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Fuel pellet briquettes from biomass and recovered coal slurries

a technology of biomass and coal slurries, which is applied in the direction of biofuels, fuels, waste based fuels, etc., can solve the problems of abandoning coal fines and presenting an unnecessary liability to the mine owner

Inactive Publication Date: 2007-01-11
NEW ENERGY USA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007] The invention makes burnable renewal fuel (RF) briquettes from recovered coal from coal slurry ponds, biomass, and a binder. The briquettes may be augmented with one or more of recovered environmenta

Problems solved by technology

In an environmentally related area, abandoned coal fines represent a continuing and unnecessary liability to the mine owner.

Method used

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  • Fuel pellet briquettes from biomass and recovered coal slurries

Examples

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Effect test

Embodiment Construction

[0012] The inventive burnable renewal fuel (RF) briquettes are formed from three primary materials: recovered coal from coal slurry ponds; biomass; and a binder therefor.

Coal Slurry Fines Component

[0013] One coal slurry recovery system is represented in U.S. Pat. No. 6,544,425 (the '425 patent), the disclosure of which is expressly incorporated herein by reference. The '425 patent employs a tank that dewaters coal slurry ponds for recovering coal fines from their admixture with water and contaminants, that forms the coal slurry pond. Other separation techniques and equipment could be used also, provided that the recovered coal fines were not overly contaminated with heavy metals, chlorine sources, and like materials whose presence is no desired when combustion of the coal fines is implemented. Purity of the coal fines is more important than the recovery rate of the process to be employed. That is, the final fuel briquette must comply with current laws regarding combustion by-prod...

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PUM

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Abstract

The invention makes burnable renewal fuel (RF) briquettes from recovered coal from coal slurry ponds, biomass, and a binder. The briquettes may be augmented with one or more of recovered environmental burnable fraction from municipal solid waste (MSW), agricultural livestock waste, lumber processing residue, solid wood waste material, agricultural by-products and crops, and like burnable waste material. Accordingly, the method for making burnable renewal fuel (RF) briquettes includes the steps of recovering coal from coal slurry ponds; recovering biomass; adding a binder to said recovered coal and said biomass; and forming solid burnable RF fuel briquettes therefrom.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] None. STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0002] Not applicable. BACKGROUND OF THE INVENTION [0003] The present invention generally relates to for formation of environmentally friendly, fuel pellet briquettes and more particularly to their formation from biomass (e.g., municipal solid waste (MSW) burnable fractions), recovered coal from coal slurry ponds, and binder. [0004] A variety of biomass sources provide an opportunity as a fuel source. Often, such biomass is a “waste” material, such as sawdust from lumber mills, waste wood pallets, construction wood waste, and the like. Additionally, cellulose and like burnable fractions from municipal solid waste (MSW) represents another potential fuel source, once it is successfully separated from the entire MSW. [0005] In an environmentally related area, abandoned coal fines represent a continuing and unnecessary liability to the mine owner. In the United States alone, there are a...

Claims

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Application Information

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IPC IPC(8): C10L5/40
CPCC10L5/361C10L5/42C10L5/44Y02E50/30C10L5/48Y02E50/10C10L5/46
Inventor CULLEN, DONALD L.
Owner NEW ENERGY USA
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