公开(公告)号：US20230375263A1

公开(公告)日：2023-11-23

申请号：US17745965

申请日：2022-05-17

申请人： GAS LIQUIDS ENGINEERING LTD.

发明人： WILLIAM STOTHERS ,  EUGENIUSZ GRYNIA ,  STUART MacKENZIE

IPC分类号： F25J3/02

CPC分类号： F25J3/0209 ,  F25J3/0238 ,  F25J3/0242 ,  F25J2200/06 ,  F25J2200/74 ,  F25J2200/72 ,  F25J2205/04 ,  F25J2215/62 ,  F25J2215/64

摘要： Gas processing methodology for high efficiency recovery of propane and/or ethane from a natural gas feed stream. The method is conducted without turboexpansion. A natural gas stream is processed to have gas and liquid portions. The gas portion is cooled and flows to a refluxed absorber column and the liquid portion flows to a lower pressure distillation column. Bottoms of the absorber column are depressurized directly into a lower pressure distillation column and the overhead vapor stream is used to cool the feed and/or reflux streams. The overhead vapour stream from the lower pressure distillation column split into at least two streams with one being depressurized into the absorber to provide reflux and the second passed into the absorber column to provide further reflux.

公开(公告)号：US11650009B2

公开(公告)日：2023-05-16

申请号：US16852770

申请日：2020-04-20

申请人： BCCK Holding Company

发明人： Rayburn C. Butts

IPC分类号： F25J3/02

CPC分类号： F25J3/0257 ,  F25J3/0209 ,  F25J2200/06 ,  F25J2200/40 ,  F25J2200/50 ,  F25J2200/72 ,  F25J2200/78 ,  F25J2205/04 ,  F25J2240/12 ,  F25J2245/00 ,  F25J2270/12

摘要： A system and method for removing nitrogen from natural gas using two fractionating columns, that may be stacked, and a plurality of separators and heat exchangers, with horsepower requirements that are 50-80% of requirements for prior art systems. The fractionating columns operate at different pressures. A feed stream is separated with a vapor portion feeding the first column to produce a first column bottoms stream that is split into multiple portions at different pressures and first column overhead stream that is split or separated into two portions at least one of which is subcooled prior to feeding the top of the second column. Optional heat exchange between first column and second column streams provides first column reflux and reboil heat for a second column ascending vapor stream. Three sales gas streams are produced, each at a different pressure.

公开(公告)号：US20180252469A1

公开(公告)日：2018-09-06

申请号：US15450674

申请日：2017-03-06

申请人： Larry Baxter ,  Eric Mansfield ,  Christopher Hoeger

发明人： Larry Baxter ,  Eric Mansfield ,  Christopher Hoeger

IPC分类号： F25J3/08 ,  F25J3/02

CPC分类号： B01D53/002 ,  B01D53/14 ,  B01D2257/402 ,  B01D2257/404 ,  B01D2257/504 ,  B01D2257/702 ,  B01D2258/0283 ,  F25J3/0266 ,  F25J2200/02 ,  F25J2200/72 ,  F25J2200/74 ,  F25J2205/10 ,  F25J2205/20 ,  F25J2205/30 ,  F25J2205/50 ,  F25J2205/90 ,  F25J2210/70 ,  F25J2220/82 ,  F25J2220/84 ,  F25J2230/80 ,  F25J2235/80 ,  F25J2270/12 ,  F25J2270/14 ,  F25J2270/60 ,  F25J2270/902 ,  Y02C10/12

摘要： A process for removing a foulant from a gas stream is disclosed. The gas stream is cooled in a series of heat exchangers, causing a portion of the foulant to desublimate and become entrained in a cryogenic liquid. This foulant slurry stream is pressurized, cooled, and separated into a pressurized foulant solid stream and the cryogenic liquid stream. The pressurized foulant solid stream is melted to produce a liquid foulant stream. Heat exchange processes, both internal and external, are provided that close the heat balance of the process. In this manner, the foulant is removed from the gas stream.

