Development of a fluidized bench-scale reactor for kinetic studies. [8 refs]

Conference · Wed Jan 01 04:00:00 EST 1975 · Am. Chem. Soc., Div. Fuel Chem., Prepr.; (United States)

OSTI ID:7354275

Friedman, L D

The TGA apparatus is widely used to obtain kinetic data on the devolatilization of coal and the reactivities of chars with gases. However, TGA results often correlate poorly with results obtained in large-scale pilot plant fluidized reactors. In addition, the TGA apparatus uses such small samples that insufficient solids, gases, or liquids are produced to permit characterization of the reaction products. A versatile, small, fluidized-bed bench-scale Coal Evaluation Unit (CEU) which has been used to study the pyrolysis of coals and the reactivities of chars with gases is described. Results obtained in the CEU correlate well with results obtained in fluidized-bed pilot plants. High-volatile bituminous coals which agglomerate in conventional fluidized-bed reactors can be devolatilized in the CEU. With this unit, one operator can determine both the pyrolytic behavior of a coal and the gasification characteristics of the resulting char in one day.

• Research Organization: COGAS Development Co., Princeton, NJ
• OSTI ID: 7354275
• Conference Information: Journal Name: Am. Chem. Soc., Div. Fuel Chem., Prepr.; (United States) Journal Volume: 20:3
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
BENCH-SCALE EXPERIMENTS
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CHARS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL
COAL GASIFICATION
DECOMPOSITION
ENERGY SOURCES
FLUIDIZED BED
FOSSIL FUELS
FUELS
FUNCTIONAL MODELS
GASIFICATION
KINETICS
PILOT PLANTS
PYROLYSIS
REACTION KINETICS
VOLATILITY