关键词: 蒸汽裂解, 裂解炉, 北方炉, 国产化

Abstract: The development history，direction and current status of steam cracking technology are reviewed. The major progress of steam cracking technology in recent years include the technology related to the radiant coil，energy saving and environmental protection，single furnace capacity increase，revamp of cracking furnace，advanced control and optimization in operation. Some technologies have good effect in operation，and some technologies have problems or need to make improvement. The development history of Sinopec CBL steam cracking technology is reviewed，and the following aspects are included：process technology，major equipment domestic fabrication，engineering design and large-scale of cracking furnace capacity. The application of CBL cracking technology in furnace revamp，Tianjing and Zhenhai 1000 kt/a ethylene unit is introduced. The application of 150 kt/a CBL-Ⅶ cracking furnace and the development of 200 kt/a CBL cracking furnace are also introduced. The bottleneck of steam cracking technology is pointed out to be the anti-coke technology，and the problems solved in the different stages during 30 years developing course are summarized，and then CBL technology finally entered the international market. Also the technical features are introduced，and the advantages of CBL cracking furnace are also introduced.

Key words: steam cracking, cracking furnace, CBL, domestic