Method for deacidifying a fluid stream and washing liquid used in such a method
    2.
    发明授权
    Method for deacidifying a fluid stream and washing liquid used in such a method 有权
    在这种方法中使用的流体流和洗涤液体脱酸的方法

    公开(公告)号:US07749309B2

    公开(公告)日:2010-07-06

    申请号:US10505721

    申请日:2003-03-04

    IPC分类号: B01D53/14

    CPC分类号: B01D53/1456 B01D53/1493

    摘要: Disclosed is a method for deacidifying a fluid stream containing acidic gases as contaminants, according to which the fluid stream is brought into intimate contact with a washing liquid in at least one absorption step. Said washing liquid represents an aqueous solution containing a) tertiary aliphatic alkanolamines (alkanolamine A), at least 30 percent by weight of said tertiary aliphatic alkanolamines being 3-dimethylamino-1-propanol, and b) secondary aliphatic amines (activator B), at least 20 percent by weight of said secondary aliphatic amines being piperazin. The fluid stream which has been essentially purified of the acidic gases is then separated from the washing liquid that is loaded with acidic gases.

    摘要翻译: 公开了一种使含有酸性气体的流体流作为污染物脱酸的方法,根据该方法,流体物流在至少一个吸收步骤中与洗涤液体紧密接触。 所述洗涤液表示含有a)叔脂肪族链烷醇胺(链烷醇胺A)的水溶液,至少30重量%的所述叔脂肪烷醇胺为3-二甲基氨基-1-丙醇,和b)仲脂族胺(活化剂B) 所述仲脂族胺的至少20重量%是哌嗪。 已经基本上纯化了酸性气体的流体流然后与装载有酸性气体的洗涤液分离。

    Method for removal of acid gases from a gas flow
    3.
    发明授权
    Method for removal of acid gases from a gas flow 有权
    从气流中除去酸性气体的方法

    公开(公告)号:US07004997B2

    公开(公告)日:2006-02-28

    申请号:US10484161

    申请日:2002-07-19

    IPC分类号: B01D53/14

    CPC分类号: B01D53/1493 B01D53/1456

    摘要: A process is described for removing acid gases from a gas stream in which an acid-gas-containing gas stream in which the sum of the partial pressures of the acid gases does not exceed 1,500 mbar is brought into contact with an aqueous absorbent in an absorption step and an absorbent is used which contains methyldiethanolamine and piperazine at a concentration of at least 8% by weight of the absorbent, an acid-gas-depleted gas stream and an acid-gas-loaded absorbent being obtained.

    摘要翻译: 描述了一种从气流中除去酸性气体的方法,其中含有酸性气体的气流,其中酸性气体的分压之和不超过1,500毫巴,与吸收剂中的吸收剂接触 并且使用吸收剂,其含有浓度为吸收剂的至少8重量%的甲基二乙醇胺和哌嗪,获得的酸性气体贫乏的气体流和具有酸性气体的吸收剂。

    Method for Removing Acid Gases and Ammonia from a Fluid Stream
    4.
    发明申请
    Method for Removing Acid Gases and Ammonia from a Fluid Stream 有权
    从流体流中除去酸性气体和氨的方法

    公开(公告)号:US20070020163A1

    公开(公告)日:2007-01-25

    申请号:US11457199

    申请日:2006-07-13

    IPC分类号: B01D53/40

    摘要: A method is proposed for removing acid gases and ammonia from a fluid stream, according to which 1. in an absorption step the fluid stream comprising the acid gases and ammonia is brought into contact with an aqueous absorption medium, obtaining a fluid stream which is depleted of acid gases and ammonia, and also an absorption medium stream which is charged with acid gases and ammonia and 2. is regenerated in a desorption step, the acid gases and the ammonia being stripped out of the absorption medium and the condensable fractions thereof condensed, obtaining a condensate and also a purified absorption medium stream, which comprises ejecting in part or completely the condensate from the desorption step, or feeding it in part or completely to a distillation column in which ammonia is separated off overhead as aqueous solution or in the pure state and an aqueous bottom stream is obtained which is recycled to the absorption step or the desorption step.

