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1.发明授权Process of removing H.sub.2 S, CO.sub.2, COS and mercaptans from gases by absorption 失效通过吸收从气体中除去H 2 S，CO 2，COS和硫醇的方法
公开(公告)号：US4368059A
公开(公告)日：1983-01-11
申请号：US220345
申请日：1980-12-29
CPC分类号： B01D53/1493 , B01D53/526 , Y02C10/06
摘要： The process of removing H.sub.2 S, CO.sub.2, COS and mercaptans from gases by absorption in an absorbent solution, which is circulated between the absorbing zone and a regenerating zone and which contains at least one organic base dissolved in methanol, has been improved. In accordance with the invention, the absorbent solution contains one or more secondary or tertiary amines general formula R.sub.1 --NH--R.sub.2 or (R.sub.1).sub.2 --N--CH.sub.2 --N--(R.sub.2).sub.2, wherein R.sub.1 and R.sub.2 means CH.sub.2 -- or --CH.sub.2 --CH.sub.3 or CH.sub.3 --CH--CH.sub.3 in a total amount of at least 0.5 to 5.0 moles per liter, and the amine has or the amines have a boiling point between 40.degree. and 110.degree. C. at 1 bar. This improvement permits a selective removal of H.sub.2 S from CO.sub.2 -containing gases.
摘要翻译： 已经改进了在吸收区和再生区之间循环并且含有至少一个溶解在甲醇中的有机碱的吸收剂溶液中通过吸收从气体中除去H 2 S，CO 2，COS和硫醇的方法。 根据本发明，吸收剂溶液含有一种或多种通式为R1-NH-R2或（R1）2-N-CH2-N-（R2）2的仲胺或叔胺，其中R1和R2表示CH2-或 - CH 2 -CH 3或CH 3 -CH-CH 3，其总量为至少0.5-5.0摩尔/升，胺具有或胺在1巴下具有40-110℃的沸点。 这种改进允许从含CO 2的气体中选择性地除去H 2 S。
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2.发明授权Process of decreasing the sulfur content of exhaust gases obtained during the recovery of sulfur 失效在硫回收过程中获得的废气中硫含量降低的过程
公开(公告)号：US4405593A
公开(公告)日：1983-09-20
申请号：US302885
申请日：1981-09-16
CPC分类号： B01D53/52 , C01B17/0404 , C01B17/0452 , C01B17/0456
摘要： In a process of decreasing the sulfur content of exhaust gases obtained during the recovery of sulfur from acid gases containing H.sub.2 S and other S-containing compounds in the Claus process, the acid gases which contain H.sub.2 S and other S-containing compounds are reacted in a Claus plant to form elemental sulfur. A gas which contains H.sub.2 S or SO.sub.2 is subsequently added at a controlled rate to maintain a stoichiometric ratio of 2:1 of H.sub.2 S to SO.sub.2 in the tail gas from the Claus plant. The gas which contains H.sub.2 S or SO.sub.2 may be added to the tail gas from the Claus plant or before the last contacting stage of a multistage Claus plant. During the addition of a gas which contains H.sub.2 S, the Claus plant can be operated at an H.sub.2 S to SO.sub.2 ratio of or below 2:1. During the addition of a gas which contains SO.sub.2 the Claus plant can be operated at an H.sub.2 S to SO.sub.2 ratio of or above 2:1. The H.sub.2 S and SO.sub.2 contained in the tail gas are chemically reacted to form elementary sulfur in a tail gas-desulfurizing plant and the sulfur is withdrawn.
