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公开(公告)号：US20240253982A1
公开(公告)日：2024-08-01
申请号：US18569464
申请日：2021-06-18
发明人： Vincent White , Andrew Shaw , Simon Craig Saloway
CPC分类号： C01B3/047 , C01B3/52 , C01B3/56 , C01B2203/0415 , C01B2203/043 , C01B2203/0495 , C01B2203/0811 , C01B2203/1294 , C01B2203/146 , C01B2203/148 , C01B2203/80
摘要： Reduction of the water content of ammonia used in an ammonia cracking process allows the use of water intolerant cracking catalysts. The water removal process can also be used to recover and recycle ammonia from the cracked gas.
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公开(公告)号：US20240166505A1
公开(公告)日：2024-05-23
申请号：US17990832
申请日：2022-11-21
CPC分类号： C01B3/047 , B01J8/0005 , B01J8/0415 , B01J8/062 , B01J2208/00176 , B01J2208/00274 , B01J2208/00283 , B01J2208/025 , B01J2208/065 , C01B2203/0277 , C01B2203/0811 , C01B2203/0866 , C01B2203/1058 , C01B2203/1064 , C01B2203/1205 , C01B2203/1258 , C01B2203/1294 , C01B2203/142 , C01B2203/1614 , C01B2203/1628
摘要： The present invention concerns a process for cracking ammonia comprising providing an ammonia-containing feed gas at a temperature of over 600° C. and a pressure in a range from about 5 bar to about 50 bar; combusting a fuel with an oxidant gas in a furnace to heat reactor tubes to achieve a maximum inner wall temperature of over 700° C. and produce a flue gas, each reactor tube comprising a catalyst bed comprising a first row transition metal-based catalyst; and feeding the ammonia-containing feed gas to the reactor tubes to produce a cracked gas at a temperature of over 600° C. on exit from the reactor tubes.
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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：US20230242395A1
公开(公告)日：2023-08-03
申请号：US18010971
申请日：2021-06-18
CPC分类号： C01B3/047 , B01D53/002 , B01D53/047 , B01D53/229 , B01J6/008 , C01B3/56 , C01B3/501 , B01D2256/16 , B01D2257/102 , B01D2257/406 , C01B2203/042 , C01B2203/84 , C01B2203/0405 , C01B2203/0465 , C01B2203/0833 , C01B2203/0883
摘要： Recovery of hydrogen from an ammonia cracking process in which the cracked gas is purified in a PSA device is improved by using a membrane separator on the PSA tail gas.
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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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公开(公告)号：US20150114033A1
公开(公告)日：2015-04-30
申请号：US14063047
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 , F25J3/0266 , F25J3/029 , F25J2200/04 , F25J2200/08 , F25J2200/10 , F25J2200/40 , F25J2200/50 , F25J2200/70 , F25J2200/74 , F25J2200/76 , F25J2200/78 , F25J2205/02 , F25J2205/30 , F25J2205/40 , F25J2205/80 , 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 , Y02B30/52 , Y02C10/12 , Y02P20/124 , Y02P20/129 , Y02P20/152
摘要： In a process for separating at least one “heavy” impurity such as hydrogen sulfide from crude carbon dioxide comprising significant quantities of at least one “light” impurity such as non-condensable gases, involving at least one heat pump cycle using carbon dioxide-containing fluid from the process as the working fluid, the “light” impurity is removed from the crude carbon dioxide and carbon dioxide is subsequently recovered from the removed “light” impurity, thereby improving overall carbon dioxide recovery and efficiency in terms of energy consumption.
摘要翻译： 在从包含大量至少一种“轻”杂质如不可冷凝气体的粗二氧化碳中分离至少一种“重”杂质如硫化氢的方法中，涉及使用含二氧化碳的至少一个热泵循环 作为工作流体的流体，从粗二氧化碳中除去“轻”杂质，随后从去除的“轻”杂质中回收二氧化碳，从而改善总体二氧化碳回收率和能量消耗方面的效率。
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公开(公告)号：US20240294376A1
公开(公告)日：2024-09-05
申请号：US18569741
申请日：2021-06-18
发明人： Andrew Shaw , Vincent White , Simon Craig Saloway
IPC分类号： C01B3/04 , B01D53/047 , C01B3/56
CPC分类号： C01B3/047 , B01D53/047 , C01B3/56 , B01D2256/16 , B01D2257/102 , B01D2257/406 , C01B2203/0277 , C01B2203/043 , C01B2203/0833
摘要： Ammonia cracking process in which cracked gas is purified in a PSA system are improved by converting residual ammonia in the first cracked gas into further hydrogen and nitrogen by feeding PSA tail gas, or a gas derived therefrom, to a secondary cracking reactor and further processing the second cracked gas.
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