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公开(公告)号：US20240219114A1
公开(公告)日：2024-07-04
申请号：US18177570
申请日：2023-03-02
IPC分类号： F25J3/02
CPC分类号： F25J3/0233 , F25J3/0209 , F25J2200/02 , F25J2210/06 , F25J2240/02 , F25J2250/20
摘要： Processing of a feed gas stream containing methane and natural gas liquids may comprise: cooling a first portion of the feed gas stream to obtain a cooled first portion; introducing the cooled first portion into a liquid-vapor separator to obtain a vapor stream and a liquid stream; splitting the vapor stream into a first portion and a second portion; sub-cooling the second portion of the vapor stream to obtain a liquefied vapor stream; introducing the liquefied vapor stream into a demethanizer column; introducing the first portion of the vapor stream to at least one of an expansion valve or a turboexpander; obtaining an expanded vapor stream from the expansion valve or an expansion side of the turboexpander; introducing the expanded vapor stream and at least a first portion of the liquid stream into the demethanizer column; and obtaining from the demethanizer column a bottoms stream rich in natural gas liquids.
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公开(公告)号：US20240027129A1
公开(公告)日：2024-01-25
申请号：US18190943
申请日：2023-03-27
申请人： CHEVRON U.S.A. INC.
CPC分类号： F25J3/0214 , C10G7/00 , C10G2300/1025 , F25J2220/60 , F25J2250/20 , C10G2300/205
摘要： The present invention is directed to a method for removing elemental mercury from liquid natural gas comprising changing the stabilizer column operating conditions to beneficially transfer mercury from the stabilized condensate phase to the overhead gas phase, where it may be compressed and recycled with the gas going to the existing feed gas mercury removal units.
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公开(公告)号：US20180320962A1
公开(公告)日：2018-11-08
申请号：US16032243
申请日：2018-07-11
申请人： Steven R. Falta , Brian S. Powell , Henry E. Howard , Vijayaraghavan S. Chakravarthy , Maulik R. Shelat
发明人： Steven R. Falta , Brian S. Powell , Henry E. Howard , Vijayaraghavan S. Chakravarthy , Maulik R. Shelat
CPC分类号： F25J3/04672 , F25J3/0285 , F25J3/04412 , F25J3/04678 , F25J3/04715 , F25J3/048 , F25J3/04848 , F25J2250/02 , F25J2250/20
摘要： An argon reflux condensation system and method in which a plurality of once-through heat exchangers are connected to an argon column of an air separation plant to condense argon-rich vapor streams for production of reflux to the argon column. Condensation of the argon-rich vapor streams is brought about through indirect heat exchange with crude liquid oxygen streams that partially vaporize and are introduced into a lower pressure column of the plant for further refinement. The flow rate of the crude liquid oxygen streams are sensed and controlled at locations in the plant where the crude liquid oxygen is in a liquid state and in proportion to the size of the once-through heat exchangers. Feed stream flow rate to the argon column is controlled in response to air flow rate to the plant and product flow rate is controlled in response to the feed stream flow rate to the argon column.
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公开(公告)号：US10018414B2
公开(公告)日：2018-07-10
申请号：US14815887
申请日：2015-07-31
发明人： Paul Musicus
CPC分类号： F25J3/04878 , F25J3/0406 , F25J3/04303 , F25J3/04309 , F25J3/04351 , F25J3/04393 , F25J3/04448 , F25J2215/54 , F25J2235/50 , F25J2240/46 , F25J2250/20
摘要： A method for the production of low pressure gaseous oxygen includes providing a system of distillation columns and a heat exchanger, wherein the system of columns comprises a lower pressure column, a higher pressure column, an auxiliary column, the auxiliary column having a distillation section, a first reboiler, and a second reboiler, wherein the LP column and the HP column are thermally integrated via a top reboiler/condenser disposed on top of the HP column. A cooled air stream is rectified within the system of columns such that the auxiliary column produces a cold oxygen fluid that is then warmed in the heat exchanger to produce a low pressure oxygen product. The cooled air stream provides reboiling duty for the first reboiler prior to rectification within the system of columns, and a compressed nitrogen stream received from a cold end of the heat exchanger provides reboiling duty for the second reboiler.
