发明名称 |
PROCESS TO PREPARE A HYDROGEN RICH GAS MIXTURE |
摘要 |
The invention is directed to a process to prepare a hydrogen rich gas mixture from a solid sulphur- and halogen-containing carbonaceous feedstock. The process involves the following steps. Step (a): gasification of the solid carbonaceous feedstock with an oxygen-containing gas to obtain a gas mixture comprising halogen compounds, sulphur compounds, hydrogen and at least 50 vol. % carbon monoxide, on a dry basis. Step (b): contacting the gas mixture with a quench gas or quench liquid to reduce the temperature of the gas mixture to below 900° C. Step (c) contacting the gas mixture with water having a temperature of between 150 and 250° C. to obtain a gas mixture comprising between 50 and 1000 ppm halogen and having a steam to carbon monoxide molar ratio of between 0.2:1 and 0.9:1. Step (d): subjecting the gas mixture obtained in step (c) to a water gas shift reaction wherein part or all of the carbon monoxide is converted with the steam to hydrogen and carbon dioxide in the presence of a catalyst as present in one fixed bed reactor or in a series of more than one fixed bed reactors and wherein the temperature of the gas mixture as it enters the reactor or reactors is between 190 and 230° C. Step (e): carbon dioxide and sulphur compounds are separated from the shifted gas mixture obtained in step (d) by contacting the shifted gas mixture with a solvent comprising dialkyl ethers of polyethylene glycol. |
申请公布号 |
EP2449061(A2) |
申请公布日期 |
2012.05.09 |
申请号 |
EP20100726975 |
申请日期 |
2010.06.28 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
VAN DEN BERG, ROBERT;FLEYS, MATTHIEU SIMON HENRI;GEUZEBROEK, FRANK HAIKO;PRINS, MARK JAN |
分类号 |
C10K3/04;C01B3/16;C10J3/48 |
主分类号 |
C10K3/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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