专利名称 | Process for the conversion of methanol to light olefins and catalyst used for such process | 申请号 | US19930054591 | 专利类型 | US | 公开(公告)号 | US5367100 | 公开(授权)日 | 1994.11.22 | 申请(专利权)人 | 中国科学院大连化学物理研究所 | 发明(设计)人 | XINGCHUN WANG (CN); GONGWEI WANG (CN); GUOQUAN CHEN (CN); MULIANG YING (CN) | 主分类号 | B01J29/28 | IPC主分类号 | B01J29/28;C07C1/20 | 专利有效期 | Process for the conversion of methanol to light olefins and catalyst used for such process 至Process for the conversion of methanol to light olefins and catalyst used for such process | 法律状态 | 说明书摘要 | A zeolite catalyst from ZSM-5 modified with phosphorus, rare earth elements and pore structure regulator is used for methanol/dimethyl ether conversion to light olefins. High temperature, non-recycling, continuous-running process is realized in the reactor system, comprising a dehydration reactor and several (2-n) adiabatic, fixed bed cracking reactors, loaded with the catalyst in multi-stage packing and operated in reaction regeneration cycles. The catalyst possesses high activity, high selectivity, good hydrothermal stability and long reaction life time. Operation of 100% methanol conversion and >85% C2-C4 selectivity has been performed in a reactor system of the scale 0.7-1 ton CH3OH/day for >600 hours on stream and with reaction time of single cycle >24 hours. |
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