Process for the elimination of mercury from hydrocarbons by passage over a presulphurated catalyst
US5601701A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1994 |
| Grant date | Feb 11, 1997 |
| Priority date | — |
| Expiry date | Feb 8, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J23/74
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention concerns a process for the elimination of mercury from hydrocarbons by passage of the feedstock with hydrogen over a catalyst then bringing the product obtained into contact with a mercury retention bed, the catalyst comprising at least one element selected from the group constituted by iron, nickel, cobalt, molybdenum, tungsten, palladium, wherein at least 5% is in the sulphide state. Any arsenic present in the feedstock is also eliminated. In accordance with the invention, the catalyst is simultaneously presulphurated and reduced. The invention results in a considerable reduction in operation period and high retention efficiency at temperatures between 120.degree. C. and 250.degree. C. and in the presence of 0-1000 mg of sulphur/kg of feed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.