（a）中获得的饱和二氧化硫的吸收介质装入用于储存或运输的容器中。

8. 发明授权

US5202103A Removal of sulfur dioxide from gas streams 失效
标题翻译：从气流中去除二氧化硫
公开(公告)号：US5202103A
公开(公告)日：1993-04-13
申请号：US811813
申请日：1991-12-20
申请人： John C. Chang , Leo E. Hakka , Veronique Roy
发明人： John C. Chang , Leo E. Hakka , Veronique Roy
IPC分类号： B01D53/50 , B01D53/77 , C01F11/46
CPC分类号： B01D53/501 , C01F11/464
摘要： Processes are provided for the removal of sulfur dioxide from gas streams using aqueous lime or limestone slurries containing an additive comprising an amine. The amines have an available alkalinity of at least 0.5 meq/gram at a pH between 3.0 and 5.5. The amines are highly soluble in the slurry and can have a low volatility, thereby reducing amine losses with the gas product. Furthermore, amines which are absorbed on the calcium sulfate or calcium sulfite by-products can be recovered by water-washing with a water make-up stream.

9. 发明授权

US5019361A Removal and recovery of sulphur dioxide from gas streams 失效
标题翻译：从气流中去除和回收二氧化硫
公开(公告)号：US5019361A
公开(公告)日：1991-05-28
申请号：US360404
申请日：1989-06-02
申请人： Leo E. Hakka
发明人： Leo E. Hakka
IPC分类号： B01D53/14 , B01D53/34 , B01D53/50 , B01D53/77 , C01B17/60
CPC分类号： B01D53/1493 , B01D53/1481 , B01D53/507 , Y02C10/06
摘要： Sulphur dioxide is removed from gas streams by contacting the gas stream with an absorbing medium containing less than about 80 wt. % of water and the spent absorbing medium subsequently is regenerated by removing absorbed SO.sub.2. The absorbing medium comprises amine salt absorbent having at least two amine groups, at least one of which is a salt and at least one of which has a pKa of about 4.5 to 7.3. The absorption is at a temperature of less than about 60.degree. C. The spent absorbing medium is regenerated under conditions such that at least one amine group remains in salt form.

10. 发明授权

US5017350A Gas scrubbing process 失效
标题翻译：气体洗涤过程
公开(公告)号：US5017350A
公开(公告)日：1991-05-21
申请号：US432850
申请日：1989-11-07
申请人： Leo E. Hakka , John N. Sarlis
发明人： Leo E. Hakka , John N. Sarlis
IPC分类号： B01D53/14 , B01D53/50
CPC分类号： B01D53/507 , B01D53/1493 , Y02C10/06
摘要： Components are removed from gas streams by contact in a contact zone with finely-divided droplets of reversible liquid sorbent wherein a portion of the droplets is coalesced, which droplets contain a concentration of component sorbed greater than that predicted by vapor-liquid equilibrium at the condition of the gas stream at the exit of the contact zone.
摘要翻译：通过在接触区中与可逆液体吸附剂的细分液滴接触来将组分从气流中除去，其中一部分液滴聚结，该液滴含有大于在该条件下气液平衡所预测的组分浓度的气流在接触区的出口处。

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