Process and installation for the fractionation of air into specific gases
US7514056B2 · kind B2 · utility
16Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2006 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Dec 22, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In order to reduce incoming atmospheric carbon dioxide levels in compressed air prior to cryogenic distillation, a water spray cooling tower equipped with biocatalytic packing, or fed with absorptive reagents, is used to convert gaseous carbon dioxide into bicarbonate ions which dissolve in the cooling water. The hydration reaction and refrigeration occur synergistically. The bicarbonate ions are subsequently removed from the solution using the heat from the compressed air in a regenerator re-boiler unit, and then fed to a percolation cooling tower for releasing CO2 and cooling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.