Patent ID: 11873457
Assignee: CHINA PETROLEUM & CHEMICAL CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 1:
2. The process according to claim 1, wherein the olefin oligomerization of step 3) is carried out in the presence of an oligomerization catalyst under conditions including:
a temperature of about 50-500° C., a pressure of about 0.5-5.0 MPa, and a weight hourly space velocity of about 0.1-100 h−1;
the oligomerization catalyst is one or more selected from the group consisting of phosphoric acid catalysts, acidic resins, silica-alumina solid acid catalysts, and zeolite solid acid catalysts;
wherein, the phosphoric acid catalyst is one or more selected from the group consisting of a catalyst formed by loading phosphoric acid on diatomite, a catalyst formed by loading phosphoric acid on activated carbon, a catalyst formed from phosphoric acid-soaked quartz sand, a catalyst formed by loading phosphoric acid on silica gel, and a catalyst formed by loading copper pyrophosphate on silica gel;
the silica-alumina solid acid catalyst is a catalyst formed by loading metal ion(s) on alumina and/or amorphous silica-alumina carrier, wherein the loaded metal ion(s) is selected from the group consisting of Group VIII metals, Group IVA metals, and a combination thereof; and
the zeolite solid acid catalyst comprises about 10-100 wt % of a zeolite and about 0-90 wt % of a matrix, based on the weight of the zeolite solid acid catalyst, wherein the zeolite is one or more selected from the group consisting of one-dimensional zeolites selected from MTW (ZSM-12), MTT (ZSM-23), and TON (ZSM-22) zeolites, two-dimensional zeolites selected from FER (ferrierite), MFS (ZSM-57), MWW (MCM-22) and MOR (mordenite) zeolites, and three-dimensional zeolites selected from beta zeolites.