Design and operation of a mini-pilot plant for the removal of sulfur from coal using the perchloroethylene process
- Univ. of Akron, OH (United States)
A mini-pilot plant has been designed and fabricated to study the removal of sulfur from coal using perchloroethylene in a continuous process. Perchloroethylene solvent is used in a recycle process stream to perform both physical and chemical cleaning of finely crushed coal. Organic sulfur is removed in an extraction stage using perchloroethylene at atmospheric pressure. Physical removal of pyrites and minerals takes place in a float/sink apparatus in which perchloroethylene is used as a heavy medium. The plant is used to study process efficiency, control, and to provide scale-up data. The process variables studied will include type of coal, solvent-to-coal ratio, and extraction time among others. Design of the plant using bench-scale data will be discussed. Unit operations will be discussed, including extraction, heavy medium separation, screen separation, and drying.
- OSTI ID:
- 51951
- Report Number(s):
- CONF-940930-; TRN: IM9524%%421
- Resource Relation:
- Conference: 11. annual international Pittsburgh coal conference: coal, energy and the environment, Pittsburgh, PA (United States), 12-16 Sep 1994; Other Information: PBD: 1994; Related Information: Is Part Of Eleventh annual international Pittsburgh coal conference proceedings: Volume 2; Chiang, S.H. [ed.]; PB: 860 p.
- Country of Publication:
- United States
- Language:
- English
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Physical cleaning of coal using perchloroethylene as heavy medium
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Related Subjects
COAL PREPARATION PLANTS
DESIGN
PERFORMANCE
BITUMINOUS COAL
SOLVENT EXTRACTION
HEAVY MEDIA SEPARATION
ORGANIC SULFUR COMPOUNDS
REMOVAL
PYRITE
MINERALS
PILOT PLANTS
DESULFURIZATION
DEASHING
SORTING
DRYING
CHLORINATED ALIPHATIC HYDROCARBONS
SOLVENT PROPERTIES
FLOWSHEETS
EXPERIMENTAL DATA