Double column air separation process with hybrid upper column
US4838913A · kind A · utility
20Cited by
15References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1988 |
| Grant date | Jun 13, 1989 |
| Priority date | — |
| Expiry date | Feb 10, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/939
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A double rectification column air separation system with an associated argon column having a hybrid upper column containing both trays and packing in a defined construction wherein the upper column contains essentially exclusively packing below the argon column feed takeoff.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.