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公开(公告)号：US09920988B2
公开(公告)日：2018-03-20
申请号：US15242961
申请日：2016-08-22
申请人： Vijayaraghavan S. Chakravarthy , Michael J. Lockett , Dante P. Bonaquist , Maulik R. Shelat , Karl K. Kibler
发明人： Vijayaraghavan S. Chakravarthy , Michael J. Lockett , Dante P. Bonaquist , Maulik R. Shelat , Karl K. Kibler
CPC分类号： F25J3/0486 , F25J3/04412 , F25J3/04769 , F25J3/04787 , F25J3/04793 , F25J3/04824 , F25J3/04884 , F25J5/005 , F25J2200/52 , F25J2200/54 , F25J2250/02 , F25J2250/04 , F25J2250/10 , F25J2250/20
摘要： A method and main heat exchange system for use in a cryogenic air separation plant in which down-flow and thermosiphon heat exchangers are employed to partially vaporize an oxygen-rich liquid produced in a lower pressure column and to condense the nitrogen-rich vapor in a higher pressure column. A greater proportion of the oxygen-rich liquid can be partially vaporized in the down-flow heat exchangers than in the thermosiphon heat exchangers and the nitrogen-rich vapor condensed in the thermosiphon heat exchangers can have a higher oxygen content than the nitrogen-rich vapor condensed in the down-flow heat exchangers. This allows the higher pressure column to operate at a lower pressure than would otherwise be possible. A central conduit can extend from the higher pressure column into the lower pressure column to introduce the nitrogen-rich vapor into at least the down-flow heat exchangers for purposes of reducing pressure drop and column height.
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公开(公告)号：US20170023297A1
公开(公告)日：2017-01-26
申请号：US15285545
申请日：2016-10-05
CPC分类号： F25J5/005 , F25J3/04412 , F25J3/04884 , F25J2235/50 , F25J2250/02 , F25J2250/04 , F25J2250/10 , F25J2250/20 , F25J2290/44
摘要： A system and method for the concurrent condensation of a nitrogen-rich vapor and vaporization of an oxygen-rich liquid in a distillation column based air separation unit is provided. The disclosed system includes a condenser-reboiler heat exchanger located between a lower pressure column and a higher pressure column and configured to condense a nitrogen-rich vapor from the higher pressure column and partially vaporize an oxygen-rich liquid from the lower pressure column. Within the condenser-reboiler heat exchanger, the nitrogen-rich vapor flows in an upward direction such that any non-condensables present in the nitrogen-rich vapor will accumulate proximate the upper portion or top of the condenser-reboiler modules where they can be easily removed through venting.
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公开(公告)号：US09488408B2
公开(公告)日：2016-11-08
申请号：US14167339
申请日：2014-01-29
CPC分类号： F25J5/005 , F25J3/04412 , F25J3/04884 , F25J2235/50 , F25J2250/02 , F25J2250/04 , F25J2250/10 , F25J2250/20 , F25J2290/44
摘要： A system and method for the concurrent condensation of a nitrogen-rich vapor and vaporization of an oxygen-rich liquid in a distillation column based air separation unit is provided. The disclosed system includes a condenser-reboiler heat exchanger located between a lower pressure column and a higher pressure column and configured to condense a nitrogen-rich vapor from the higher pressure column and partially vaporize an oxygen-rich liquid from the lower pressure column. Within the condenser-reboiler heat exchanger, the nitrogen-rich vapor flows in an upward direction such that any non-condensables present in the nitrogen-rich vapor will accumulate proximate the upper portion or top of the condenser-reboiler modules where they can be easily removed through venting.
摘要翻译： 提供了一种用于富氮蒸气的同时冷凝和富氧液体蒸发在基于蒸馏塔的空气分离单元中的系统和方法。 所公开的系统包括位于低压塔和较高压力塔之间的冷凝器 - 再沸器热交换器，并且构造成冷凝来自较高压力塔的富氮蒸汽并且从低压塔部分蒸发富氧液体。 在冷凝器 - 再沸器热交换器内，富氮蒸气沿向上方向流动，使得存在于富氮蒸气中的任何不可冷凝物将在冷凝器 - 再沸器模块的上部或上部附近积聚，在那里它们可以容易地 通过排气去除。
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公开(公告)号：US09488407B2
公开(公告)日：2016-11-08
申请号：US15153124
申请日：2016-05-12
申请人： Hanfei Tuo , Karl K. Kibler , Maulik R. Shelat
发明人： Hanfei Tuo , Karl K. Kibler , Maulik R. Shelat
IPC分类号： F25J3/04
CPC分类号： F25J3/04412 , F25J5/005 , F25J2200/06 , F25J2200/54 , F25J2250/02 , F25J2250/04 , F25J2250/10 , F25J2250/20 , F25J2290/32 , F25J2290/44 , F28F2265/12
摘要： A system and method for the concurrent condensation of a nitrogen-rich vapor and vaporization of an oxygen-rich liquid in a distillation column based air separation unit is provided. The disclosed system includes a condenser-reboiler heat exchanger located between a lower pressure column and a higher pressure column and configured to condense a nitrogen-rich vapor from the higher pressure column and partially vaporize an oxygen-rich liquid from the lower pressure column. Within the condenser-reboiler heat exchanger, the nitrogen-rich vapor flows in an upward direction such that any non-condensables present in the nitrogen-rich vapor will accumulate proximate the upper portion or top of the condenser-reboiler modules where they can be easily removed through venting by means of a venting apparatus having a plurality of perforated tubes.
