Method and apparatus for cryogenic gas separation
Abstract
Abstract THE INVENTION RELATES TO A METHOD AND APPARATUS FOR THE CONTINUOUS REMOVAL OF HIGHER BOILING POINT CONSTITUENTS FROM A PROCESS GAS STREAM CONTAINING SUCH CONSTITUENTS. IT RELATES PARTICULARLY TO A PROCESS FOR THE PURIFICATION OR ENRICHMENT OF A GAS BY CRYOGENIC CONDENSATION OF THE HIGHER BOILING POINT CONSTITUENTS FROM THE GAS STREAM, WHICH CONDENSATE IS TRANSFERRED TO A MINOR STREAM OF THE PURIFIED GAS AT SUBSTANTIALLY ATMOSPHERIC PRESSURE IN A PURGING STEP. THE REGRIGERATION NECESSARY TO DRIVE THE CRYOGENIC SYSTEM IS FURNISHED BY A MODERATE EXPANSION OF THE PURIFIED GAS AND A FURTHER EXPANSION OF THE PURGE GAS. THE REFRIGERATION POTENTIAL, REPRESENTED BY THE LATENT HEAT OF THE CONDENSATE, IS CONSERVED BY A RECYCLE STREAM OF THE PURIFIED GAS.
Inventors
- 👤 James R Muenger
- 👤 David L Alexander
Bibliographic Details
Claims Analysis
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| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |