Patents
US 9182121 B2: Process for operating a coal-fired furnace with reduced slag formation
- Granted
- 2015-11-10
- Filed
- 2014-07-14 application 14330087
- Type
- Utility · 14 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
There is provided a process for operating a coal-fired furnace to generate heat. The process has the steps of a) providing the coal to the furnace and b) combusting the coal in the presence of a first slag-reducing ingredient and a second slag-reducing ingredient in amounts effective to reduce slag formation in the furnace. The first slag-reducing ingredient and the second slag-reducing ingredient are different substances. The first slag-reducing ingredient is selected from the group consisting of magnesium carbonate, magnesium hydroxide, magnesium oxide, magnesium sulfate, and combinations thereof. The second slag-reducing ingredient is selected from the group consisting of copper acetate, copper nitrate, aluminum nitrate, aluminum oxide, aluminum hydroxide, and ammonium phosphate. There is also provided a method for reducing slag formation in a coal-fired furnace.
Source: PVGPATDIS, file of 2026-04-10 (ipg151110.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| ENVIRONMENTAL ENERGY SERVICES, INC. 5 patents | US company or organization | Sandy Hook, CT | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Mark Pastore | Suffern, NY | 4 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F23J | Removal or treatment of combustion products or combustion residues; flues | F23J7/00 | PVGPATDIS, file of 2026-04-10 |
| C10L | Fuels not otherwise provided for; natural gas; synthetic natural gas obtained by processes not covered by subclasses c10g or c10k; liquified petroleum gas; use of additives to fuels or fires; fire-lighters | C10L9/10 | PVGPATDIS, file of 2026-04-10 |
| F23D | Burners | F23D1/00 | PVGPATDIS, file of 2026-04-10 |
| F23B | Methods or apparatus for combustion using only solid fuel | F23B2700/023 | PVGPATDIS, file of 2026-04-10 |
| F23K | Feeding fuel to combustion apparatus | F23K2201/505 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2014-12-29 | Assignment Assignment of assignor's interest | PASTORE, MARK signed 2014-11-07 | ENVIRONMENTAL ENERGY SERVICES, INC. SANDY HOOK, CT | 34593/661 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.