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81. 发明授权

US5137558A Liquefied natural gas refrigeration transfer to a cryogenics air separation unit using high presure nitrogen stream 失效
标题翻译：液化天然气制冷转移到使用高压氮气流的低温空气分离装置
公开(公告)号：US5137558A
公开(公告)日：1992-08-11
申请号：US691930
申请日：1991-04-26
申请人： Rakesh Agrawal
发明人： Rakesh Agrawal
IPC分类号： F25J3/04 , F17C9/04 , F25J1/00 , F25J1/02
CPC分类号： F25J3/04224 , F17C9/04 , F25J1/0015 , F25J1/004 , F25J1/0042 , F25J1/0224 , F25J1/0234 , F25J1/0292 , F25J3/04024 , F25J3/04054 , F25J3/0406 , F25J3/04193 , F25J3/04266 , F25J3/04351 , F25J3/04387 , F17C2221/033 , F17C2223/0161 , F17C2223/033 , F17C2225/0123 , F17C2227/0309 , F17C2265/05 , F25J2210/62 , F25J2230/08 , F25J2230/42 , F25J2240/12 , F25J2245/90
摘要： The present invention relates to a process for the liquefaction of a nitrogen stream produced by separating air components using the combination of cryogenic distillation with improved refrigeration. Very cold liquid natural gas (LNG) is employed as refrigerant, with the LNG concurrently being revaporized for transportation. The requisite circulating liquid is produced by compressing the nitrogen feed streams in a multi-stage compressor, wherein the interstage cooling is provided by heat exchange against the part of the recirculating nitrogen stream yielding a high pressure nitrogen stream. The resulting nitrogen, having a pressure greater than that of the LNG refrigerant, is then used as the circulating fluid to transfer refrigeration from the LNG to other low pressure nitrogen feed streams prior to their cold compression. Also, high pressure nitrogen is used as circulating fluid to transfer refrigeration to precool feed air to cryogenic temperatures prior to its compression in an air separation unit. A portion of the high pressure nitrogen is condensed against vaporizing LNG, followed by reducing the pressure of the condensed, high pressure nitrogen stream, producing a two phase nitrogen stream, which is phase separated into a liquid nitrogen product.
摘要翻译：本发明涉及通过使用低温蒸馏与改进的冷藏的组合分离空气组分而产生的氮气流的液化方法。采用非常冷的液态天然气（LNG）作为制冷剂，LNG同时被蒸发运输。所需的循环液体是通过在多级压缩机中压缩氮气进料流而产生的，其中级间冷却通过与产生高压氮气流的再循环氮气流的一部分进行热交换而提供。然后将所得到的氮气压力大于LNG制冷剂的氮气作为循环流体，在冷压缩之前将其从LNG转移到其他低压氮气进料流。此外，高压氮气用作循环流体，以在空气分离单元中压缩之前将制冷转移到预冷进料空气至低温。一部分高压氮气与蒸发的LNG冷凝，随后降低冷凝的高压氮气流的压力，产生相分离成液氮产物的两相氮气流。

82. 发明授权

US5110569A Low temperature purification of gases 失效
标题翻译：低温气体净化
公开(公告)号：US5110569A
公开(公告)日：1992-05-05
申请号：US467673
申请日：1990-01-19
申请人： Ravi Jain
发明人： Ravi Jain
IPC分类号： B01D53/04 , B01D53/26 , B01D53/86 , B01J23/44 , B01J23/86 , C01B21/04 , F25J3/04
CPC分类号： F25J3/04296 , B01D53/04 , B01D53/864 , C01B21/0494 , F25J3/04163 , F25J3/04169 , F25J3/044 , B01D2253/104 , B01D2253/106 , B01D2253/108 , B01D2253/112 , B01D2256/10 , B01D2257/504 , B01D2257/80 , B01D2259/40086 , B01D2259/402 , B01D2259/4146 , B01D2259/416 , B01D53/0462 , B01D53/047 , C01B2210/0006 , C01B2210/0014 , C01B2210/005 , C01B2210/0053 , F25J2205/82 , F25J2215/44 , F25J2230/42 , Y02C10/08 , Y02P20/152
摘要： A process for removing the impurities carbon monoxide, carbon dioxide, water vapor and, optionally, hydrogen from a feed stream comprising initially removing water and carbon dioxide, oxidizing carbon monoxide and hydrogen to form carbon dioxide and water vapor, respectively, and removing the oxidation products. The process may be conducted batchwise or continuously by carrying out purification in a plurality of treatment zones wherein one or more zones are being regenerated while one or more others are purifying the feed stream.

