高芳烃油选择加氢组合催化剂制备与评价  

Preparation and evaluation of combined catalyst for selective hydrogenation of high aromatic oil

作　　者：吴建民 张孔远[1] 李永浩 黄仁强 Wu Jianmin;Zhang Kongyuan;Li Yonghao;Huang Renqiang(CNPC Key Laboratory of Catalysis,State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Qingdao 266555,Shandong,China)

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266555

出　　处：《工业催化》2022年第4期67-71,共5页Industrial Catalysis

摘　　要：采用成型载体等体积浸渍法制备CoMo/Al_(2)O_(3)和NiMo/Al_(2)O_(3)催化剂,并进行不同比例级配,在100 mL固定床加氢评价装置上进行高芳烃油选择加氢评价。结果表明,随NiMo/CoMo比例的增加,高芳油加氢脱硫率逐渐增加,NiMo-CoMo级配比为3∶9时,脱硫率最大,加氢产品的芳烃损失最小。在NiMo/CoMo催化剂级配比3∶9、反应温度360℃、反应压力4.0 MPa、空速1.5 h^(-1)条件下,加氢产品的硫含量小于0.2%,芳香分损失在5个百分点以内,未加氢的含硫和含氮化合物主要为空间位阻较大的化合物。In this paper,the CoMo/Al_(2)O_(3)and NiMo/Al_(2)O_(3)catalysts were prepared by the equal-volume impregnation method of the shaped support,and the different proportions were graded.The selective hydrogenation evaluation of high aromatic oil was carried out in a 100 mL fixed-bed hydrogenation evaluation device.The results show that as the ratio of NiMo/CoMo increases,the hydrodesulfurization effiency of high aromatic oil gradually increases.When the NiMo-CoMo gradation ratio is 3∶9,the desulfurization effiency is the largest,and the aromatics loss of the hydrogenated product is the smallest.Under the conditions of NiMo/CoMo catalyst gradation ratio 3∶9,reaction temperature 360℃,reaction pressure 4.0 MPa,space velocity 1.5 h^(-1),the sulfur content of the hydrogenated product is less than 0.2%,and the aromatic component loss is within 5 percentage points.The sulfur-containing and nitrogen-containing compounds without hydrogenation are mainly sterically hindered compounds.

关 键 词：石油化学工程 针状焦 FCC油浆 组合催化剂 加氢脱硫 芳烃饱和 

分 类 号：TE624.431[石油与天然气工程—油气加工工程] TQ426.95[化学工程]