摘要翻译： 在克劳斯工艺中，在从含有H 2 S和其它含S化合物的酸性气体中回收硫期间获得的废气硫含量降低的过程中，含有H 2 S和其它含S化合物的酸性气体在克劳斯 植物形成元素硫。 随后以受控的速率加入含有H 2 S或SO 2的气体，以保持来自克劳斯工厂的尾气中H2S与SO2的化学计量比为2:1。 含有H 2 S或SO 2的气体可以从克劳斯植物的尾气加入到多级克劳斯植物的最后接触阶段之前。 在加入含有H 2 S的气体期间，Claus装置可以以等于或低于2:1的H 2 S至SO 2比来操作。 在加入含有SO 2的气体时，克劳斯植物可以以等于或大于2:1的H 2 S至SO 2比率操作。 尾气中所含的H2S和SO2在尾气脱硫装置中进行化学反应形成元素硫，并将硫取出。
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公开(公告)号：US3963825A
公开(公告)日：1976-06-15
申请号：US256057
申请日：1972-05-23
申请人： Karl Bratzler , Alexander Doerges , Georg Kempf , Paul Rudolph , Johann Schlauer
发明人： Karl Bratzler , Alexander Doerges , Georg Kempf , Paul Rudolph , Johann Schlauer
CPC分类号： C10K1/122 , Y02P20/129
摘要： Gases produced by reacting fuels with oxygen containing gases and water vapor under pressure are desulfurized by scrubbing with a concentrated solution of one or more alkali salts of weak inorganic acids at a temperature near the atmospheric-pressure boiling point of the solution in a column while maintaining an exchange ratio of from 0.2 to 2.0 cubic meters of the concentrated solution per standard cubic meter hydrogen sulfide in the gas to be purified.
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公开(公告)号：US4504449A
公开(公告)日：1985-03-12
申请号：US503487
申请日：1983-06-13
CPC分类号： B01D53/1425 , B01D53/1456 , C01B3/52 , C10K1/143 , C01B2203/0415 , C01B2203/0475
摘要： In a process of regenerating laden absorbent solutions used to desulfurize gases which contain H.sub.2 S and CO.sub.2 and possibly COS, which solutions contain at least one highly volatile secondary amine in an organic solvent, the laden absorbent solution is flashed and stripped with its own vapor. The overhead vapors from the regenerator, which consists of an indirectly heated plate column, are cooled to approximately ambient temperature. The resulting condensate is separated and fed to the top of the regenerator. The cooled gas is withdrawn. A partial stream of the vapor is withdrawn from the regenerator 1 to 10 plates below the outlet for the overhead vapors and the inlet for the condensate and is cooled to ambient temperature. The resulting condensate is fed to the regenerator 1 to 10 plates above the inlet for the absorbent solution. The remaining gas is fed to a re-absorber, in which it is scrubbed in a counter-current operation with at least one partial stream of the absorbent solution, preferably with the effluent from the desulfurization COS. The exhaust gas is withdrawn from the top of the re-absorber. The absorbent solution drained from the re-absorber is fed to the upper portion of the regenerator. The regenerated absorbent solution is withdrawn and used to desulfurize gases which contain H.sub.2 S and CO.sub.2 and possibly COS.
摘要翻译： 在用于对含有H 2 S和CO 2以及可能的COS的气体进行脱硫的负载吸收剂溶液的再生过程中，该溶液在有机溶剂中含有至少一种高挥发性的仲胺，所载的吸收剂溶液被自身蒸发闪蒸并汽提。 来自再生器的塔顶蒸气由间接加热的塔板组成，被冷却到大约环境温度。 所得的冷凝物被分离并进料到再生器的顶部。 冷却的气体被取出。 将蒸汽的一部分流从再生器1排出到出口下面的10个板塔顶蒸气和冷凝物的入口，并冷却至环境温度。 所得的冷凝物被供给到再生器1至10个用于吸收剂溶液的入口上方的板。 将剩余的气体进料到再吸收器中，其中以与吸收剂溶液的至少一个部分流（其优选与来自脱硫COS的流出物）逆流操作进行洗涤，排气从顶部排出 的吸收器。 从再吸收器排出的吸收剂溶液被供给到再生器的上部。 将再生的吸收剂溶液取出并用于对含有H 2 S和CO 2以及可能的COS的气体进行脱硫。
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公开(公告)号：US3931389A
公开(公告)日：1976-01-06
申请号：US517343
申请日：1974-10-23
申请人： Karl Bratzler , Alexander Dorges , Georg Kempf , Paul Rudolph , Johann Schlauer
发明人： Karl Bratzler , Alexander Dorges , Georg Kempf , Paul Rudolph , Johann Schlauer
摘要： Gases produced by reacting fuels with oxygen containing gases and water vapor under pressure are desulfurized by scrubbing with a concentrated solution of one or more alkali salts of weak inorganic acids at a temperature near the atmospheric-pressure boiling point of the solution in a column while maintaining an exchange ratio of from 0.2 to 2.0 cubic meters of the concentrated solution per standard cubic meter hydrogen sulfide in the gas to be purified.
