CARBON DIOXIDE REMOVAL PROCESS
    1.
    发明申请
    CARBON DIOXIDE REMOVAL PROCESS 审中-公开
    二氧化碳去除方法

    公开(公告)号:WO2012048078A1

    公开(公告)日:2012-04-12

    申请号:PCT/US2011/055045

    申请日:2011-10-06

    Abstract: A process for recovering carbon dioxide from a pressurized hydrocarbon containing feed stream includes the following steps. A high pressure hydrocarbon containing feed stream that comprises at least methane and carbon dioxide is introduced into a first membrane separation unit at a temperature that is above the liquefaction temperature of carbon dioxide, the first membrane separation unit containing one or more membranes that are selective for carbon dioxide over the other components in the hydrocarbon containing feed stream, each membrane having a permeate side and a residue side and allowing for the passing of carbon dioxide to the permeate side to form a first membrane stream on the permeate side of the membrane and the substantial retention of the remaining components in the hydrocarbon containing feed stream to form a second membrane stream on the residue side of the membrane. The second membrane stream is withdrawn for further use. The first membrane stream is compressed. The compressed first membrane stream is cooled using a multi-stream heat exchanger in order to form a compressed, cooled two phase first membrane stream. The compressed, cooled, two phase first membrane stream is separated and purified in a carbon dioxide separation unit to produce a carbon dioxide rich liquid stream and a carbon dioxide lean vapor stream. The carbon dioxide rich liquid stream is recycled to the heat exchanger where the carbon dioxide rich stream is used to provide cooling of the first membrane stream thereby producing a warmer carbon dioxide rich liquid stream. The warmer carbon dioxide rich stream is recovered from the heat exchanger as a high purity carbon dioxide product.

    Abstract translation: 从加压含烃进料流中回收二氧化碳的方法包括以下步骤。 包含至少甲烷和二氧化碳的高压含烃进料流在高于二氧化碳液化温度的温度下引入第一膜分离单元,第一膜分离单元含有一种或多种选择性的膜 二氧化碳超过含烃进料流中的其他组分,每个膜具有渗透侧和残留物侧,并允许二氧化碳通过渗透侧,以在膜的渗透侧形成第一膜流,并且 将剩余组分大量保留在含烃进料流中以在膜的残余侧形成第二膜流。 取出第二个膜流进一步使用。 第一个膜流被压缩。 使用多流热交换器冷却压缩的第一膜流,以形成压缩的,冷却的两相第一膜流。 将压缩的,冷却的两相第一膜流在二氧化碳分离单元中分离和纯化,以产生富含二氧化碳的液体流和贫二氧化碳蒸汽流。 富含二氧化碳的液流被再循环到热交换器中,其中使用富二氧化碳气流来提供第一膜流的冷却,从而产生更温暖的富含二氧化碳的液体流。 较热的富二氧化碳流作为高纯二氧化碳产品从热交换器回收。

    PROCESS FOR THE SEPARATION OF CONTAMINANT OR MIXTURE OF CONTAMINANTS FROM A CH4-COMPRISING GASEOUS FEED STREAM
    3.
    发明申请
    PROCESS FOR THE SEPARATION OF CONTAMINANT OR MIXTURE OF CONTAMINANTS FROM A CH4-COMPRISING GASEOUS FEED STREAM 审中-公开
    从包含CH4的气体进料流中分离污染物或污染物混合物的方法

    公开(公告)号:WO2012055695A1

    公开(公告)日:2012-05-03

    申请号:PCT/EP2011/067651

    申请日:2011-10-10

    Abstract: The invention provides a process for the separation of a contaminant or mixture of contaminants from a CH 4 - comprising gaseous feed stream, comprising the subsequent steps of: a) passing a CH 4 -comprising gaseous feed stream comprising the contaminant or the mixture of contaminants into and through a cold porous body having a temperature below the sublimation temperature of the contaminant or the mixture of contaminants and contacting the CH 4 - comprising gaseous feed stream at elevated pressure with the surface of the cold porous body to obtain a porous body comprising solid contaminant or mixture of contaminants and a contaminant-depleted product gas; and b) reducing the pressure to obtain fluid contaminant or mixture of contaminants and a cold porous body. c) removing the fluid contaminant or mixture of contaminants, wherein the contaminant is selected from CO 2 , hydrogen sulphide, mercaptans, siloxanes and carbonyl sulphide, or a mixture thereof.

