公开(公告)号：US11976879B2

公开(公告)日：2024-05-07

申请号：US17836171

申请日：2022-06-09

申请人： L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude

发明人： Jorge Ernesto Tovar Ramos

IPC分类号： F25J3/02 ,  F25J1/00 ,  F25J1/02

CPC分类号： F25J1/0238 ,  F25J1/0022 ,  F25J1/0082 ,  F25J3/0266 ,  F25J2210/66 ,  F25J2215/60 ,  F25J2215/80 ,  F25J2245/02 ,  F25J2290/12

摘要： A combined plant for cryogenic separation and liquefaction of methane and carbon dioxide in a biogas stream, including a mixing means, a compressor, a first exchanger, a distillation column, a second exchanger, a separating means, an expanding means, and a separator vessel. Wherein, the mixing means is configured such that the recycle gas is the overhead vapour stream, and the first exchanger and the expanding means are combined.

公开(公告)号：US11946692B2

公开(公告)日：2024-04-02

申请号：US17716801

申请日：2022-04-08

申请人： L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude

发明人： Paul Terrien ,  Nicolas Chantant ,  Jean-Marc Peyron

IPC分类号： F25J3/02

CPC分类号： F25J3/0233 ,  F25J3/0257 ,  F25J3/0295 ,  F25J2200/06 ,  F25J2200/74 ,  F25J2290/12

摘要： A method for separating a mixture containing at least nitrogen and methane by cryogenic distillation in a first column operating in a first pressure and a second column operating at a second pressure lower than the first pressure, the mixture being separated in the first column to form a gas enriched in nitrogen and a liquid enriched in methane, at least a portion of the gas enriched in nitrogen being at least partially condensed in a heat exchanger and returned to the first column, the gas enriched in nitrogen is sent into the heat exchanger by the bottom, ascends in a first series of passages of the exchanger and condenses therein at least partially, the liquid formed descending in these passages of the first series and exiting by the bottom of the exchanger.

公开(公告)号：US20180208855A1

公开(公告)日：2018-07-26

申请号：US15746456

申请日：2016-07-12

申请人： L'Air Liquide, Société Anonyme pour I'Etude et I'Exploitation des Procédés Georges Claude

发明人： Nicolas CHAMBRON ,  Pierre COSTA DE BEAUREGARD ,  Henri PARADOWSKI

IPC分类号： C10G5/06 ,  F25J3/02 ,  F25J1/00 ,  F25J1/02

CPC分类号： C10G5/06 ,  C10G70/043 ,  C10L3/101 ,  F25J1/0022 ,  F25J1/0047 ,  F25J1/0055 ,  F25J1/0212 ,  F25J1/0238 ,  F25J3/0209 ,  F25J3/0214 ,  F25J3/0233 ,  F25J3/0247 ,  F25J2200/02 ,  F25J2200/74 ,  F25J2215/04 ,  F25J2220/60 ,  F25J2245/02 ,  F25J2270/18 ,  F25J2270/66 ,  F25J2290/12

摘要： A process for the purification of a gas rich in hydrocarbons and comprising at least 10 ppm by volume of hydrocarbons having at least six carbon atoms nitrogen.

公开(公告)号：US20180180354A1

公开(公告)日：2018-06-28

申请号：US15739179

申请日：2016-06-23

申请人： GASCONSULT LIMITED

发明人： Geoffrey Frederick Skinner ,  Anthony Dwight Maunder

IPC分类号： F25J1/00 ,  F25J1/02

CPC分类号： F25J1/0022 ,  F25J1/0035 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0202 ,  F25J1/0254 ,  F25J2220/64 ,  F25J2270/06 ,  F25J2290/12

摘要： A process for liquefying methane-rich gases comprising providing a stream of feed methane-rich gas at a pressure of from 40 bar to 120 bar and containing higher hydrocarbons; providing a stream of methane-rich recycle gas at a pressure of from 40 bar to 120 bar; mixing the feed gas with a first part of the recycle gas; passing the resulting mixture to a gas expander, the expander outlet having a pressure of between 3 bar and 50 bar, so as to form a mixture of vapor and a condensed liquid containing higher hydrocarbons; separating the expander outlet stream into a liquid stream and a vapor stream; reheating and compressing said vapor stream to a pressure of from 40 bar to 120 bar to form a first constituent of the above-said recycle gas; cooling a second part of the said recycle gas to a temperature higher than the outlet temperature of the said expander; passing said cooled second part of the recycle gas into a liquefaction unit to form liquefied methane and a second vapor stream; reheating and compressing said second vapor stream to a pressure of from 40 bar to 120 bar to form a second constituent of the above-said recycle gas.

