Soot formation in synthetic fuel droplets. Third quarterly technical progress report, April 1 to June 30, 1981

Technical Report · Wed Jul 01 04:00:00 EDT 1981

OSTI ID:6164221

England, G; Kramlich, J; Kwan, Y; Payne, R

During the third quarterly period of the program, efforts have focused primarily on the generation of experimental data - previous periods having been concerned mainly with the design, construction, and commissioning of experimental hardware and diagnostic equipment. Supplies of SRC-II middle- and heavy-distillate fuel oils have been received, and the preliminary fuel screening studies in the 7 x 10/sup 4/ Btu/h tunnel furnace have been extended to include also these fuels. A total of eight fuels (six synthetic and two petroleum-derived) have now been investigated; and soot, particulates, and NO/sub x/ emission levels have been obtained under comparable firing conditions for both normal and staged combustion, and at various overall excess air levels. Work has also continued on the Droplet Studies task where the combustion of single-droplet streams is investigated in a controlled flow reactor. Observations have shown that the SRC-II fuels exhibit a behavior different from conventional petroleum-derived fuels. The trajectory of every SRC-II fuel droplet was observed to terminate in a microexplosion. High-speed photography showed this to be an extremely rapid event resulting in the formation of a visible, luminous soot cloud. This behavior was not observed for a petroleum-derived No. 6 oil and appeared to be more pronounced for a blended SRC-II than for either the middle- or heavy-distillate fuels. Preliminary measurements have also been made of local soot concentrations and of the temperature of the soot sheet in the reactor system.

• Research Organization: Energy and Environmental Research Corp., Santa Ana, CA (USA)
• DOE Contract Number: AC22-80PC30298
• OSTI ID: 6164221
• Report Number(s): DOE/PC/30298-T3; ON: DE81028391
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010900 -- Coal
Lignite
& Peat-- Environmental Aspects
02 PETROLEUM
020900 -- Petroleum-- Environmental Aspects
090110 -- Hydrocarbon Fuels-- Properties-- (1979-1989)
10 SYNTHETIC FUELS
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION CONTROL
ATOMIZATION
CHALCOGENIDES
CHEMICAL REACTORS
COAL LIQUEFACTION
COMBUSTION PRODUCTS
CONTROL
DROPLETS
EMISSION
FLAMES
FUEL OILS
FUELS
LIQUEFACTION
LIQUID FUELS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
PETROLEUM PRODUCTS
POLLUTION CONTROL
RESEARCH PROGRAMS
SOOT
SRC-II PROCESS
SYNTHETIC FUELS
THERMOCHEMICAL PROCESSES