    Abstract translation: 本发明提供了用于从含CH4的气态进料流中分离污染物或污染物混合物的方法,其包括随后的步骤:a)将包含污染物或污染物混合物的含CH 4的气态进料流 通过具有低于污染物的升华温度或污染物混合物的温度的冷多孔体,并将其与升高的压力下的包含CH 4的气态进料流与冷多孔体的表面接触,以获得包含固体污染物或混合物的多孔体 的污染物和污染物耗尽的产品气体; 和b)降低压力以获得流体污染物或污染物混合物和冷多孔体。 c)去除流体污染物或污染物混合物,其中污染物选自CO 2,硫化氢,硫醇,硅氧烷和硫化羰,或其混合物。

    METHOD OF REMOVING SOLID CARBON DIOXIDE
    4.
    发明申请
    METHOD OF REMOVING SOLID CARBON DIOXIDE 审中-公开
    去除固体二氧化碳的方法

    公开(公告)号:WO2004020118A1

    公开(公告)日:2004-03-11

    申请号:PCT/EP2003/009575

    申请日:2003-08-27

    Inventor: AMIN, Robert

    Abstract: The invention provides a method of removing solid carbon dioxide from cryogenic equipment, comprising the steps of: (a) introducing a stream including ethane to said cryogenic equipment to convert solid carbon dioxide to liquid form whereby a mixture of liquid ethane and liquid carbon dioxide is formed; and (b) removing the mixture of liquid ethane and carbon dioxide from the cryogenic equipment. In particular, the method can be used in a liquefied natural gas (LNG) plant wherein cryogenic equipment contains LNG, and the method comprises the steps of: (a') removing the LNG from the said cryogenic equipment; (a) introducing a stream including ethane to convert solid carbon dioxide to liquid form whereby a mixture of liquid ethane and liquid carbon dioxide is formed; and (b) removing the mixture of liquid ethane and liquid carbon dioxide from the cryogenic equipment. The result is an effective cleaning method for fouled LNG equipment.

    Abstract translation: 本发明提供了一种从低温设备中除去固体二氧化碳的方法,包括以下步骤:(a)将包含乙烷的物流引入所述低温设备以将固体二氧化碳转化为液体形式,由此液体乙烷和液体二氧化碳的混合物为 形成; 和(b)从低温设备中除去液态乙烷和二氧化碳的混合物。 特别地,该方法可用于液化天然气(LNG)工厂,其中低温设备含有LNG,该方法包括以下步骤:(a)从所述低温设备中除去LNG; (a)引入包含乙烷的流以将固体二氧化碳转化为液体形式,由此形成液体乙烷和液体二氧化碳的混合物; 和(b)从低温设备中除去液态乙烷和液态二氧化碳的混合物。 结果是对污染LNG设备的有效清洁方法。

    DESALINATION USING POSITIVELY BUOYANT OR NEGATIVELY BUOYANT/ASSISTED BUOYANCY HYDRATE AND CONCOMITANT CARBON DIOXIDE CAPTURE YIELDING LIQUID CARBON DIOXIDE
    5.
    发明申请
    DESALINATION USING POSITIVELY BUOYANT OR NEGATIVELY BUOYANT/ASSISTED BUOYANCY HYDRATE AND CONCOMITANT CARBON DIOXIDE CAPTURE YIELDING LIQUID CARBON DIOXIDE 审中-公开
    使用积极的消费者或负责任的消费者/辅助BUOYANCY水泥和可持续的二氧化碳捕获液体二氧化碳的脱盐

