加氢裂化催化剂FC-76与FC-32的工业应用对比分析

Comparative analysis of commercial application of hydrocracking catalyst FC-76 and FC-32

中国石油化工股份有限公司抚顺石油化工研究院开发的加氢裂化催化剂FC-76在中国石化上海石油化工股份有限公司加氢裂化装置上成功进行工业应用。加氢裂化催化剂FC-76采用了富含介孔结构的改性Y分子筛和集微孔、介孔优势为一体的Al-SBA-15/Y核-壳复合分子筛,实现加氢和酸催化功能的合理配置,提升酸催化组元的开环和裂化活性及其抗中毒能力。与TUSSY分子筛相比,介孔比表面积提高了1.1倍、孔容提高了140%,制备催化剂FC-76采用混捏法,取代需要焙烧的常规浸渍法。应用结果表明,催化剂FC-76具有活性好、抗氮能力强等特点,产品结构分布合理,催化剂装填量下降明显。与催化剂FC-32相比较,重石脑油收率增加5.23百分点,喷气燃料收率增加5.71百分点,柴油收率减少6.19百分点,催化剂装填量下降16.7百分点,为企业节约了生产成本,具有广阔的应用前景。

The hydrocracking catalyst FC-76 developed by SINOPEC Fushun Research Institute of Petroleum and Petrochemicals has been successfully applied in the hydrocracking unit of Shanghai Petrochemical Co., Ltd. The catalyst FC-76 uses AI-SBA-15/Y composite molecular sieve that containes mesoporous structure of modified Y molecular sieve and integrates with micropore and mesoporous advantages, to achieve hydrogenation and acid catalytic function, and improve the ring-opening and cracking activity of acid catalysis and its ability to resist poisoning. Compared with TUSSY molecular sieve, mesoporous specific surface area increases 1. 1 times, dielectric distributed capacity increases by 140%. The catalyst FC-76 is prepared by kneading method. The results show that the catalyst FC-76 exhibits high activity and high nitrogen tolerance, reasonable product structure distribution, obvious decrease in catalyst loading. Compared with catalyst FC-32, heavy naphtha increases by 5.23 percentage points, jet fuel increases by 5. 71 percentage points, diesel oil decreases by 6. 19 percentage points, catalyst loading decreases by 16. 7 percentage points, which saves production costs for enterprises and has broad application prospects.