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公开(公告)号：US4504295A
公开(公告)日：1985-03-12
申请号：US499954
申请日：1983-06-01
CPC分类号： F25J3/0257 , C07C7/04 , F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J2200/04 , F25J2200/40 , F25J2200/50 , F25J2200/70 , F25J2200/72 , F25J2205/04 , F25J2235/60 , F25J2240/02 , F25J2270/04 , F25J2270/12 , F25J2270/14 , F25J2270/60 , F25J2270/66 , F25J2280/02 , Y02B30/52 , Y02P20/124 , Y10S62/927
摘要： A process is set forth for the recovery of methane, nitrogen and natural gas liquids (C.sub.2+) from a natural gas feed stream wherein the recovery can be made at high pressure by the integration of a nitrogen rejection stage including a heat pump driven distillation column and a natural gas liquids stage. Nitrogen can be rejected over a wide range of nitrogen concentration (approximately 1 to about 80%) of the feed stream.
摘要翻译： 阐述了从天然气进料流中回收甲烷，氮气和天然气液体（C2 +）的方法，其中可以通过将包括热泵驱动的蒸馏塔在内的氮排放阶段和 天然气液体阶段。 可以在进料流的大范围氮浓度（约1至约80％）内排除氮气。
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公开(公告)号：US5011670A
公开(公告)日：1991-04-30
申请号：US320206
申请日：1989-03-07
CPC分类号： C01B3/38 , C09C1/50 , C01P2006/80 , Y02P20/129
摘要： Carbon black is produced from a pyrolyzed hydrocarbon wherein pyrolysis is effected by combusting a synthesis gas containing hydrogen and carbon monoxide. The synthesis gas is produced from reforming a hydrocarbon fuel, wherein the reformation is heated by combusting carbon black effluent tail gas or indirect heat exchange of the hot tail gas.
摘要翻译： 碳黑由热解碳氢化合物生产，其中通过燃烧含氢和一氧化碳的合成气进行热分解。 合成气由碳氢化合物燃料的重整产生，其中通过燃烧炭黑流出物尾气或热尾气的间接热交换来加热重整。
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公开(公告)号：US08664459B2
公开(公告)日：2014-03-04
申请号：US12264443
申请日：2008-11-04
IPC分类号： C07C5/02
摘要： A process for hydrogenating olefins is disclosed. The olefins are present in a feed gas which includes H2 and one or more sulfur compounds. The sulfur compounds may include H2S and organic sulfur compounds. The feed gas is passed through a reactor at an inlet temperature from 100° C. to 250° C. The reactor contains a catalyst which is active at the inlet temperature. The reactor may be adiabatic. Saturated hydrocarbons are formed from the olefins. A temperature gradient may be formed in the reactor due to the exothermic nature of the hydrogenation reaction, causing the temperature to increase downstream in the reactor. At temperatures higher than the inlet temperature, H2S may be formed from organic sulfur compounds. A gas mixture including saturated hydrocarbons, H2S and H2 exits the reactor and may be brought into contact with a chemical adsorbent which removes the H2S. The gas stream may then be passed to a steam methane reformer.
摘要翻译： 公开了一种氢化烯烃的方法。 烯烃存在于包含H 2和一种或多种硫化合物的进料气体中。 硫化合物可以包括H 2 S和有机硫化合物。 进料气体在100℃至250℃的入口温度下通过反应器。反应器含有在入口温度下有活性的催化剂。 反应器可以是绝热的。 饱和烃由烯烃形成。 由于氢化反应的放热性质，可能在反应器中形成温度梯度，导致反应器下游的温度升高。 在高于入口温度的温度下，H2S可以由有机硫化合物形成。 包括饱和烃，H 2 S和H 2的气体混合物离开反应器并且可以与除去H 2 S的化学吸附剂接触。 然后可以将气流送入蒸汽甲烷重整器。
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公开(公告)号：US20090247800A1
公开(公告)日：2009-10-01
申请号：US12264443
申请日：2008-11-04
IPC分类号： C07C5/02
摘要： A process for hydrogenating olefins is disclosed. The olefins are present in a feed gas which includes H2 and one or more sulfur compounds. The sulfur compounds may include H2S and organic sulfur compounds. The feed gas is passed through a reactor at an inlet temperature from 100° C. to 250° C. The reactor contains a catalyst which is active at the inlet temperature. The reactor may be adiabatic. Saturated hydrocarbons are formed from the olefins. A temperature gradient may be formed in the reactor due to the exothermic nature of the hydrogenation reaction, causing the temperature to increase downstream in the reactor. At temperatures higher than the inlet temperature, H2S may be formed from organic sulfur compounds. A gas mixture including saturated hydrocarbons, H2S and H2 exits the reactor and may be brought into contact with a chemical adsorbent which removes the H2S. The gas stream may then be passed to a steam methane reformer.
