炼油厂国Ⅴ排放标准汽油生产方案中S Zorb装置的优化

摘要

在某千万吨级炼油厂生产国Ⅴ排放标准清洁汽油过程中,进行了围绕S Zorb装置开展总体生产方案的优化研究.通过对催化裂化原料在不同加氢反应深度时,全厂氢气平衡、产品分布、汽油辛烷值等方面进行综合对比,确定S Zorb原料硫含量最优的控制范围,全厂吨原油效益增加5.2元;通过优化调整S Zorb装置稳定塔的操作参数,在冬季回炼部分液化气,辛烷值损失减少0.3个单位;对S Zorb干气多种加工路线进行了对比测算分析,选择最合适的路线,每吨干气效益增加240元.%To produce national Ⅴ gasoline,the optimum scheme for the plant around S Zorb device was conducted.Through the comprehensive analysis of the hydrogen balance,product distribution as well as octane number,the optimal sulfur content in S Zorb feed was determined,making the benefit increase 5.2 Yuan RMB per ton crude oil.By optimizing the operating parameters of the S Zorb gasoline stabilization tower and recycling part of LPG in winter,the octane number loss reduces by 0.3.After optimizing processing routs for dry gas of S Zorb unit,the benefit increases 240 Yuan RMB per ton dry gas.