Water recovery from combustion turbine exhaust
US6804964B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2002 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Sep 24, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23J2219/80
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A combustion turbine power plant (10) incorporating a water recovery apparatus (34). A sulfur stripper portion of the water recovery apparatus uses water (56) to remove suffer from the exhaust (20) of the combustion turbine (12) and to produce a reasonably high concentration of sulfuric acid for subsequent recovery of the sulfur. A water stripper portion (36) of the water recovery apparatus uses an aqueous solution of a desiccant (74) to absorb water from the exhaust gas. The wet desiccant may then be heated or exposed to a sub-atmospheric pressure in a regenerator (102) to recover the water. A sub-atmospheric regenerator may be maintained at a sufficiently high temperature by transferring waste heat from the exhaust gas. The resulting moisture content of the exhaust gas may be below that which can be achieved using traditional cooling heat exchangers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.