摘要翻译： 在燃料与含氧气体和水蒸汽在压力下反应生成的气体通过一个或多个弱无机酸的碱金属盐的浓缩溶液在塔的溶液的大气压沸点附近的温度下进行脱硫，同时保持 待纯化气体中标准立方米硫化氢的浓缩溶液的0.2至2.0立方米的交换比。
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公开(公告)号：US5431877A
公开(公告)日：1995-07-11
申请号：US205523
申请日：1994-03-02
申请人： Volker Brucken , Gert Ungar , Hans-Martin Stonner , Ernst Stoldt , Johann Schlauer , Nikola Anastasijevic , Eilhard Hillrichs
发明人： Volker Brucken , Gert Ungar , Hans-Martin Stonner , Ernst Stoldt , Johann Schlauer , Nikola Anastasijevic , Eilhard Hillrichs
CPC分类号： C23F11/182 , Y10S210/904
摘要： An aqueous solution which contains ammonium polysulfide is proportionally added to the sour water, which contains cyanide ions, ammonium ions, and sulfide ions. At least part of the cyanide ions contained in the sour water is converted to thiocyanate ions by the ammonium polysulfide. The solution which contains ammonium polysulfide is prepared from an aqueous solution by oxidation in an electrochemical cell. That aqueous solution may consist entirely or in part of sour water.
摘要翻译： 将含有多硫化铵的水溶液按比例添加到含有氰化物离子，铵离子和硫化物离子的酸性水中。 包含在酸性水中的氰化物离子的至少一部分被多硫化铵转化成硫氰酸根离子。 含有多硫化铵的溶液通过电化学电池中的氧化由水溶液制备。 该水溶液可以完全或部分地由酸性水组成。
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7.发明授权
公开(公告)号：US4532116A
公开(公告)日：1985-07-30
申请号：US549347
申请日：1983-11-04
CPC分类号： B01D53/14 , B01D53/1493
摘要： The gas which contains sulfur compounds consisting of H.sub.2 S and/or COS is scrubbed with an absorbent solution which contains at least one amine. The gas to be desulfurized which enters the scrubbing zone is at a temperature in the range of 25.degree. to 100.degree. C. and rises in the scrubbing zone in a countercurrent to the scrubbing solution. The gas leaving the absorbent solution is indirectly cooled to a temperature which is at least 20.degree. C. below the entrance temperature of the gas and is not below 5.degree. C. The indirect cooling results in a condensate, which contains at least one secondary amine. That condensate is passed through the scrubbing zone as an absorbent solution. The condensate leaving the scrubbing zone contains at least 10 moles secondary amine and preferably at least 100 moles secondary amine per mole H.sub.2 S and COS in the gas to be desulfurized. The gas to be desulfurized suitably contains secondary amine used in the absorbent solution as well as an organic solvent, such as methanol, ethanol or isopropanol.
摘要翻译： 含有由H 2 S和/或COS组成的硫化合物的气体用含有至少一种胺的吸收剂溶液洗涤。 进入洗涤区的要脱硫的气体的温度在25℃至100℃的范围内，并且与洗涤溶液相反地在洗涤区中升高。 离开吸收剂溶液的气体被间接冷却至比气体入口温度低至少20℃的温度，不低于5℃。间接冷却导致冷凝物含有至少一个仲胺 。 该冷凝物作为吸收剂溶液通过洗涤区。 离开洗涤区的冷凝物含有至少10摩尔仲胺，优选至少100摩尔仲胺，每摩尔H2S和待脱硫气体中的COS。 要脱硫的气体适当地含有用于吸收剂溶液中的仲胺以及有机溶剂，例如甲醇，乙醇或异丙醇。
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8.发明授权Process of regenerating alkali carbonate solutions formed by the desulfurization of hot gases 失效通过热气脱硫形成的碱金属碳酸盐溶液的再生过程
公开(公告)号：US4258019A
公开(公告)日：1981-03-24
申请号：US922396
申请日：1978-07-06
申请人： Heinz Hiller , Johann Schlauer , Alexander Doerges , Georg Kempf , Vaclav Svoboda , Winfried Zeschmar
发明人： Heinz Hiller , Johann Schlauer , Alexander Doerges , Georg Kempf , Vaclav Svoboda , Winfried Zeschmar
CPC分类号： B01D53/1462 , B01D3/00 , B01D53/1425 , Y02P70/34
摘要： A process for the selective removal of hydrogen sulfide from a gas containing hydrogen sulfide and carbon dioxide wherein said gas is contacted at superatmospheric pressure with an alkali metal carbonate solution, the resultant solution which contains hydrosulfide and bicarbonate is subjected to pressure reduction, the total alkali metal bicarbonate content of the resultant solution is adjusted so that it is at least 55% of the total alkali content of the solution and the said solution is then stripped and recycled to the hydrogen sulfide absorption step.
