公开(公告)号：US4881960A

公开(公告)日：1989-11-21

申请号：US188129

申请日：1988-04-25

Applicant: Gerhard Ranke ,  Elmar Diehl

Inventor： Gerhard Ranke ,  Elmar Diehl

IPC: C07C7/04 ,  F25J3/02

CPC classification number: F25J3/0266 ,  C07C7/04 ,  F25J3/0209 ,  F25J3/0233 ,  F25J3/0238 ,  F25J3/0242 ,  F25J2200/02 ,  F25J2200/94 ,  F25J2205/04 ,  F25J2205/50 ,  F25J2210/12 ,  F25J2245/02 ,  F25J2290/40 ,  Y02C10/12 ,  Y02P20/152 ,  Y10S62/929

Abstract: For the fractionation of a hydrocarbon mixture, e.g., natural gas rich in a C.sub.2+ fraction, the hydrocarbon mixture is partially condensed and the thus-produced gas/liquid mixture is separated in a distillation column to produce a gaseous overhead fraction containing lighter hydrocarbons and a liquid bottoms product containing heavier hydrocarbons. In the upper column section, the gas is scrubbed with a physical scrubbing agent which is preferably a part of the bottoms product. A gaseous stream is withdrawn from the middle of the column to give the C.sub.4+ bottoms product the proper composition for scrubbing purposes. The scrubbing agent is also subcooled to lower the vapor pressure, preferably by a cooler liquid withdrawn from the column.

Abstract translation: 为了分离烃混合物，例如富含C2 +级分的天然气，烃混合物被部分冷凝，并将如此产生的气体/液体混合物在蒸馏塔中分离以产生含有较轻烃的气态塔顶馏分和 含有较重碳氢化合物的液体底部产物。 在上段部分中，气体被物理洗涤剂洗涤，物理洗涤剂优选是底部产物的一部分。 从塔的中部排出气流，以使C4 +塔底产物成为洗涤目的的适当组合物。 洗涤剂也被过冷，以降低蒸气压，优选地通过从塔抽出的较冷的液体。

公开(公告)号：US4332596A

公开(公告)日：1982-06-01

申请号：US159311

申请日：1980-06-13

Applicant: Gerhard Ranke ,  Friedrich Siegert

Inventor： Gerhard Ranke ,  Friedrich Siegert

IPC: B01D53/48 ,  B01D53/14 ,  B01D53/18 ,  B01D53/52 ,  B01D53/77 ,  C10K1/16

CPC classification number: B01D53/1493 ,  B01D53/1468

Abstract: In the selective removal of sulfur compounds, e.g., H.sub.2 S, COS, from moist gaseous mixtures, comprising scrubbing the gaseous mixture in a column at a temperature below 0.degree. C., with toluene or xylene as the scrubbing liquid, and prior to the scrubbing stage, contacting the moist gaseous mixture with liquid methanol before the gaseous mixture is cooled to the scrubbing temperature, passing the scrubbing liquid containing absorbed sulfur compounds to a thermal regenerating column, and recycling resultant thermally regenerated scrubbing agent to the scrubbing stage, the improvement of maintaining a methanol concentration of above 2%, e.g. 3-8% to about 30% by weight in the scrubbing liquid to be recycled from the sump of the thermal regenerating column to the scrubbing column. This permits a lower reboiling temperature in the regenerating column so that low pressure steam can be used, among other advantages.

Abstract translation: 在从湿气体混合物中选择性地除去硫化合物，例如H 2 S，COS，包括在低于0℃的温度下用柱子洗涤气体混合物，用甲苯或二甲苯作为洗涤液，以及在洗涤之前 在将气体混合物冷却至洗涤温度之前将湿气体混合物与液体甲醇接触，将含有吸收的硫化合物的洗涤液体通入热再生塔，并将所得到的热再生洗涤剂再循环到洗涤阶段， 保持甲醇浓度超过2％，例如 在洗涤液中3-8％至约30％（重量）从热再生塔的贮槽再循环到洗涤塔。 这允许再生塔中的再沸腾温度较低，因此可以使用低压蒸汽等。