    摘要翻译: 提出了一种从流体流中除去酸性气体和氨的方法,根据该方法,在吸收步骤中,使含有酸性气体和氨的流体流与水性吸收介质接触,获得耗尽的流体流 的酸性气体和氨,以及装有酸性气体和氨的吸收介质流和2.在解吸步骤中再生,酸性气体和氨被从吸收介质中除去,其可冷凝馏分冷凝, 获得冷凝物和净化的吸收介质流,其包括部分或全部地从解吸步骤中排出冷凝物,或将其部分或全部进料到蒸馏塔中,其中氨作为水溶液或纯的 并且获得水底部流,其被循环到吸收步骤或解吸步骤。

    Method for neutralizing a stream of fluid, and washing liquid for use in one such method
    5.
    发明授权
    Method for neutralizing a stream of fluid, and washing liquid for use in one such method 有权
    用于中和流体流的方法,以及用于一种这样的方法的洗涤液体

    公开(公告)号:US06939393B2

    公开(公告)日:2005-09-06

    申请号:US10343001

    申请日:2001-07-24

    IPC分类号: B01D3/00 B01D11/04 B01D53/14

    CPC分类号: B01D53/1493 B01D53/1456

    摘要: A description is given of the use of an alkylenediamine of the type R1HN—X—NHR2, where X is an alkylene radical having from 2 to 9 carbons, R1 is a hydrocarbon radical having from 1 to 6 carbons and R2 is a hydrocarbon radical having from 1 to 6 carbons or is hydrogen (H) for removing sour gases from a sour-gas-containing fluid stream, and of a process for deacidifying a fluid stream of this type and a wash liquid or absorption liquid for use in such a process. According to the invention, in at least one absorption step, the fluid stream is brought into intimate contact with a wash liquid, the wash liquid comprising an aqueous amine solution which comprises at least one tertiary aliphatic alkanolamine having from 2 to 12 carbons and an activator of the above type R1HN—X—NHR2. The fluid stream which is substantially freed from sour gases and the sour-gas-loaded wash liquid are then separated from one another.

    摘要翻译: 给出了使用R 1 HN-X-NHR 2 N型亚烷基二胺的方法,其中X是具有2至9个碳的亚烷基,R 1是具有1至6个碳的烃基,R 2 2是具有1至6个碳的烃基或者是用于从一个或多个碳上除去酸性气体的氢(H) 含酸气流体流,以及用于使这种流体流脱酸的方法和用于这种方法的洗涤液体或吸收液体。 根据本发明,在至少一个吸收步骤中,流体物流与洗涤液体紧密接触,洗涤液体包含胺水溶液,其包含至少一种具有2至12个碳的叔脂族链烷醇胺和活化剂 的上述类型的R 1 HN-X-NHR 2。 然后将基本上不含有酸性气体的流体流和含有负载气体的洗涤液体彼此分离。

    Method for removing acid gas components from gases
    6.
    发明授权
    Method for removing acid gas components from gases 有权
    从气体中除去酸性气体成分的方法

    公开(公告)号:US06436174B1

    公开(公告)日:2002-08-20

    申请号:US09720783

    申请日:2000-12-29

    IPC分类号: B01D5314

    摘要: A process for removing acidic gas constituents, of the group consisting of CO2, H2S, COS, CS2 and mercaptans, from gases, in which, in an absorption step, a dirty gas rich in acidic gas constituents is brought into contact with an absorption medium, as a result of which a clean gas low in acidic gas constituents and an absorption medium laden with acidic gas constituents are obtained, the absorption medium used being a mixture comprising a) from 0.1 to 50% by weight of one or more mono-cyclic or bicyclic nitrogen heterocycles which are unsubstituted and/or monosubstituted or poly-substituted on the carbon by OH, C1-C3 alkyl and/or C1-C3 hydroxyalkyl and which have from 5 to 14 ring atoms and 1 or 2 heterocyclically bound nitrogen atoms per ring as component A, b) from 1 to 60% by weight of a monohydric and/or polyhydric alcohol as component B, c) from 0 to 60% by weight of an aliphatic aminoalcohol as component C, d) from 0 to 98.9% by weight of water as component D, e) from 0 to 35% by weight of K2CO3 as component E, where the sum of components A, B, C, D and E is 100% by weight.

