Process for the purification of a cryogenic fluid by filtration and/or adsorption
US5857356A · kind A · utility
1Cited by
6References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 28, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Jan 28, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/924
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Process and apparatus for the purification of a cryogenic fluid in liquid, diphase, gaseous or supercritical state, having a boiling point Pe, with at least one of its impurities having a boiling point Pe', with Pe'>Pe. The process includes at least one step selected from the group comprised by: PA1 a filtration step of at least one impurity in solid state, PA1 and an adsorption step of at least one impurity in liquid or gaseous state; PA1 and in which there is recovered at least one portion of the cryogenic fluid at least partially purified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.