Purifying an air or gas stream containing combustible vaporous or gaseous impurities
US4088460A · kind A · utility
5Cited by
3References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 3, 1976 |
| Grant date | May 9, 1978 |
| Priority date | — |
| Expiry date | Nov 3, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2259/4009
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Method and apparatus for purifying an air or gas flow of combustible vaporous or gaseous impurities by passing air or gas through an adsorption filter, desorbing the filter by passing a heated inert gas, and prior to passing the hot inert gas through the adsorption filter, passing a cold protective gas through the adsorption zone thereby preventing undesired ignition of the desorbate and the burning of carbon. Provision is made for spaced closing elements at the gas inlet and the gas outlet of the adsorption chamber with introduction of protective gas in the interspace between the closing elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.