Catalytic oxidation of NOx/SOx in flue gases with atmospheric oxygen as the oxidation reagent
US10946335B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2018 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Jul 18, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A NOx and SOx oxidation with atmospheric oxygen to remove NOx and SOx from flue gases. The combined system for catalytic oxidation and wet-scrubbing of NOx and SOx from a flue gas and manufacturing fertilizers includes: an air separation unit for separating atmospheric oxygen from air and producing an air stream enriched with atmospheric oxygen, an adsorption and oxidation reactor containing an oxidation catalyst and carrying out the catalytic oxidation of NOx and SOx by said oxygen to yield nitric and sulphuric acids, a separator and reactor control unit for separation of products and liquids and controlling the reaction; and a vessel containing ammonia streaming said ammonia into the reactor or into the control unit to react with the nitric and sulphuric acids and to yield the fertilizers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.