公开(公告)号：US4478799A

公开(公告)日：1984-10-23

申请号：US447821

申请日：1982-12-08

Applicant: Georg Bengeser ,  Gerhard Ranke

Inventor： Georg Bengeser ,  Gerhard Ranke

IPC: B01D53/64 ,  B01D53/14 ,  B01D53/40 ,  B01D53/52 ,  B01D53/77 ,  C10K1/16 ,  B01D53/34 ,  C01B17/04

CPC classification number: B01D53/1456 ,  B01D53/526 ,  C10K1/165

Abstract: In the removal of sour gases, H.sub.2 S in particular, from CO-containing gaseous mixtures containing heavy metal carbonyls by scrubbing under pressure at temperatures of below 0.degree. C. with a scrubbing medium, the scrubbing medium is regenerated by inter alia, being heated by means of heat exchangers, and such exchangers are normally fouled by precipitates of metal sulfides which owe their presence to the decomposition of the metal carbonyls to form reactive heavy metal which combines with sulfide ion. To avoid fouling of the heat exchangers, the CO partial pressure is increased during the heating of the loaded scrubbing medium, to above the partial pressure of the CO in equilibrium with the carbonyls in the scrubbing medium thereby preventing the decomposition of the carbonyls.

Abstract translation: 在通过用洗涤介质在低于0℃的温度下在压力下进行擦洗来除去特别是含有重金属羰基化物的含CO气态混合物的酸性气体的硫化氢，洗涤介质尤其是被 这种交换器通常被金属硫化物的沉淀物所污染，这些金属硫化物的存在使其分解成金属羰基化合物，形成与硫化物离子结合的反应性重金属。 为了避免热交换器的结垢，在加载的洗涤介质的加热期间CO分压增加到与洗涤介质中的羰基平衡的CO分压之上，从而防止羰基分解。

公开(公告)号：US4430316A

公开(公告)日：1984-02-07

申请号：US328553

申请日：1981-12-08

Applicant: Gerhard Ranke ,  Horst Weiss

Inventor： Gerhard Ranke ,  Horst Weiss

IPC: B01D53/14 ,  C01B3/52 ,  C01B17/04 ,  B01J14/00

CPC classification number: B01D53/1406 ,  B01D53/1462 ,  C01B3/52 ,  C01B2203/0415 ,  C01B2203/0475 ,  C01B2203/0485 ,  Y02C10/06 ,  Y02P20/152

Abstract: In a system for the separation of sour gases especially hydrogen sulfide and carbon dioxide from a raw gaseous mixture e.g., hydrogen-containing in order to form a purified gaseous mixture, comprising scrubbing the gaseous mixture in a first scrubbing stage with a physical scrubbing liquid e.g., methanol having a higher absorbability for hydrogen sulfide than for carbon dioxide, withdrawing from the scrubbing stage a first stream of scrubbing liquid loaded with hydrogen sulfide and carbon dioxide, and regenerating the loaded scrubbing liquid to form (a) a gaseous phase containing hydrogen sulfide, and (b) regenerated scrubbing liquid, the improvement of scrubbing said gaseous phase containing hydrogen sulfide in a second scrubbing stage with a stream of scrubbing liquid capable of absorbing additional H.sub.2 S, e.g., a CO.sub.2 -depleted stream from an H.sub.2 S enrichment column; and subjecting resultant second stream of scrubbing liquid loaded with hydrogen sulfide to a separation stage, preferably rectification, to form a bottoms of regenerated scrubbing liquid and an overhead of a gaseous phase rich in hydrogen sulfide irrespective of whether the raw gaseous mixture has a very low H.sub.2 S concentration.

Abstract translation: 在用于从原始气体混合物例如含氢气分离酸性气体，特别是硫化氢和二氧化碳的系统中，以形成纯化的气体混合物，其中包括在第一洗涤阶段用物理洗涤液洗涤气体混合物，例如 ，对于硫化氢具有比二氧化碳更高的吸收性的甲醇，从洗涤阶段退出装载有硫化氢和二氧化碳的第一洗涤液流，并再生装载的洗涤液以形成（a）含有硫化氢的气相 ，和（b）再生洗涤液，改进在第二洗涤阶段用能够吸收额外H 2 S的洗涤液流，例如来自H 2 S富集塔的CO 2贫化物流洗涤含有硫化氢的气相; 并将装有硫化氢的洗涤液的所得第二流经分离阶段，优选精馏，以形成富含硫化氢的气相的再生洗涤液的塔底物和塔顶馏出物，而不管原料气体混合物是否非常低 H2S浓度。

公开(公告)号：US4324567A

公开(公告)日：1982-04-13

申请号：US107119

申请日：1979-12-26

Applicant: Gerhard Ranke ,  Horst Weiss

Inventor： Gerhard Ranke ,  Horst Weiss

IPC: B01D53/14 ,  B01D53/52 ,  C01B3/52 ,  C07C7/11

CPC classification number: C01B3/52 ,  B01D53/14 ,  B01D53/1406 ,  B01D53/526 ,  C07C7/11 ,  C01B2203/0415 ,  C01B2203/0475 ,  C01B2203/0485

Abstract: In a process for separating and obtaining as product gases at least two gaseous components from a gaseous mixture containing same by scrubbing with a physical scrubbing liquid exhibiting a higher dissolving power for at least one of the components to be separated than for at least one other of these components, wherein a first scrubbing liquid stream, loaded with all of the components to be separated, and a second scrubbing liquid stream, merely containing proportions of the less soluble component or components, are withdrawn from the scrubbing stage; a gaseous fraction is liberated by expansion of the first scrubbing liquid stream, freed of the more soluble component or components by treatment with the second, likewise expanded scrubbing liquid stream and withdrawn as a first product stream; and the scrubbing liquid streams are finally subjected to a separation of the more soluble components as well as of residual proportions of the less soluble components, thus obtaining a second product gas, the improvement which comprises further expanding the scrubbing liquid streams to obtain a gaseous fraction prior to the separation serving for obtaining the second product gas, recompressing the thus-liberated, gaseous fraction and scrubbing the recompressed gaseous fraction with the second scrubbing liquid stream.

Abstract translation: 在通过用待分离的至少一种待分离的物质洗涤液体洗涤的物理洗涤液中分离并获得作为产物气体至少两种气态组分的方法，其中至少两种 这些组分，其中装载有待分离的所有组分的第一洗涤液体流和仅含有较少可溶性组分或组分的比例的第二洗涤液体流从洗涤阶段中排出; 通过第一洗涤液体流的膨胀释放出气态馏分，通过用第二同样膨胀的洗涤液流处理并且作为第一产物流排出，从而消除更可溶的组分或组分。 并且洗涤液体流最终经受较可溶组分的分离以及较不溶性组分的残留比例的分离，从而获得第二产物气体，其改进包括进一步扩大洗涤液体流以获得气体馏分 在用于获得第二产物气体的分离之前，将由此释放的气态馏分重新压缩并用第二洗涤液体流洗涤再压缩的气体馏分。