发明名称 COMBINATION PROCESS FOR ENHANCED LIGHT OLEFIN PRODUCTION
摘要 The production of light olefins is enhanced with a catalytic reaction zone containing small pore zeolitic and non-zeolitic catalysts which can significantly improve the yield of ethylene and propylene in a process for t he conversion of light olefins having four carbon atoms per molecule and heavier. Specifically, a C4 olefin stream from an ethylene production comple x is converted in a reaction zone over a non-zeolitic catalyst at effective conditions to produce a product mixture containing ethylene and propylene. Ethylene and propylene are separated from the product mixture and recovered. A portion of the remaining heavy hydrocarbons and paraffins may be recycled to the reaction zone for further conversion, or oligomerized to produce valuable downstream products. The additional step of removing iso- olefins from the recycle stream provided significant advantages. The combination process of the present invention may be applied in commercial ethylene plants, in petroleum refining catalytic cracking operations, and in processes for the conversion of oxygenates such as methanol-to-olefins to enhance the production of ethylene and propylene.
申请公布号 CA2297301(A1) 申请公布日期 2001.07.18
申请号 CA20002297301 申请日期 2000.01.18
申请人 UOP LLC 发明人 MARKER, TERRY L.;VORA, BIPIN V.;BARGER, PAUL T.
分类号 C07C4/06 主分类号 C07C4/06
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