公开(公告)号：US20180080710A1

公开(公告)日：2018-03-22

申请号：US15271594

申请日：2016-09-21

申请人： Henry E. Howard

发明人： Henry E. Howard

IPC分类号： F25J3/02 ,  F25J5/00

CPC分类号： F25J3/0223 ,  C01B3/506 ,  C01B2203/046 ,  C01B2203/068 ,  C01C1/0405 ,  F25J1/0015 ,  F25J1/0035 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0208 ,  F25J1/0237 ,  F25J1/0264 ,  F25J1/0288 ,  F25J3/0219 ,  F25J3/0233 ,  F25J3/0257 ,  F25J3/0276 ,  F25J3/0285 ,  F25J5/005 ,  F25J2200/30 ,  F25J2200/70 ,  F25J2200/72 ,  F25J2200/74 ,  F25J2200/94 ,  F25J2200/96 ,  F25J2205/02 ,  F25J2205/30 ,  F25J2205/60 ,  F25J2210/04 ,  F25J2210/20 ,  F25J2210/42 ,  F25J2210/58 ,  F25J2210/62 ,  F25J2215/04 ,  F25J2215/20 ,  F25J2215/42 ,  F25J2215/58 ,  F25J2215/60 ,  F25J2220/02 ,  F25J2230/08 ,  F25J2230/30 ,  F25J2235/60 ,  F25J2240/12 ,  F25J2240/40 ,  F25J2245/02 ,  F25J2260/20 ,  F25J2270/02 ,  F25J2270/06 ,  F25J2270/12 ,  F25J2270/16 ,  F25J2270/42 ,  F25J2270/90 ,  F25J2270/904

摘要： A system and method for cryogenic purification of a hydrogen, nitrogen, methane and argon containing feed stream to produce a methane free, hydrogen and nitrogen containing synthesis gas and a methane rich fuel gas, as well as to recover an argon product stream, excess hydrogen, and excess nitrogen is provided. The disclosed system and method are particularly useful as an integrated cryogenic purifier in an ammonia synthesis process in an ammonia plant. The excess nitrogen is a nitrogen stream substantially free of methane and hydrogen that can be used in other parts of the plant, recovered as a gaseous nitrogen product and/or liquefied to produce a liquid nitrogen product.

公开(公告)号：US09777960B2

公开(公告)日：2017-10-03

申请号：US13308982

申请日：2011-12-01

申请人： Kevin L. Currence ,  Robert A. Mortko

发明人： Kevin L. Currence ,  Robert A. Mortko

IPC分类号： F25J3/02

CPC分类号： F25J3/0209 ,  F25J3/0219 ,  F25J3/0233 ,  F25J3/0238 ,  F25J3/0242 ,  F25J2200/02 ,  F25J2200/72 ,  F25J2200/74 ,  F25J2205/04 ,  F25J2210/12 ,  F25J2230/30 ,  F25J2245/02 ,  F25J2270/04 ,  F25J2270/12 ,  F25J2270/66

摘要： An NGL recovery facility utilizing a single, closed-loop mixed refrigerant cycle for recovering a substantial portion of the C2 and heavier or C3 and heavier NGL components from the incoming gas stream. Less severe operating conditions, including a warmer refrigerant temperature and a lower feed gas pressure, contribute to a more economical and efficient NGL recovery system.

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。

公开(公告)号：US20170023293A1

公开(公告)日：2017-01-26

申请号：US15284823

申请日：2016-10-04

申请人： Fluor Technologies Corporation

发明人： John Mak

IPC分类号： F25J1/02 ,  F25J3/02 ,  F25J1/00 ,  C10G5/06 ,  B01D53/00

CPC分类号： F25J1/0231 ,  B01D53/002 ,  C07C7/09 ,  C10G5/06 ,  C10G2300/1025 ,  F25J1/0022 ,  F25J3/0209 ,  F25J3/0233 ,  F25J3/0242 ,  F25J3/0257 ,  F25J2200/02 ,  F25J2200/04 ,  F25J2200/40 ,  F25J2200/70 ,  F25J2200/72 ,  F25J2200/74 ,  F25J2205/02 ,  F25J2205/04 ,  F25J2210/06 ,  F25J2215/02 ,  F25J2220/62 ,  F25J2230/08 ,  F25J2230/60 ,  F25J2235/60 ,  F25J2240/40 ,  F25J2245/02 ,  F25J2260/20 ,  F25J2270/02 ,  F25J2270/08 ,  F25J2270/90 ,  C07C9/04