83. 发明授权

US5100446A Crude neon production system 失效
标题翻译：粗氖生产系统
公开(公告)号：US5100446A
公开(公告)日：1992-03-31
申请号：US637688
申请日：1991-01-07
申请人： Michael W. Wisz
发明人： Michael W. Wisz
IPC分类号： B01D53/04 , F25J3/04
CPC分类号： F25J3/04412 , F25J3/04642 , F25J2200/32 , F25J2200/50 , F25J2205/40 , F25J2205/60 , F25J2210/04 , F25J2215/32 , F25J2230/42 , F25J2245/42 , Y10S62/923
摘要： A crude neon production system wherein a small neon-containing stream is taken from a cryogenic air separation plant and processed in a neon column and in a non-cryogenic pressure swing adsorption system to produce crude neon and wherein tail gas from the pressure swing adsorption is recycled back into the air separation plant.
摘要翻译：一种粗氖生产系统，其中从低温空气分离设备获取小氖流，并在氖柱和非低温变压吸附系统中处理以产生粗氖，并且其中来自变压吸附的尾气为再循环回空分设备。

84. 发明授权

US4647299A Process to produce an oxygen-free krypton-xenon concentrate 失效
标题翻译：生产无氧氪 - 氙浓缩物的方法
公开(公告)号：US4647299A
公开(公告)日：1987-03-03
申请号：US641220
申请日：1984-08-16
申请人： Harry Cheung
发明人： Harry Cheung
IPC分类号： F25J3/04
CPC分类号： F25J3/04745 , F25J2200/32 , F25J2200/34 , F25J2205/30 , F25J2210/42 , F25J2230/42 , Y10S62/925
摘要： A method to concentrate krypton and xenon in a substantially oxygen-free liquid employing a two-section exchange column, the top section of which is refluxed by a substantially rare gas-free liquid.
摘要翻译：将氪和氙浓缩在基本上不含氧的液体中的方法，其采用两部分交换柱，其顶部部分由基本上无气体的液体回流。

85. 发明授权

US3989478A Producing gaseous fuels of high calorific value 失效
标题翻译：生产高热值气态燃料
公开(公告)号：US3989478A
公开(公告)日：1976-11-02
申请号：US669886
申请日：1976-03-24
申请人： James Kevin Jones
发明人： James Kevin Jones
IPC分类号： B01D53/00 , C07C7/00 , F25J3/02 , C10J1/00
CPC分类号： F25J3/0257 , B01D53/002 , C07C7/00 , F25J3/0209 , F25J3/0233 , F25J2200/02 , F25J2200/70 , F25J2205/66 , F25J2210/40 , F25J2215/40 , F25J2230/22 , F25J2230/30 , F25J2230/42 , F25J2230/60 , F25J2235/60 , F25J2240/80 , Y02P20/152
摘要： Process for upgrading an air-contaminated methane composition such as is found near coal measures comprises condensing this gas, and thereafter fractionating it to yield a first product having a methane content higher than that of the initial composition and a calorific value commensurate with that of natural gas, and a second product having a methane content below that of the initial composition but above the highest limit of the flammability range for methane-air mixtures under the conditions of temperature and pressure prevailing in the process.
摘要翻译：用于升级空气污染的甲烷组合物的方法，例如在煤质附近发现的甲烷组合物包括冷凝该气体，然后分馏，以产生甲烷含量高于初始组成的第一产物，并且与天然气相当的热值气体和第二产物，其甲烷含量低于初始组成的甲烷含量，但高于甲烷 - 空气混合物的可燃性范围的最高限度，在该方法中的温度和压力的条件下。

