Process for eliminating nitrogenous ingredients from solid fuel
US3942956A · kind A · utility
3Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1975 |
| Grant date | Mar 9, 1976 |
| Priority date | — |
| Expiry date | Feb 6, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L9/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A nitrogenous ingredient is eliminated from solid fuel, for example, coal, by treating in a treating chamber, the coal with a treating gas having a predetermined temperature and composition at a temperature of 650.degree. to 1200.degree.C, the treating gas being prepared by uniformly mixing, in a conditioning chamber located upstream from the treating chamber, a predetermined amount of steam or water and hydrogen gas or a mixture gas containing at least 30% by volume of hydrogen gas together with an inert burnt gas containing at most 2% by volume of oxygen gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.