发明名称 |
Hydropyrolysis process |
摘要 |
An improved process for producing a methane-enriched gas wherein a hydrogen-deficient carbonaceous material is treated with a hydrogen-containing pyrolysis gas at an elevated temperature and pressure to produce a product gas mixture including methane, carbon monoxide and hydrogen. The improvement comprises passing the product gas mixture sequentially through a water-gas shift reaction zone and a gas separation zone to provide separate gas streams of methane and of a recycle gas comprising hydrogen, carbon monoxide and methane for recycle to the process. A controlled amount of steam also is provided which when combined with the recycle gas provides a pyrolysis gas for treatment of additional hydrogen-deficient carbonaceous material. The amount of steam used and the conditions within the water-gas shift reaction zone and gas separation zone are controlled to obtain a steady-state composition of pyrolysis gas which will comprise hydrogen as the principal constituent and a minor amount of carbon monoxide, steam and methane so that no external source of hydrogen is needed to supply the hydrogen requirements of the process. In accordance with a particularly preferred embodiment, conditions are controlled such that there also is produced a significant quantity of benzene as a valuable coproduct.
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申请公布号 |
US4597776(A) |
申请公布日期 |
1986.07.01 |
申请号 |
US19850693319 |
申请日期 |
1985.01.22 |
申请人 |
ROCKWELL INTERNATIONAL CORPORATION |
发明人 |
ULLMAN, ALAN Z.;SILVERMAN, JACOB;FRIEDMAN, JOSEPH |
分类号 |
C07C1/00;C07C9/04;C10J3/00;(IPC1-7):C10J3/46 |
主分类号 |
C07C1/00 |
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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