Liquefactor
US4319900A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 7, 1980 |
| Grant date | Mar 16, 1982 |
| Priority date | — |
| Expiry date | Apr 7, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/908
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for purifying and liquifying an input gas containing natural gas and air. The apparatus comprises a plurality of molecular sieve assemblies operatable to clean the gas on a gas cleaning mode and to be regenerated on a heating mode and a cooling mode. A first assembly cleans the gas while a second sieve assembly is being regenerated. A three position valve associated with each molecular sieve assembly changes the modes of the sieve assemblies. A two position valve supplies hot air for heating the sieve assemblies during the heating mode, supplies cool air for cooling the sieve assemblies when the sieve assemblies are at a temperature above 400.degree. F. and supplies cool gas for cooling the sieve assemblies when the sieve assemblies are at a temperature below 400.degree. F.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.