LWA demonstration applications using Illinois coal gasification slag: Phase 2. Technical report, September 1--November 30, 1993

Technical Report · Fri Dec 31 04:00:00 EST 1993

DOI:https://doi.org/10.2172/10135063· OSTI ID:10135063

Choudhry, V ^[1]; Steck, P ^[2]

---

1. Praxis Engineers, Inc., Milpitas, CA (United States)
2. Harvey Cement Products, Inc. (United States)

The objectives of this program are to demonstrate the feasibility of producing ultra-lightweight aggregates (ULWA) from solid residues (slag) generated during the gasification of Illinois coals, and to test the products as substitutes for conventional aggregates produced by pyroprocessing of perlite ores. In Phase 1 of this project, Praxis developed a pilotscale production technique and produced a large batch of expanded aggregates from an Illinois coal slag feed. The Phase 2 work focuses on characterization and applications-oriented testing of the expanded slag products as substitutes for conventional ULWAs. Target applications include high-volume uses such as loose fill insulation, insulating concrete, lightweight precast products (blocks), waterproof wallboard, rooftiles, and filtration media. The precast products will be subjected to performance and characterization testing in conjunction with a commercial manufacturer of such products in order to obtain input from a potential user. The production of value-added products from slag will eliminate a solid waste and possibly enhance the overall gasification process economics, especially when the avoided costs of disposal are taken into consideration.

• Research Organization: Illinois Dept. of Energy and Natural Resources, Springfield, IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FC22-92PC92521
• OSTI ID: 10135063
• Report Number(s): DOE/PC/92521--T109; ON: DE94008403; BR: AV0100000/AV0102000
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305
BUILDING MATERIALS
COAL GASIFICATION
FEASIBILITY STUDIES
GASIFICATION
GRINDING
ILLINOIS
INDUSTRIAL WASTE MANAGEMENT
MELTING
PARTICLE SIZE
PERFORMANCE
POROSITY
PROGRESS REPORT
SLAGS
SPECIFIC HEAT
TESTING
WASTE PRODUCT UTILIZATION