METHOD FOR THE PURIFICATION OF RAW GAS
    3.
    发明申请
    METHOD FOR THE PURIFICATION OF RAW GAS 审中-公开
    纯化气体的方法

    公开(公告)号:WO2012130450A1

    公开(公告)日:2012-10-04

    申请号:PCT/EP2012/001376

    申请日:2012-03-29

    Abstract: A process is disclosed for converting a carbonaceous raw material to a liquid or gaseous carbon based fuel, comprising the steps of a) converting said carbonaceous raw material to a carbon based fuel, b) withdrawing a process gas to be purified comprising hydrogen, a carbon oxide, such as carbon monoxide or carbon dioxide and nitrogen, from a position of the process of step a, c) subjecting the process gas to be purified to a methanation reaction in which the carbon oxide contained in the process gas to be purified are converted to methane; providing a methanated process gas; d) directing the methanated process gas to either a once through ammonia synthesis or an ammonia synthesis loop for converting nitrogen in the gas to ammonia, providing an ammonia containing process gas; e) withdrawing liquid phase ammonia from the ammonia containing process gas to be purified of step d) producing a purified gas with a reduced content of nitrogen and f) directing an amount of the purified gas to a position of the process of step a, wherein the molar flow of carbon in the carbon based fuel is greater than the molar flow of the ammonia withdrawn.

    Abstract translation: 公开了一种用于将碳质原料转化为液态或气态碳基燃料的方法,包括以下步骤:a)将所述含碳原料转化为碳基燃料,b)取出待纯化的工艺气体,包括氢气,碳 氧化物,例如一氧化碳或二氧化碳和氮气,从步骤a的方法的位置,c)使处理气体被纯化成甲烷化反应,其中待纯化的工艺气体中包含的碳氧化物被转化 甲烷; 提供甲烷化工艺气体; d)将甲烷化的工艺气体引导至一次通过的氨合成或用于将气体中的氮转化成氨的氨合成回路,从而提供含氨的工艺气体; e)从待纯化的含氨工艺气体中取出液相氨,步骤d)生产具有降低的氮含量的纯化气体,和f)将一定量的纯化气体引导到步骤a的方法的位置,其中 碳基燃料中碳的摩尔流量大于排出的氨的摩尔流量。

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