摘要： Variable N2 content in feed gas ranging from 3 mol % to 50 mol % can be rejected from the process using a feed exchanger that is fluidly coupled with a cold separator and a single fractionation column to produce a nitrogen vent stream and streams that are suitable to be further processed for NGL recovery and LNG production.

摘要翻译： 进料气体中3mol％至50mol％范围内的可变N2含量可以从使用与冷分离器和单分馏塔流体耦合的进料交换器的方法中排除以产生氮气排放流和适于 进一步处理NGL回收和液化天然气生产。

公开(公告)号：US20160327334A1

公开(公告)日：2016-11-10

申请号：US15108042

申请日：2014-12-26

申请人： CHIYODA CORPORATION

发明人： Yoshitsugi Kikkawa ,  Koichiro Sakai

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

CPC分类号： F25J1/0022 ,  F25J1/0035 ,  F25J1/0052 ,  F25J1/0055 ,  F25J1/0082 ,  F25J1/0085 ,  F25J1/0087 ,  F25J1/021 ,  F25J1/0216 ,  F25J1/0218 ,  F25J1/0239 ,  F25J1/0241 ,  F25J1/0262 ,  F25J1/0292 ,  F25J3/0209 ,  F25J3/0233 ,  F25J3/0238 ,  F25J2200/02 ,  F25J2200/40 ,  F25J2200/72 ,  F25J2200/74 ,  F25J2200/76 ,  F25J2205/02 ,  F25J2205/04 ,  F25J2210/60 ,  F25J2220/64 ,  F25J2220/66 ,  F25J2220/68 ,  F25J2230/08 ,  F25J2230/20 ,  F25J2230/22 ,  F25J2230/30 ,  F25J2230/60 ,  F25J2235/60 ,  F25J2240/02 ,  F25J2240/04 ,  F25J2240/40 ,  F25J2270/12 ,  F25J2270/18 ,  F25J2270/60 ,  F25J2270/66

摘要： By using the power generated by an expander by an expansion of material gas, the outlet pressure of a compressor is increased, and a requirement on the cooling capacity of a cooler is reduced. The liquefaction system (1) for natural gas comprises a first expander (3) for generating power by using natural gas under pressure as material gas; a first cooling unit (11, 12) for cooling the material gas depressurized by expansion in the first expander; a distillation unit (15) for reducing or eliminating a heavy component in the material gas by distilling the material gas cooled by the first cooling unit; a first compressor (4) for compressing the material gas from which the heavy component was reduced or eliminated by the distillation unit by using power generated in the first expander; and a liquefaction unit (21) for liquefying the material gas compressed by the first compressor by exchanging heat with a refrigerant.

摘要翻译： 通过利用膨胀机通过膨胀材料气体产生的动力，压缩机的出口压力增加，并且降低了对冷却器的冷却能力的要求。 用于天然气的液化系统（1）包括通过在压力下使用天然气作为原料气体来发电的第一膨胀机（3） 第一冷却单元（11,12），用于冷却通过第一膨胀机中的膨胀减压的材料气体; 蒸馏单元（15），用于通过蒸馏由第一冷却单元冷却的材料气体来减少或消除材料气体中的重组分; 第一压缩机（4），用于通过使用在第一膨胀机中产生的动力来压缩由蒸馏单元减少或消除重质成分的原料气体; 以及液化单元（21），用于通过与致冷剂进行热交换来液化由第一压缩机压缩的原料气体。