公开(公告)号：US09927171B2

公开(公告)日：2018-03-27

申请号：US15466366

申请日：2017-03-22

申请人： Ortloff Engineers, Ltd. ,  S.M.E. Products, LP

发明人： Hank M. Hudson ,  John D. Wilkinson ,  Joe T. Lynch ,  Scott A. Miller ,  Kyle T. Cuellar ,  Andrew F. Johnke ,  W. Larry Lewis

IPC分类号： F25J3/02 ,  F25J1/00 ,  C07C7/04

CPC分类号： F25J3/0209 ,  C07C7/04 ,  F25J1/0022 ,  F25J3/0233 ,  F25J3/0238 ,  F25J3/0242 ,  F25J2200/02 ,  F25J2200/70 ,  F25J2200/74 ,  F25J2200/80 ,  F25J2205/04 ,  F25J2210/06 ,  F25J2215/04 ,  F25J2215/60 ,  F25J2230/20 ,  F25J2230/60 ,  F25J2235/60 ,  F25J2240/02 ,  F25J2240/40 ,  F25J2270/90 ,  F25J2290/12 ,  F25J2290/40 ,  F25J2290/80

摘要： A process and an apparatus are disclosed for a compact processing assembly to improve the recovery of C2 (or C3) and heavier hydrocarbon components from a hydrocarbon gas stream. The preferred method of separating a hydrocarbon gas stream generally includes producing at least a substantially condensed first stream and a cooled second stream, expanding both streams to lower pressure, and supplying the streams to a fractionation tower. In the process and apparatus disclosed, the expanded first stream is heated to form a vapor fraction and a liquid fraction. The vapor fraction is combined with the tower overhead vapor, directed to a heat and mass transfer means inside a processing assembly, and cooled and partially condensed by the expanded first stream to form a residual vapor stream and a condensed stream. The condensed stream is combined with the liquid fraction and supplied to the tower at its top feed point.

公开(公告)号：US20180038641A1

公开(公告)日：2018-02-08

申请号：US15414118

申请日：2017-01-24

申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

发明人： Alain GUILLARD ,  Michael A. TURNEY ,  Alexander ROESCH

IPC分类号： F25J1/02 ,  F25J3/04 ,  B01D53/047 ,  C01B3/56 ,  B01J7/02 ,  B01J19/24 ,  F25J1/00 ,  C01B3/34

CPC分类号： F25J1/023 ,  B01D53/047 ,  B01D2256/16 ,  B01J7/02 ,  B01J19/245 ,  C01B3/34 ,  C01B3/56 ,  C01B2203/0216 ,  C01B2203/042 ,  C01B2203/061 ,  C01B2203/1241 ,  C01B2203/127 ,  F25J1/0022 ,  F25J1/0037 ,  F25J1/0067 ,  F25J1/0072 ,  F25J1/0221 ,  F25J1/0227 ,  F25J1/0229 ,  F25J1/0232 ,  F25J1/0234 ,  F25J1/0297 ,  F25J3/04018 ,  F25J3/04024 ,  F25J3/04121 ,  F25J3/04412 ,  F25J3/04563 ,  F25J3/04593 ,  F25J3/046 ,  F25J2200/06 ,  F25J2210/06 ,  F25J2210/12 ,  F25J2210/40 ,  F25J2210/42 ,  F25J2210/60 ,  F25J2215/40 ,  F25J2220/64 ,  F25J2220/66 ,  F25J2220/68 ,  F25J2230/20 ,  F25J2230/30 ,  F25J2230/40 ,  F25J2230/42 ,  F25J2240/02 ,  F25J2245/40 ,  F25J2245/42 ,  F25J2260/44 ,  F25J2270/04 ,  F25J2270/14 ,  F25J2270/16 ,  F25J2290/12 ,  F25J2290/60 ,  Y02C10/08 ,  Y02C20/20