摘要翻译： 提供了一种用于富氮蒸气的同时冷凝和富氧液体蒸发在基于蒸馏塔的空气分离单元中的系统和方法。 所公开的系统包括位于低压塔和较高压力塔之间的冷凝器 - 再沸器热交换器，并且构造成冷凝来自较高压力塔的富氮蒸汽并且从低压塔部分蒸发富氧液体。 在冷凝器 - 再沸器热交换器内，富氮蒸气沿向上方向流动，使得存在于富氮蒸汽中的任何不可冷凝物将在冷凝器 - 再沸器模块的上部或上部附近积聚，在那里它们可以容易地 通过具有多个穿孔管的排气装置通过排气而去除。
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公开(公告)号：US08443625B2
公开(公告)日：2013-05-21
申请号：US12191584
申请日：2008-08-14
IPC分类号： F25J3/00
CPC分类号： F25J3/04969 , F25J3/04054 , F25J3/0409 , F25J3/04303 , F25J3/04309 , F25J3/04315 , F25J3/04387 , F25J3/04412 , F25J3/04448 , F25J3/04678 , F25J3/04721 , F25J3/04745 , F25J3/04872 , F25J2200/20 , F25J2200/32 , F25J2200/38 , F25J2200/54 , F25J2200/90 , F25J2235/52 , F25J2240/10 , F25J2245/02 , F25J2250/20
摘要： A method of separating air in which a superheated air stream is introduced into a mass transfer contacting zone associated with a higher pressure column of an air separation unit. Krypton and xenon is washed from a superheated air stream introduced into the mass transfer contacting zone, thereby to form a krypton and xenon-rich liquid. The krypton and xenon-rich liquid is stripped within a stripping column to produce a krypton-xenon-rich bottoms liquid. A krypton-xenon-rich stream composed of the krypton-xenon-rich bottoms liquid from the stripping column is produced for purposes of further refinement.
摘要翻译： 一种分离空气的方法，其中将过热空气流引入与空气分离单元的较高压力塔相关联的传质接触区域。 从引入到传质接触区的过热空气流中洗涤氪和氙，从而形成氪和氙浓液体。 将氪和氙气的液体在汽提塔内汽提，以产生富含氪 - 氙的底部液体。 为了进一步细化的目的，生产了由来自汽提塔的富含氪 - 氙的底部液体组成的氪 - 氙浓缩物流。
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10.发明申请APPARATUS AND METHOD FOR THE DISTILLATION SEPARATION OF A MIXTURE CONTAINING CARBON DIOXIDE 有权含有二氧化碳的混合物的蒸馏分离装置及方法公开(公告)号：US20120324942A1
公开(公告)日：2012-12-27
申请号：US13582090
申请日：2011-02-11
申请人： Bruno Berthome , Laurent Perru , Fabrice Rivoal
发明人： Bruno Berthome , Laurent Perru , Fabrice Rivoal
IPC分类号： F25J3/02
CPC分类号： F25J3/0209 , F25J3/0219 , F25J3/0223 , F25J3/0266 , F25J5/005 , F25J2200/02 , F25J2200/40 , F25J2200/74 , F25J2210/12 , F25J2210/70 , F25J2215/04 , F25J2220/80 , F25J2220/82 , F25J2230/30 , F25J2250/02 , F25J2250/20 , F25J2270/90 , F25J2290/12 , F25J2290/34 , Y02C10/12
摘要： The invention relates to an apparatus for the distillation separation of a mixture containing, as the main components thereof, carbon dioxide and at least one other fluid selected from the group containing nitrogen, oxygen, argon, hydrogen, methane, carbon monoxide, said apparatus comprising a distillation column (8), a condenser (9), a reboiler (7, 11), means for conveying the mixture to be separated to the column or the condenser, means for conveying a head gas from the column to the condenser, and means for conveying a liquid condensed in the condenser into the head of the column. The condenser is formed by an exchanger with plates and blades made from brazed aluminum and having an exchange surface area per m3 of exchanger greater than 400 m2/m3, with ammonia being used as refrigerant.
摘要翻译： 本发明涉及蒸馏分离含有二氧化碳和至少一种选自氮，氧，氩，氢，甲烷，一氧化碳的其它流体的混合物的混合物的装置，所述装置包括 蒸馏塔（8），冷凝器（9），再沸器（7,11），用于将要分离的混合物输送到塔或冷凝器的装置，用于将塔顶气体从塔输送到冷凝器的装置，以及 用于将在冷凝器中冷凝的液体输送到塔的头部的装置。 冷凝器由具有由钎焊铝制成的板和刀片的交换器形成，并且每立方米换热器的交换表面积大于400m 2 / m 3，氨被用作制冷剂。
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