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Title: EDS coal liquefaction process development, Phase III B. Monthly technical progress report, July 1--August 31, 1977

Abstract

The process variable study initiated during Phase IIIA with Wyoming subbituminous coal was resumed in the 50 pound-per-day Recycle Coal Liquefaction Unit. The variables investigated were liquefaction residence time and temperature. Studies on the one ton-per-day Coal Liquefaction Pilot Plant continued with Wyoming subbituminous coal to obtain additional yield information at longer residence times than those previously tested. Bituminous coal operators were then resumed to study the effects of increasing the end-point of the solvent. There were no operational problems and there were no apparent yield differences between the standard solvent and the higher end-point solvent. A high molecular weight cationic flocculant effectively settled both Illinois and Wyoming coal fines from a water slurry. This additive may be used in the disposition of coal fines from the 250 ton-per-day Exxon Coal Liquefaction Pilot Plant to an existing refinery solids settling pond. Analyses of fines from studies in the Fluidized Bed Unit showed the ash content of the -325 mesh material to be consistently greater than 99 wt percent. Coke gasification levels varied from 70 to 90 percent in these studies. The integrated coking gasification unit was prepared for integrated operation on Illinois coal bottoms from CLPP. An engineering evaluation ofmore » alternative processes for hydrogen manufacture indicated that the choice of the preferred route is dependent on the value of high BTU gas and the cost of plant fuel gas.« less

Publication Date:
Research Org.:
Exxon Research and Engineering Co., Linden, N.J. (USA)
OSTI Identifier:
7289914
Report Number(s):
FE-2893-7
DOE Contract Number:  
EF-77-A-01-2893
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 08 HYDROGEN; 36 MATERIALS SCIENCE; CHEMICAL REACTORS; DESIGN; COAL FINES; FLOCCULATION; COAL LIQUIDS; REFINING; EXXON LIQUEFACTION PROCESS; PILOT PLANTS; FUEL SLURRIES; RHEOLOGY; HYDROGEN PRODUCTION; COMPARATIVE EVALUATIONS; ORGANIC SOLVENTS; HYDROGENATION; SOLID WASTES; WASTE DISPOSAL; BITUMINOUS COAL; COAL; COAL LIQUEFACTION; MATERIALS TESTING; MATHEMATICAL MODELS; RECYCLING; SUBBITUMINOUS COAL; CARBONACEOUS MATERIALS; CHEMICAL REACTIONS; DISPERSIONS; ENERGY SOURCES; FOSSIL FUELS; FUELS; FUNCTIONAL MODELS; LIQUEFACTION; MANAGEMENT; MIXTURES; PRECIPITATION; PROCESSING; SEPARATION PROCESSES; SLURRIES; SOLVENTS; SUSPENSIONS; TESTING; WASTE MANAGEMENT; WASTES; 010405* - Coal, Lignite, & Peat- Hydrogenation & Liquefaction; 080100 - Hydrogen- Production; 360105 - Metals & Alloys- Corrosion & Erosion

Citation Formats

. EDS coal liquefaction process development, Phase III B. Monthly technical progress report, July 1--August 31, 1977. United States: N. p., 1977. Web.
. EDS coal liquefaction process development, Phase III B. Monthly technical progress report, July 1--August 31, 1977. United States.
. Sat . "EDS coal liquefaction process development, Phase III B. Monthly technical progress report, July 1--August 31, 1977". United States.
@article{osti_7289914,
title = {EDS coal liquefaction process development, Phase III B. Monthly technical progress report, July 1--August 31, 1977},
author = {},
abstractNote = {The process variable study initiated during Phase IIIA with Wyoming subbituminous coal was resumed in the 50 pound-per-day Recycle Coal Liquefaction Unit. The variables investigated were liquefaction residence time and temperature. Studies on the one ton-per-day Coal Liquefaction Pilot Plant continued with Wyoming subbituminous coal to obtain additional yield information at longer residence times than those previously tested. Bituminous coal operators were then resumed to study the effects of increasing the end-point of the solvent. There were no operational problems and there were no apparent yield differences between the standard solvent and the higher end-point solvent. A high molecular weight cationic flocculant effectively settled both Illinois and Wyoming coal fines from a water slurry. This additive may be used in the disposition of coal fines from the 250 ton-per-day Exxon Coal Liquefaction Pilot Plant to an existing refinery solids settling pond. Analyses of fines from studies in the Fluidized Bed Unit showed the ash content of the -325 mesh material to be consistently greater than 99 wt percent. Coke gasification levels varied from 70 to 90 percent in these studies. The integrated coking gasification unit was prepared for integrated operation on Illinois coal bottoms from CLPP. An engineering evaluation of alternative processes for hydrogen manufacture indicated that the choice of the preferred route is dependent on the value of high BTU gas and the cost of plant fuel gas.},
doi = {},
url = {https://www.osti.gov/biblio/7289914}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1977},
month = {1}
}

Technical Report:
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