发明授权
- 专利标题: Production of methanol via catalytic coal gasification
- 专利标题(中): 通过催化煤气化生产甲醇
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申请号: US296713申请日: 1981-08-27
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公开(公告)号: US4348486A公开(公告)日: 1982-09-07
- 发明人: William J. Calvin , Stuart S. Goldstein , Harry A. Marshall
- 申请人: William J. Calvin , Stuart S. Goldstein , Harry A. Marshall
- 申请人地址: NJ Florham Park
- 专利权人: Exxon Research and Engineering Co.
- 当前专利权人: Exxon Research and Engineering Co.
- 当前专利权人地址: NJ Florham Park
- 主分类号: C07C29/151
- IPC分类号: C07C29/151 ; C10J3/54 ; C07C27/06
摘要:
Methanol is produced by gasifying a carbonaceous feed material with steam in the presence of a carbon-alkali metal catalyst and added hydrogen and carbon monoxide at a temperature between about 1000.degree. F. and about 1500.degree. F. and at a pressure in excess of about 100 psia to produce a raw product gas comprising methane, steam, carbon dioxide, carbon monoxide, hydrogen and hydrogen sulfide; withdrawing the raw product gas from the gasifier and treating it for the removal of steam, particulates, hydrogen sulfide and carbon dioxide to produce a treated gas containing primarily carbon monoxide, hydrogen and methane; separating the treated gas into a methane-rich gas stream and a gas stream containing primarily carbon monoxide and hydrogen; passing the methane-rich gas stream to a steam reforming furnace wherein a portion of the methane is reacted with steam to produce hydrogen and carbon monoxide which is then passed from the steam reforming furnace into the gasifier; passing the gas stream containing primarily carbon monoxide and hydrogen to a methanol synthesis reactor where the carbon monoxide is reacted with the hydrogen in the presence of a methanol synthesis catalyst to form methanol; recovering methanol product from the effluent exiting the methanol synthesis reactor thereby leaving a gas comprised of carbon monoxide, hydrogen, methane and carbon dioxide; and recycling at least a portion of this gas to the separation step of the process.
公开/授权文献
- US6095364A Child-resistant closure for pill containers 公开/授权日:2000-08-01