摘要： A method for the liquefaction of an industrial gas by integration of a methanol plant and an air separation unit (ASU) is provided. The method can include the steps of: (a) providing a pressurized natural gas stream, a pressurized purge gas stream originating from a methanol plant, and a pressurized air gas stream comprising an air gas originating from the ASU; (b) expanding three different pressurized gases to produce three cooled streams, wherein the three different pressurized gases are the pressurized natural gas stream, the pressurized purge gas stream, and the pressurized air gas stream; and (c) liquefying the industrial gas in a liquefaction unit against the three cooled streams to produce a liquefied industrial gas stream. The industrial gas to be liquefied is selected from the group consisting of a first portion of the pressurized natural gas stream, a nitrogen gas stream, hydrogen and combinations thereof.

公开(公告)号：US09874395B2

公开(公告)日：2018-01-23

申请号：US14516713

申请日：2014-10-17

申请人： Jaime A. Valencia ,  Paul Scott Northrop

发明人： Jaime A. Valencia ,  Paul Scott Northrop

IPC分类号： F25J3/00 ,  F25J3/02 ,  B01D3/42 ,  F25J3/06 ,  F25J1/00 ,  C10L3/10

CPC分类号： F25J3/0266 ,  B01D3/4211 ,  C10L3/101 ,  C10L2290/141 ,  C10L2290/543 ,  C10L2290/58 ,  F25J1/0022 ,  F25J1/0027 ,  F25J3/0209 ,  F25J3/0233 ,  F25J3/0295 ,  F25J3/061 ,  F25J3/0635 ,  F25J3/067 ,  F25J2200/02 ,  F25J2200/30 ,  F25J2200/50 ,  F25J2200/74 ,  F25J2205/04 ,  F25J2205/20 ,  F25J2205/50 ,  F25J2235/60 ,  F25J2280/02 ,  F25J2280/40 ,  F25J2290/12 ,  F25J2290/40 ,  Y02C10/12

摘要： The present disclosure provides a method for preventing accumulation of solids in a distillation tower. The method includes introducing a feed stream into a controlled freeze zone section of a distillation tower; forming solids in the controlled freeze zone section from the feed stream; discontinuously injecting a first freeze-inhibitor solution into the controlled freeze zone section toward a location in the controlled freeze zone section that accumulates the solids; and destabilizing accumulation of the solids from the location with the first freeze-inhibitor solution.

公开(公告)号：US09869511B2

公开(公告)日：2018-01-16

申请号：US14516683

申请日：2014-10-17

申请人： Jaime A. Valencia ,  David W. Maher

发明人： Jaime A. Valencia ,  David W. Maher

IPC分类号： F25J3/00 ,  F25J1/00 ,  F25J3/02 ,  F25J3/06 ,  B01D3/32 ,  C07C7/05 ,  F25J3/08 ,  B01D1/20 ,  C10L3/10

CPC分类号： F25J3/0266 ,  B01D1/20 ,  B01D3/32 ,  C07C7/05 ,  C10L3/104 ,  C10L2290/141 ,  C10L2290/18 ,  C10L2290/543 ,  C10L2290/58 ,  F25J1/0022 ,  F25J3/0209 ,  F25J3/0233 ,  F25J3/061 ,  F25J3/0635 ,  F25J3/067 ,  F25J3/08 ,  F25J2200/02 ,  F25J2200/30 ,  F25J2200/50 ,  F25J2200/74 ,  F25J2200/90 ,  F25J2205/04 ,  F25J2205/20 ,  F25J2220/66 ,  F25J2235/60 ,  F25J2280/40 ,  F25J2290/12 ,  F25J2290/40 ,  Y02C10/12

