PROCESS FOR THE PRODUCTION OF JET-RANGE HYDROCARBONS

摘要

A method for producing jet-range hydrocarbons includes passing a renewable olefin feedstock comprising C3 to C8 olefins to an oligomerization reactor containing a zeolite catalyst to produce an oligomerized effluent, separating the oligomerized effluent into at least a C7− hydrocarbon stream, a heavy olefin stream, and a jet range olefin stream. At least a portion of the heavy olefin stream is recycled to the oligomerization reactor to dilute the renewable C4 olefin feedstock. The jet range olefin stream may be hydrotreated and separated to provide a jet range hydrocarbon product.

主权项

1. A process for producing jet range hydrocarbons comprising:
oligomerizing a renewable olefin feedstock comprising C3 to C8 olefins in an oligomerization reactor containing a catalyst comprising a MTT zeolite that has not been selectivated, and operating the oligomerization reactor under conditions to produce an oligomerized effluent; separating the oligomerized effluent to produce a light hydrocarbon stream, a naphtha olefin hydrocarbon stream, and a heavy stream comprising C8+ olefins; and, separating the heavy stream into jet range olefin stream and an olefin recycle stream comprising diesel range olefins; and, diluting the renewable olefin feedstock with at least a portion of the olefin recycle stream.