2•0Mt／a加氢裂化装置操作弹性与经济效益分析

摘要

Based on the industrial operation data and the design data of 2.0 Mt∕a hydrocracking unit in Qingdao Refining &Chemical Co.Ltd,SINOPEC,the operation flexibility of the unit was defined.The feedstock (VGO)properties are limited in the ranges:boiling point of 233-570 ℃,density of 850-931 kg∕m3 (20 ℃),and sulfur content of 0.8%-2.5% and the operation parameters are as follows:throughput of 150-318 t∕h,hydrorefining temperature 330-414 ℃,and cracking temperature 340-429 ℃.Under those constraint conditions,the yields of kerosene,diesel and tail-oil can reach 46.01%,60.49% and 54.88% for kerosene,diesel and tail-oil solutions,respectively.The economic profit analysis of the solutions indicates that under the current pricing system,the kerosene solution is the best one.%根据中国石化青岛炼油化工有限责任公司2•0 Mt∕a加氢裂化装置的工业生产数据，结合装置设计数据，对该装置的操作弹性进行分析界定。认为该装置适用的原料范围为馏程233～570℃、密度（20℃）850～931 kg∕m3、硫质量分数0•8％～2•5％；反应系统操作参数范围为进料量150～318 t∕h、精制反应温度332～371℃、裂化反应温度351～384℃、氢分压12•3～15•2 MPa；在增产喷气燃料方案中，喷气燃料收率可达46•01％，在增产柴油方案中，柴油收率可达60•49％，在增产尾油方案中，尾油收率可达54•88％。对该装置不同工况下的经济效益进行测算，认为在当前定价体系下，增产喷气燃料方案为经济效益最佳的方案。