公开(公告)号：US20090199591A1

公开(公告)日：2009-08-13

申请号：US12163742

申请日：2008-06-27

Applicant: Jung Han Lee ,  Young Sik Moon ,  Dong Kyu Choi ,  Young Soo Kim

Inventor： Jung Han Lee ,  Young Sik Moon ,  Dong Kyu Choi ,  Young Soo Kim

IPC: F25J3/00 ,  F17C1/00

CPC classification number: F17C7/02 ,  F17C2201/052 ,  F17C2221/033 ,  F17C2221/035 ,  F17C2223/0161 ,  F17C2223/033 ,  F17C2225/0123 ,  F17C2225/0153 ,  F17C2225/033 ,  F17C2225/036 ,  F17C2265/015 ,  F17C2265/05 ,  F17C2270/0105 ,  F17C2270/0113 ,  F17C2270/0123 ,  F25J1/0022 ,  F25J1/0255 ,  F25J1/0278 ,  F25J3/0214 ,  F25J3/0233 ,  F25J3/0242 ,  F25J2210/04 ,  F25J2215/02 ,  F25J2215/62 ,  F25J2215/64 ,  F25J2290/34 ,  F25J2290/62 ,  F25J2290/72

Abstract: Disclosed is a liquefied natural gas composition. The composition contains methane, ethane and propane and butane. The composition contains a substantial amount of butane while being substantially free of hydrocarbon molecules larger than butane.

Abstract translation: 公开了一种液化天然气组合物。 组合物含有甲烷，乙烷和丙烷以及丁烷。 组合物含有大量的丁烷，同时基本上不含大于丁烷的烃分子。

公开(公告)号：US20090151391A1

公开(公告)日：2009-06-18

申请号：US11954778

申请日：2007-12-12

Applicant: Shawn S. Huang ,  Harry J. Crofton ,  G. Dennis Cook ,  Jong Juh Chen

Inventor： Shawn S. Huang ,  Harry J. Crofton ,  G. Dennis Cook ,  Jong Juh Chen

IPC: F25J3/00 ,  G06F17/50 ,  F17C1/00

CPC classification number: F25J1/0022 ,  F25J1/004 ,  F25J1/0052 ,  F25J1/0085 ,  F25J1/0087 ,  F25J1/021 ,  F25J1/0231 ,  F25J1/0238 ,  F25J1/0255 ,  F25J2210/04 ,  F25J2210/62 ,  F25J2220/64 ,  F25J2235/60 ,  F25J2245/02

Abstract: An LNG facility employing a heavies enriching stream to increase the flexibility of the LNG facility by allowing feed gas streams of widely varying compositions to be processed while producing on-spec LNG.

Abstract translation: 采用重质富集流的液化天然气设施，通过允许在生产标准液化天然气的同时处理广泛变化的组合物的进料气流，来增加LNG设施的灵活性。

公开(公告)号：US07404301B2

公开(公告)日：2008-07-29

申请号：US11212798

申请日：2005-08-26

Applicant: Shawn S. Huang ,  Harry J. Crofton ,  Jame Yao ,  Thomas M. Jones ,  Weldon Ransbarger ,  Philip C. Goundry

Inventor： Shawn S. Huang ,  Harry J. Crofton ,  Jame Yao ,  Thomas M. Jones ,  Weldon Ransbarger ,  Philip C. Goundry

IPC: C10L1/04 ,  F25J1/00 ,  F25J3/00

CPC classification number: F25J1/0265 ,  F17C2221/033 ,  F17C2223/0161 ,  F17C2250/0456 ,  F17C2270/0136 ,  F25J1/0022 ,  F25J1/004 ,  F25J1/0045 ,  F25J1/0052 ,  F25J1/021 ,  F25J1/0237 ,  F25J1/0238 ,  F25J1/0255 ,  F25J3/0209 ,  F25J3/0233 ,  F25J3/0238 ,  F25J3/0242 ,  F25J3/0247 ,  F25J2200/02 ,  F25J2200/76 ,  F25J2200/78 ,  F25J2210/06 ,  F25J2215/02 ,  F25J2245/02 ,  F25J2270/02 ,  F25J2270/12 ,  F25J2270/60 ,  F25J2280/02 ,  F25J2290/34

Abstract: A single LNG facility, and operating method therefor, capable of efficiently producing LNG products that meet the varying specifications of different LNG markets.

