Method of preparing and filtering coprecipitated nickel-alumina catalysts
US4105591A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1976 |
| Grant date | Aug 8, 1978 |
| Priority date | — |
| Expiry date | Jul 12, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst suitable for the high pressure gasification of heavy hydrocarbons to produce methane-containing gases is a calcined coprecipitated-alumina containing from 50- 65% Ni on a calcined unreduced basis. The catalyst contains (1) from 0 to not more than 0.43% K and from 0 to not more than 0.1% Na, (2) the combined weights of Na+ K does not exceed 0.011 gm atoms/100 gm of catalyst, (3) the ratio of Na:K falls within the area defined by ABCDEO in FIG. 1 of the drawings and (3) at combined Na+ K weights of from 0 to 0.05% the water loss is not more than 11.2%. The catalysts are prepared with the aid of a filtering aid selected from (NH.sub.4).sub.2 CO.sub.3, Na.sub.2 CO.sub.3, K.sub.2 CO.sub.3, Na NO.sub.3 or K NO.sub.3 to obtain low levels of alkali in the precursor. The catalyst may be employed for steam reforming reactions to produce methane-containing gases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.