苯乙烯工艺技术改进及应用

Technical improvement and implementation in styrene production

山东齐鲁石化工程有限公司苯乙烯生产原工艺中存在粗苯乙烯脱水效果较差,蒸汽过热炉能耗较高,苯乙烯返回罐中冷、热苯乙烯的混合程度差,罐区大多数储罐的放空气直接排入大气等问题。这些问题导致原工艺能耗、物耗高,既影响生产装置的长期稳定运行,又影响环境。经过技术改进后,不仅解决了原工艺存在的技术问题,而且降低了能耗、物耗。

There are some problems which exist in the styrene production process in Shandong Qilu Petrochemical Engineering Co. Ltd. , which include poor dewatering effect of crude styrene, high energy consumption of steam super- heater, poor mixing degree of cold styrene and hot styrene in the return tank, and the vent gas from most storage tanks directly discharges into atmosphere. Such problems cause a higher loss both in energy consumption and material consumption,it affects a long period of stable operation and environment. After the technical improvement, the problems which exist in the original process has been resolved, and both the energy consumption and material consumption have been reduced.