2.0Mt/a加氢裂化装置操作弹性与经济效益分析

OPERATION FLEXIBILITY AND PROFIT ANALYSIS OF 2.0Mt/a HYDROCRACKING UNIT

根据中国石化青岛炼油化工有限责任公司2.0Mt/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℃）850-931kg/m3、硫质量分数0.8%-2.5%;反应系统操作参数范围为进料量150-318t/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。

Based on the industrial operation data and the design data of 2.0Mt/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— 931kg/m3（20 ℃）,and sulfur content of 0.8%—2.5% and the operation parameters are as follows： throughput of 150—318t/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.