Mulled Coal: A beneficiated coal form for use as a fuel or fuel intermediate

Technical Report · Sun Sep 01 00:00:00 EDT 1991

DOI:https://doi.org/10.2172/7273417· OSTI ID:7273417

During the past quarter Energy International has evaluated additional mull formulations with varying reagent additives, mixing times, and particle sizes. The Environmental Review was completed and conceptual designs developed for the Mull Preparation and CWF Conversion Systems. As these technical developments move toward commercial application, the needs for coordinated efforts and integrated requirements have become increasingly apparent. Systems are vitally needed to integrate energy delivery systems from the raw resource through processing to application and end use. Problems have been encountered in the preparation of conventional coal-water fuels that mutually satisfy the requirements for storage stability, handling, preparation, atomization, combustion, and economics. Experience has been slow in evolving generic technologies or products and coal-specific requirements and specifications continue to dominate the development. Thus, prospects for commercialization remain highly specific to the coal, the processor, and the end use. Developments in advanced beneficiation of coal to meet stringent requirements for low ash and low sulfur can be anticipated to further complicate the problem areas. This is attributable to the beneficiated coal being produced in very fine particles with a high surface area, modified surface characteristics, reduced particle size distribution range, and high inherent moisture.

• Research Organization: Energy International Corp., Pittsburgh, PA (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC22-90PC90167
• OSTI ID: 7273417
• Report Number(s): DOE/PC/90167-T8; ON: DE92019665
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL FINES
COAL PREPARATION
COAL
DEASHING
DESULFURIZATION
GRINDING
MIXTURES
PROGRESS REPORT
WATER
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COMMINUTION
DISPERSIONS
DOCUMENT TYPES
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
MACHINING
MATERIALS
OXYGEN COMPOUNDS
010300* - Coal
Lignite
& Peat- Preparation- (1987-)