Gasoline-cycle oil upgrading process
US5401389A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1993 |
| Grant date | Mar 28, 1995 |
| Priority date | — |
| Expiry date | Oct 12, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G69/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Light cycle oil (LCO) is upgraded to a low sulfur gasoline by co-processing the LCO with a cracked, sulfur-containing olefinic naphthas by hydrodesulfurization followed by treatment over an acidic catalyst comprising zeolite beta with a metal hydrogenation component such as molybdenum. The treatment over the acidic catalyst in the second step restores the octane loss which takes place as a result of the hydrogenative treatment and results in a low sulfur gasoline product with an octane number comparable to that of the feed naphtha. The zeolite beta catalyst is active for conversion of the higher boiling portions of the feed to products of low sulfur content in the gasoline boiling range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.