Abstract translation: 单一的液化天然气设施及其操作方法能够有效地生产符合不同LNG市场不同规格的LNG产品。

公开(公告)号：US06230518B1

公开(公告)日：2001-05-15

申请号：US09401949

申请日：1999-09-23

Applicant: Eric Hahn ,  Jürgen Voit

Inventor： Eric Hahn ,  Jürgen Voit

IPC: F25J100

CPC classification number: F25J3/044 ,  F25J1/0012 ,  F25J1/0037 ,  F25J1/0045 ,  F25J1/0202 ,  F25J1/0255 ,  F25J3/04345 ,  F25J2200/70 ,  F25J2215/40

Abstract: The invention relates to a process and a liquefier for the production of liquid air with an oxygen content of between 16 and 21 mol % in a low-temperature process, whereby atmospheric air is used as a feed gas; in a warm part of the process, H2O, carbon dioxide and contaminants entrained in the air are removed in a purification step, e.g. adsorption; cold is produced by compression and engine expansion of process streams. Liquid air is obtained as a liquid head product in a cold part of the process by low-temperature rectification in a column having less than four theoretical plates. In addition, a liquid bottoms product is obtained in the rectification, used exergetically and vented as a warm residual gas into the atmosphere or used at least partially in the purification step.

Abstract translation: 本发明涉及一种用于在低温过程中生产含氧量为16至21摩尔％的液体空气的方法和液化器，由此使用大气作为进料气体; 在该过程的温暖部分中，在纯化步骤中除去夹带在空气中的H 2 O，二氧化碳和污染物。 吸附; 冷却通过工艺流的压缩和发动机膨胀产生。 通过在具有小于4个理论塔板的塔中进行低温精馏，在该方法的冷部分中获得液体空气作为液体头部产物。 此外，在精馏中获得液体底部产物，其被高效地使用并作为热的残余气体排放到大气中或者至少部分地用于纯化步骤。

公开(公告)号：US09879904B2

公开(公告)日：2018-01-30

申请号：US14670203

申请日：2015-03-26

Applicant: EBARA INTERNATIONAL CORPORATION

Inventor： Hans E. Kimmel

IPC: F25J1/00 ,  F25J1/02

CPC classification number: F25J1/0022 ,  F25J1/0042 ,  F25J1/0244 ,  F25J1/0255 ,  F25J1/0257 ,  F25J2210/42 ,  F25J2215/02 ,  F25J2220/62 ,  F25J2240/30

Abstract: A variable speed liquid LNG expander (X1) and a variable speed two-phase LNG expander (X2) in line, downstream from X1. The rotational speed of both expanders can be controlled and changed independent from each other. The speed of expander X1 and expander X2 is determined in such way that the amount of liquid LNG downstream from the PHS compared to the feed gas supply is maximized and the amount of vapor and boil-off downstream of X2 is minimized.

公开(公告)号：US20170307290A9

公开(公告)日：2017-10-26

申请号：US14670203

申请日：2015-03-26

Applicant: EBARA INTERNATIONL CORPORATION

Inventor： HANS E. KIMMEL

IPC: F25J1/00 ,  F25J1/02

CPC classification number: F25J1/0022 ,  F25J1/0042 ,  F25J1/0244 ,  F25J1/0255 ,  F25J1/0257 ,  F25J2210/42 ,  F25J2215/02 ,  F25J2220/62 ,  F25J2240/30

Abstract: A variable speed liquid LNG expander (X1) and a variable speed two-phase LNG expander (X2) in line, downstream from X1. The rotational speed of both expanders can be controlled and changed independent from each other. The speed of expander X1 and expander X2 is determined in such way that the amount of liquid LNG downstream from the PHS compared to the feed gas supply is maximized and the amount of vapor and boil-off downstream of X2 is minimized.

公开(公告)号：US20140345319A1

公开(公告)日：2014-11-27

申请号：US14364262

申请日：2012-12-10

Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. ,  SHELL OIL COMPANY

Inventor： Alexandre Maria Corte Real Santos

IPC: F25J3/08

CPC classification number: F25J3/08 ,  F25J1/0022 ,  F25J1/004 ,  F25J1/0042 ,  F25J1/0052 ,  F25J1/0055 ,  F25J1/0214 ,  F25J1/0216 ,  F25J1/0237 ,  F25J1/0255 ,  F25J1/0284 ,  F25J1/0292 ,  F25J3/0209 ,  F25J3/0233 ,  F25J3/0257 ,  F25J2200/02 ,  F25J2200/40 ,  F25J2200/50 ,  F25J2200/74 ,  F25J2205/02 ,  F25J2210/06 ,  F25J2230/60 ,  F25J2240/30 ,  F25J2245/02 ,  F25J2245/90 ,  F25J2280/02