摘要翻译： 从含有硫化氢和二氧化碳的气体中选择性除去硫化氢的方法，其中所述气体在超大气压下与碱金属碳酸盐溶液接触，所得到的含有硫氢化氢和碳酸氢盐的溶液经过减压，总碱 调节所得溶液的金属碳酸氢盐含量，使其为溶液的总碱含量的至少55％，然后将所述溶液汽提并再循环至硫化氢吸收步骤。
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公开(公告)号：US4318716A
公开(公告)日：1982-03-09
申请号：US170414
申请日：1980-07-21
摘要： An improvement in a process of regenerating a hydrocarbon laden water miscible high boiling organic solvent obtained by scrubbing a hydrocarbon-containing gas with said water miscible high boiling organic solvent at normal temperature and super atmospheric pressure, wherein the laden solvent is regenerated by flashing, heating and/or stripping, cooled and recycled to the scrubbing step, the improvement comprising:A. adding liquid hydrocarbons to at least a part of said regenerated solvent and thereafter extracting the resultant mixture in the presence of water whereby to obtain a hydrocarbon rich phase and an aqueous phase containing said solvent;B. separating said aqueous phase from said hydrocarbon rich phase and recycling said aqueous phase to the regeneration step; andC. withdrawing said hydrocarbon rich phase.
摘要翻译： 在常温和超大气压下通过用所述水混溶性高沸点有机溶剂洗涤含烃气体而获得的含烃载水混溶性高沸点有机溶剂的再生方法的改进，其中通过闪蒸，加热再生含负载溶剂 和/或汽提，冷却和再循环到洗涤步骤，改进包括：A.将液体烃加入到所述再生溶剂的至少一部分中，然后在水存在下萃取所得混合物，从而得到富含烃的相和 含有所述溶剂的水相; B.将所述水相与所述富碳相分离并将所述水相再循环到再生步骤; 和C.撤回所述富碳相。
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公开(公告)号：US4297330A
公开(公告)日：1981-10-27
申请号：US134360
申请日：1980-03-27
申请人： Johann Schlauer , Georg Kempf , Alexander Doerges
发明人： Johann Schlauer , Georg Kempf , Alexander Doerges
CPC分类号： C10K1/122 , B01D53/1462 , Y02P20/152
摘要： In a process of selectively desulfurizing gases which contain hydrogen sulfide and carbon dioxide comprising scrubbing the gases with an aqueous potassium carbonate solution under superatmospheric pressure and at temperatures of about 100.degree. C., regenerating the laden scrubbing solution and recycling the regenerated scrubbing solution, the improvement wherein the gases to be purified are scrubbed with an aqueous potassium carbonate solution so as to maintain a mass ratio of 1.0 to 3.0 vals (gram equivalents) of alkali in the solution per mole of CO.sub.2 and H.sub.2 S in the gases to be purified, the laden scrubbing liquor is subsequently regenerated by being stripped with a gas in which a CO.sub.2 partial pressure above 0.2 bar is maintained, and the so regenerated scrubbing solution is recycled.
摘要翻译： 在含有硫化氢和二氧化碳的气体的选择性脱硫过程中，包括在超大气压和大约100℃的温度下用碳酸钾水溶液洗涤气体，再生含水洗涤溶液并再循环再生洗涤溶液， 其中待净化的气体用碳酸钾水溶液洗涤，以保持溶液中溶液中的质量比为每摩尔二氧化碳和待纯化气体中的H 2 S的溶液中的1.0-3.0（质量）碱， 随后通过用保持二氧化碳分压高于0.2巴的气体汽提来再生含水洗涤液，并将再生的洗涤液再循环。
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