加氢裂化催化剂RHC-3在高压下的反应性能研究与工业应用

CATALYTIC PERFORMANCE STUDY OF HYDROCRACKING CATALYST RHC-3 UNDER HIGH PRESSURE AND ITS COMMERCIAL APPLICATION

针对以加氢裂化尾油作蒸汽裂解原料为目标的加氢裂化装置,开发加氢裂化催化剂RHC-3。在中试装置上考察RHC-3催化剂在高压下对劣质原料的催化性能,结果表明,采用RHC-3催化剂可获得理想的产品分布和优质的产品,选择性好,加氢裂化尾油质量显著改善。RHC-3催化剂在2.0Mt/a高压加氢裂化装置上的工业应用结果表明,采用该催化剂,在保持较高尾油收率的情况下,可获得低BMCI值、高链烷烃含量的优质尾油。

New hydrocracking catalyst RHC-3 was developed for hydrocracking unit to produce tail oil used as steam cracking feedstock. The flexibility of processing inferior feedstock under high pressure by RHC-3 catalyst was studied in a hydrocracking pilot plant. Test data showed that good product slates and product properties were obtained by using RHC-3 catalyst, particularly the properties of tail oil were improved significantly. The application results of RHC-3 catalyst in a 2.0 Mt/a high pressure hydrocracking unit indicated that good quality tail oil with low BMCI value and high alkane content was produced; meanwhile, the yield of tail oil could be kept at a high level.