Natural gas deacidizing method
    3.
    发明授权
    Natural gas deacidizing method 失效
    天然气脱酸法

    公开(公告)号:US07018450B2

    公开(公告)日:2006-03-28

    申请号:US10678126

    申请日:2003-10-06

    IPC分类号: B01D53/14

    摘要: The natural gas is successively contacted in column CA with a relatively methanol-rich solvent flowing in through line 4, then with a relatively poor solvent flowing in through line 9. The acid gas-containing solvent recovered through line 3 at the bottom of column CA is expanded through valves V1 and V2 to release acid gases through line 6. A fraction of the expanded solvent is distilled in column CR. The regenerated solvent obtained at the bottom of column CR is sent to the top of column CA through line 9. A second fraction of the expanded solvent is mixed with a solvent drawn off from column CR at an intermediate point between the bottom and the top of this column. This mixture of solvents is sent through line 4 into column CA.

    摘要翻译: 天然气在塔CA中依次与相对富含甲醇的溶剂在管线4中流动,然后相对较差的溶剂通过管线9流动。通过管线3在塔CA底部回收的含酸性气体的溶剂 通过阀V 1和V 2膨胀以通过管线6释放酸性气体。在CR塔中蒸馏出一部分膨胀的溶剂。 在塔CR底部获得的再生溶剂通过管线9送入塔CA的顶部。将第二部分的发泡溶剂与从塔CR排出的溶剂在塔底部和顶部之间的中间点混合 这一列。 这种溶剂混合物通过管线4送入CA。

    Sour natural gas treating method
    4.
    发明授权
    Sour natural gas treating method 失效
    酸天然气处理方法

    公开(公告)号:US07121115B2

    公开(公告)日:2006-10-17

    申请号:US10726506

    申请日:2003-12-04

    IPC分类号: F25J3/00 B01D47/00 B01D53/14

    CPC分类号: C10L3/102 C10L3/10

    摘要: The invention relates to a method for treating a natural gas, saturated or not with water, containing essentially hydrocarbons, a substantial amount of hydrogen sulfide and possibly carbon dioxide. The method of the invention comprises a condensation stage intended to condense a major part of the water, a distillation stage wherein a gaseous effluent depleted in hydrogen sulfide and substantially free of water is recovered, and a contacting stage wherein the gaseous effluent from the previous stage is contacted with a solvent so as to obtain a treated gas substantially free of hydrogen sulfide and possibly of carbon dioxide.

    摘要翻译: 本发明涉及一种用水处理天然气的方法,该天然气主要含有烃,大量的硫化氢和可能的二氧化碳。 本发明的方法包括用于冷凝大部分水的冷凝阶段,其中回收耗尽硫化氢并基本上不含水的气态流出物的蒸馏阶段,以及接触阶段,其中来自前一阶段的气态流出物 与溶剂接触,以获得基本上不含硫化氢和可能的二氧化碳的处理气体。

    Process for pretreating a natural gas containing acid gases
    5.
    发明授权
    Process for pretreating a natural gas containing acid gases 有权
    用于预处理含有酸性气体的天然气的方法

    公开(公告)号:US06735979B2

    公开(公告)日:2004-05-18

    申请号:US09960292

    申请日:2001-09-24

    IPC分类号: F25J300

    CPC分类号: B01D53/1462 Y10S203/08

    摘要: A process for pretreating a very acid natural gas containing a substantial amount of hydrogen sulfide (H2S), possibly combined with carbon dioxide (CO2), includes at least a stage wherein the initial natural gas is contacted in a distillation column with a liquid condensate itself resulting from cooling of the gaseous fraction obtained during the contacting stage. This solution allows to eventually recover at a lower cost a gas enriched in methane, depleted in hydrogen sulfide and freed from substantially all of the water it contains, and a liquid phase containing most of the hydrogen sulfide, substantially all of the water and depleted in hydrocarbon. Control of the thermodynamic conditions during the stages that characterize the process, according to the water content of the gas during treatment, allows progressive exhaustion of the water contained in the gas while preventing hydrates formation.

    摘要翻译: 用于预处理含有大量硫化氢(H 2 S),可能与二氧化碳(CO 2)组合的非常酸性天然气的方法至少包括一个阶段,其中初始天然气在蒸馏塔中与液体冷凝物本身接触 由于在接触阶段期间获得的气态馏分的冷却而产生。 该溶液允许最终以更低的成本回收富含甲烷的气体,贫化硫化氢并从其所含的基本上所有的水中除去,以及含有大部分硫化氢的液相,基本上所有的水都被耗尽 烃。 根据处理过程中气体的含水量,在表征过程的阶段期间的热力学条件的控制允许逐渐耗尽包含在气体中的水,同时防止水合物形成。

    Method for processing a natural gas with extraction of the solvent contained in the acid gases
    7.
    发明授权
    Method for processing a natural gas with extraction of the solvent contained in the acid gases 失效
    通过萃取酸性气体中所含的溶剂来处理天然气的方法

