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Soot formation from synthetic fuel droplets. Final report

Technical Report ·
OSTI ID:6065984
The research program described in this report addressed the details of soot formation from liquid fuel droplets in order to provide useful techniques for minimizing emissions during synthetic fuels combustion. Two experimental efforts were conducted: Fuel Screening studies and Flame studies. The purpose of the Fuel Screening studies was to investigate the impact of fuel properties on particulate emissions from practical combustion equipment, to establish the importance of droplet size and examine atomizer effects, and to develop techniques for surrogate synthetic fuel production. The purpose of the Flame studies was to investigate details of soot formation in synthetic fuel spray flames at the fundamental level, particularly concentrating on the effects of fuel composition, droplet-environmental interactions, and droplet-droplet interactions. The fuels investigated in this program include seven coal-derived liquids, one shale-derived liquid, one distillate petroleum oil, and one residual petroleum oil. The petroleum fuels were representative of relatively clean (and, hence, costly) fuels for which synfuels make attractive replacements. Results suggest that there are no substantial differences between synfuels and conventional petroleum derived liquid fuels. Staged combustion is equally effective in reducing NO/sub x/ emissions from petroleum and synthetic fuels, but particulate emissions increase. Both studies indicate that soot production is higher for the coal derived liquids, particularly under staged combustion conditions and that this increase is partly attributed to C:H ratio.
Research Organization:
Energy and Environmental Research Corp., Irvine, CA (USA)
DOE Contract Number:
AC22-80PC30298
OSTI ID:
6065984
Report Number(s):
DOE/PC/30298-1; ON: DE83014535
Country of Publication:
United States
Language:
English