Abstract: Nitrogen is removed from a cryogenic hydrocarbon composition. A least a first portion of the cryogenic hydrocarbon composition is fed to a nitrogen stripper column. The nitrogen stripper column operates at a stripping pressure. A stripping vapour is passed into the nitrogen stripper column, comprising at least a stripping portion of a compressed process vapour that has been produced from the nitrogen-stripped liquid which has been depressurized after drawing it from the nitrogen stripper column. Reflux is generated involving partially condensing overhead vapour of the nitrogen stripper column by passing heat from the overhead vapour to an auxiliary refrigerant stream at a cooling duty. An off gas consisting of a, non-condensed, vapour fraction from the overhead vapour is discharged. The cooling duty is adjusted to regulate a heating value of the vapour fraction being discharged.

Abstract translation: 从低温烃组合物中除去氮气。 将低温烃组合物的至少第一部分进料至氮气汽提塔。 氮气汽提塔在汽提压力下运行。 将汽提蒸气送入氮气汽提塔，其至少包括已经从氮气汽提液体中产生的压缩工艺蒸汽的汽提部分，该氮气汽提液体在从氮气汽提塔中抽出后被减压。 产生回流，涉及通过以高温作用将来自塔顶蒸气的热量传递到辅助制冷剂流来部分冷凝氮气汽提塔的塔顶蒸气。 从塔顶蒸气中排出由非冷凝的汽相组成的废气。 调节冷却负荷以调节排出的蒸汽馏分的发热值。

公开(公告)号：US20140026612A1

公开(公告)日：2014-01-30

申请号：US14111242

申请日：2012-04-05

Applicant: Bertrand Demolliens ,  Herve Le Bihan ,  Xavier Traversac

Inventor： Bertrand Demolliens ,  Herve Le Bihan ,  Xavier Traversac

IPC: F25J1/00

CPC classification number: F25J1/0027 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0042 ,  F25J1/0045 ,  F25J1/0202 ,  F25J1/0255 ,  F25J1/0298 ,  F25J3/0625 ,  F25J3/067 ,  F25J2210/02 ,  F25J2210/70 ,  F25J2220/82 ,  F25J2230/30 ,  F25J2230/42 ,  F25J2235/80 ,  F25J2240/30 ,  F25J2245/02 ,  F25J2260/80 ,  F25J2270/02 ,  F25J2270/04 ,  F25J2270/80 ,  F25J2280/02 ,  Y02C10/12

Abstract: This invention relates to a method for liquefying a gas containing at least 60 mol % of CO2, in order to produce at least one liquid product, wherein the gas is cooled in order to form a fluid flow, at least a portion of the liquid or supercritical flow is cooled in a heat exchanger in order to form a cycle fluid having a cycle pressure, the cycle fluid is divided into at least two fractions including an auxiliary fraction, one of the fractions being expanded up to a first pressure in a valve in order to form a biphasic mixture, and then sent to a phase separator. The liquid fraction of the phase separator is vaporized so as to form a vaporized gas in the exchanger, the vaporized gas then being expanded from the first pressure to a second pressure in an expansion means, and then compressed in the cycle compressor and mixed with the first feed gas.

Abstract translation: 本发明涉及一种用于液化含有至少60mol％CO 2的气体的方法，以便产生至少一种液体产物，其中将气体冷却以形成流体流，至少部分液体或 在热交换器中冷却超临界流，以便形成具有循环压力的循环流体，循环流体被分成至少两个馏分，包括辅助馏分，其中一个馏分在阀中膨胀至第一压力 以形成双相混合物，然后送至相分离器。 相分离器的液体馏分蒸发以在交换器中形成汽化气体，然后将蒸发的气体在膨胀装置中从第一压力膨胀至第二压力，然后在循环压缩机中压缩并与 第一次送气

公开(公告)号：US20130291723A1

公开(公告)日：2013-11-07

申请号：US13461046

申请日：2012-05-01

Applicant: Lubo Zhou ,  Shain-Jer Doong ,  Bradley P. Russell ,  Henry Rastelli

Inventor： Lubo Zhou ,  Shain-Jer Doong ,  Bradley P. Russell ,  Henry Rastelli

IPC: B01D53/02

CPC classification number: B01D53/04 ,  B01D53/02 ,  B01D53/14 ,  B01D53/1462 ,  B01D53/261 ,  B01D2252/204 ,  B01D2253/102 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2253/308 ,  B01D2256/24 ,  B01D2256/245 ,  B01D2257/702 ,  B01D2259/414 ,  C10L3/101 ,  C10L2290/08 ,  C10L2290/542 ,  F25J1/0022 ,  F25J1/0255 ,  F25J2205/60 ,  F25J2220/64 ,  F25J2220/68

