Fischer-Tropsch catalyst production
US7419928B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2004 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Jul 20, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J25/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for enhancing the activity of a catalyst metal particulate for hydrogenation reactions comprising calcining the particulate in an oxidant-containing atmosphere to partially oxidize it thereby forming a porous layer of oxides thereon, treating with an solution capable of oxidizing the calcined metal particulate and comprising a compound of a hydrogenation catalyst metal to where said metal particulate has absorbed a volume of solution equal to at least about 10% of its calculated pore volume and activating it by treatment with a hydrogen-containing gas at elevated temperatures thereby forming a dispersed active metal catalyst. Preferably, the treated particulate is calcined a second time under the same conditions as the first before final activation with a hydrogen-containing gas. The metal particulate is preferably sized after each calcination and any agglomerates larger than 250 microns are comminuted to a desired size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.