公开(公告)号：US09423175B2

公开(公告)日：2016-08-23

申请号：US14210061

申请日：2014-03-13

申请人： FLUOR TECHNOLOGIES CORPORATION

发明人： John Mak

IPC分类号： F25J3/00 ,  F25J3/02

CPC分类号： F25J3/0209 ,  F25J3/0233 ,  F25J3/0238 ,  F25J3/0242 ,  F25J2200/02 ,  F25J2200/04 ,  F25J2200/70 ,  F25J2200/72 ,  F25J2200/74 ,  F25J2200/76 ,  F25J2200/94 ,  F25J2205/04 ,  F25J2215/02 ,  F25J2215/60 ,  F25J2215/62 ,  F25J2230/60 ,  F25J2240/02 ,  F25J2245/02 ,  F25J2270/90 ,  F25J2280/02 ,  F25J2290/40

摘要： A natural gas liquids plant uses a demethanizer and a deethanizer in a two-column or single column configuration that can be used for ethane recovery and ethane rejection. During ethane recovery, 95% ethane recovery and 99% propane recovery are achieved, while during ethane rejection the sales gas Wobbe Index requirement is maintained while maintaining 95% propane recovery. A residue gas recycle exchanger is most preferably configured to use the demethanizer overhead product to either cool a portion of the residue gas and a portion of the feed gas during ethane recovery, or to cool a portion of the feed gas using two distinct heat transfer areas to produce a feed gas reflux at significantly lower temperature.

摘要翻译： 天然气液化设备采用双塔或单柱配置的脱甲烷塔和脱乙烷塔，可用于乙烷回收和乙烷排放。 在乙烷回收期间，实现了95％的乙烷回收率和99％的丙烷回收率，而乙烷排放期间维持销售瓦斯指数的要求，同时维持95％的丙烷回收率。 残余气体循环交换器最优选构造成使用脱甲烷塔顶产物在乙烷回收过程中冷却一部分残余气体和一部分进料气体，或者使用两个不同的传热区域冷却一部分进料气体 以在显着较低的温度下产生进料气体回流。

公开(公告)号：US20160216030A1

公开(公告)日：2016-07-28

申请号：US14604030

申请日：2015-01-23

申请人： AIR PRODUCTS AND CHEMICALS, INC.

发明人： Timothy Truong ,  Gowri Krishnamurthy ,  Mark Julian Roberts

IPC分类号： F25J3/02

CPC分类号： F25J3/0214 ,  F25J1/0022 ,  F25J1/0045 ,  F25J1/0052 ,  F25J1/0055 ,  F25J1/0216 ,  F25J1/0237 ,  F25J1/0241 ,  F25J1/025 ,  F25J1/0292 ,  F25J3/0209 ,  F25J3/0233 ,  F25J3/0238 ,  F25J3/0242 ,  F25J2200/02 ,  F25J2200/04 ,  F25J2200/72 ,  F25J2200/74 ,  F25J2200/78 ,  F25J2210/04 ,  F25J2215/62 ,  F25J2245/02 ,  F25J2260/02 ,  F25J2270/02 ,  F25J2270/18 ,  F25J2270/66

摘要： Described herein is a method of and system for fractionating and liquefying a natural gas feed stream. The natural gas is first fractionated in a scrub column. The overhead vapor from the scrub column is cooled, condensed and divided to form a first, a second and at least one further stream of liquefied first overhead. The first stream of liquefied first overhead is returned to the scrub column as a reflux stream. The second stream of liquefied first overhead forms an LNG product. The further stream of liquefied first overhead is used to provide or generate reflux for a de-methanizer column used to fractionate the bottoms liquid from the scrub column.

摘要翻译： 本文描述了天然气进料流的分馏和液化的方法和系统。 天然气首先在洗涤塔中分馏。 来自洗涤塔的塔顶蒸气被冷却，冷凝和分离以形成液化的第一塔顶馏出物的第一，第二和至少一个另外的物流。 液化的第一塔顶馏出物作为回流流返回洗涤塔。 液化的第一塔顶液流形成LNG产品。 进一步的液化的第一塔顶物流用于为用于从洗涤塔中分馏底部液体的脱甲烷塔提供或产生回流。