Etherification--hydrogenation process

专利名称：Etherification--hydrogenation process发明人：Dennis Hearn,Gary R. Gildert,Willibrord A.

Groten

申请号：US08/600251申请日：19960212公开号：US05628880A公开日：19970513

摘要：A process for removing dienes from etherification uses a hydrogenation zone inthe reactor distillation column above the etherification zone. MTBE is produced and theunreacted C.sub.4 stream is also subjected to selective hydrogenation of the butadienecontained in the C.sub.4 feed stream. The C.sub.4 stream is first contacted with methanolin the etherification zone where the MTBE is distilled downward. The unreacted C. sub.4 'sthen are subjected to selective hydrogenation in the hydrogenation zone where

butadiene in the overhead raffinate is reduced by over 90%. The hydrotreated C.sub.4 'sare thus suitable for cold acid alkylation or other use wherein butadiene is harmful.

申请人：CHEMICAL RESEARCH & LICENSING COMPANY

代理人：Kenneth H. Johnson

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