    摘要翻译: 从气体中除去由CO 2,H 2 S,COS,CS 2和硫醇组成的组中的酸性气体组分的方法,其中在吸收步骤中富含酸性气体成分的脏气与吸收介质接触 其结果是,获得了酸性气体成分低的清洁气体和充满酸性气体组分的吸收介质,所用吸收介质是一种混合物,其包含a)0.1至50重量%的一种或多种单环或 在碳上由OH,C1-C3烷基和/或C1-C3羟基烷基未取代和/或单取代或多取代并且每个环具有5至14个环原子和1或2个杂环结合的氮原子的双环氮杂环 作为组分A,b)1至60重量%的作为组分B的一元和/或多元醇,c)0至60重量%的作为组分C的脂族氨基醇,d)0至98.9%由 作为组分D的水的重量,e)从0到35% 作为组分E的K 2 CO 3,其中组分A,B,C,D和E的总量为100重量%。

    Removal of carbon dioxide from flue gases
    7.
    发明授权
    Removal of carbon dioxide from flue gases 有权
    从烟道气中去除二氧化碳

    公开(公告)号:US07887620B2

    公开(公告)日:2011-02-15

    申请号:US12304312

    申请日:2007-06-13

    IPC分类号: B01D53/14

    摘要: A description is given of a process for removing carbon dioxide from gas streams in which the partial pressure of the carbon dioxide is less than 200 mbar, in particular flue gases, the gas stream being contacted with a liquid absorption medium which comprises an aqueous solution (A) of a tertiary aliphatic alkanolamine and (B) an activator of the formula R1—NH—R2—NH2, where R1 is C1-C6-alkyl and R2 is C2-C6-alkylene, the sum of the concentrations of A and B being 2.5 to 7 mol/l, and the molar ratio of B to A being in the range of 1:3 to 1.5:1. The activator is, for example, 3-methylaminopropylamine, the tertiary aliphatic amine methyldiethanolamine, methyldiisopropanolamine or n-butyldiethanolamine. The process permits substantial removal of carbon dioxide and the regeneration of the absorption medium is possible with relatively low energy consumption.

    摘要翻译: 给出了从气流中除去二氧化碳的过程的描述,其中二氧化碳的分压小于200毫巴,特别是烟道气,气流与包含水溶液的液体吸收介质接触( A)的叔脂肪族链烷醇胺和(B)式R1-NH-R2-NH2的活化剂,其中R1是C1-C6-烷基,R2是C2-C6-亚烷基,A和B的浓度之和 为2.5〜7mol / l,B与A的摩尔比为1:3〜1.5:1。 活化剂是例如3-甲基氨基丙胺,叔脂族胺甲基二乙醇胺,甲基二异丙醇胺或正丁基二乙醇胺。 该方法允许基本上去除二氧化碳,并且以相对低的能量消耗可以进行吸收介质的再生。

    PROCESS FOR CONTACTING TWO PHASES WHOSE CONTACT IS ACCOMPANIED BY HEAT EVOLUTION
    8.
    发明申请
    PROCESS FOR CONTACTING TWO PHASES WHOSE CONTACT IS ACCOMPANIED BY HEAT EVOLUTION 有权
    联系人由热成型机接触两个相位的过程

    公开(公告)号:US20090068078A1

    公开(公告)日:2009-03-12

    申请号:US12293209

    申请日:2007-03-16

    IPC分类号: B01D53/62 B01D53/14

    摘要: A method for bringing into contact two phases which are not completely miscible with one another, and whose contact is accompanied by heat development owing to mass transfer and/or chemical reaction, in which a first phase is introduced into the lower region of a contactor and a second phase is introduced into the upper region of the contactor and passed in countercurrent flow to the first phase in the contactor, a treated first phase and an exhausted second phase being obtained, which comprises recirculating a part of the exhausted second phase to the contactor at least one point situated between the upper region and the lower region. In the preferred embodiment, the first phase is a fluid stream comprising acid gases such as CO2, H2S, SO2, CS2, HCN, COS or mercaptans, and the second phase is an absorption medium which comprises an aqueous solution of at least one organic and/or inorganic base.

