发明名称 |
Liquid contacting of post-quench effluent vapor streams from oxygenate to olefins conversion to capture catalyst fines |
摘要 |
A process is provided for converting oxygenate to olefins from a fluidized bed reactor which comprises removal of catalyst fines from a quenched vaporous effluent by contacting with a liquid low in catalyst fines content, e.g., oxygenate feedstock, or by-product water from the oxygenates to olefins conversion which is stripped and/or filtered. The process typically comprises: contacting a feedstock comprising oxygenate with a catalyst comprising a molecular sieve under conditions effective to produce a deactivated catalyst having carbonaceous deposits and a product comprising the olefins; separating the deactivated catalyst from the product to provide a separated vaporous product which contains catalyst fines; quenching the separated vaporous product with a liquid medium containing water and catalyst fines, in an amount sufficient for forming a light product fraction comprising light olefins and catalyst fines and a heavy product fraction comprising water, heavier hydrocarbons and catalyst fines; treating the light product fraction by contacting with a liquid substantially free of catalyst fines to provide a light product fraction having reduced catalyst fines content and a liquid fraction of increased fines content; compressing the light product fraction having reduced catalyst fines content; and recovering the light olefins from the compressed light product fraction.
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申请公布号 |
US2005027152(A1) |
申请公布日期 |
2005.02.03 |
申请号 |
US20030629963 |
申请日期 |
2003.07.30 |
申请人 |
VAN EGMOND COR F.;DING ZHONG YI |
发明人 |
VAN EGMOND COR F.;DING ZHONG YI |
分类号 |
C07C1/20;C10G3/00;(IPC1-7):C07C1/00 |
主分类号 |
C07C1/20 |
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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