US 11,708,536 B2
Method for reducing fouling in catalytic cracking
Ville Paasikallio, Porvoo (FI); Blanka Toukoniitty, Porvoo (FI); and Jukka-Pekka Pasanen, Porvoo (FI)
Assigned to NESTE OYJ, Espoo (FI)
Appl. No. 16/959,034
Filed by NESTE OYJ, Espoo (FI)
PCT Filed Dec. 20, 2018, PCT No. PCT/EP2018/086112
§ 371(c)(1), (2) Date Jun. 29, 2020,
PCT Pub. No. WO2019/129626, PCT Pub. Date Jul. 4, 2019.
Claims priority of application No. 20176186 (FI), filed on Dec. 29, 2017.
Prior Publication US 2020/0339895 A1, Oct. 29, 2020
Int. Cl. C10G 69/04 (2006.01); C10G 75/00 (2006.01); C10L 1/04 (2006.01)
CPC C10G 69/04 (2013.01) [C10G 75/00 (2013.01); C10L 1/04 (2013.01); C10G 2300/1007 (2013.01); C10G 2300/1011 (2013.01); C10G 2300/4081 (2013.01); C10G 2400/02 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of producing a cracking product, the method comprising:
subjecting a recycled fossil-based feedstock containing metallic impurities and reactive components to a heat treatment;
evaporating the heat-treated feedstock to produce distillate(s) and a residue fraction containing reacted metallic impurities of the recycled fossil-based feedstock;
hydrotreating a fraction of the distillate(s) boiling at or above 100° C. to produce a hydrotreated distillate; and
performing catalytic cracking of the hydrotreated distillate as a feed component of a feed in a presence of a solid acid catalyst;
wherein a heating temperature during the heat treatment is at least 290° C. and wherein the heat treatment is carried out for at least 1 minute,
wherein the heat treatment is carried out at a pressure of 2.0 bar or more,
wherein a cracking temperature is 510° C. or more; and
wherein the feed of the catalytic cracking comprises: a biomass-based feed component in addition to the hydrotreated distillate.