公开(公告)号：US20170275539A1

公开(公告)日：2017-09-28

申请号：US15621540

申请日：2017-06-13

Applicant: Chevron U.S.A. Inc.

Inventor： Kamala Krishna ,  Guan-Dao Lei

IPC: C10G65/04 ,  C10G45/64 ,  C10G45/62 ,  B01J29/70 ,  B01J37/02 ,  B01J29/80 ,  B01J29/74 ,  B01J23/58 ,  C01B39/48

CPC classification number: C10G65/043 ,  B01J23/58 ,  B01J29/70 ,  B01J29/7492 ,  B01J29/80 ,  B01J37/0201 ,  B01J37/0244 ,  B01J2229/20 ,  B01J2229/42 ,  C01B39/48 ,  C10G45/62 ,  C10G45/64 ,  C10G65/04 ,  C10G2300/1022 ,  C10G2300/301 ,  C10G2300/304 ,  C10G2400/10

Abstract: Processes and catalyst systems are provided for dewaxing a hydrocarbon feedstock to form a lubricant base oil. A layered catalyst system of the present invention may comprise a first hydroisomerization dewaxing catalyst disposed upstream from a second hydroisomerization dewaxing catalyst. Each of the first and second hydroisomerization dewaxing catalysts may be selective for the isomerization of n-paraffins. The first hydroisomerization catalyst may have a higher level of selectivity for the isomerization of n-paraffins than the second hydroisomerization dewaxing catalyst. At least one of the first and second hydroisomerization dewaxing catalysts comprises small crystallite zeolite SSZ-32x.

公开(公告)号：US09677016B2

公开(公告)日：2017-06-13

申请号：US14299463

申请日：2014-06-09

Applicant: Chevron U.S.A. Inc.

Inventor： Kamala Krishna ,  Guan-Dao Lei

IPC: C10G65/04 ,  C10G45/62 ,  C10G45/64 ,  B01J23/58 ,  B01J29/70 ,  B01J37/02 ,  C01B39/48 ,  B01J29/80 ,  B01J29/74

CPC classification number: C10G65/043 ,  B01J23/58 ,  B01J29/70 ,  B01J29/7492 ,  B01J29/80 ,  B01J37/0201 ,  B01J37/0244 ,  B01J2229/20 ,  B01J2229/42 ,  C01B39/48 ,  C10G45/62 ,  C10G45/64 ,  C10G65/04 ,  C10G2300/1022 ,  C10G2300/301 ,  C10G2300/304 ,  C10G2400/10

Abstract: Processes and catalyst systems are provided for dewaxing a hydrocarbon feedstock to form a lubricant base oil. A layered catalyst system of the present invention may comprise a first hydroisomerization dewaxing catalyst disposed upstream from a second hydroisomerization dewaxing catalyst. Each of the first and second hydroisomerization dewaxing catalysts may be selective for the isomerization of n-paraffins. The first hydroisomerization catalyst may have a higher level of selectivity for the isomerization of n-paraffins than the second hydroisomerization dewaxing catalyst. At least one of the first and second hydroisomerization dewaxing catalysts comprises small crystallite zeolite SSZ-32x.