Analysis of coal hydrogasification processes. Quarterly technical progress report, December 1, 1977--February 28, 1978

Technical Report · Sat Apr 01 04:00:00 EST 1978

DOI:https://doi.org/10.2172/6410863· OSTI ID:6410863

Data from 15 recent Rocketdyne hydrogasification tests with subbituminous and bituminous coals and 24 Rocketdyne partial liquefaction tests with bituminous coals were entered into the computerized data base. Data from 17 recent Cities Service hydrogasification tests with subbituminous coal were also entered into the data base. The Cities Service, Rocketdyne, and PERC data bases were expanded to include values for the following: carbon selectivity to BTX (Cities Service); carbon selectivity to methane, ethane, and BTX (Rocketdyne); and gas velocity, gas residence time, and carbon selectivity to gas, methane, and ethane (PERC). Semiempirical correlations for predicting overall carbon conversion and carbon conversion to gas, methane, CO, and CO/sub 2/ were fitted to the Cities Service and Rocketdyne subbituminous coal data. The analysis showed that the Cities Service bench-scale reactor and the Rocketdyne 1/4-ton/hr reactor give similar values of overall carbon conversion and carbon conversion to gaseous products under comparable operating conditions. A semiempirical correlation for predicting overall carbon conversion was fitted to the Brookhaven lignite hydropyrolysis data. Because of inconsistencies in the Brookhaven data, 11 of the 48 runs were not used in the correlation. An improved semiempirical correlation was developed for predicting overall carbon conversion for the reactor systems. The improved correlation accounts for thermodynamic equilibrium between the carbon in the coal and the reaction products.

• Research Organization: Bechtel Corp., San Francisco, CA (USA)
• OSTI ID: 6410863
• Report Number(s): FE-2565-13
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
ALKANES
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CHEMICAL REACTORS
COAL
COAL GASIFICATION
CORRELATIONS
CRYOGENIC FLUIDS
DATA ANALYSIS
ENERGY SOURCES
ETHANE
FLUIDS
FOSSIL FUELS
FUELS
GASIFICATION
HYDROCARBONS
HYDROGENATION
MATHEMATICAL MODELS
METHANE
ORGANIC COMPOUNDS
SPECIFICITY
SUBBITUMINOUS COAL
THERMOCHEMICAL PROCESSES