Production of high purity fisher-tropsch wax
US6846848B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2002 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Aug 23, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2/342
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A hydrocarbon wax product from a hydrocarbon synthesis slurry comprising liquid synthesis product and catalyst particles is purified by introducing a portion of hydrocarbon synthesis slurry from a hydrocarbon synthesis zone to a treatment zone in which a treatment gas contacts the hydrocarbon synthesis slurry. Hydrogen or a hydrogen-containing gas is useful as the treatment gas. The gas treatment removes impurities from the hydrocarbon wax portion of the hydrocarbon synthesis slurry. Purified wax product is separated and removed in situ via wax withdrawal means. This avoids or minimizes the need for further treating the wax product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.