公开(公告)号：EP2683479A1

公开(公告)日：2014-01-15

申请号：EP12755532.4

申请日：2012-03-07

Applicant: ExxonMobil Research and Engineering Company

Inventor： OLIVERI, Christopher G. ,  LAI, Wenyih Frank ,  DANDEKAR, Ajit B. ,  WEIGEL, Scott J. ,  KAY, Robert Ellis ,  WU, Jianxin Jason

IPC: B01J29/00 ,  B01J29/16 ,  C10G47/00

CPC classification number: B01J29/12 ,  B01J23/42 ,  B01J23/882 ,  B01J23/883 ,  B01J23/888 ,  B01J29/084 ,  B01J29/123 ,  B01J29/126 ,  B01J29/16 ,  B01J29/166 ,  B01J29/40 ,  B01J29/60 ,  B01J29/65 ,  B01J29/70 ,  B01J29/7026 ,  B01J29/80 ,  B01J29/85 ,  B01J35/002 ,  B01J35/023 ,  B01J35/08 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1061 ,  B01J35/109 ,  B01J37/0045 ,  B01J37/0063 ,  B01J37/0201 ,  B01J37/0207 ,  B01J2229/18 ,  B01J2229/36 ,  B01J2229/42 ,  C10G47/16 ,  C10G47/18 ,  C10G47/20 ,  C10G2300/1059 ,  C10G2300/301 ,  C10G2300/4018 ,  C10G2400/04 ,  C10L1/08

Abstract: This invention relates to hydrocracking catalysts utilizing stabilized aggregates of small primary crystallites of zeolite Y that are clustered into larger secondary particles. At least 80% of the secondary particles may comprise at least 5 primary crystal lites. The size of the primary crystallites may be at most about 0.5 micron, or at most about 0.3 micron, and the size of the secondary particles may be at least about 0.8 micron, or at least about 1.0 μim. The silica to alumina ratio of the resulting stabilized aggregated Y zeolite may be 4: 1 or more. This invention also relates to the use of such catalysts in hydrocracking processes for the conversion of heavy oils into lighter fuel products. The invention is particularly suited for the selective production of diesel range products from gas oil range feedstock materials under hydrocracking conditions.