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    Process for the removal of gas contaminants from a product gas using polyethylene glycols
    1.
    发明授权
    Process for the removal of gas contaminants from a product gas using polyethylene glycols 有权
    使用聚乙二醇从产品气体中除去气体污染物的方法

    公开(公告)号：US06203599B1

    公开(公告)日：2001-03-20

    申请号：US09362359

    申请日：1999-07-28

    申请人： Craig Norman Schubert ,  William I. Echt

    发明人： Craig Norman Schubert ,  William I. Echt

    IPC分类号： B01D5314

    CPC分类号： B01D53/1493 ,  B01D53/14 ,  C10K1/16 ,  C10L3/10

    摘要： The present invention provides a process for removing gas contaminants such as hydrogen sulfide and carbon dioxide from a product gas such as natural gas or synthesis gas. According to the invention the product gas is contacted with a solvent which includes dialkyl ethers of polyethylene glycols and water, and a high pressure recycle loop is utilized to desorb a portion the gas contaminants and co-absorbed product gas from the solvent. The solvent is provided with an amount of water sufficient to increase recovery of co-absorbed product gas while at the same time providing a reduced circulation rate requirement for the solvent and reduced re-compression and cooling requirements for the recycle gas.

    摘要翻译： 本发明提供从诸如天然气或合成气的产物气体中除去诸如硫化氢和二氧化碳的气体污染物的方法。 根据本发明，产物气体与包括聚乙二醇和水的二烷基醚的溶剂接触，并且使用高压循环回路来将气体污染物和共吸收产物气体的一部分从溶剂中解吸。 为溶剂提供足以增加共吸收产物气体回收率的水，同时为溶剂提供降低的循环速率要求，并降低再循环气体的再压缩和冷却要求。