    摘要翻译: 一种接触两相的方法,它们彼此不完全混溶,并且由于传质和/或化学反应而伴随着热量显影,其中第一相被引入接触器的下部区域, 将第二相引入接触器的上部区域并且以逆流方式流向接触器中的第一相,获得经处理的第一相和排出的第二相,其包括将一部分排出的第二相再循环到接触器 位于上部区域和下部区域之间的至少一个点。 在优选实施方案中,第一相是包含酸性气体如CO 2,H 2 S,SO 2,CS 2,HCN,COS或硫醇的流体物流,第二相是吸收介质,其包含至少一种有机和 /或无机碱。

    Method for obtaining a high pressure acid gas stream by removal of the acid gases from a fluid stream
    9.
    发明授权
    Method for obtaining a high pressure acid gas stream by removal of the acid gases from a fluid stream 有权
    通过从流体流中除去酸性气体来获得高压酸性气流的方法

    公开(公告)号:US07481988B2

    公开(公告)日:2009-01-27

    申请号:US10595749

    申请日:2004-11-05

    摘要: A method for obtaining an acid gas stream having a pressure of from 3 to 30 bar by removal of acid gases from a fluid stream containing H2S, the molar fraction of H2S based on the total amount of acid gases being at least 50 mol %, the method comprising bringing the fluid stream into intimate contact with a liquid absorption medium, thus producing a fluid stream substantially freed from acid gases and an acid-gas-loaded liquid absorption medium; separating the fluid stream and the liquid absorption medium; separating, by heating and optionally by expansion or stripping, the liquid absorption medium into an acid gas stream and a regenerated liquid absorption medium; passing the regenerated liquid absorption medium into a heat exchanger and cooling it there by using part of its thermal energy to heat up the acid-gas-loaded liquid absorption medium; and recirculating the regenerated liquid absorption medium.

    摘要翻译: 一种通过从含有H 2 S的流体流中除去酸性气体来获得压力为3至30巴的酸性气体流的方法,基于酸性气体的总量至少为50摩尔%的H 2 S的摩尔分数, 方法包括使流体流与液体吸收介质紧密接触,从而产生基本上不含酸性气体的流体流和载有酸性气体的液体吸收介质; 分离流体物流和液体吸收介质; 通过加热和任选地通过膨胀或汽提将液体吸收介质分离成酸性气体流和再生液体吸收介质; 将再生的液体吸收介质通入热交换器中并通过使用其热能的一部分来冷却其加热含有酸性气体的液体吸收介质; 并再循环再生液体吸收介质。

    Method for the Removal of Carbon Dioxide From Flue Gases
    10.
    发明申请
    Method for the Removal of Carbon Dioxide From Flue Gases 审中-公开
    从烟气中去除二氧化碳的方法

    公开(公告)号:US20080098892A1

    公开(公告)日:2008-05-01

    申请号:US10592419

    申请日:2005-03-09

    IPC分类号: B01D53/14

    摘要: The invention relates to a method for the removal of carbon dioxide from a gas flow, in which the partial pressure of the carbon dioxide in the gas flow is less than 200 mbar, whereby the gas flow is brought into contact with a liquid absorption agent, comprising an aqueous solution (A) of a tertiary aliphatic amine and (B) an activator of general formula R1-NH-R2-NH2, where R1=C1-C6 alkyl and R2=C2-C6 alkylene. The method is particularly suitable for treatment of flue gases and also relates to an absorption agent.

    摘要翻译: 本发明涉及一种从气流中除去二氧化碳的方法,其中气流中二氧化碳的分压小于200毫巴,由此使气流与液体吸收剂接触, 包括叔脂族胺的水溶液(A)和(B)通式为R 1,-NH-R 2,-NH 2的活化剂, 其中R 1是C 1 -C 6烷基,R 2是C 2 C 6 -C 6亚烷基。 该方法特别适用于烟道气的处理,也涉及吸收剂。