System and process for gas recovery
US6517791B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 4, 2000 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Dec 4, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2210/0031
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention is directed to a three-stage process for recovering and purifying a helium gas, and a system for using the three-stage process. The steps comprises a) introducing a gas from a cold spray forming chamber to a particulate removing apparatus to form a particulate-free helium gas, and recycling a first portion of the particulate-free helium gas back to the chamber; b) passing a second portion of the particulate-free helium gas to a first compressor prior to passing a helium gas purification membrane to form a purified helium gas and an exhaust gas, and passing the purified helium gas to mix with the first portion of particulate-free helium gas to the chamber; and c) passing a third portion of the particulate-free helium gas to a liquid separator apparatus to remove water and a receiver to dampen any pulsation to form a liquid-free helium gas, and recycling the liquid-free helium gas to said cold spray forming chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.