公开(公告)号：US3963825A

公开(公告)日：1976-06-15

申请号：US256057

申请日：1972-05-23

Applicant: Karl Bratzler ,  Alexander Doerges ,  Georg Kempf ,  Paul Rudolph ,  Johann Schlauer

Inventor： Karl Bratzler ,  Alexander Doerges ,  Georg Kempf ,  Paul Rudolph ,  Johann Schlauer

IPC: C10K1/12 ,  B01D53/34

CPC classification number: C10K1/122 ,  Y02P20/129

Abstract: 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.

公开(公告)号：US4088735A

公开(公告)日：1978-05-09

申请号：US764316

申请日：1977-01-31

Applicant: Karl Bratzler ,  Alexander Doerges ,  Gerhard Hochgesand ,  Manfred Kriebel

Inventor： Karl Bratzler ,  Alexander Doerges ,  Gerhard Hochgesand ,  Manfred Kriebel

IPC: B01D53/14 ,  C10K1/06 ,  C10K1/16 ,  B01D53/34

CPC classification number: C10K1/06 ,  B01D53/14 ,  B01D53/1406 ,  B01D53/1456 ,  B01D53/1487 ,  C10K1/16

Abstract: A process for purifying gases produced by the gasification of fossil fuels by a treatment with water vapor and oxygen under superatmospheric pressure. The raw gas produced is treated to remove catalyst-deteriorating impurities such as mono- and polyunsaturated hydrocarbons, mercaptans, HCN, HCl, H.sub.2 S, CS.sub.2, COS, and NH.sub.3, and to desulfurize the gas to produce an exhaust gas which is rich in H.sub.2 S. The gas is cooled and scrubbed under superatmospheric pressures and at normal temperatures. The raw gas, at a temperature of 150.degree.-170.degree. C., is indirectly cooled to ambient temperature. The condensible hydrocarbons are then separated and removed, and the gas is then scrubbed with water to remove ammonia in a first scrubbing stage wherein the rate of water addition is controlled to be just sufficient to remove the ammonia. The gas is then scrubbed with a high-boiling organic solvent which is miscible with water and to which sulfur has been added in a second scrubbing stage in which the rate of solvent addition is controlled in dependence on the solubility of the methyl mercaptan, which is to be removed, in the solvent. The gas is scrubbed with the same solvent in a third scrubbing stage in which the water content of the solvent is kept at 5-30 mol percent H.sub.2 O in which H.sub.2 S and COS are entirely and selectively removed from the gas. Lastly, the scrubbing agents from the second and third scrubbing stages are separately regenerated and recycled to the second and the third scrubbing stages for re-use.

Abstract translation: 通过在超大气压下用水蒸汽和氧气处理来净化化石燃料气化产生的气体的方法。 处理生成的原料气体以除去催化剂恶化的杂质如单不饱和烃，硫醇，HCN，HCl，H 2 S，CS 2，COS和NH 3，并将气体脱硫以产生富H2S的废气 。 在超大气压和常温下将气体冷却和洗涤。 将原料气体在150-170℃的温度间接冷却至环境温度。 然后将可冷凝烃分离并除去，然后在第一次洗涤阶段用水洗涤气体以除去氨，其中加水速率恰好足以除去氨。 然后用高沸点有机溶剂洗涤气体，该高沸点有机溶剂与水混溶，并且在第二洗涤阶段加入了硫，其中根据甲硫醇的溶解度来控制溶剂添加速率， 在溶剂中除去。 在第三个洗涤阶段用相同的溶剂洗涤气体，其中溶剂的水含量保持在5-30mol％H 2 O，其中H 2 S和COS完全从气体中选择性地除去。 最后，来自第二和第三洗涤阶段的洗涤剂分别再生并再循环到第二和第三洗涤阶段以供再利用。

公开(公告)号：US4011066A

公开(公告)日：1977-03-08

申请号：US593915

申请日：1975-07-07

Applicant: Karl Bratzler ,  Alexander Doerges ,  Manfred Kriebel

Inventor： Karl Bratzler ,  Alexander Doerges ,  Manfred Kriebel

IPC: B01D53/52 ,  B01D53/46 ,  B01D53/48 ,  B01D53/54 ,  C10K1/04 ,  C10K1/08 ,  C10K1/16 ,  B01D19/00

CPC classification number: C10K1/08

Abstract: A process of purifying gases produced by a gasification of fossil fuels wherein the gas is cooled and scrubbed under superatmospheric pressures at normal temperatures while the raw gas, at a temperature of 150.degree.-170.degree. C, is indirectly cooled to ambient temperatures, the condensible hydrocarbons are separated and removed, the gas is scrubbed with water to remove ammonia in a first scrubbing stage in which the rate of water addition is controlled to be just sufficient to remove the ammonia, the gas is then scrubbed with a high-boiling organic solvent which is miscible with water and to which sulfur is added, the gas is subsequently scrubbed with the same solvent in a third scrubbing stage in which the water content of the solvent is kept at 5-30 mole percent H.sub.2 O and in which H.sub.2 S and COS are entirely removed from the gas, and the scrubbing agents from the second and third scrubbing stages are separately regenerated and recycled to the second and third scrubbing stages.The scrubbing agent used in the second scrubbing stage is flashed approximately to atmospheric pressures, adding water, heating the scrubbing agent to the boiling temperature but not in excess of 170.degree. C, treating the scrubbing agent in a stripping column with water vapor or stripping gas to remove liquid impurities, condensing the mixed vapors, isolating the condensates by phase separation, and feeding part of the aqueous phase as a reflux to the upper portion of the stripping column while the stripped scrubbing agent is cooled and is fed back to the top of the second scrubbing stage.

