Sulfur Removal of FCC Gasoline by Selective Adsorption over Activated Semi-coke
The objective of this research is to use semi-cokes as the raw material to prepare sorbents of sulfur removal from gasoline and to find the optimal preparation methods and to determine operating conditions. The result shows that the granular semi-cokes, pre-activated with 30%-45% HNO3, then calcined at 700℃ at N2 atmosphere mixed with vapor for 1h, then impregnated with 3%CuO, has the best performance for sulfur removal.With this desulfurizer, the adsorption capacity observed was 0.933mg/g at breakthrough level for a high sulfur thiophene-cyclohexane solution (300ng/μ). Compared with the GC-FPD chromatograms of FCC gasoline and desulfurized gasoline, it showed that, all of the benzothiophenes (BT) and its derivatives and most other sulfides in FCC gasoline were removed by this desulfurizer. In this study, the optimal operating conditions were at 160℃,with the space velocity 4h -1 .
desulfurization semi-cokes selective adsorption FCC gasoline
Wang Linxue Li Chunhu Yin Haiyan Feng Lijuan Yu Yingmin Hou Yingfei
College of Chemistry and Chemical Engineering, Ocean University of China, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Qingdao 266100,China
国际会议
The 12th Asian Pacific Confederation of Chemical Engineering Congress(第十二届亚太化工联盟大会暨化工展览会)
大连
英文
2008-08-04（万方平台首次上网日期，不代表论文的发表时间）