    公开(公告)号:US07459011B2

    公开(公告)日:2008-12-02

    申请号:US11057011

    申请日:2005-02-14

    IPC分类号: B01D53/14

    CPC分类号: C10L3/10

    摘要: The natural gas arriving through pipe 1 is deacidified by being brought into contact with a solvent in zone C. The solvent charged with acid compounds is regenerated in zone R. The acid gases, released into pipe 5 upon regeneration, include a quantity of solvent. The method enables the solvent contained in the acid gases to be extracted. In zone ZA, the acid gases are brought into contact with a non-aqueous ionic liquid whose general formula is Q+ A−, where Q+ designates an ammonium, phosphonium, and/or sulfonium cation, and A− designates an anion able to form a liquid salt. The solvent is removed from the acid gases evacuated through pipe 6. The ionic liquid charged with solvent is regenerated by heating in an evaporator DE. The ionic liquid regenerated is recycled through pipes 8 and 9 to zone ZA. The solvent is evacuated through pipe 13.

    摘要翻译: 通过管道1到达的天然气通过与区域C中的溶剂接触而脱酸。在酸性化合物中加入的溶剂在区域R中再生。再生时释放到管道5中的酸性气体包括一定量的溶剂。 该方法能够提取酸性气体中所含的溶剂。 在区域ZA中,酸性气体与通式为Q + A-的非水性离子液体接触,其中Q +表示铵,鏻和/或锍阳离子,A-表示能形成 液体盐 从通过管道6排出的酸性气体中除去溶剂。加入溶剂的离子液体通过在蒸发器DE中加热而再生。 再生的离子液体通过管道8和9循环到区域ZA。 溶剂通过管13排出。

    Method of collecting mercaptans contained in a gaseous feed
    9.
    发明授权
    Method of collecting mercaptans contained in a gaseous feed 有权
    收集气态饲料中所含硫醇的方法

    公开(公告)号:US07192565B2

    公开(公告)日:2007-03-20

    申请号:US11194557

    申请日:2005-08-02

    IPC分类号: B01D53/48 C01B17/20

    CPC分类号: C10L3/10

    摘要: The gaseous feed flowing in through line 1 is contacted in contacting zone ZA with a liquid solvent flowing in through line 2. The solvent comprises between 0.001% and 100% by weight of a liquid olefin. Contacting in zone ZA is carried out in the presence of an acid catalyst. The purified gaseous feed is discharged from zone ZA through line 3. The sulfide-laden solvent is discharged through line 4, then regenerated in unit RE. The regenerated solvent is recycled through lines 7 and 2 to zone ZA.

    摘要翻译: 通过管线1流动的气态进料在接触区ZA中与通过管线2流动的液体溶剂接触。溶剂包含0.001至100重量%的液体烯烃。 ZA区在酸催化剂存在下进行接触。 纯化的气体进料通过管线3从区域ZA排出。含硫化物的溶剂通过管线4排出,然后在单元RE中再生。 再生的溶剂通过管线7和2再循环到区域ZA。

    Method for processing a natural gas with extraction of the solvent contained in the purified natural gas
    10.
    发明申请
    Method for processing a natural gas with extraction of the solvent contained in the purified natural gas 失效
    通过提取纯化天然气中所含的溶剂来处理天然气的方法

    公开(公告)号:US20050205468A1

    公开(公告)日:2005-09-22

    申请号:US11057026

    申请日:2005-02-14

    IPC分类号: B01D53/14 C10L3/10 C10G27/00

    摘要: The natural gas arriving through pipe 1 is deacidified by being brought into contact with a solvent in column C2. The solvent charged with acid compounds is regenerated in zone R. The purified gas evacuated by pipe 9 includes some of the solvent. The method enables the solvent contained in the purified gas to be extracted. In zone ZA, the purified gas is brought into contact with a non-aqueous ionic liquid whose general formula is Q+ A−, where Q+ designates an ammonium, phosphonium, and/or sulfonium cation, and A− designates an anion able to form a liquid salt. The solvent-impoverished purified gas is evacuated through pipe 17. The ionic liquid charged with solvent is regenerated by heating in an evaporator DE. The solvents separated from the ionic liquid in evaporator DE are recycled.

    摘要翻译: 通过管道1到达的天然气通过与C 2中的溶剂接触而脱酸。在R区中再生含有酸性化合物的溶剂。由管9抽出的净化气体包括一些溶剂。 该方法能够提纯纯化气体中所含的溶剂。 在区域ZA中,净化气体与通式为Q +的非水离子液体接触,其中Q + >表示铵,鏻和/或锍阳离子,A>表示能够形成液体盐的阴离子。 将溶剂贫化的净化气体通过管道17抽真空。通过在蒸发器DE中加热来再生装有溶剂的离子液体。 在蒸发器DE中与离子液体分离的溶剂被再循环。