Purification of carbon dioxide
US5858068A · kind A · utility
21Cited by
11References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Oct 9, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S95/902
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Industrial grade carbon dioxide may contain unacceptable amounts of sulfur-containing materials, oxygen, and organic materials particularly detrimental to food-related uses of CO.sub.2. These can be effectively removed by a bed of silver-exchanged faujasite and an MFI-type molecular sieve. This permits an on-site, on-demand method of purifying CO.sub.2 ranging from laboratory to tank car seals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.