Abstract: For the first time in the world, SINOPEC Engineering Incorporation integrated and developed technologies such as overlapping two stage regenerator, catalyst cooler for high-pressure steam generation, wet wound forced BFW pump and dual function waste heat boiler, to develop high-pressure steam generation and energy recovery technology of catalytic cracking unit. This technology makes full use of the characteristics of RFCC unit with large steam production load and high thermal energy temperature level, and changes the steam generated by catalyst cooler and waste heat boiler from medium-pressure grade to high-pressure grade, which is conducive to the step-by-step utilization of steam. The technology can remarkablely reduce the energy consumption of RFCC unit by 125.6~167.5 MJ/t, which is equivalent to a reduction of 7%~10%. The technology has been successfully applied to the 2.8 MM TPY RFCC unit of SINOPEC Jingmen Company, which has reduced the coal consumption of the whole plant by 200~250 thousand metric tons per year. The high-pressure steam generation and energy recovery technology has greatly reduced the carbon emission and flue gas pollutant emission of the whole plant, with remarkable economic and social benefits.

Key words: residue fluid catalytic cracking, high pressure steam, catalyst cooler, BFW pump, waste heat boiler

摘要： 中国石化工程建设有限公司在全球首次集成和开发了重叠式两段不完全再生、发生高压蒸汽外取热器、湿绕组型强制循环热水泵和双功能焚烧式余热锅炉等技术，形成了催化裂化装置高压蒸汽发生和能量回收技术，充分利用重油催化裂化装置产汽负荷大、热能温位高的特点，将外取热器和余热锅炉发生蒸汽由中压等级提高到高压等级，有利于蒸汽逐级利用，可以降低催化裂化装置能耗125.6~16.5 MJ/t，相当于降低能耗7%～10%，节能效果显著。该技术成功应用于中国石化荆门分公司2.8 Mt/a重油催化裂化装置，使荆门分公司全厂煤炭用量减少 200～250 kt/a，大幅降低了全厂碳排放量及烟气污染物排放量，经济效益和社会效益显著。

关键词: 重油催化裂化, 高压蒸汽, 外取热器, 循环热水泵, 余热锅炉