CPC C10G 67/02 (2013.01) [C10L 1/08 (2013.01); C10G 2300/1014 (2013.01); C10G 2300/1059 (2013.01); C10G 2300/1077 (2013.01); C10G 2300/301 (2013.01); C10G 2300/308 (2013.01); C10G 2300/4006 (2013.01); C10G 2300/4012 (2013.01); C10G 2300/4018 (2013.01); C10G 2300/4081 (2013.01); C10G 2400/08 (2013.01); C10L 2200/043 (2013.01); C10L 2270/04 (2013.01); C10L 2290/24 (2013.01); C10L 2290/543 (2013.01)] | 20 Claims |
1. A method for producing aviation fuel component, the method comprising:
a) providing a feedstock containing 75-95% by weight fossil hydrotreatment feed and 5-25% by weight of a second feed, containing esters of fatty acids and rosins, free fatty acids and resin acids;
b) subjecting the feedstock to hydrotreatment reaction conditions to produce a hydrotreated stream;
c) separating at least part of the hydrotreated stream to:
a fraction boiling below 180° C. at atmospheric pressure,
a fraction boiling between 180° C. and 360° C. at atmospheric pressure, and
a fraction boiling above 360° C. at atmospheric pressure;
d) subjecting at least part of the fraction boiling above 360° C. at atmospheric pressure to hydrocracking reaction conditions to produce a hydrocracked stream;
e) admixing at least part of the hydrocracked stream with at least part of the hydrotreated stream to provide a fractionation stream;
f) separating the fractionation stream at least to:
a fraction boiling below 180° C. at atmospheric pressure,
a fraction boiling between 180° C. and 360° C. at atmospheric pressure, and
a fraction boiling above 360° C. at atmospheric pressure; and
g) separating the aviation fuel component from one or more fractions boiling between 180° C. and 360° C. at atmospheric pressure.
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