    公开(公告)号:WO01004056A1

    公开(公告)日:2001-01-18

    申请号:PCT/US2000/013506

    申请日:2000-05-18

    Abstract: Methods and apparatus for desalination of salt water (and purification of polluted water) are disclosed. Saline (or otherwise polluted) water is pumped to a desalination installation and down to the base of a desalination fractionation column, where it is mixed with hydrate-forming gas or liquid to form either positively buoyant (also assisted buoyancy) or negatively buoyant hydrate. The hydrate rises or sinks or is carried into a lower pressure area and dissociates (melts) into the gas and pure water. In preferred embodiments, residual salt water which is heated by heat given off during formation of the hydrate is removed from the system to create a bias towards overall cooling as the hydrate dissociates endothermically at shallower depths, and input water is passed through regions of dissociation in heat-exchanging relationship therewith so as to be cooled sufficiently for hydrate to form at pressure-depth. The fresh water produced by the system is cold enough that it can be used to provide refrigeration, air conditioning, or other cooling; heat removed from the system with the heated residual water can be used for heating or other applications. In other embodiments, desalination or other purification is carried out in "artificially" or mechanically pressurized vessels, which embodiments may be comparatively mobile. Such pressurized systems can be used to capture carbon dioxide from industrial waste gases and to provide liquid carbon dioxide.

    Abstract translation: 公开了盐水脱盐(和污水净化)的方法和装置。 盐水(或其他污染的)水被泵送到脱盐装置并且直到脱盐分馏塔的底部,在其中与形成水合物的气体或液体混合以形成正浮力(也辅助浮力)或负浮力水合物。 水合物上升或下沉或被运送到较低的压力区域并解离(熔化)到气体和纯水中。 在优选的实施方案中,当在水合物形成期间被排出的热量被加热的残余盐水从体系中除去以产生对整体冷却的偏压,当水合物在较浅的深度处吸热分解时,并且输入的水通过解离区域 与其进行热交换关系,以充分冷却水合物以形成压力深度。 系统产生的淡水足够冷,可用于提供制冷,空调或其他冷却; 用加热的残余水从系统中除去的热量可用于加热或其他应用。 在其它实施方案中,脱盐或其它纯化在“人工”或机械加压的容器中进行,这些实施方案可以相对移动。 这种加压系统可用于从工业废气中捕获二氧化碳并提供液体二氧化碳。

    LIGHT GAS COMPONENT SEPARATION
    7.
    发明申请
    LIGHT GAS COMPONENT SEPARATION 审中-公开
    轻质气体分离

    公开(公告)号:WO2006055324A2

    公开(公告)日:2006-05-26

    申请号:PCT/US2005/040334

    申请日:2005-11-07

    Abstract: A method of separating light component(s), such as helium, from carbon dioxide. A pressurized feed stream (10) is at least partially condensed. The resulting containing light component(s) and carbon dioxide stream (14) is degassed to produce a first vapor stream (22) enriched in the light component(s) and a first liquid stream (20) having entrained light component(s). The first liquid stream (20) is expanded (26) to create another two-phase stream (28) that is degasified to produce a second vapor stream, (36) enriched in the light component(s), and a second liquid stream (38) enriched in carbon dioxide. The second liquid stream (38) is repressurized and vaporized. In case of a supercritical feed (90), the pressurized feed stream (90) is expanded (94) after having been cooled. Thereafter, the feed (98) is degassed to produce the light component enriched vapor stream (102) and a liquid stream enriched in the carbon dioxide (104). The resultant vapor streams, enriched in the light component(s) may be further processed to isolate the light components.

    Abstract translation: 从二氧化碳分离诸如氦的轻组分的方法。 加压进料流(10)至少部分冷凝。 将所得含有的轻组分和二氧化碳流(14)脱气以产生富含光组分的第一蒸气流(22)和具有夹带的光组分的第一液流(20)。 第一液体流(20)膨胀(26)以产生另外的二相流(28),其被脱气以产生富含光组分的第二蒸气流(36)和第二液流(28) 38)富含二氧化碳。 第二液体流(38)被再加压和汽化。 在超临界进料(90)的情况下,加压进料流(90)在冷却后膨胀(94)。 此后,将进料(98)脱气以产生富含轻质成分的蒸气物流(102)和富含二氧化碳(104)的液体物流。 富集光组分的所得蒸汽流可以被进一步处理以隔离光组分。

    ANLAGENEINHEIT ZUR DESORPTION VON KOHLENDIOXID AUS METHANOL
    8.
    发明申请
    ANLAGENEINHEIT ZUR DESORPTION VON KOHLENDIOXID AUS METHANOL 审中-公开
    空调机组FOR二氧化碳从甲醇解吸