摘要翻译： 公开了一种氢化烯烃的方法。 烯烃存在于包含H 2和一种或多种硫化合物的进料气体中。 硫化合物可以包括H 2 S和有机硫化合物。 进料气体在100℃至250℃的入口温度下通过反应器。反应器含有在入口温度下有活性的催化剂。 反应器可以是绝热的。 饱和烃由烯烃形成。 由于氢化反应的放热性质，可能在反应器中形成温度梯度，导致反应器下游的温度升高。 在高于入口温度的温度下，H2S可以由有机硫化合物形成。 包括饱和烃，H 2 S和H 2的气体混合物离开反应器并且可以与除去H 2 S的化学吸附剂接触。 然后可以将气流送入蒸汽甲烷重整器。
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公开(公告)号：US4857082A
公开(公告)日：1989-08-15
申请号：US244769
申请日：1988-09-15
CPC分类号： C01B23/00 , B01D53/22 , C01B3/501 , C01C1/0482 , C01B2203/0405 , C01B2203/0465 , C01B2203/047 , C01B2203/0475 , C01B2203/048 , Y02P20/52
摘要： A permeator system for separating at least one gaseous component from a feed gas mixture containing at least one other component using a semi-permeable membrane is disclosed which maintains high permeate product purity and desired component recovery during periods of turn-down in capacity. In accordance with the present invention, the permeator system contains a series of flow and pressure sensors and valves which regulate differential pressure across the membrane based upon permeate product demand or feed availability.
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公开(公告)号：US4732598A
公开(公告)日：1988-03-22
申请号：US929045
申请日：1986-11-10
申请人： Howard C. Rowles , Ruth A. Davis
发明人： Howard C. Rowles , Ruth A. Davis
CPC分类号： F25J3/0257 , C07C7/005 , F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J2200/04 , F25J2200/80 , F25J2235/60 , F25J2240/12 , F25J2270/04 , Y10S62/927
摘要： A process is disclosed for the rejection of nitrogen from natural gas with the optional recovery of natural gas liquids. The process of the present invention employs a dephlegmator which provides a high purity nitrogen reflux for a low pressure distillation column and provides subcooling of the feed and reflux to the low pressure column and reboiling of the low pressure column. The dephlegmator of the present invention combines the high pressure column and three heat exchangers of a conventional double column process into a single, compact unit, with corresponding reductions in interconnecting piping and capital investment.
摘要翻译： 公开了用于天然气排除氮气的方法，其中天然气液体可以任选回收。 本发明的方法使用分馏塔，其为低压蒸馏塔提供高纯氮回流，并将进料和回流过冷至低压塔和低压塔的再沸腾。 本发明的分凝器将高压塔和传统双塔工艺的三个热交换器组合成单个紧凑的单元，相应地减少了互连管道和资本投资。
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7.发明授权
公开(公告)号：US4662919A
公开(公告)日：1987-05-05
申请号：US831374
申请日：1986-02-20
申请人： Ruth A. Davis
发明人： Ruth A. Davis
CPC分类号： F25J3/0257 , C07C7/09 , F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J2200/02 , F25J2200/04 , F25J2200/40 , F25J2200/50 , F25J2200/72 , F25J2205/04 , F25J2210/06 , F25J2240/02 , F25J2240/12 , F25J2270/04 , F25J2270/12 , F25J2270/60 , Y10S62/927
摘要： The present invention is directed to a gas separation system for separating or rejecting nitrogen from a natural gas feed containing nitrogen, over a wide range of nitrogen concentrations, under elevated pressure using a single distillation column with two intermediate side condensers and a closed loop heat pump which reboils and partially refluxes the column. The lower of the intermediate condensers is cooled by heat exchange with the heat pump fluid and the overhead nitrogen fraction of the column. The upper of the intermediate condensers is cooled by heat exchange with the overhead nitrogen fraction of the column. The process can handle feeds with increasing nitrogen composition and more than 100 vppm carbon dioxide. The process provides a high methane recovery over the entire feed range, and provides a nitrogen product having an elevated pressure suitable for recycling and reinjection into an oil or gas well to maintain well head pressure.
摘要翻译： 本发明涉及一种气体分离系统，用于使用具有两个中间侧冷凝器和闭环热泵的单个蒸馏塔在高压下在宽范围的氮气浓度下从含有氮气的天然气进料中分离或排除氮气 其重新沸腾并部分地回流柱。 较低的中间冷凝器通过与热泵流体和塔的塔顶氮馏分的热交换来冷却。 中间冷凝器的上部通过与塔的顶部氮馏分进行热交换来冷却。 该方法可以处理饲料中增加氮的组成和超过100 vppm的二氧化碳。 该方法在整个进料范围内提供高的甲烷回收率，并且提供具有适于再循环和再注入油井或气井以提高油井压力的升高的压力的氮气产物。
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