Wet flue gas desulfurization system with zero waste water liquid discharge
US10350542B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 2016 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Jun 14, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/2047
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A system and a method for industrial plant or utility plant flue gas desulfurization, with zero waste water liquid discharge from a wet flue gas desulfurization system utilized therein, are disclosed herein. The wet flue gas desulfurization system is supplied an absorption liquid for contact with a flue gas to absorb flue gas acid gases. Waste water from the wet flue gas desulfurization system is heated under pressure in a heat exchanger to produce heated waste water, which is supplied to a flash vessel to produce steam. The produced steam is supplied to the flue gas upstream of a particulate collection system and the wet flue gas desulfurization system, supplied to the flue gas upstream of the wet flue gas desulfurization system, or supplied to absorption liquid circulated to the wet flue gas desulfurization system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.