公开(公告)号：US20180347901A1

公开(公告)日：2018-12-06

申请号：US15779634

申请日：2016-12-01

Applicant: SHELL OIL COMPANY

Inventor： Thijs GROENENDIJK ,  Raimo Edwin Gregor POORTE ,  Nirupa RAGHAVAN ,  Michiel Gijsbert VAN AKEN

IPC: F25J3/06 ,  F25J1/00 ,  F25J1/02

CPC classification number: F25J1/0022 ,  F25J1/0035 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0202 ,  F25J3/061 ,  F25J3/0635 ,  F25J3/067 ,  F25J2205/10 ,  F25J2205/20 ,  F25J2205/30 ,  F25J2205/90 ,  F25J2210/04 ,  F25J2215/04 ,  F25J2220/66 ,  F25J2230/30 ,  F25J2230/60 ,  F25J2235/60 ,  F25J2235/80 ,  F25J2240/02 ,  F25J2245/02 ,  F25J2245/90 ,  F25J2270/04 ,  F25J2270/88 ,  Y02C10/12

Abstract: The present invention provides a method of liquefying a contaminated hydrocarbon-containing gas stream: (a) providing a CO2 contaminated hydrocarbon-containing gas stream (20); (b) cooling the contaminated hydrocarbon-containing gas stream to obtain a partially liquefied stream (70); (c) separating the partially liquefied stream obtaining a liquid stream (90); (d) cooling the liquid stream (90) in a direct contact heat exchanger (200) obtaining a multiphase stream (201) containing at least a liquid phase and a solid CO2 phase; (e) separating the multiphase stream in a solid-liquid separator (202) obtaining a CO2 depleted liquid stream (141); (f) passing the CO2 depleted liquid stream (141) to a further cooling, pressure reduction and separation stage to generate a further CO2 enriched slurry stream (206); (g) passing at least part of the further CO2 enriched slurry stream (206) to the direct contact heat exchanger (200) to provide cooling duty to and mix with the liquid stream (90).

公开(公告)号：US20180266762A1

公开(公告)日：2018-09-20

申请号：US15464271

申请日：2017-03-20

Applicant: Larry Baxter ,  Christopher Hoeger ,  Eric Mansfield

Inventor： Larry Baxter ,  Christopher Hoeger ,  Eric Mansfield

IPC: F25J3/08 ,  F25J3/02

CPC classification number: F25J3/0266 ,  B01D53/002 ,  B01D2257/504 ,  B01D2258/0283 ,  F25J3/0209 ,  F25J3/0219 ,  F25J3/0223 ,  F25J3/0233 ,  F25J3/0252 ,  F25J2205/02 ,  F25J2205/20 ,  F25J2205/30 ,  F25J2205/50 ,  F25J2210/12 ,  F25J2210/70 ,  F25J2220/82 ,  F25J2230/80 ,  F25J2235/80 ,  F25J2240/02 ,  F25J2270/12 ,  F25J2270/60 ,  F25J2270/90 ,  F25J2280/40 ,  Y02C10/12

Abstract: A process for removing a foulant from a gas stream is disclosed. The gas stream, containing a foulant, is cooled across a first heat exchanger and a second heat exchanger, producing a solid foulant entrained in cryogenic liquid as a foulant slurry, and a foulant-depleted gas stream. The foulant-depleted gas stream is passed through a cryogenic turbine and a first separation vessel, producing a light gas stream and further solid foulant. The solid foulants are recovered by a combination of pressurization, melting, and distillation to produce a liquid foulant product. Heat is recovered from the various streams in the various heat exchangers and the melter.

公开(公告)号：US20180252469A1

公开(公告)日：2018-09-06

申请号：US15450674

申请日：2017-03-06

Applicant: Larry Baxter ,  Eric Mansfield ,  Christopher Hoeger

Inventor： Larry Baxter ,  Eric Mansfield ,  Christopher Hoeger

IPC: F25J3/08 ,  F25J3/02

CPC classification number: 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

Abstract: 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：US09945609B2

公开(公告)日：2018-04-17

申请号：US14844694

申请日：2015-09-03

Applicant: IHI Corporation

Inventor： Toshiyuki Naito

IPC: F25J3/00 ,  B01D5/00 ,  F25J3/08 ,  F04B39/16 ,  B01D53/00 ,  B01D53/26 ,  B01D53/50 ,  B01D53/75 ,  B01D53/79 ,  F04B15/04 ,  F25J1/00 ,  C01B32/50 ,  B01D53/64 ,  B01D53/68 ,  F04D29/58

CPC classification number: F25J3/08 ,  B01D5/0057 ,  B01D53/002 ,  B01D53/265 ,  B01D53/504 ,  B01D53/64 ,  B01D53/68 ,  B01D53/75 ,  B01D53/79 ,  B01D2256/22 ,  B01D2257/2045 ,  B01D2257/302 ,  B01D2257/602 ,  B01D2258/0283 ,  C01B32/50 ,  F04B15/04 ,  F04B39/16 ,  F04D29/5826 ,  F25J1/0027 ,  F25J2205/04 ,  F25J2205/30 ,  F25J2205/60 ,  F25J2210/70 ,  F25J2220/80 ,  F25J2220/84 ,  F25J2230/04 ,  F25J2230/30

Abstract: Exhaust gas from which impurities have been removed through pressurization and cooling by a compressor-based impurity separation mechanism is further cooled by a refrigerator-type heat exchanger. Drain produced from the cooling by the refrigerator-type heat exchanger is discharged and supplied as an alkalinity control agent to at least upstream of an aftercooler in a first impurity separator.

