METHODS AND APPARATUS FOR PRODUCING JET-RANGE HYDROCARBONS

摘要

Methods and apparatus are provided for producing jet-range hydrocarbons from biorenewable sources, such as oligomerizing C3-C8 biorenewable olefins, for example, derived from C3-C8 alkanol products of fermentation of biomass. Production of jet-range hydrocarbons is increased by employing an additional oligomerization zone for oligomerizing naphtha separated from the effluent of a primary oligomerization zone wherein the C3-C8 biorenewable olefins were first subjected to oligomerization.

主权项

1. A method for producing jet-range hydrocarbons comprising:
providing an olefin stream comprising one or more biorenewable C3-C8 olefins to a primary oligomerization zone comprising an oligomerization catalyst to produce a primary oligomerized effluent; separating the primary oligomerized effluent to produce a jet-range hydrocarbon stream and a naphtha stream comprising primarily C5-C10 olefins; and providing the naphtha stream to a naphtha oligomerization zone to produce a secondary oligomerized effluent, wherein the naphtha oligomerization zone comprises an oligomerization catalyst which is the same or different from the oligomerization catalyst of the primary oligomerization zone.