Moderate excess nitrogen Braun Purifier.TM. process and method for retrofitting non-Braun Purifier.TM. ammonia plants
US5935544A · kind A · utility
16Cited by
10References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 7, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Apr 7, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is a moderate excess nitrogen Braun Purifier.TM. process, wherein has been found an unexpected improvement in capacity and efficiency of operation of ammonia plants designed without the Braun Purifier.TM. process. In addition, the refrigeration necessary for the fractionation and/or separation of the desired hydrogen and nitrogen from the undesired methane and inerts can by provided by prior art methods or by the novel methods described herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.