Process for cleaning gases from gasification units
    32.
    发明授权
    Process for cleaning gases from gasification units 有权
    从气化单元清洗气体的过程

    公开(公告)号:US07618558B2

    公开(公告)日:2009-11-17

    申请号:US11399373

    申请日:2006-04-07

    IPC分类号: C01B3/32 C01B3/34 C01B3/48

    摘要: A process for cleaning gases from a gasification unit comprising the steps of: gasifying a fuel to raw synthesis gas comprising carbon monoxide and steam in a gasification reactor in the presence of a calcium-containing compound and steam removing halogen compounds from the raw synthesis gas catalytic conversion of carbon monoxide and steam in the raw synthesis gas to carbon dioxide and hydrogen in a water gas shift conversion step to provide a shifted gas contacting the shifted gas with a solid sulphur sorbent regenerating the solid sulphur sorbent by passing a stream of steam through the solid sulphur sorbent counter current to the flow direction of the shifted gas to provide a hydrogen sulphide-containing stream of steam transferring the hydrogen sulphide-containing stream of steam from the solid sulphur sorbent directly to the gasification reactor removing the cleaned shifted gas from the solid sulphur sorbent.

    摘要翻译: 一种用于从气化单元清洁气体的方法,包括以下步骤:在含钙化合物的存在下在气化反应器中将燃料气化成包含一氧化碳和蒸汽的原始合成气,并从原料合成气催化除去卤素化合物 在水煤气变换步骤中将原料合成气中的一氧化碳和蒸汽转化为二氧化碳和氢气,以提供转移气体与固体硫吸附剂接触,该固体硫吸附剂通过使蒸汽流通过 固体硫吸附剂逆流到转移气体的流动方向,以提供含硫化氢的蒸汽将含硫化氢的水从固体硫吸附剂直接转移到气化反应器,从固体中去除已清洁的漂移气体 硫吸附剂。