    公开(公告)号:WO2004004870A1

    公开(公告)日:2004-01-15

    申请号:PCT/EP2003/004112

    申请日:2003-04-19

    CPC classification number: C10K1/165 B01D53/1425 Y10S62/928

    Abstract: Es wird eine Anlageneinheit zur Desorption von Kohlendioxid und anderen Verunreinigungen aus unter erhöhtem Druck stehendem Methanol beschrieben, wobei die Anlageneinheit mindestens einen oder mehrere, hintereinander angeordnete Entspannungsbehälter, mindestens einen Wärmeaustauscher und mindestens einen Flüssig/Gasabscheider aufweist. Diese Anlageneinheit enthält a) eine Leitung (1), durch die das den Entspannungsbehälter C verlassende, stark abgekühlte Methanol von unten in den Wärmetaustauscher E eingeleitet wird; und b) eine Leitung (2), durch die das erwärmte Methanol oben aus dem Wärmeaustauscher E herausgeführt wird und ihn mit einem Flüssig/Gas-Abscheider verbindet, in dem das restliche, noch im Methanol enthaltene Kohlendioxid weitestgehend desorbiert und abgetrennt wird. Durch diese Anlageneinheit wird die bei der Desorption von Kohlendioxid entstehende Verdunstungskälte in einem Wärmeaustauscher gewonnen und steht dann als wichtige Kälteenergiequelle für für die Absorption zur Verfügung.

    Abstract translation: 它描述了一种设备单元,用于二氧化碳和甲醇的升高的压力的其它杂质的解吸,其特征在于,所述调节单元包括一个或多个连续布置的减压容器中,至少一个热交换器和至少一个液体具有至少/气体分离器。 此调节单元包括:a)一导管(1),通过该离开闪蒸罐C,强烈冷却的甲醇从下方引入WärmetaustauscherÈ; 和b)的管道(2),通过所述被加热的甲醇进料从换热器E的顶部并将其连接到一个液体/气体分离器,其中的残留,还包含在甲醇,二氧化碳主要是解吸和分离。 通过产生二氧化碳蒸发冷却的解吸此调节单元中的热交换器被回收,并且然后可作为吸收制冷能量的重要来源。

    LIGHT GAS COMPONENT SEPARATION
    10.
    发明申请
    LIGHT GAS COMPONENT SEPARATION 审中-公开
    轻质气体分离

    公开(公告)号:WO2006055324A3

    公开(公告)日:2007-01-04

    申请号:PCT/US2005040334

    申请日:2005-11-07

    Abstract: A method of separating light component(s), such as helium, from carbon dioxide. A pressurized feed stream (10) is at least partially condensed. The resulting containing light component(s) and carbon dioxide stream (14) is degassed to produce a first vapor stream (22) enriched in the light component(s) and a first liquid stream (20) having entrained light component(s). The first liquid stream (20) is expanded (26) to create another two-phase stream (28) that is degasified to produce a second vapor stream, (36) enriched in the light component(s), and a second liquid stream (38) enriched in carbon dioxide. The second liquid stream (38) is repressurized and vaporized. In case of a supercritical feed (90), the pressurized feed stream (90) is expanded (94) after having been cooled. Thereafter, the feed (98) is degassed to produce the light component enriched vapor stream (102) and a liquid stream enriched in the carbon dioxide (104). The resultant vapor streams, enriched in the light component(s) may be further processed to isolate the light components.

    Abstract translation: 从二氧化碳分离诸如氦的轻组分的方法。 加压进料流(10)至少部分冷凝。 将所得含有的轻组分和二氧化碳流(14)脱气以产生富含光组分的第一蒸气流(22)和具有夹带的光组分的第一液流(20)。 第一液体流(20)膨胀(26)以产生另外的二相流(28),其被脱气以产生富含光组分的第二蒸气流(36)和第二液流(28) 38)富含二氧化碳。 第二液体流(38)被再加压和汽化。 在超临界进料(90)的情况下,加压进料流(90)在冷却后膨胀(94)。 此后,将进料(98)脱气以产生富含轻质成分的蒸气物流(102)和富含二氧化碳(104)的液体物流。 富集光组分的所得蒸汽流可以被进一步处理以隔离光组分。

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