EDS coal liquefaction process development: Phase IIIA. Monthly technical progress report, June 1--June 30, 1977

Technical Report · Sat Oct 01 00:00:00 EDT 1977

DOI:https://doi.org/10.2172/6812836· OSTI ID:6812836

Fant, B. T.

Highlights from this report are summarized as follows. With the 50 pound-per-day Recycle Coal Liquefaction Unit (RCLU), the effect of recycling coker liquids derived from Illinois No. 6 coal on liquefaction was investigated. Operations with Wyoming coal were conducted using a recycle solvent heavier than that typically used. Following the completion of the sixteen-day Wyoming coal run on the one ton-per-day Coal Liquefaction Pilot Plant (CLPP) an inspection revealed that high erosion rates had occurred in the vacuum flash feed zone. A preliminary liquefaction model for Wyodak coal has been developed which correlates 1000/sup 0/F+ bottoms yield as a function of temperature and residence time. Raw 400-1000/sup 0/F EDS coal liquid burned clean in a 50 horsepower pilot scale industrial boiler. Smoke and particulate emission levels for the coal liquid were significantly lower than values obtained with a reference petroleum fuel oil. A preliminary study indicates the optimum feed ash level for Illinois coal is probably not significantly different than that used in the Illinois Study Design. A preliminary evaluation of air-blown, moving-bed gasification (MBG) has been completed. The low Btu gas (LBG) produced by the MBG process is more expensive to make than LBG from coal FLEXICOKING, although both options produce fuel of significantly lower cost than high Btu gas or liquids. More than 90% of the phenolic compounds were removed from CLPP waste water by solvent extraction.

• Research Organization: Exxon Research and Engineering Co., Baytown, Tex. (USA). Baytown Research and Development Div.
• DOE Contract Number: EX-76-C-01-2353
• OSTI ID: 6812836
• Report Number(s): FE-2353-18
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL GASIFICATION
COMPARATIVE EVALUATIONS
COAL LIQUIDS
COMBUSTION PROPERTIES
EXXON LIQUEFACTION PROCESS
PILOT PLANTS
ORGANIC SOLVENTS
RECYCLING
PHENOLS
REMOVAL
WASTE WATER
WASTE PROCESSING
BITUMINOUS COAL
COAL LIQUEFACTION
LOW BTU GAS
MATHEMATICAL MODELS
AROMATICS
BLACK COAL
CARBONACEOUS MATERIALS
COAL
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
FUNCTIONAL MODELS
GAS FUELS
GASES
GASIFICATION
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
LIQUEFACTION
LIQUID WASTES
MANAGEMENT
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PROCESSING
SOLVENTS
WASTE MANAGEMENT
WASTES
WATER
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction
010404 - Coal
Lignite
& Peat- Gasification