The catalytic cracking unit in Changqing Petrochemical Branch Company,CNPC was revamped successfully by using of two-stage riser FCC(TSRFCC)technology.

• 中国石油长庆石化分公司采用两段提升管催化裂化(TSRFCC)技术成功地对其催化裂化装置进行了改造。