Cu改性吸附脱硫剂的表征及其脱硫性能  

Characterization and Desulfurization Performance of Cu Modified Adsorption Desulfurizer

作　　者：张露露[1,2] 柳云骐 赵晋翀 刘晨光 

机构地区：[1]中国石油大学重质油国家重点实验室CNPC催化重点实验室,山东青岛266580 [2]中国石油西南油气田分公司天然气研究院,四川成都610213

出　　处：《石油学报（石油加工）》2016年第1期181-186,共6页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金项目(21176258);高等学校博士学科点专项科研基金博士导师类资助课题项目(20110133110002)资助

摘　　要：采用等体积浸渍法对ZnO-活性炭吸附脱硫剂进行Cu改性,并采用XRD、BET、TPR等手段对脱硫剂进行表征。以硫质量分数78.2μg/g的胜华炼油厂催化加氢汽油为原料,采用10mL固定床微型反应器评价脱硫剂的脱硫性能,考察Cu的负载量、反应温度、反应压力、氢/油体积比对脱硫剂的脱硫性能影响。结果表明,研制的Cu改性吸附脱硫剂具有较好的选择性深度脱硫能力,烯烃饱和也得到了较好的抑制;最优的工艺条件为反应温度300℃、反应压力1 MPa、液体空速1.0h-1、氢/油体积比100。Cu负载量为4%的Cu改性脱硫剂ADS-Cu-4具有优异的脱硫性能,在最优工艺条件下得到硫质量分数低于10μg/g且辛烷值损失仅为0.3个单位的产品。ZnO-active carbon adsorbents were modified with Cu by incipient impregnation, and then were characterized by XRD, BET and TPR. Fluid catalytic cracking （FCC） gasoline from Shenghua refinery with sulfur mass fraction of 78.2 μg/g was used as feedstock to evaluate the performance of the Cu modified adsorbents in 10 mL fixed-bed micro-reactor. The influences of Cu loading, reaction temperature, pressure and hydrogen/oil volume ratio of reaction were studied. The Cu modified adsorbents performed well in both desulfurization and olefins-saturation preventing. The optimized conditions of process were temperature of 300℃, pressure of 1.0 MPa, LHSV of 1.0 h-1 and hydrogen/oil volume ratio of 100. The Cu modified adsorbent ADS-Cu-4 with Cu loading of 4% possessed the best desulfurization performance among the prepared Cu modified adsorbents, with the desulfurization product of sulfur mass fraction lower than 10 t^g/g and the octane number loss only 0.3 unit.

关 键 词：Cu改性 吸附脱硫剂 脱硫性能 

分 类 号：TE65[石油与天然气工程—油气加工工程]