Recovery of hydrogen and nitrogen from ammonia plant purge gas
US4077780A · kind A · utility
51Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 20, 1976 |
| Grant date | Mar 7, 1978 |
| Priority date | — |
| Expiry date | Oct 20, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An adiabatic pressure swing adsorption process for separating gas mixtures containing ammonia, argon, methane, nitrogen and hydrogen to recover hydrogen and nitrogen product in which four adsorbent beds are joined so that the adsorbate loaded bed is pressure equalized with two other beds in staged sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.