Fuel admixture for a catalytic combustor
US4687491A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 23, 1984 |
| Grant date | Aug 18, 1987 |
| Priority date | — |
| Expiry date | Feb 23, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/01
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Disclosed is a catalytic combustor and systems for the boilerless stoichiometric production of a working fluid such as steam from a burn-mixture comprised of a carbonaceous fuel and a diluent. In a preferred burn-mixture, the diluent includes a first portion taken from an emulsion of the fuel and water mixed in a thermally self-extinguishing mass ratio, and a second portion taken in an amount from combustion products of a mixture previously combusted to heat the resulting burn-mixture so it combusts in the presence of a catalyst at an adiabatic flame temperature between upper and lower stability limits of the catalyst. Production of the steam is by a controlled substantially stoichiometric process utilizing a combustor to provide steam over a wide range of heat release rates, temperatures and pressures for steam flooding an oil bearing formation. Even though formation characteristics change during a steam flooding operation, output steam of the combustor may be kept at a constant heat release rate by dividing the total amount of water passing through combustor between a first portion which is included in the fuel-mixture and a second portion which is injected into the heated produc…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.