Cryogenic rectification system with intermediate temperature turboexpansion
US5398514A · kind A · utility
11Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1993 |
| Grant date | Mar 21, 1995 |
| Priority date | — |
| Expiry date | Dec 8, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/94
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A cryogenic rectification system wherein feed partially traverses the primary heat exchanger, thereafter is turboexpanded, and then traverses another portion of the primary heat exchanger reducing the temperature differences between approaching streams within the primary heat exchanger and thus the cycle irreversibilities resulting in lower power requirements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.