发明名称 |
CATALYTIC PROCESSES AND SYSTEMS FOR BASE OIL PRODUCTION FROM HEAVY FEEDSTOCK |
摘要 |
Processes and catalyst systems are provided for dewaxing a heavy 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 has a first level of selectivity for the isomerization of n-paraffins, the second hydroisomerization dewaxing catalyst has a second level of selectivity for the isomerization of n-paraffins, and a layered catalyst system comprising the first and second hydroisomerization dewaxing catalysts has a third level of selectivity for the isomerization of n-paraffins. The third level of selectivity may be higher than each of the first level of selectivity and the second level of selectivity.
|
申请公布号 |
CA2801759(A1) |
申请公布日期 |
2012.01.12 |
申请号 |
CA20112801759 |
申请日期 |
2011.06.24 |
申请人 |
CHEVRON U.S.A. INC. |
发明人 |
KRISHNA, KAMALA;LEI, GUAN-DAO |
分类号 |
C10G45/58;B01J29/06;C07C1/00;C10G65/00;C10M101/02 |
主分类号 |
C10G45/58 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|