Production of propylene by dehydration and Skeletal isomerization of isobutanol simultaneous metathesis followed on acid Catalysts

摘要

Comprising: (a) to introduce in a reactor comprising (a) a current isobutanol, optionally Water,Optionally an Inert Component; (b) contacting the stream with a catalyst in a reactor under conditions effective to dehydrate and isomerizar Skeleton of at least a portion of the isobutanol to create a mixture of N - butanes and isobutene; (c) recover from such a reactor (b) other, remove the water,The Inert Component if lohuboiera and isobutanol become if I and get a mixture of N - butanes and isobutene; (d) to fractionate the mixture to obtain a stream of N - butanes (n) and remove the essential part of isobutene optionally recycled to the Reactor (Dehydrated) Tion / isomerization STEP (b); (e) to send the current (n) a metathesis reactor.Optionally in the presence of ethylene under conditions effective to produce propylene; (f) to recover the metathesis reactor which comprises a current (P) essentially unreacted propylene, N - butanes, Heavy ProductsOptionally unreacted Ethylene; (g) split the current (P) to recover and Recycle the propylene optionally - butanes unreacted and reacted to Ethylene no metathesis reactor