公开(公告)号：US20180080710A1

公开(公告)日：2018-03-22

申请号：US15271594

申请日：2016-09-21

Applicant: Henry E. Howard

Inventor： Henry E. Howard

IPC: F25J3/02 ,  F25J5/00

CPC classification number: 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

Abstract: 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：US09759480B2

公开(公告)日：2017-09-12

申请号：US14511774

申请日：2014-10-10

Applicant: AIR PRODUCTS AND CHEMICALS, INC.

Inventor： Brian Keith Johnson ,  Gowri Krishnamurthy ,  Mark Julian Roberts

IPC: F25J1/00 ,  F25J1/02 ,  F25J3/02

CPC classification number: F25J1/0022 ,  F25J1/0055 ,  F25J1/0092 ,  F25J1/0097 ,  F25J1/0212 ,  F25J1/0214 ,  F25J1/0216 ,  F25J1/0245 ,  F25J1/0248 ,  F25J1/0249 ,  F25J1/025 ,  F25J3/0209 ,  F25J3/0233 ,  F25J3/0238 ,  F25J2200/02 ,  F25J2200/74 ,  F25J2205/30 ,  F25J2210/62 ,  F25J2245/02 ,  F25J2260/20 ,  F25J2270/902 ,  F25J2270/904 ,  F25J2290/62

Abstract: Described herein is a method of removing refrigerant from a natural gas liquefaction system in which vaporized mixed refrigerant is withdrawn from the closed-loop refrigeration circuit and introduced into a distillation column so as to be separated into an overhead vapor enriched in methane and a bottoms liquid enriched in heavier components. Overhead vapor is withdrawn from the distillation column to form a methane enriched stream that is removed from the liquefaction system, and bottoms liquid is reintroduced from the distillation column into the closed-loop refrigeration circuit. Also described are methods of altering the rate of production in a natural gas liquefaction system in which refrigerant is removed as described above, and a natural gas liquefaction systems in which such methods can be carried out.

公开(公告)号：US09446962B2

公开(公告)日：2016-09-20

申请号：US13379266

申请日：2010-08-03

Applicant: Sergio Panza ,  Pietro Moreo ,  Elio Strepparola

Inventor： Sergio Panza ,  Pietro Moreo ,  Elio Strepparola

IPC: C01C1/04 ,  C01B3/02 ,  C01B3/36 ,  C01B13/02 ,  F25J3/02 ,  F25J3/04

CPC classification number: C01C1/0476 ,  C01B3/025 ,  C01B3/36 ,  C01B13/0229 ,  C01B2203/025 ,  C01B2203/068 ,  C01B2210/0046 ,  C01C1/04 ,  C01C1/0405 ,  C01C1/0482 ,  F25J3/0219 ,  F25J3/0276 ,  F25J3/04539 ,  F25J3/04587 ,  F25J2200/74 ,  F25J2205/30 ,  F25J2210/04 ,  F25J2210/20 ,  F25J2210/42 ,  F25J2270/02 ,  F25J2290/80 ,  Y02P20/52 ,  Y10T29/49718

Abstract: A process and a plant for producing ammonia, where an ASU (3) delivers an oxygen stream and a nitrogen stream; the oxygen stream (9) is fed to the secondary reformer of a front-end reforming section (1); the nitrogen stream (10) is used to wash a purge gas or tail gas taken from the synthesis loop (2), preferably in a cryogenic section; a methane-free and inert-free gas stream is recovered and recycled to the synthesis loop (2) or at the suction of the main syngas compressor, to recover the hydrogen contained therein. A corresponding method for increasing the capacity of an ammonia plant, by providing the ASU and feeding the oxygen stream to the secondary reformer and the nitrogen stream to a suitable purge gas recovery unit.

