发明授权
- 专利标题: Method for improving gasification process rates and yields by means of electrophilic aromatic substitution pretreatment of coal
- 专利标题(中): 通过煤的亲电芳烃取代预处理改善气化过程速率和产率的方法
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申请号: US720144申请日: 1976-09-03
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公开(公告)号: US4072475A公开(公告)日: 1978-02-07
- 发明人: Richard H. Schlosberg , Franklin J. Wright , Ronald L. Hartgerink
- 申请人: Richard H. Schlosberg , Franklin J. Wright , Ronald L. Hartgerink
- 申请人地址: NJ Linden
- 专利权人: Exxon Research & Engineering Co.
- 当前专利权人: Exxon Research & Engineering Co.
- 当前专利权人地址: NJ Linden
- 主分类号: C10B57/08
- IPC分类号: C10B57/08 ; C10J3/00 ; C10L9/02
摘要:
Coal is electrophilically aromatically substituted (i.e., alkylated or acylated) in the presence of an alkylating or acylating agent with or without a catalyst under mild conditions to give a treated coal product. This treated coal product may then be solvent extracted to give an extract and an upgraded coal residue, with this residue being subjected to a gasification process procedure or the treated coal product may be subjected to gasification process procedures without any prior extraction being performed. By means of either technique, a material is prepared for which the rate of gasification and the yield of desired product upon gasification is dramatically increased when compared with nonelectrophilically aromatically substituted material (i.e., raw coal). An improved gasification process is disclosed comprising the steps of electrophilically aromatically substituting coal and subjecting such pretreated coal, either extracted or unextracted to gasification process techniques.
公开/授权文献
- US5756018A Footed plastic bottle 公开/授权日:1998-05-26