新型加氢裂化催化剂的开发及应用

DEVELOPMENT AND APPLICATION OF A NEW HYDROCRACKING CATALYSTS

中国石油化工集团石油化工科学研究院针对以生产蒸汽裂解原料为目的产品的加氢裂化装置,在中压加氢裂化(RMC)技术的基础上成功开发了新型加氢精制催化剂RN-32及裂化催化剂RHC- 1。中试结果显示,在相同的转化深度下,采用新加氢裂化催化剂,加氢裂化产品尾油BMCI值较使用原催化剂RN-2／RT-1低约2个单位;而在尾油质量相当(BMCI值为10)的条件下,尾油收率较原催化剂增加约15个百分点。评价结果显示,加氢精制催化剂RN-32的加氢脱硫、脱氮以及芳烃加氢饱和性能均明显优于RN-2催化剂,相对脱氮活性较RN-2催化剂高20％～38％;裂化催化剂RHC-1的加氢性能、开环选择性明显优于RT-1催化剂。

Based on the RMC technology, Research Institute of Petroleum Processing (RIPP) has successfully developed two new catalysts for hydrocracking units which produce maximum unconverted oil as olefin feedstock. They are hydrogenation catalyst RN-32 and hydrocracking catalyst RHC-1. Pilot plant data showed, under the same hydrocracking conversion depth, that the BMCI value of the unconverted oil could be lowered down 2 units when the new catalysts were used. In the situation of gaining the same quality unconverted oil (the BMCI value was about 10) , the yield of unconverted oil when using new catalysts would be about 15% higher than that of RMC technology. The catalyst evaluation tests indicated that the new hydrogenation catalyst RN-32 had much better performance in hydrodesul-phurization, hydrodenitrogenation and hydrodearomatics than the former hydrogenation catalyst RN-2 used in the RMC technology. Specifically, the hydrodenitrogenation ability of RN-32 was 20%～38% higher than that of RN-2. The new hydrocracking catalyst RHC-1 behaved much better selective ring-opening ability than that of the former hydrocracking catalyst RT-1 used in the RMC technology.