Process for removing inorganic components from water
    117.
    发明授权
    Process for removing inorganic components from water 失效
    从水中除去无机成分的方法

    公开(公告)号:US5415681A

    公开(公告)日:1995-05-16

    申请号:US124801

    申请日:1993-09-20

    申请人: Richard W. Baker

    发明人: Richard W. Baker

    摘要: A process for removing inorganic components from water is disclosed. The process involves gas stripping followed by membrane separation treatment of the stripping gas. The stripping step can be carried out using one or multiple gas strippers and using air or any other gas as stripping gas. The membrane separation step can be carried out using a single-stage membrane unit or a multistage unit. Apparatus for carrying out the process is also disclosed. The process is particularly suited for treatment of contaminated groundwater or industrial wastewater.

    摘要翻译: 公开了从水中除去无机成分的方法。 该方法包括汽提,然后进行剥离气体的膜分离处理。 汽提步骤可以使用一种或多种气体汽提器和使用空气或任何其它气体作为汽提气体进行。 膜分离步骤可以使用单级膜单元或多级单元进行。 还公开了用于执行该过程的装置。 该过程特别适用于污染地下水或工业废水的处理。

    Sour gas treatment process including dehydration of the gas stream
    118.
    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。

    Process for removal of components from liquids in batch mode
    119.
    发明授权
    Process for removal of components from liquids in batch mode 失效
    在批量模式下从液体中去除组分的过程

    公开(公告)号:US5389126A

    公开(公告)日:1995-02-14

    申请号:US124935

    申请日:1993-09-21

    摘要: A process for removing components from liquid is disclosed. This process involves batchwise gas-stripping followed by membrane separation treatment of the stripping gas. The stripping step can be carried out by circulating the batch repeatedly around the loop formed by the tank and the stripper for sufficient time until the desired degree of component removal is achieved. An additional tank can also be used to avoid mixing treated and untreated liquid streams. The membrane separation step can be carried out using a single-stage membrane unit or a multistage unit. The process is particularly suited for treatment of industrial streams that are small intermittent streams and vary in composition and concentration.

    摘要翻译: 公开了一种从液体中除去组分的方法。 该方法包括间歇式汽提,然后进行剥离气体的膜分离处理。 汽提步骤可以通过使由批料槽和汽提塔形成的循环周期反复循环足够的时间直到实现所需的除去成分程度来进行。 还可以使用另外的罐来避免混合经处理和未经处理的液体流。 膜分离步骤可以使用单级膜单元或多级单元进行。 该方法特别适用于处理小间歇流并且组成和浓度变化的工业流。