Abstract: Processes and apparatuses are provided for preparing liquified natural gas from a natural gas feed that comprises C5 to C7 hydrocarbons and C8 or greater hydrocarbons. An exemplary process includes effecting the preferential adsorption of the C8 or greater hydrocarbons from the natural gas feed over adsorption of hydrocarbons having less than 8 carbon atoms to provide a C8-depleted natural gas stream. The process continues with effecting the preferential adsorption of the C5 to C7 hydrocarbons from the C8-depleted natural gas stream over adsorption of hydrocarbons having less than 5 carbon atoms to form a C5 to C8-depleted natural gas stream. The C5 to C7 hydrocarbons are preferentially adsorbed with higher selectivity and capacity than adsorption of the C5 to C7 hydrocarbons during preferentially adsorbing the C8 or greater hydrocarbons. The C5 to C8-depleted natural gas stream is then liquified.

Abstract translation: 提供了从包含C5至C7烃和C8或更高级烃的天然气进料制备液化天然气的方法和装置。 示例性方法包括通过吸附具有小于8个碳原子的烃来优化来自天然气进料的C8或更多烃的优先吸附以提供C8-贫化的天然气流。 该过程继续，通过吸附具有小于5个碳原子的烃形成C5-去除的天然气流，从而优先吸附C5至C7烃以形成C5至C8贫化天然气流。 在优先吸附C8或更多的烃期间，C5至C7烃优先吸附比C5至C7烃的吸附更高的选择性和容量。 然后将C5至C8贫化天然气流液化。

公开(公告)号：US20130192301A1

公开(公告)日：2013-08-01

申请号：US13803195

申请日：2013-03-14

Applicant: Jeremiah J. Rauch ,  Andrew M. Warta ,  Hao Wu ,  David R. Parsnick ,  Sophia J. Dowd

Inventor： Jeremiah J. Rauch ,  Andrew M. Warta ,  Hao Wu ,  David R. Parsnick ,  Sophia J. Dowd

IPC: F25J3/04

CPC classification number: F25J3/04412 ,  F25J1/0249 ,  F25J1/025 ,  F25J1/0251 ,  F25J1/0254 ,  F25J1/0255 ,  F25J3/0409 ,  F25J3/04187 ,  F25J3/042 ,  F25J3/04278 ,  F25J3/04296 ,  F25J3/04812 ,  F25J2245/40 ,  F25J2270/14 ,  F25J2270/40 ,  F25J2270/902

Abstract: A system and method for air separation using a supplemental refrigeration cycle is provided. A portion of the refrigeration required by the air separation plant to produce a liquid product stream is supplied via a supplemental refrigeration circuit configured to direct a cooled refrigerant produced by the turboexpander through the main heat exchanger of the air separation plant. The refrigeration capacity is controlled by removing or adding a portion of the refrigerant in the supplemental refrigeration circuit to adjust the inlet pressure while maintaining a substantially constant volumetric flow rate and substantially constant pressure ratio across the compressor. Removing the refrigerant from the supplemental refrigeration circuit decreases the refrigeration imparted by the supplemental refrigeration circuit and thus decreases the production of the liquid product stream. Adding refrigerant allows for an increase in the refrigeration imparted by the supplemental refrigeration circuit and thus allows for increased production of the liquid product stream.

Abstract translation: 提供了一种使用补充制冷循环进行空气分离的系统和方法。 通过空气分离装置产生液体产物流所需的一部分制冷是通过补充制冷回路来供应的，所述补充制冷回路构造成将由涡轮膨胀机产生的冷却的制冷剂引导通过空气分离装置的主热交换器。 通过去除或添加补充制冷回路中的一部分制冷剂来控制制冷量，以调整入口压力，同时保持压缩机两端的基本恒定的体积流量和基本上恒定的压力比。 从补充制冷回路中除去制冷剂减少了补充制冷回路所产生的制冷量，从而减少了液体产物流的产生。 添加制冷剂允许增加由补充制冷回路产生的制冷，从而允许增加液体产物流的产生。