齐鲁石化20万t/a苯乙烯装置技术改造及效果

齐鲁石化塑料厂苯乙烯装置经过十几年的运转,技术已趋于落后,能耗物耗高,引起的腐蚀和环境污染问题日益严重。这次改造集成了合成乙苯技术、乙苯脱氢制苯乙烯技术以及苯乙烯精馏技术3项先进技术,将整套装置生产能力由原来的6万t/a扩建到20万t/a,形成了国内第1套自主开发设计的最大规模苯乙烯生产装置。改造后节能效果明显,物耗大大降低,腐蚀及环境污染状况得到了彻底改善,经济及环境效益显著。

Revamping and its effect for 200 000 t/a styrene plant of Qilu Petrochemical Co.

The styrene plant in the Plastics Plant of Qilu Petrochemical Co.tends to be backward in its technology applied for more than ten years of operation,which has the disadvantages of high energy and material consumptions,serious corrosion and environmental pollution.Three advanced technologies,i.e.ethylbenzene synthesis,dehydrogenation of ethylbenzene to styrene,and styrene distillation,were integrated in this technical revamping.The capacity of styrene was increased from 60 000 t/a to 200 000 t/a,thus standing as the first largest plant of styrene designed independently in China.After revamping,the energy conservation effects were obvious,the material consumption was reduced greatly,and the corrosion and environmental pollution problems were thoroughly improved,thus attaining good economic and remarkable environmental benefits.