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公开(公告)号：US20150184932A1
公开(公告)日：2015-07-02
申请号：US14143781
申请日：2013-12-30
IPC分类号： F25J3/08
CPC分类号： F25J3/08 , B01D3/143 , C10G5/06 , C10G7/00 , C10G70/041 , E21B43/164 , E21B43/40 , F25J3/0209 , F25J3/0242 , F25J3/0266 , F25J2200/02 , F25J2200/04 , F25J2200/30 , F25J2200/50 , F25J2200/72 , F25J2200/74 , F25J2200/76 , F25J2205/50 , F25J2215/02 , F25J2220/84 , F25J2260/60 , F25J2260/80 , F25J2270/12 , F25J2270/60 , F25J2270/88 , Y02C10/12 , Y02P90/70
摘要： The power required to recover C3+ hydrocarbons from crude carbon dioxide comprising C1+ hydrocarbons and hydrogen sulfide may be reduced by distilling the crude carbon dioxide to produce carbon dioxide-enriched overhead vapor and C3+ hydrocarbon-enriched bottoms liquid such that the hydrogen sulfide is rejected with the overhead vapor. Power consumption reductions may be achieved by incorporating a heat pump cycle using carbon dioxide vapor as working fluid to provide at least a part of the refrigeration duty and using a side reboiler to reduce the bottom reboiler duty. Where the bottoms liquid is further processed to produce “lighter” and “heavier” hydrocarbon fractions, the process enables optimization of upgrading crude oil on the basis of API gravity, Reid Vapor pressure and/or viscosity.
摘要翻译： 通过蒸馏粗二氧化碳以产生富含二氧化碳的塔顶蒸气和C3 +烃富集的塔底液，可以减少从包含C1 +烃和硫化氢的粗二氧化碳中回收C3 +烃所需的功率，从而使硫化氢与 塔顶蒸气。 可以通过将使用二氧化碳蒸气作为工作流体的热泵循环结合以提供至少一部分制冷功能并使用侧再沸器来减少底部再沸器的负荷来实现功率消耗降低。 当底部液体被进一步加工以产生“较轻”和“较重”的烃馏分时，该方法能够根据API重力，Reid蒸气压力和/或粘度优化升级原油。
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公开(公告)号：US11453950B1
公开(公告)日：2022-09-27
申请号：US17201337
申请日：2021-03-15
摘要： A method for supplying hydrogen gas for consumption in at least one downstream process, the method comprising: electrolysing water to provide hydrogen gas; compressing the hydrogen gas in a multistage compression system to provide compressed hydrogen gas; and feeding at least a portion of the compressed hydrogen gas to the downstream process(es); wherein the multistage compression system comprises at least one centrifugal compression stage; wherein the hydrogen gas is dosed with nitrogen gas upstream of the centrifugal compression stage(s); and wherein the nitrogen gas is present in the compressed hydrogen gas when fed to the downstream process(es).
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公开(公告)号：US20200088465A1
公开(公告)日：2020-03-19
申请号：US16130198
申请日：2018-09-13
发明人： Vincent White , Paul Higginbotham
IPC分类号： F25J3/02
摘要： A crude helium stream is recovered from a natural gas feed by distillation. Refrigeration from expanding a portion of the bottoms liquid is used to partially condense the helium-enriched overhead vapor and generate a crude helium vapor and a helium-containing liquid stream that is recycled to the distillation column to maximize helium recovery. The helium-depleted natural gas stream can be returned at pressure for utilization or transportation.
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公开(公告)号：US20150114034A1
公开(公告)日：2015-04-30
申请号：US14063067
申请日：2013-10-25
IPC分类号： F25J3/08
CPC分类号： F25J3/08 , B01D53/002 , B01D53/75 , B01D2257/302 , B01D2257/304 , B01D2257/306 , B01D2257/308 , B01D2257/404 , B01D2257/406 , B01D2257/7022 , C01B17/167 , C01B32/50 , F25J2200/02 , F25J2200/04 , F25J2200/40 , F25J2200/50 , F25J2200/74 , F25J2200/76 , F25J2200/78 , F25J2205/02 , F25J2215/80 , F25J2220/82 , F25J2220/84 , F25J2230/80 , F25J2235/02 , F25J2235/80 , F25J2240/40 , F25J2245/02 , F25J2260/20 , F25J2260/80 , F25J2270/02 , F25J2270/80 , F25J2270/88 , F25J2290/40 , Y02P20/129 , Y02P20/152
摘要： In a process for separating “heavy” impurities such as hydrogen sulfide from crude carbon dioxide comprising significant quantities of “light” impurities such as non-condensable gases, involving at least one heat pump cycle using as working fluid a fluid from the “heavy” impurity separation, the “light” impurities are removed from carbon dioxide-enriched gas generated in the “heavy” impurity separation. The carbon dioxide-enriched gas, or a compressed carbon dioxide-enriched gas produced therefrom, is at least partially condensed by indirect heat exchange against intermediate liquid also generated in the “heavy” impurity separation. Total and specific energy consumption is reduced compared to conventional processes in which “light” impurities are removed from carbon dioxide product gas.
