Air separation in combination with a chemical process
US5076837A · kind A · utility
22Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1989 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | Oct 16, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S75/958
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus for recovering work from a nitrogen stream, wherein the nitrogen is preheated via heat exchange with hot fluid from a chemical process, which process utilizes the oxygen product of the air separation. Preferably at least a part of the expanded nitrogen is utilized to preheat at least one fluid reactant of the chemical process. The chemical process may be gasification or direct reduction of iron oxide, as well as the conversion of natural gas into synthesis gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.