OCT-M催化汽油选择性加氢脱硫技术的工业应用

Industrial application of OCT-M catalytic gasoline selective hydrodesulphurization

中国石化抚顺石油化工研究院开发的OCT-M催化汽油选择性加氢脱硫技术,能将催化汽油切割为轻、重2种馏分并进行脱硫处理,克服了传统催化汽油加氢脱硫工艺中脱硫与辛烷值损失的矛盾。在中国石化广州分公司30万t/a加氢精制装置的首次工业应用结果表明,催化汽油的含硫质量分数从处理前的(419～461)×10-6降低至处理后的(104～108)×10-6,含烯烃质量分数从29.8%降至21.1%,而混合汽油的研究法辛烷值下降了约2个单位,马达法辛烷值降幅不到1个单位,达到了脱硫率高而汽油辛烷值尽量不损失的预定目标。

The OCT-M fluid catalytic cracking(FCC) gasoline selective hydrodesulphurization technology developed by Fushun Research Institute of Petroleum and Petrochemicals,could separate FCC gasoline into light and heavy fractions,then the two fractions were treated by desulphurization separately.It could overcome the contradictions of desulfurization and octane loss in the traditional gasoline hydrodesulfurization process.The results of the first industrial application in 300kt/a hydrofining unit of Guangzhou Company showed that the sulfur and olefin mass fraction of treated FCC gasoline reduced from(419~461)×10-6 to(104~108)×10-6 and from 29.8% to 21.1% respectively.However,the research octane number of mixed gasoline only dropped by about 2 units and the motor octane number fell less than 1 unit.It could reach the predetermined target of high desulphurization rate without gasoline octane number loss.