US 12,122,961 B2
System for catalytic cracking of naphtha with mixed spent and regenerated catalyst
Mao Ye, Liaoning (CN); Yinfeng Zhao, Liaoning (CN); Zhongmin Liu, Liaoning (CN); Hailong Tang, Liaoning (CN); Jing Wang, Liaoning (CN); Jinling Zhang, Liaoning (CN); Tao Zhang, Liaoning (CN); and Talal Khaled Al-Shammari, Riyadh (SA)
Assigned to SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom (NL); and DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES, Liaoning (CN)
Appl. No. 17/421,576
Filed by SABIC Global Technologies B.V., Bergen op Zoom (NL); and DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES, Liaoning (CN)
PCT Filed Jan. 28, 2019, PCT No. PCT/IB2019/050688
§ 371(c)(1), (2) Date Jul. 8, 2021,
PCT Pub. No. WO2020/157539, PCT Pub. Date Aug. 6, 2020.
Prior Publication US 2022/0119719 A1, Apr. 21, 2022
Int. Cl. B01J 8/18 (2006.01); B01J 8/24 (2006.01); B01J 35/40 (2024.01); B01J 35/51 (2024.01); C10G 11/18 (2006.01)
CPC C10G 11/182 (2013.01) [B01J 8/1863 (2013.01); B01J 8/1872 (2013.01); B01J 8/24 (2013.01); B01J 35/40 (2024.01); B01J 35/51 (2024.01); B01J 2208/00991 (2013.01); C10G 2300/1044 (2013.01); C10G 2300/4018 (2013.01); C10G 2300/4025 (2013.01); C10G 2300/4093 (2013.01); C10G 2300/701 (2013.01); C10G 2300/703 (2013.01); C10G 2400/20 (2013.01); C10G 2400/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for catalytic cracking of naphtha, the system comprising:
a reaction unit that includes a fast fluidized bed reactor adapted to receive raw material comprising naphtha and to contact the raw material with catalyst so as to cause cracking of the naphtha comprised in the raw material and thereby form gas product and spent catalyst;
a stripping unit, adapted to mix the spent and regenerated catalyst to form a mixed catalyst wherein the stripping unit includes a stripper adapted to separate hydrocarbons from the mixed catalyst and supply a first portion of the mixed catalyst to the fast-fluidized bed reactor and a second portion of the mixed catalyst to the regenerator, wherein the stripping unit is connected to and in fluid communication with fast fluidized bed reactor; and
a regeneration unit that includes a regenerator adapted to regenerate the second portion of the mixed catalyst, wherein the regeneration unit is connected to and in fluid communication with the stripper and the fast fluidized bed reactor.