Low sulfur coal additive for improved furnace operation
US6729248B2 · kind B2 · utility
49Cited by
19References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2001 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Nov 3, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention is directed to additives for coal-fired furnaces, particularly furnaces using a layer of slag to capture coal particles for combustion. The additive(s) include iron, mineralizer(s), handling aid(s), flow aid(s), and/or abrasive material(s). The iron and mineralizers can lower the melting temperature of ash in low-iron, high alkali coals, leading to improved furnace performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.