钒对催化裂化催化剂的影响及新型抗钒催化剂的应用

EFFECT OF VANADIUM ON FCC CATALYST AND APPLICATION OF NEW ANTI-VANADIUM CATALYST

从重金属钒对催化裂化催化剂污染机理入手,分析了高钒原料对催化裂化催化剂以及产品分布的影响。针对中国石化扬子石油化工有限公司2.0 Mt/a催化裂化装置原料油中钒含量高的情况,试用中国石化石油化工科学研究院最新开发的CGP-1YZ型专用抗钒催化剂。工业应用结果表明,与装置原用催化剂相比,CGP-1YZ型催化剂具有良好的抗钒能力,使用抗钒催化剂后,转化率和汽油产率分别增加9.51和5.67百分点,焦炭选择性显著改善,催化剂单耗降低了0.15kg/t。

Based on the deactivation mechanism of FCC catalyst by vanadium, this paper analyzed the influence of V on catalyst performance and product distribution on processing the high vanadium feedstocks. The new anti vanadium FCC catalyst CGP-1YZ, developed by SINOPEC Research Institute of Petroleum Processing, was used in the No. 2 FCC unit with capacity of 2 Mt/a in Yangzi Petrochemi cal Company. The industrial application results show that compared with the original catalyst, the new catalyst shows a good anti vanadium ability, the conversion and gasoline yield increase by 9.51 and 5.67 percentage points, respectively. The catalyst consumption lowers 0.15 kg/t. The coke selectivity is significantly improved.