Oxygenate treatment of dewaxing catalyst for greater yield of dewaxed product
US7344631B2 · kind B2 · utility
8Cited by
125References
36Claims
0Family size
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Key dates
| Filing date | Aug 29, 2003 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Jan 28, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Fischer-Tropsch hydrocarbon synthesis using a noncobalt catalyst is used to produce waxy fuel and lubricant oil hydrocarbons from synthesis gas derived from natural gas. The waxy hydrocarbons are hydrodewaxed, with reduced conversion to lower boiling hydrocarbons, by contacting the waxy hydrocarbons, in the presence of hydrogen, with an unsulfided hydrodewaxing catalyst that has been reduced and then treated by contacting it with a stream containing one or more oxygenates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.