中国石化股份有限公司茂名分公司的第三套重油催化裂化装置余热锅炉由于长期不能正常运行,于1999年、2000年、2003年三次对该炉进行了技术改造,促进了该炉长周期运转,解决了锅炉低温露点腐蚀、过热能力不足、积灰严重、排烟温度高的问题,节能效果显著,催化裂化装置能耗由改造前的4600MJ/t下降到2600MJ/t。 As the third set of waste heat boiler of the heavy oil catalytic cracking unit of Maoming Branch of Sinopec Corp. failed to operate normally for a long time, the furnace was revamped three times in 1999, 2000 and 2003 to promote long period operation of the furnace, The invention solves the problems of low temperature dew point corrosion of the boiler, insufficient overheating capability, serious dust accumulation and high exhaust gas temperature, and has obvious energy-saving effect. The energy consumption of a catalytic cracking unit is reduced from 4600MJ / t before the transformation to 2600MJ / t.