【Ten Years of Rapid Development in Chemical Equipment】Operation of China Petrochemical’s First Straight-Through Tube Cracking Furnace from 1996 to 2023

Thread Content

This post was last edited by Desert Fish on 2023-6-14 at 21:31. A decade of significant development in chemical processing equipment – let’s celebrate the prosperity and strength of modern China. This is just a starting point; more participation from everyone will make things even more lively. Haichuan becomes even better with your involvement; we welcome everyone to engage more in discussions on this forum. Everyone should pay attention to safety and know how to handle emergencies. ********************************************* On May 24, 2023, the BA-1103 cracking furnace in Yanshan Petrochemical’s ethylene production facility began operating, marking the successful commissioning of China Petrochemical’s first single-pass tubular cracking furnace. This development opens up new possibilities for the company to adjust its raw material structure, reduce raw material costs, increase ethylene yield, and thus achieve cost savings and improved efficiency. 　　The cracking feedstocks for domestic ethylene plants are mainly naphtha, diesel, and hydrogenation tail oil. In recent years, high crude oil prices have kept the prices of cracking feedstocks at elevated levels. With the successful development of the Fuling shale gas field by Sinopec, progress has been made in making ethylene feedstocks lighter and more diversified, and ethane cracking has become a new development option. 　　Taking advantage of the opportunity for industrial application of straight-through tubular cracking furnaces with high ethane conversion rates, Yanshan Petrochemical’s ethylene plant upgraded the BA-1103 cracking furnace, thereby enabling the installation of Sinopec’s first straight-through tubular cracking furnace at Yanshan Petrochemical. 　　The modified pyrolyzer primarily uses ethane and naphtha as feedstocks, thereby improving the pyrolyzer’s adaptability to different feedstocks. At the same time, the one-way furnace tube has certain advantages in terms of improving processing capacity, enabling higher pyrolysis temperatures, and reducing residence time; it can significantly increase the conversion rate of ethane feedstock while maintaining ethylene selectivity. It is estimated that once a one-way tubular pyrolyzer is put into use, the ethylene yield from the pyrolysis gas at the BA-1103 outlet can increase by 1 percentage point, and the operating cost per pyrolyzer can be reduced by over 15 million yuan per year.