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公开(公告)号：US5314671A
公开(公告)日：1994-05-24
申请号：US816221
申请日：1992-01-03
CPC分类号： B01D53/1468
摘要： Process for removing hydrogen sulfide at low concentration in a gas containing water vapor. The gas is cooled to a temperature below the dew point of water, which condenses and separates the water. The dry gas is scrubbed free of hydrogen sulfide by an H.sub.2 S-absorbent solvent forming a purified gas. The purified gas is contacted and rehydrated with heated water so that the water content as water vapor corresponds to a mass flow rate of water substantially equal to the mass flow rate of the water present in the H.sub.2 S-containing gas before cooling. An apparatus for carrying out the process is disclosed.
摘要翻译： 在含有水蒸气的气体中除去低浓度的硫化氢的方法。 将气体冷却至低于水的露点的温度，其冷凝并分离水。 通过形成纯化气体的H 2 S吸收剂溶剂将干燥气体除去硫化氢。 纯化的气体与加热水接触并再水化，使得作为水蒸气的水含量对应于基本上等于冷却前存在于含H2S的气体中的水的质量流量的质量流量。 公开了一种用于执行该过程的装置。
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2.发明授权Steps in a process for the production of at least one alkyl tertiobutyl ether from natural gas 失效从天然气生产至少一种烷基叔丁基醚的方法中的步骤
公开(公告)号：US5659090A
公开(公告)日：1997-08-19
申请号：US545533
申请日：1995-10-19
申请人： Charles Cameron , Patrick Chaumette , Quang Dang Vu , Jacques Bousquet , Jacques Tournier-Lasserve , Guy Desgrandchamps
发明人： Charles Cameron , Patrick Chaumette , Quang Dang Vu , Jacques Bousquet , Jacques Tournier-Lasserve , Guy Desgrandchamps
摘要： The invention concerns steps in a process for the synthesis of at least one alkyl tertiobutyl ether, preferably respectively MTBE or ETBE, from at least one alcohol and from isobutene, each synthesized at least partially from natural gas. The alcohol, preferably methanol or ethanol respectively, is synthesized at least partially from synthesis gas, a portion of said synthesis gas being prepared in a natural gas steam prereforming zone. The isobutene is synthesized in a series of processes which includes direct transformation of natural gas to ethylene, known as oxidative coupling of methane (OCM), dimerisation of ethylene to normal butene, isomerisation of n-butene to isobutene, and the separation units associated therewith.
摘要翻译： 本发明涉及从至少一种醇和异丁烯合成至少一种烷基叔丁基醚，优选分别为MTBE或ETBE的方法中的步骤，每一种至少部分由天然气合成。 醇，优选甲醇或乙醇分别由合成气至少部分合成，所述合成气的一部分在天然气蒸汽预成形区中制备。 在一系列方法中合成异丁烯，这些方法包括将天然气直接转化为乙烯，称为甲烷（OCM）的氧化偶联，乙烯二聚成正丁烯，正丁烯异构化成异丁烯，以及与之相关的分离单元 。
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3.发明授权
公开(公告)号：US5645692A
公开(公告)日：1997-07-08
申请号：US406908
申请日：1995-06-26
摘要： A method and apparatus for stabilizing crude oil at the outlet of a well, including at least one separation step wherein the crude oil is pressure distilled in at least one distillation column into at least two cuts, i.e., a C.sub.1-5 hydrocarbon gas cut recovered at the top of the column and a stabilized crude oil cut recovered below the point where the original crude oil was injected into the column. The method advantageously includes at least one decompression step before the separation step.
摘要翻译： PCT No.PCT / FR94 / 00950 Sec。 371日期：1995年6月26日 102（e）日期1995年6月26日PCT提交1994年7月28日PCT公布。 公开号WO95 / 04116 日期1995年2月9日一种用于在井的出口处稳定原油的方法和装置，包括至少一个分离步骤，其中将原油在至少一个蒸馏塔中压力蒸馏成至少两个馏分，即C1- 在柱顶部回收的5个烃气馏分和稳定的原油馏分回收到原始原油注入塔的点以下。 该方法有利地包括在分离步骤之前的至少一个减压步骤。
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公开(公告)号：US5133949A
公开(公告)日：1992-07-28
申请号：US465067
申请日：1990-01-19
CPC分类号： B01D53/1468 , C01B17/167
摘要： Process for removing hydrogen sulfide at low concentration in a gas containing water vapor. The gas is cooled to a temperature below the dew point of water, which condenses and separates the water. The dry gas is scrubbed free of hydrogen sulfide by an H.sub.2 S-absorbent solvent forming a purified gas. The purified gas is contacted and rehydrated with heated water so that the water content as water vapor corresponds to a mass flow rate of water substantially equal to the mass flow rate of the water present in the H.sub.2 S-containing gas before cooling. The condensed water circulates in a closed circuit to contact and rehydrate the purified gas, and then is cooled to the appropriate temperature for cooling the H.sub.2 S-containing gas. An apparatus, appropriate for carrying out the process is disclosed.
摘要翻译： PCT No.PCT / FR89 / 00240第 371 1990年1月19日第 102（e）日期1990年1月19日PCT提交1989年5月18日PCT公布。 出版物WO89 / 11326 日期为1989年11月30日。在含有水蒸气的气体中，低浓度除去硫化氢的方法。 将气体冷却至低于水的露点的温度，其冷凝并分离水。 通过形成纯化气体的H 2 S吸收剂溶剂将干燥气体除去硫化氢。 纯化的气体与加热水接触并再水化，使得作为水蒸气的水含量对应于基本上等于冷却前存在于含H2S的气体中的水的质量流量的质量流量。 冷凝水在闭合回路中循环以接触并再净化净化气体，然后冷却至合适的温度以冷却含H2S的气体。 公开了一种适于实施该方法的装置。
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公开(公告)号：US4699736A
公开(公告)日：1987-10-13
申请号：US429448
申请日：1982-09-30
IPC分类号： C07C309/80 , B01J10/00 , B01J19/00 , C07C20060101 , C07C67/00 , C07C301/00 , C07C303/02 , C07C309/00 , C07C317/04 , C07C143/70
CPC分类号： C07C309/00
摘要： Continuous manufacture of an alkane sulphonyl chloride by the action of chlorine on the dialkyl disulphide corresponding to the alkane, in the presence of water or an aqueous hydrochloric acid solution.Firstly, a fine emulsion of the dialkyl disulphide is prepared with water or with an aqueous hydrochloric acid solution, after which the emulsion is treated with chlorine under constant agitation.Preferably, separation of the alkane sulphonyl chloride formed is effected in two different zones, the second of which operates under reduced pressure.
摘要翻译： 通过氯在对应于烷烃的二烷基二硫化物上，在水或盐酸水溶液的存在下连续制备烷基磺酰氯。 首先，用水或盐酸水溶液制备二硫代二硫化物的细乳液，然后在恒定搅拌下用氯处理乳液。 优选地，形成的烷烃磺酰氯的分离在两个不同的区域中实现，其中第二个区域在减压下操作。
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