Use of liquid CO/sub 2/ for fine coal cleaning

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:5760438

Araujo, G; He, D X; Chi, S M; Morsi, B I; Klinzing, G E

During the past few years, a great deal of interest has developed in fine coal cleaning techniques. The concern about the environmental effect of sulfur dioxide emissions and the increasing proportion of fine coal (-28 mesh) in the run-of-mine product are some of the reasons for the increased research in this area. There is a national effort to develop technologies that will produce ''super-clean'' coal (containing less than 2% ash and 0.8% sulfur) to be used as a replacement for oil and natural gas. Several chemical and physical coal cleaning techniques have been suggested for the production of super-clean coal. These include the TRW Gravimelt Process, the Microbubble Flotation, and the Otisca Process. The LICADO (Liquid CArbon DiOxide) process, currently being studied at the University of Pittsburgh, is a new alternative in this field. This paper discusses the LICADO process in detail.

• OSTI ID: 5760438
• Report Number(s): CONF-860826-
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
010900 -- Coal
Lignite
& Peat-- Environmental Aspects
AIR POLLUTION ABATEMENT
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMICAL REACTORS
CLEANING
COAL FINES
COAL PREPARATION
DESULFURIZATION
DISPERSIONS
FUEL SLURRIES
FUELS
MIXING
MIXTURES
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
SLURRIES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SUSPENSIONS