Abstract translation: 用于生产氨的方法和装置，其中ASU（3）输送氧气流和氮气流; 氧气流（9）被供给到前端重整部分（1）的次级重整器; 氮气流（10）用于洗涤取自合成回路（2）的净化气体或尾气，优选在低温段中; 回收无甲烷和无惰性气体气流并循环到合成回路（2）或在主合成气压缩机的抽吸处，以回收其中所含的氢。 通过提供ASU并将氧气流输送到二次重整器和氮气流到合适的净化气体回收单元来提高氨装置的容量的相应方法。

公开(公告)号：US20160265841A1

公开(公告)日：2016-09-15

申请号：US15059708

申请日：2016-03-03

Applicant: Tobias Lautenschlager ,  Stefan Lochner

Inventor： Tobias Lautenschlager ,  Stefan Lochner

IPC: F25J3/04

CPC classification number: F25J3/04412 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/0429 ,  F25J3/04296 ,  F25J3/04387 ,  F25J3/04393 ,  F25J3/04448 ,  F25J3/04648 ,  F25J3/04654 ,  F25J3/0466 ,  F25J3/04666 ,  F25J3/04678 ,  F25J3/04872 ,  F25J3/04878 ,  F25J3/04884 ,  F25J2200/32 ,  F25J2205/30 ,  F25J2240/10 ,  F25J2245/58

Abstract: A system and method serve generate oxygen by low-temperature air separation in a distillation column system having a high-pressure column and a low-pressure column, a main condenser which is constructed as a condenser-evaporator, and an auxiliary column. A gaseous oxygen-containing fraction is introduced into the auxiliary column. A nitrogen-containing liquid stream from the high-pressure column, the main condenser or the low-pressure column is applied as reflux to the top of the auxiliary column. An argon-rich stream from an intermediate site of the low-pressure column is introduced into an argon removal column that has an argon removal column top condenser. The low-pressure column is arranged beside the high-pressure column, the main condenser is arranged over the high-pressure column, the auxiliary column is arranged over the main condenser, the argon removal column is arranged over the auxiliary column and the argon removal column top condenser is arranged over the argon removal column.

Abstract translation: 在具有高压塔和低压塔，构成冷凝器 - 蒸发器的主冷凝器和辅助塔的蒸馏塔系统中，通过低温空气分离产生氧气的方法和方法。 将含氧气体的馏分引入辅助塔中。 将来自高压塔，主冷凝器或低压塔的含氮液流作为回流施加到辅助塔的顶部。 将来自低压塔的中间部位的富氩流引入到具有除氩塔顶冷凝器的氩除去塔中。 低压塔位于高压塔旁边，主冷凝器设置在高压塔上，辅助柱设置在主冷凝器的上方，除氩塔设置在辅助塔上，除去氩气 塔顶冷凝器布置在氩气除去塔上。

公开(公告)号：US08966937B2

公开(公告)日：2015-03-03

申请号：US13057001

申请日：2009-07-20

Applicant: Natacha Haik-Beraud ,  Antoine Hernandez ,  Pascal Marty ,  Bernd Polster

Inventor： Natacha Haik-Beraud ,  Antoine Hernandez ,  Pascal Marty ,  Bernd Polster

IPC: F25J3/02 ,  C01B3/38

CPC classification number: F25J3/0223 ,  B01D2257/502 ,  B01D2257/7022 ,  C01B3/382 ,  C01B3/384 ,  C01B2203/0233 ,  C01B2203/0244 ,  C01B2203/042 ,  C01B2203/046 ,  C01B2203/0475 ,  C01B2203/0485 ,  C01B2203/0495 ,  C01B2203/1241 ,  C01B2203/1258 ,  C01B2203/142 ,  C01B2203/143 ,  C01B2203/147 ,  F25J3/0233 ,  F25J3/0242 ,  F25J3/0252 ,  F25J3/0261 ,  F25J2200/94 ,  F25J2205/04 ,  F25J2205/30 ,  F25J2210/04 ,  F25J2210/06 ,  F25J2210/60 ,  F25J2235/60 ,  F25J2245/02 ,  F25J2280/02

Abstract: A process and to an apparatus for the generation and separation of a mixture of hydrogen and carbon monoxide is provided.

Abstract translation: 提供了一种用于产生和分离氢气和一氧化碳的混合物的方法和装置。

公开(公告)号：US20150033793A1

公开(公告)日：2015-02-05

申请号：US14338982

申请日：2014-07-23

Applicant: UOP LLC

Inventor： John L. Griffiths

IPC: F25J1/00

CPC classification number: F25J1/0022 ,  C10L3/106 ,  F25J1/0045 ,  F25J1/0072 ,  F25J1/0204 ,  F25J3/0209 ,  F25J3/0233 ,  F25J3/0238 ,  F25J3/0257 ,  F25J2205/30 ,  F25J2205/84 ,  F25J2215/04 ,  F25J2220/62 ,  F25J2220/64 ,  F25J2220/66 ,  F25J2220/68 ,  F25J2270/42

Abstract: A process and system for production of liquefied natural gas (LNG) from natural gas. The natural gas is first partially purified by removal of water and other contaminants, followed by partial chilling to freeze some contaminants and to allow for production of a purge stream to remove other contaminants. These contaminants may be removed from the stream. The process has advantages of low cost and improved removal of contaminants.

Abstract translation: 从天然气生产液化天然气（LNG）的过程和系统。 天然气首先通过除去水和其他污染物进行部分纯化，然后部分冷冻以冷冻一些污染物并允许产生吹扫流以除去其它污染物。 这些污染物可以从流中除去。 该方法具有成本低，污染物清除率高的优点。