摘要
采用介孔分子筛SBA-15和γ-Al_2O_3制备混合载体SBA-15-γ-Al_2O_3,担载Co-Mo金属活性组分制备深度加氢脱硫催化剂CoMo/SBA-15-γ-Al_2O_3。BET表征结果表明,混合载体负载金属后仍然具有介孔材料的特性,比表面积略有下降。以直馏柴油为原料,在固定床微型反应器上评价了该催化剂的加氢脱硫反应活性。结果表明,在催化剂CoO和MoO_3的负载量(w)分别为5%和20%、反应温度360℃、反应压力6 MPa、氢油体积比600、体积空速2h^(-1)的条件下,柴油硫质量分数可由829μg/g降至6μg/g。
CoMo/SBA-15-γ-Al2O3 catalysts were prepared using mesoporous molecular sieve SBA-15 and γ-Al2O3 as mixed support,Co and Mo as active metal components. Test results showed that the pre pared catalysts exhibited the characteristics of mesoporous material with slightly decrease surface area. Using catalyst with CoO and MoO3 contents of 5% and 20%, respectively, under the conditions of a reaction temperature of 360℃ ,a reaction pressure of 6 MPa,a hydrogen/oil volume ratio of 600 and a LHSV of 2 h^-1 , the sulfur content of treated diesel fuel could be reduced to 6μg/g from the feed of 829 μg/g.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2011年第5期18-22,共5页
Petroleum Processing and Petrochemicals
关键词
介孔分子筛
混合载体
加氢脱硫
工艺条件
mesoporous molecular sieve
mixed carrier
hydrodesulfurization
process condition
