Advanced Coal Conversion Process Demonstration Project

Technical Report · Sat Feb 01 04:00:00 EST 1992

DOI:https://doi.org/10.2172/7205449· OSTI ID:7205449

This project will demonstrate an advanced thermal coal drying process coupled with physical cleaning techniques to upgrade high-moisture, low-rank coals to produce a high-quality, low-sulfur fuel. The coal will be processed through two vibrating fluidized bed reactors that will remove chemically bound water, carboxyl groups, and volatile sulfur compounds. After drying, the coal will be put through a deep-bed stratifier cleaning process to effect separation of the pyrite rich ash. The process will enhance low-rank western coals, usually with a moisture content of 25--55%, sulfur content of 0.5--1.5%, and heating value of 5,500--9,000 Btu/lb by producing a stable, upgraded coal product with a moisture content as low as 1%, sulfur content as low as 0.3%, and heating value up to 12,000 Btu/lb.

• Research Organization: Western Energy Co., Colstrip, MT (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FC22-90PC89664
• OSTI ID: 7205449
• Report Number(s): DOE/PC/89664-T4; ON: DE92017971
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010300 -- Coal
Lignite
& Peat-- Preparation-- (1987-)
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
CALORIFIC VALUE
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CLEANING
COAL
COMBUSTION PROPERTIES
DEASHING
DECARBOXYLATION
DESULFURIZATION
DOCUMENT TYPES
DRYING
ENERGY SOURCES
FLUIDIZED BEDS
FOSSIL FUELS
FUELS
HEAT TREATMENTS
MATERIALS
MINERALS
MOISTURE
PROGRESS REPORT
PYRITE
REMOVAL
SEPARATION PROCESSES
SULFIDE MINERALS
SULFUR CONTENT
WATER REMOVAL