Process for producing jet fuel from isomerizing a biorenewable feed
AssigneeUop LLC
InventorsStanley Joseph Frey, Haiyan Wang, Andrea G. Bozzano
Life of this patent
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Abstract
A new catalyst hydroisomerizes C18 paraffins from fatty acids to a high degree to produce a composition with acceptable freeze point which retains 18 carbon atoms in the hydrocarbon molecule for jet fuel. We have discovered a fuel composition comprising at least 14 wt % hydrocarbon molecules having at least 18 carbon atoms and a freeze point not higher than −40° C. The composition also may exhibit a exhibiting a final boiling point of no more than 300° C. The hydroisomerization process can be once through or a portion of the product diesel stream may be selectively hydrocracked or recycled to hydroisomerization to obtain a fuel composition that meets jet fuel specifications.
Claims21
A composition of fuel comprising at least 14 wt % hydrocarbon molecules having at least 18 carbon atoms and a freeze point not higher than −40° C.
The degree of isomerization can be characterized by the conversion of normal C18 paraffins with a pure boiling point at 317° C. to iso-C18 paraffins boiling at 311° C.
A hydroisomerization catalyst comprising a metal component, a molecular sieve and a metal oxide binder, wherein about 40 to about 65 wt % of said metal component is dispersed on said molecular sieve and about 40 to about 65 wt % of said metal component is dispersed on said metal oxide binder.
Dependencies are inferred from the claim text.