公开(公告)号：US3966875A

公开(公告)日：1976-06-29

申请号：US405678

申请日：1973-10-11

Applicant: Karl Bratzler ,  Alexander Doerges

Inventor： Karl Bratzler ,  Alexander Doerges

IPC: B01D53/48 ,  C01B3/52 ,  C10K1/08 ,  C10K1/10 ,  C10K1/16 ,  B01D53/34

CPC classification number: C10K1/10 ,  C10K1/085 ,  C10K1/16

Abstract: A process for desulfurization of fuel or synthesis gases containing carbon oxysulfide wherein the carbon oxysulfide is hydrolyzed by treating the gas at a temperature of 50.degree. to 105.degree.C with a low-volatility organic solvent inert to the carbon oxysulfide and containing 15 to 50 mole-percent water, the hydrolysis products and other sulfur-containing compounds being removed by subsequent scrubbing of the gas.

Abstract translation: 一种含有硫氧化硫的燃料或合成气的脱硫方法，其中通过在对于氧硫化碳是惰性的低挥发性有机溶剂处理50℃至105℃的温度下将含硫氧硫化物水解，并含有15-50摩尔 水，通过随后洗涤气体除去水解产物和其它含硫化合物。

公开(公告)号：US4368059A

公开(公告)日：1983-01-11

申请号：US220345

申请日：1980-12-29

Applicant: Alexander Doerges ,  Manfred Kriebel ,  Johann Schlauer

Inventor： Alexander Doerges ,  Manfred Kriebel ,  Johann Schlauer

IPC: B01D53/48 ,  B01D53/14 ,  B01D53/52 ,  B01D53/77

CPC classification number: B01D53/1493 ,  B01D53/526 ,  Y02C10/06

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US4318716A

公开(公告)日：1982-03-09

申请号：US170414

申请日：1980-07-21

Applicant: Alexander Doerges ,  Manfred Kriebel ,  Johann Schlauer

Inventor： Alexander Doerges ,  Manfred Kriebel ,  Johann Schlauer

IPC: B08B3/08 ,  C07C7/11 ,  C10K1/08 ,  C10K1/16 ,  B01D19/00 ,  B01D53/14

CPC classification number: C10K1/16 ,  C07C7/11 ,  C10K1/08

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US4297330A

公开(公告)日：1981-10-27

申请号：US134360

申请日：1980-03-27

Applicant: Johann Schlauer ,  Georg Kempf ,  Alexander Doerges

Inventor： Johann Schlauer ,  Georg Kempf ,  Alexander Doerges

IPC: B01D53/14 ,  C10K1/12 ,  B01D53/34

CPC classification number: C10K1/122 ,  B01D53/1462 ,  Y02P20/152

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US4504449A

公开(公告)日：1985-03-12

申请号：US503487

申请日：1983-06-13

Applicant: Alexander Doerges ,  Johann Schlauer ,  Manfred Kriebel ,  Anton Hude

Inventor： Alexander Doerges ,  Johann Schlauer ,  Manfred Kriebel ,  Anton Hude

IPC: B01D53/14 ,  B01D53/40 ,  B01D53/52 ,  B01D53/77 ,  C01B3/52 ,  C10K1/14 ,  B01D53/34

CPC classification number: B01D53/1425 ,  B01D53/1456 ,  C01B3/52 ,  C10K1/143 ,  C01B2203/0415 ,  C01B2203/0475

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US4137294A

公开(公告)日：1979-01-30

申请号：US674992

申请日：1976-04-08

Applicant: Karl Braizler ,  Alexander Doerges

Inventor： Karl Braizler ,  Alexander Doerges

IPC: B01D53/14 ,  C10K1/14 ,  B01D53/34

CPC classification number: C10K1/143 ,  B01D53/1493 ,  C10K1/14

Abstract: In scrubbing fuel gases or synthesis gas, absorption is improved by using simple oxygen containing water soluble organic compounds such as the lower alcohols, butanols, or water soluble lower ethers.

Abstract translation: 在清洗燃料气体或合成气体时，通过使用简单的含氧水溶性有机化合物如低级醇，丁醇或水溶性低级醚来提高吸收。

公开(公告)号：US4532116A

公开(公告)日：1985-07-30

申请号：US549347

申请日：1983-11-04

Applicant: Alexander Doerges ,  Johann Schlauer ,  Manfred Kriebel ,  Anton Hude

Inventor： Alexander Doerges ,  Johann Schlauer ,  Manfred Kriebel ,  Anton Hude

IPC: B01D53/14 ,  B01D53/48 ,  B01D53/50 ,  B01D53/52 ,  B01D53/77 ,  C10K1/14 ,  B01D53/34

CPC classification number: B01D53/14 ,  B01D53/1493

Abstract: 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.

Abstract translation: 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。