Sour gas treatment process including dehydration of the gas stream
    1.
    发明授权
    Sour gas treatment process including dehydration of the gas stream 失效
    酸性气体处理工艺包括气流脱水

    公开(公告)号:US5401300A

    公开(公告)日:1995-03-28

    申请号:US143283

    申请日:1993-10-25

    IPC分类号: B01D53/22 B01D53/26 B01D71/52

    摘要: Improved membranes and improved membrane processes for treating gas streams containing hydrogen sulfide and methane, plus water vapor, carbon dioxide or both. The processes rely on the availability of two membrane types, one of which has a high hydrogen sulfide/methane selectivity and a high water vapor/methane selectivity, when measured with multicomponent gas mixtures at high pressures. Based on the different permeation properties of the two membrane types, optimized separation processes can be designed. In favorable cases, the processes can simultaneously dehydrate the gas stream and remove the hydrogen sulfide to very low levels.

    摘要翻译: 改进的膜和改进的膜方法,用于处理含有硫化氢和甲烷,加上水蒸气,二氧化碳或两者的气流。 这些方法依赖于两种膜类型的可用性,其中之一具有高的硫化氢/甲烷选择性和高水蒸气/甲烷选择性,当在高压下用多组分气体混合物测量时。 基于两种膜类型的不同渗透性能,可以设计优化的分离过程。 在有利的情况下,该方法可以同时使气流脱水并将硫化氢除去至非常低的水平。

    Sour gas treatment process
    2.
    发明授权
    Sour gas treatment process 失效
    酸气处理工艺

    公开(公告)号:US5407467A

    公开(公告)日:1995-04-18

    申请号:US143496

    申请日:1993-10-25

    摘要: Improved membranes and improved membrane processes for treating gas streams containing hydrogen sulfide, carbon dioxide, water vapor and methane, particularly natural gas streams. The processes rely on the availability of two membrane types, one of which has a hydrogen sulfide/methane selectivity of at least about 40 when measured with multicomponent gas mixtures at high pressure. Based on the different permeation properties of the two membrane types, optimized separation processes can be designed.

    摘要翻译: 改进的膜和改进的膜方法,用于处理含有硫化氢,二氧化碳,水蒸汽和甲烷,特别是天然气流的气流。 这些方法依赖于两种膜类型的可用性,当在高压下用多组分气体混合物测量时,其中之一具有至少约40的硫化氢/甲烷选择性。 基于两种膜类型的不同渗透性能,可以设计优化的分离过程。

    Gas separation using organic-vapor-resistant membranes and PSA
    7.
    发明授权
    Gas separation using organic-vapor-resistant membranes and PSA 有权
    使用有机 - 蒸气阻隔膜和PSA进行气体分离

    公开(公告)号:US06592650B2

    公开(公告)日:2003-07-15

    申请号:US10105923

    申请日:2002-03-25

    IPC分类号: B01D5304

    摘要: A process for separating a gas from a gas mixture containing an organic compound gas or vapor by a hybrid separation combining adsorption with membrane gas separation, using membranes selective for the gas over the organic compound. The membranes use a selective layer made from a polymer having repeating units of a fluorinated cyclic structure of an at least 5-member ring, and demonstrate good resistance to plasticization by the organic components in the gas mixture under treatment.

    摘要翻译: 一种通过混合分离组合吸附与膜气分离从含有有机化合物气体或蒸气的气体混合物中分离气体的方法,使用对有机化合物上的气体有选择的膜。 膜使用由具有至少5元环的氟化环状结构的重复单元的聚合物制成的选择层,并且在处理的气体混合物中表现出良好的抗塑化性。

    Gas separation using C3+ hydrocarbon-resistant membranes
    8.
    发明授权
    Gas separation using C3+ hydrocarbon-resistant membranes 有权
    使用C3 +耐烃隔膜进行气体分离

    公开(公告)号:US06361582B1

    公开(公告)日:2002-03-26

    申请号:US09574303

    申请日:2000-05-19

    IPC分类号: B01D5322

    摘要: A process for separating a gas from a gas mixture containing the gas and a C3+ hydrocarbon vapor, using gas-separation membranes selective for the gas over the C3+ hydrocarbon vapor. The membranes use a selective layer made from a polymer having repeating units of a fluorinated polymer, and demonstrate good resistance to plasticization by the organic components in the gas mixture under treatment, and good recovery after exposure to liquid aromatic hydrocarbons.

    摘要翻译: 使用对C3 +烃蒸汽上的气体有选择性的气体分离膜,分离气体与含有气体和C3 +烃蒸气的气体混合物的方法。 膜使用由具有氟化聚合物的重复单元的聚合物制成的选择层,并且在处理后的气体混合物中表现出良好的耐化学性,并且在暴露于液体芳族烃之后具有良好的回收率。