Removal of sulfur from process streams
US4263020A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 2, 1980 |
| Grant date | Apr 21, 1981 |
| Priority date | — |
| Expiry date | Jan 2, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/524
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process wherein a particulate mass of a metal alumina spinel, MAl.sub.2 O.sub.4 wherein M is chromium, iron, cobalt, nickel, copper, cadmium or mercury, particularly zinc alumina spinel (ZnAl.sub.2 O.sub.4), is contacted with a process stream which contains sulfur, sulfur compounds, and other contaminants, these being adsorbed onto said particulate mass of metal alumina spinel, and the process stream thereby denuded of said sulfur, sulfur compounds, and other contaminants. Thereafter, the sulfur, sulfur compounds, and other contaminants, are readily desorbed, or removed from said particulate mass of metal alumina spinel by contacting, and purging same with a relatively clean gas stream, suitably hydrogen, hydrogen-containing gas, or an inert gas, at elevated temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.