86. 发明授权

US3756035A Separation of the components of gas mixtures and air 失效
标题翻译：气体混合物和空气的组分分离
公开(公告)号：US3756035A
公开(公告)日：1973-09-04
申请号：US3756035D
申请日：1970-08-14
申请人： MC DONNELL DOUGLAS CORP
发明人： YEAROUT J
IPC分类号： F25J3/02 , F25J3/04 , F25J5/00
CPC分类号： F25J3/04715 , F25J3/0406 , F25J3/0409 , F25J3/04278 , F25J3/04309 , F25J3/04351 , F25J3/0463 , F25J2200/04 , F25J2200/08 , F25J2230/42 , F25J2240/46 , F25J2245/42 , F25J2270/02 , F25J2270/60 , F25J2270/90
摘要： This invention is directed to an efficient system for separating particularly oxygen and nitrogen from air, which involves, according to one embodiment, separating air in an initial separation stage to produce cold nitrogen vapor and an oxygenrich liquid, feeding the oxygen-rich liquid to a second separation stage or fractionating column in heat exchange relation with the initial separation stage, compressing the cold nitrogen and passing it into heat exchange relation with the lower portion of said fractionating column for addition of heat thereto, cooling the exiting nitrogen and passing such cooled nitrogen in heat exchange relation with the upper portion of said column for removal of heat therefrom, an external refrigerant medium also being employed in the upper portion of said column to provide additional refrigeration, said nitrogen and external refrigerant being passed through said column under conditions to affect a ''''differential'''' distillation in the column.
摘要翻译：本发明涉及一种用于从空气中特别分离氧和氮的有效系统，其根据一个实施方案涉及在初始分离阶段中分离空气以产生冷氮气蒸气和富氧液体，将富氧液体到与初始分离阶段热交换关系的第二分离阶段或分馏塔，压缩冷氮并使其与所述分馏塔的下部进行热交换，以加热，冷却出口的氮气并通过冷却氮气与所述塔的上部热交换以除去热量，外部制冷剂介质也用于所述塔的上部以提供额外的制冷，所述氮气和外部制冷剂在条件下通过所述塔影响柱中的“差”蒸馏。

87. 发明授权

US3563046A Air separatiin process 失效
标题翻译：空气分离法
公开(公告)号：US3563046A
公开(公告)日：1971-02-16
申请号：US3563046D
申请日：1968-01-05
申请人： HYDROCARBON RESEARCH INC
发明人： BAUSCH EDWARD HAROLD VAN
IPC分类号： F25J3/04 , F25J3/02 , F25J5/00
CPC分类号： F25J3/04309 , F25J3/04224 , F25J3/04412 , F25J2230/42 , F25J2245/42
摘要： AN IMPROVED AIR SEPARATION PROCESS WHEREIN AIR IS COMPRESSED, COOLED BY HEAT EXCHANGE WITH COLD EFFLUENT GASES FROM A LOW PRESSURE DISTILLATION TOWER AND THEN FRACTIONATED IN A HIGH PRESSURE DISTILLATION TOWER, THE CONDENSATION OF THE VAPORS FROM THE HIGH PRESSURE TOWER BEING USED TO SUPPLY THE HEAT TO THE LOW PRESSUE TOWER AND WHEREIN REFRIGERATION IS OBTAINED FOR THE SYSTEM BY REMOVING A VAPOR OVERHEAD STREAM FROM THE HIGH PRESSURE TOWER, WARMING, COMPRESSING, REMOVING THE HEAT OF COMPRESSION, AND SUBCOOLING THE STREAM BY HEAT EXCHANGE WITH THE UNCOMPRESSED PORTION OF THE STREAM AND THEN PASSING THE STREAM THROUGH AN EXPANDER DOING WORK.

88. 发明授权

US3183677A Liquefaction of nitrogen in regasification of liquid methane 失效
标题翻译：氮气在液化甲烷再气化中的液化
公开(公告)号：US3183677A
公开(公告)日：1965-05-18
申请号：US3664360
申请日：1960-06-16
申请人： CONCH INT METHANE LTD
发明人： HADI HASHEMI-TAFRESHI
IPC分类号： F17C9/04 , F25J1/02 , F25J3/04
CPC分类号： F25J3/044 , F17C9/04 , F17C2265/05 , F25J1/0015 , F25J1/0221 , F25J3/0406 , F25J3/04224 , F25J3/04266 , F25J3/04351 , F25J2200/76 , F25J2210/62 , F25J2230/04 , F25J2230/08 , F25J2230/42 , F25J2230/60 , F25J2235/60 , F25J2240/90

89. 发明授权

US3102801A Low temperature process 失效
标题翻译：低温过程
公开(公告)号：US3102801A
公开(公告)日：1963-09-03
申请号：US63610857
申请日：1957-01-24
申请人： AIR PROD & CHEM
发明人： FETTERMAN JAY V
IPC分类号： F25J3/04 , F25J5/00
CPC分类号： F25J3/04296 , F25J3/0409 , F25J3/04193 , F25J3/04224 , F25J3/04412 , F25J3/04884 , F25J2200/52 , F25J2205/24 , F25J2230/42 , F25J2245/40 , F25J2245/42 , F25J2250/40 , F25J2250/42

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