燕山乙烯裂解炉优化运行措施及成效

MEASURES FOR OPTIMIZING THE OPERATION OF ETHYLENE CRACKING FURNACE IN YANSHAN AND THEIR EFFECTS

介绍了燕山乙烯为优化裂解炉运行采取的一系列措施。通过合理调整裂解炉底部、侧壁燃烧器供热比,调节燃烧空气,以及改造风机稳定炉膛负压,来调整炉膛热通量,以延长裂解炉运行周期。通过应用快速烧焦技术,采用炉墙特种保温涂料来减少散热损失,改造对流段及实施其它措施来提高裂解炉热效率。并应用在线近红外分析技术及模拟计算优化裂解深度以提高高副产品收率。

This article introduces the measures taken by SINOPEC Beijing Yanshan Company to optimize the operation of ethylene cracking furnace. By reasonably adjusting the heat supply ratio of the bottom and side burners in furnace,regulating combustion air and revamping the fan to stabilize furnace vacuum pressure,the furnace heat flux can be adjusted so as to extend the operation cycle of the cracking furnace. By using rapid decoking technology,applying special insulation coating on furnace wall to reduce heat loss,revamping convection section and taking some other measures,the thermal efficiency of the cracking furnace can be improved. In addition,on-line near infrared spectroscopy analysis technology and simulation are used to optimize the cracking depth,so as to improve the yield of high value-added products.