Supercritical water/CO liquefaction and a model for coal conversion

Conference · Tue Jan 01 00:00:00 EST 1985

OSTI ID:5745863

Ross, D S; Hum, G P; Miin, T C; Green, T K; Mansani, R

The studies reported here deal with research on the kinetics and mechanism of coal conversion, using supercritical water as the medium. Our work in hydrothermal conversion, in which CO provides the reducing potential has demonstrated that the conversion is promoted by base, and is a function of the pH of the starting water. The conclusion is that coal conversion is limited by the kinetics of the reduction chemistry, rather than by the coal structure. The results are consistent with a model in which coal is partitioned during conversion to char. We have successfully simulated the process, with the simulation leading to present improvements in TS (toluene soluble) yields in preliminary work. 6 refs., 5 figs.

• Research Organization: SRI International, Menlo Park, CA (USA); Western Kentucky Univ., Bowling Green (USA); Eniricerche S.p.A., Milan (Italy)
• DOE Contract Number: FG22-83PC60778
• OSTI ID: 5745863
• Report Number(s): CONF-8506112-1; ON: DE85011298
• Resource Relation: Conference: US/France joint seminar on coal chemistry, Marseille, France, 1 Jun 1985; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL LIQUEFACTION
CHEMISTRY
COMPUTERIZED SIMULATION
YIELDS
CARBON MONOXIDE
EXPERIMENTAL DATA
HIGH TEMPERATURE
HYDROTHERMAL ALTERATION
PH VALUE
REDUCTION
TIME DEPENDENCE
TOLUENE
WATER
ALKYLATED AROMATICS
AROMATICS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
HYDROCARBONS
HYDROGEN COMPOUNDS
INFORMATION
LIQUEFACTION
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SIMULATION
THERMOCHEMICAL PROCESSES
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction