High pressure direct contact oxy-fired steam generator
US9512999B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 2009 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Aug 25, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P80/15
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for direct contact steam generation for a variety of industrial processes including heavy oil recovery, power generation and pulp and paper applications. The steam generation system consists of a combustor (10) and a steam generator (70) and is constructed to be operable at elevated pressures. The fuel, at least one oxidant and a fluid supply including water are supplied at pressure to the combustor. Flue gas from the combustor (10) is delivered to the direct contact steam generator (70) at pressure, and upon direct contact with water, produces a flue gas stream consisting primarily of steam. This product stream can then be cleansed and used for industrial applications. The combustor (10) can be operated with low grade fuel and low quality water with high solids and hydrocarbon contents. The apparatus and method reduce the environmental footprint by reducing air emission, concentrating CO2 to enable capture and reducing clean water requirements. The removal of solids from the combustor (10) at its second end (62) as well as at the second end of the steam generator (70) as at (78), the use of water injection-type steam quality control and a steam feedback inle…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.