摘要： A method for separating a feed stream in a distillation tower comprising maintaining a controlled freeze zone (CFZ) section in the distillation tower, receiving a freezing zone liquid stream in a spray nozzle assembly in the CFZ section, wherein the spray nozzle assembly comprises a plurality of outer spray nozzles on an outer periphery of the spray nozzle assembly and at least one inner spray nozzle interior to the outer spray nozzles, wherein each outer spray nozzle is configured to spray the freezing zone liquid stream along a central spray axis, and wherein the central spray axis of at least one of the outer spray nozzles is not parallel to a CFZ wall, and spraying the freezing zone liquid stream through the spray nozzle assembly into the CFZ section to keep a temperature and pressure at which the solid and the hydrocarbon-enriched vapor stream form.

公开(公告)号：US20180003429A1

公开(公告)日：2018-01-04

申请号：US15201070

申请日：2016-07-01

申请人： Fluor Technologies Corporation

发明人： John Mak

IPC分类号： F25J1/00 ,  F25J5/00

CPC分类号： F25J1/0022 ,  F25J1/004 ,  F25J1/005 ,  F25J1/0052 ,  F25J1/0072 ,  F25J1/0208 ,  F25J1/0245 ,  F25J1/0288 ,  F25J5/00 ,  F25J2210/60 ,  F25J2220/66 ,  F25J2220/68 ,  F25J2230/60 ,  F25J2240/40 ,  F25J2245/90 ,  F25J2270/16 ,  F25J2290/12 ,  F25J2290/62

摘要： An LNG plant comprises a cold box and a refrigeration unit fluidly coupled with a plurality of heat exchanger passes in the cold box. The refrigeration unit is configured to provide a first refrigerant stream to a first heat exchanger pass of the plurality of heat exchanger passes at a first pressure, a second refrigerant stream to a second heat exchanger pass at a second pressure, and a third refrigerant stream to a third heat exchanger pass at a third pressure. The second refrigerant stream comprises a first portion of the first refrigerant stream, and the third refrigerant stream comprises a second portion of the first refrigerant stream. The second pressure and the third pressure are both below the first pressure. The cold box is configured to produce LNG from a natural gas feed stream to the cold box using a refrigeration content from the refrigeration unit.

公开(公告)号：US20170051971A1

公开(公告)日：2017-02-23

申请号：US15234302

申请日：2016-08-11

申请人： Dimitri Goloubev

发明人： Dimitri Goloubev

IPC分类号： F25J3/04

CPC分类号： F25J3/04678 ,  F25J3/04024 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/04157 ,  F25J3/04169 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04387 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04672 ,  F25J3/04703 ,  F25J3/048 ,  F25J3/04818 ,  F25J3/04896 ,  F25J3/04909 ,  F25J3/04921 ,  F25J3/04939 ,  F25J3/04963 ,  F25J2200/54 ,  F25J2200/72 ,  F25J2205/02 ,  F25J2205/60 ,  F25J2205/84 ,  F25J2230/02 ,  F25J2230/40 ,  F25J2240/10 ,  F25J2240/40 ,  F25J2240/48 ,  F25J2245/02 ,  F25J2245/42 ,  F25J2245/58 ,  F25J2250/02 ,  F25J2250/04 ,  F25J2270/02 ,  F25J2270/90 ,  F25J2290/12

摘要： A distillation column system and a plant are for production of oxygen by cryogenic fractionation of air. The distillation column system has a high-pressure column and a low-pressure column, a main condenser, and an argon column with an argon column top condenser. The low-pressure column comprises an upper mass transfer region, a lower mass transfer region and a middle mass transfer region. The argon column top condenser is arranged within the low-pressure column between the upper and middle mass transfer regions and is configured as a forced-flow evaporator.

摘要翻译： 蒸馏塔系统和设备用于通过空气的低温分馏来生产氧气。 蒸馏塔系统具有高压塔和低压塔，主冷凝器和具有氩塔顶冷凝器的氩塔。 低压塔包括上部传质区域，下部传质区域和中间传质区域。 氩塔顶冷凝器布置在中压传送区域之间的低压塔内，构成强制流量蒸发器。