A comparison of three coal-derived, middle distillate, synthetic fuels in a single-cylinder DI diesel engine

Conference · Thu Jan 01 04:00:00 EST 1987

OSTI ID:5178412

Buzza, T G; Litzinger, T A

Three synthetic fuels, derived from coal, were compared to a Phillips DF-2 control fuel. These fuels were tested in a single-cylinder, direct-injected, Diesel engine. Comparisons were made on the basis of performance, combustion characteristics, gas-phase emissions including aldehydes, and particulate emissions. In addition, the mutagenic activity of the soluble organic compounds from the particulates were analyzed using the Ames test. The objective of these experiments was to determine how well the synthetic fuels would perform as direct replacements for DF-2. All three synthetic fuels were manufactured from an initial batch of middle distillates produced by the Exxon donor Solvent (EDS) process. The first fuel was a blend of the EDS middle distillate and the baseline DF-2 with a cetane number of 35. For the second test fuel, the phenolics were removed from the EDS middle distillate by caustic extraction, and the product was then mixed with the baseline DF-2 to achieve a cetane rating of about 35. The third test fuel was obtained by severely hydrotreating the caustic-washed EDS middle distillate used to prepare the second fuel; its cetane number was 38. Overall, the hydrotreated EDS fuel gave the best results compared to DF-2. The raw EDS and caustic-treated EDS blends showed poor results, especially at light loads, compared to DF-2.

• OSTI ID: 5178412
• Report Number(s): CONF-871142-
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
02 PETROLEUM
023000 -- Petroleum-- Properties & Composition
33 ADVANCED PROPULSION SYSTEMS
330800 -- Emission Control-- Alternative Fuels
CARBONACEOUS MATERIALS
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION
COAL LIQUIDS
COMPARATIVE EVALUATIONS
DIESEL ENGINES
DIESEL FUELS
DISTILLATES
EMISSION
ENERGY SOURCES
ENGINES
EXXON LIQUEFACTION PROCESS
FLUIDS
FOSSIL FUELS
FUEL SUBSTITUTION
FUELS
HEAT ENGINES
HYDROGENATION
INTERNAL COMBUSTION ENGINES
LIQUEFACTION
LIQUIDS
MATERIALS
PARTICLES
PARTICULATES
PERFORMANCE
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
SYNTHESIS
SYNTHETIC FUELS
TESTING
THERMOCHEMICAL PROCESSES