YD-CADS汽油超深度催化吸附脱硫技术中试研究

Pilot scale study of YD-CADS technique for gasoline ultradeep catalytic adsorption desulfurization

陕西延长石油(集团)有限责任公司炼化公司和中国科学院大连化学物理研究所共同开发的YD-CADS汽油固定床超深度催化吸附脱硫组合技术,以全馏分FCC汽油为原料生产超低硫清洁汽油,采用脱二烯烃和催化吸附脱硫串联固定床工艺,具有流程短、投资低、占地少和操作简单等优点。中试结果表明,处理硫含量约100μg·g-1的FCC汽油时,汽油产品硫含量小于10μg·g-1,烯烃饱和小于2%,研究法辛烷值损失小于0.8个单位,目的产品汽油收率大于99%,化学氢耗小于0.2%。

YD-CADS combination technique for gasoline fixed-bed ultradeep catalytic adsorption desulfu- rization,jointly developed by Refining ＆ Chemical Company of Shaanxi Yanchang Petroleum （Group） Co. , Ltd. and Dalian Institute of Chemical Physics of Chinese Academy of Sciences, adopted series connection fixed-bed process for removing diolefins and catalytic adsorption desulfurization and used full range FCC gasoline as feedstock to produce uhralow sulfur clean gasoline. YD-CADS technique possessed the advantages of short process, low investment, small footprint and easy operation. The results of pilot scale application showed that when FCC gasoline with sulfur content of approximately 100 μg · g-1 was treated,the sulfur content of gasoline products dropped to below 10 μg · g-l, olefin saturation was less than 2%, the RON loss was less than 0. 8 unit, the liquid yield was more than 99%, and hydrogen consumption was lower than 0.2%.