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发明授权
US07846325B2 Process for the removal of COS and H2S from a synthesis gas stream comprising H2S and COS 有权
从包含H 2 S和COS的合成气流中除去COS和H 2 S的方法

Process for the removal of COS and H2S from a synthesis gas stream comprising H2S and COS
摘要：
The invention provides a process for the removal of COS and H2S from a synthesis gas stream comprising COS and H2S, the process having the steps of: removing H2S from a feed synthesis gas stream with a first solid adsorbent to obtain a first synthesis gas stream, converting COS in the first synthesis gas stream to H2S by contacting the first synthesis gas stream with a COS-hydrolysing catalyst in the presence of water in a hydrolysis zone to obtain a second synthesis gas stream depleted of COS and enriched in H2S; and removing H2S from the second synthesis gas stream by contacting the second synthesis gas stream with a second solid adsorbent in a H2S removal zone to obtain a third synthesis gas stream depleted of H2S and depleted of COS to very low levels.
摘要（中）：

本发明提供了从包含COS和H 2 S的合成气流中除去COS和H 2 S的方法，该方法具有以下步骤：用第一固体吸附剂从原料合成气流除去H 2 S，得到第一合成气流， 通过在水解区中在水的存在下使第一合成气流与COS-水解催化剂接触将第一合成气流中的COS转化为H 2 S，得到耗尽COS并富集H 2 S的第二合成气流; 以及通过在H 2 S去除区中使第二合成气流与第二固体吸附剂接触来从第二合成气流中除去H 2 S，以获得耗尽H 2 S并耗尽COS的第三合成气流至非常低的水平。

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