Reduced-emissions combustion utilizing multiple-component metallic combustion catalyst
US6948926B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2002 |
| Grant date | Sep 27, 2005 |
| Priority date | — |
| Expiry date | Nov 29, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23K2900/05081
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Residual fuels, as well as lighter distillate fuels, are combusted with greater efficiency by utilizing low concentrations of specific bimetallic or trimetallic fuel-borne catalysts. The catalysts reduce fouling of heat transfer surfaces by unburned carbon while limiting the amount of secondary additive ash which may itself cause overloading of particulate collector devices or emissions of toxic ultra fine particles when used in forms and quantities typically employed. By utilizing a fuel containing a fuel-soluble catalyst comprised of platinum and at least one additional metal comprising cerium and/or iron, production of pollutants of the type generated by incomplete combustion is reduced. Ultra low levels of nontoxic metal combustion catalysts are able to be employed for improved heat recovery and lower emissions of regulated pollutants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.