镇海石油化工总厂炼油厂250万吨/年处理量的常减压蒸馏装置在建成投产那年,曾遇到减压系统的真空度抽不上来的问题。这种问题在其他炼油厂建成投产初期也曾有发生。如不及时解决,减压蒸馏无法投产,也将直接造成提升管催化裂化装置由于没有腊油原料的来源而相继无法按期试车投产的严重结果。 Zhenhai Petrochemical Complex refinery 2.5 million tons / year capacity of the vacuum distillation unit was completed and put into operation that year, had encountered vacuum system vacuum pumping up the problem. This kind of problem happened when other refineries were put into production early. If not resolved in time, vacuum distillation can not be put into operation, will also directly lead to improve the catalytic cracking unit because there is no source of wax raw materials have been unable to schedule serious commissioning test results.