摘要翻译： 在从包含大量“轻”杂质如不可冷凝气体的粗二氧化碳中分离“重”杂质如硫化氢的方法中，涉及使用作为工作流体的至少一个热泵循环，来自“重” 杂质分离，从“重”杂质分离产生的富含二氧化碳的气体中除去“轻”杂质。 由二氧化碳富集的气体或由其产生的压缩的富含二氧化碳的气体通过与在“重”杂质分离中也产生的中间体液体的间接热交换至少部分地冷凝。 与从二氧化碳产品气体中除去“轻”杂质的常规方法相比，总的和比能量消耗降低。
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公开(公告)号：US10962283B2
公开(公告)日：2021-03-30
申请号：US16130260
申请日：2018-09-13
摘要： A helium-containing stream is recovered from a natural gas feed using a membrane followed by multiple distillation steps. Refrigeration is provided by expanding a bottoms liquid with a higher nitrogen content than the feed, achieving a lower temperature in the process. The helium-enriched vapor is then purified and the helium-containing waste stream is recycled to maximize recovery and reduce the number of compressors needed. The helium-depleted natural gas stream can be returned at pressure for utilization or transportation.
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公开(公告)号：US20200088466A1
公开(公告)日：2020-03-19
申请号：US16130260
申请日：2018-09-13
摘要： A helium-containing stream is recovered from a natural gas feed using a membrane followed by multiple distillation steps. Refrigeration is provided by expanding a bottoms liquid with a higher nitrogen content than the feed, achieving a lower temperature in the process. The helium-enriched vapor is then purified and the helium-containing waste stream is recycled to maximize recovery and reduce the number of compressors needed. The helium-depleted natural gas stream can be returned at pressure for utilization or transportation.
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公开(公告)号：US10215488B2
公开(公告)日：2019-02-26
申请号：US15041359
申请日：2016-02-11
摘要： Helium can be recovered from nitrogen-rich natural gas at high pressure with low helium loss by cryogenic distillation of the natural gas after pre-treatment of the gas to remove incompatible impurities and then recovery of natural gas liquid (NGL) from the pre-treated gas by distillation. Overall power consumption may be reduced, particularly if the feed to the helium recovery column system is at least substantially condensed by indirect heat exchange against a first portion of nitrogen-enriched bottoms liquid at first pressure, and a second portion of nitrogen-enriched bottoms liquid at a second pressure that is different from the first pressure.
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公开(公告)号：US20170234611A1
公开(公告)日：2017-08-17
申请号：US15041305
申请日：2016-02-11
IPC分类号： F25J3/02
CPC分类号： F25J3/029 , F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J3/0257 , F25J3/08 , F25J2200/02 , F25J2200/04 , F25J2200/08 , F25J2200/10 , F25J2200/40 , F25J2200/50 , F25J2200/70 , F25J2200/72 , F25J2200/74 , F25J2205/04 , F25J2205/40 , F25J2205/64 , F25J2210/04 , F25J2210/06 , F25J2215/04 , F25J2235/42 , F25J2235/60 , F25J2240/02 , F25J2245/02 , F25J2250/20 , F25J2260/20 , F25J2260/44 , F25J2270/02 , F25J2270/04 , F25J2290/34
摘要： Overall power consumption in a cryogenic distillation process for recovering helium from nitrogen-rich gases comprising helium may be reduced if the feed to the distillation column system is at least substantially condensed by indirect heat exchange against a first bottoms liquid at first pressure, and a second bottoms liquid at a second pressure that is different from the first pressure.
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公开(公告)号：US20220290691A1
公开(公告)日：2022-09-15
申请号：US17201399
申请日：2021-03-15
摘要： A process for producing compressed hydrogen gas including: electrolysing water to produce hydrogen gas, and compressing the hydrogen gas in a multistage compression system including: a centrifugal compression stage and a recycle system for recycling a portion of the hydrogen gas from a product end to a feed end of the centrifugal compression stage; wherein hydrogen gas feed is fed to the feed end at a pre-determined feed temperature and pressure and mole fraction of water; wherein a portion of the hydrogen gas is removed from the product end, reduced in pressure in the recycle system to the pre-determined feed pressure and is then recycled to form at least part of the hydrogen gas feed to the centrifugal compression stage; and further including cooling hydrogen gas comprising the reduced pressure hydrogen gas such that the water mole fraction in the hydrogen gas feed is at the pre-determined water mole fraction.
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公开(公告)号：US10267560B2
公开(公告)日：2019-04-23
申请号：US14143781
申请日：2013-12-30
IPC分类号： F25J3/00 , F25J3/02 , F25J3/08 , E21B43/16 , E21B43/40 , C10G70/04 , C10G7/00 , B01D3/14 , C10G5/06
摘要： The power required to recover C3+ hydrocarbons from crude carbon dioxide comprising C1+ hydrocarbons and hydrogen sulfide may be reduced by distilling the crude carbon dioxide to produce carbon dioxide-enriched overhead vapor and C3+ hydrocarbon-enriched bottoms liquid such that the hydrogen sulfide is rejected with the overhead vapor. Power consumption reductions may be achieved by incorporating a heat pump cycle using carbon dioxide vapor as working fluid to provide at least a part of the refrigeration duty and using a side reboiler to reduce the bottom reboiler duty. Where the bottoms liquid is further processed to produce “lighter” and “heavier” hydrocarbon fractions, the process enables optimization of upgrading crude oil on the basis of API gravity, Reid Vapor pressure and/or viscosity.
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