Fundamental study for improvement of dewatering of fine coal/refuse. Annual report, August 1982-August 1983

Technical Report · Thu Sep 01 04:00:00 EDT 1983

OSTI ID:6038267

Chiang, S H; Klinzing, G E; Morsi, B J; Tierney, J W; Adams, J; Bhat, N; Binkley, T; Chi, S M; Kakwani, R; Qamar, I

The overall objective of the study is to seek improved methods of dewatering through a better understanding of the filtration and post-filtration processes. As a first step, efforts have been focused on the mechanism of dewatering in terms of basic properties of coal (and refuse) particles and microstructures of filter cakes, and their relations to filtration rate and final moisture content. Pittsburgh seam-Bruceton Mine coal was used as a base coal with experiments also being conducted with Upper Freeport and Illinois No. 6 coals. During the past year, filter cakes from the above coals with widely varied size ranges were micrographically characterized. The effects of a number of surface active agents and of entrapped air bubbles on the filter cake properties were also studied. A module of the network model for calculating single phase permeabilities was completed and tested. The report is divided into four parts: summary and deliverables; work forecast for the 1983-84; detailed descriptions of technical progress for particle/filter cake characterization; theoretical modeling, and enhanced dewatering methods; and appendices. 11 references, 35 figures, 11 tables.

• Research Organization: Pittsburgh Univ., PA (USA). Dept. of Chemical and Petroleum Engineering
• DOE Contract Number: AC22-81PC42302
• OSTI ID: 6038267
• Report Number(s): DOE/PC/42302-T2; ON: DE85000503
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
COAL FINES
COMPUTERIZED SIMULATION
CRYSTAL STRUCTURE
DATA
EXPERIMENTAL DATA
FILTRATION
INFORMATION
MATHEMATICAL MODELS
MICROSTRUCTURE
MOISTURE
NUMERICAL DATA
PERMEABILITY
REMOVAL
RESEARCH PROGRAMS
SEPARATION PROCESSES
SIMULATION
SURFACTANTS
WATER REMOVAL