US 11,718,800 B2
Method to prepare an aviation fuel component
Ulla Kiiski, Porvoo (FI); Salla Likander, Porvoo (FI); Kati Sandberg, Porvoo (FI); and Pirjo Saikkonen, Porvoo (FI)
Assigned to NESTE OYJ, Espoo (FI)
Appl. No. 17/780,667
Filed by Neste Oyj, Espoo (FI)
PCT Filed Nov. 23, 2020, PCT No. PCT/FI2020/050789
§ 371(c)(1), (2) Date May 27, 2022,
PCT Pub. No. WO2021/105557, PCT Pub. Date Jun. 3, 2021.
Claims priority of application No. 20196039 (FI), filed on Nov. 29, 2019.
Prior Publication US 2023/0134111 A1, May 4, 2023
Int. Cl. C10G 67/02 (2006.01); C10L 1/08 (2006.01); C10G 69/00 (2006.01); C10G 69/02 (2006.01)
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
OG exemplary drawing
 
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.