Demonstration of the Viability and Evaluation of Production Costs for Biomass-Infused Coal Briquettes
- Coaltek Incorporated, Tucker, GA (United States)
This project was split into four main areas, first to identify the best combination of coal and biomass, second, create and test lab quantity of preferred combinations, Third, create a sizeable quantity for larger scale handling and consuming analysis and fourth, to provide analysis for a commercial scale production capacity. Samples of coal and biomass were collected. Five coals, representing the three major coal ranks, were collected including one bituminous, two sub-bituminous, and two lignite samples. In addition, three square bales (~50 lbs/bale) each of corn Stover and switch grass were collected with one bale of each sample processed through a hammer mill to approximately -5 mesh. A third sample of sawdust was collected once experimentation began at the University of Kentucky. Multiple combinations of coal and biomass; coal, biomass, with biomass binder, were tested until a formulation was identified that could meet the requirement criteria. Based on the results of the binderless briquetting evaluations, the CS/Sub-bit combinations was selected for extended evaluation at a 10% biomass addition rate while the WS/Bitum combination was selected for extended evaluation at a 30% biomass-addition rate. With the final results of the selection process complete, the CoalTek continuous production pilot plant in Tucker GA was outfitted with the specialized blending equipment and two 1/4 ton production runs of biomass and binder subbituminous coal briquettes were completed. These briquettes were later used for a calorific test burn at the University of North Dakota. The first formulation included subbituminous coal, corn stover and a corn starch binder the second formulation included subbituminous coal, wheat stover and corn starch binder.
- Research Organization:
- Coaltek Incorporated, Tucker, GA (United States)
- Sponsoring Organization:
- USDOE Office of Fossil Energy (FE)
- DOE Contract Number:
- FE0005293
- OSTI ID:
- 1172597
- Country of Publication:
- United States
- Language:
- English
Similar Records
Ram pressing: An almost extinct technology with interesting new applications in coal and other solid fuel processing
Developing Engineered Fuel (Briquettes) Using Fly Ash from the Aquila Coal-Fired Power Plant in Canon City and Locally Available Biomass Waste