公开(公告)号：US4276057A

公开(公告)日：1981-06-30

申请号：US51359

申请日：1979-06-25

Applicant: Hans Becker ,  Peter Grimm ,  Gerhard Ranke ,  Dieter Roth

Inventor： Hans Becker ,  Peter Grimm ,  Gerhard Ranke ,  Dieter Roth

IPC: B01D53/14 ,  C07C7/00 ,  F25J3/02 ,  B01D19/00

CPC classification number: C07C7/005 ,  B01D53/1462 ,  F25J3/0209 ,  F25J3/0219 ,  F25J3/0233 ,  F25J3/0242 ,  F25J3/0266 ,  F25J2200/08 ,  F25J2205/04 ,  F25J2205/50 ,  F25J2210/12 ,  F25J2210/14 ,  F25J2220/66 ,  F25J2230/08 ,  F25J2230/60 ,  F25J2235/60 ,  F25J2245/02 ,  Y02C10/12 ,  Y02P20/152

Abstract: Process for treating a gaseous mixture under pressure to remove unwanted components from a gas, including methane, ethane, hydrogen, nitrogen, such components as C.sub.3, C.sub.4 and C.sub.5 higher hydrocarbons, hydrogen sulphide and carbon dioxide. The gaseous mixture is fractionated under pressure to remove in bottoms product portions of higher hydrocarbons, hydrogen sulphide and carbon dioxide. The overhead product is scrubbed to remove in a suitable solvent a substantial portion of or all of the remaining higher hydrocarbons, hydrogen sulphide and carbon dioxide.

Abstract translation: 在压力下处理气体混合物以从气体（包括甲烷，乙烷，氢气，氮气，诸如C3，C4和C5高级烃，硫化氢和二氧化碳等组分）中除去不想要的组分的方法。 将气体混合物在压力下分馏，以在塔底产物部分除去高级烃，硫化氢和二氧化碳。 洗涤塔顶产物以在合适的溶剂中除去大部分或全部剩余的高级烃，硫化氢和二氧化碳。

公开(公告)号：US4050909A

公开(公告)日：1977-09-27

申请号：US635041

申请日：1975-11-25

Applicant: Gerhard Ranke

Inventor： Gerhard Ranke

IPC: C01B3/12 ,  C01B3/48 ,  C01B3/50 ,  C01B3/52 ,  C01B32/50 ,  F25J3/02 ,  B01D53/00

CPC classification number: C01B3/506 ,  C01B2203/0475 ,  C01B2203/0485

Abstract: For the separation of substantially pure carbon dioxide and a gas enriched in hydrogen, said gases being especially suitable for the production of urea via an intermediate ammonia synthetic and reaction with CO.sub.4 a system is provided ofA. scrubbing a raw gas consisting essentially of carbon dioxide, hydrogen and hydrogen sulfide in a first scrubbing stage with a first fraction of partially loaded physical scrubbing agent, e.g., methanol, to obtain a partially scrubbed raw gas depleted in H.sub.2 S and a more loaded scrubbing agent;B. scrubbing said partially scrubbed raw gas in a second stage with physical scrubbing agent to obtain a further scrubbed raw gas enriched in hydrogen and said partially loaded physical scrubbing agent;C. subjecting said more loaded scrubbing agent to at least one (preferably two) pressure reducing stages to obtain a gaseous phase therefrom;D. subjecting a second fraction of said partially loaded scrubbing agent to at least one pressure-reducing stage to obtain reduced pressure liquid phase substantially free of hydrogen sulfide; andE. scrubbing said gaseous phase of step (c) with at least a fraction of liquid phase of step (d) to obtain a scrubbed substantially pure carbon dioxide and hydrogen sulfide.

Abstract translation: 为了分离基本上纯的二氧化碳和富含氢气的气体，所述气体特别适合于通过中间体氨合成生产尿素并与CO 4反应，系统提供A.一种基于二氧化碳的原料气 ，硫化氢和氢硫化物，其中第一部分是部分装载的物理硫化剂，EG，甲醇，得到部分硫化氢气体，并且装有更多的洗涤剂; B.在第二阶段中使用物理洗涤剂将部分洗涤的原料气体吸收在氢和部分装载的物理洗涤剂中获得进一步的硫化气体; C.采取更多的装载清洁剂至少一个（优选两个）压力减少阶段获得一个恶劣的相位; D.将第二部分的部分装载的硫化剂给予至少一个减压阶段，以获得降低液压液相，实质上不含氢硫化物; 和（E）的步骤（C）的气相阶段（C）至少具有步骤（D）的液相的分离，以获得可洗涤的大量二氧化碳和氢硫化物。