Evaluation of Exxon Donor Solvent (EDS) coal-derived liquid as utility diesel fuel. Final report

Technical Report · Sat Oct 01 04:00:00 EDT 1983

OSTI ID:5350426

Heater, W R; Froh, T W; Ariga, S; Baker, Q A; Piispanen, W; Webb, P; Trayser, D; Keane, W J

The program consisted of three phases: (I) characterization of the physical and chemical properties of EDS, (II) evaluation of EDS in a laboratory medium-speed diesel engine, and (III) evaluation of EDS in a low-speed diesel engine operating at a utility. The characteristics of high aromatic content and low cetane number that were found during Phase I made it unlikely that EDS could be used as a direct substitute for diesel fuel without engine modification to provide ignition assistance. Phase II was conducted on a 12-cylinder General Electric Company 7FDL diesel engine. Blends of up to 30% EDS and 70% 0.2 diesel fuel (DF-2) were successfully consumed. Dual fuel tests were also conducted on a single cylinder by injecting EDS through the existing engine fuel oil system and injecting DF-2 through an auxiliary nozzle as an ignition source. Acceptable operation was achieved using 5 to 10% pilot oil heat input. Phase III was conducted on a 16-cylinder Cooper-Bessemer LSV-16-GDT diesel engine at an EUC plant in Easton, Maryland. Blends of up to 66.7% EDS and 33.3% DF-2 were successfully consumed. Dual fuel tests were also conducted on a single cylinder by injecting EDS through the existing fuel oil system and using a natural-gas-fueled precombustion chamber as an ignition source. Acceptable operation was achieved using 3 to 6% pilot gas heat input. The program confirmed that it is feasible to consume significant proportions of EDS in a diesel engine, but more development is needed before EDS can be considered a viable alternative liquid fuel for diesel engines, and an industrial hygiene program is needed to assure safe handling of the fuel.

• Research Organization: Cooper Energy Services, Mount Vernon, OH (USA); Southwest Research Inst., San Antonio, TX (USA); Battelle Columbus Labs., OH (USA); Control Data Healthcare Services, Rockville, MD (USA); Easton Utilities Commission, MD (USA)
• OSTI ID: 5350426
• Report Number(s): EPRI-AP-3224; ON: DE84920083
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
20 FOSSIL-FUELED POWER PLANTS
200100* -- Fossil-Fueled Power Plants-- Power Plants & Power Generation
COAL LIQUEFACTION
COAL LIQUIDS
DIESEL ENGINES
DIESEL FUELS
ELECTRIC UTILITIES
ENGINES
EVALUATION
EXXON LIQUEFACTION PROCESS
FIELD TESTS
FLUIDS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LIQUEFACTION
LIQUIDS
PETROLEUM PRODUCTS
POWER GENERATION
PUBLIC UTILITIES
TESTING
THERMOCHEMICAL PROCESSES