Solvent refined coal (SRC) combustion Demonstration Support program. Final technical report

Technical Report · Fri Apr 01 04:00:00 EST 1983

OSTI ID:6563736

A combustion support program with the objective of characterizing the complete and environmentally acceptable combustion of solvent-refined coal (SRC) solid and liquid fuels in environments characteristic of existing coal-, oil-, and gas-fired boilers was conducted. SRC fuel forms investigated were SRC, SRC residual fuel oil, SRC middle distillate fuel oil, two-stage liquefaction solvent refined coal (TSL SRC) and TSL SRC residual fuel oil. Firing SRC and TSL SRC with a slow mix long flame, NO emission limits can be held below New Source Performance Standards (NSPS - 0.5 lb NO/sub 2//million Btu) by firing with low excess air. Combustion efficiency was good (99.59 +- 0.24%). Firing pulverized SRC with a rapid mix short flame is difficult because SRC softens and plugs devices intended to mix fuel and air. Based on tests that lasted only a short time (due to plugging), rapid mix firing of SRC will increase NO emissions so that an NO reduction technique, such as staged combustion, will be required to meet NSPS. Tangential pilot-scale firing of pulverized SRC was very successful. For all SRC liquid fuels, flame length was short indicating rapid mixing. For liquid fuels, the largest factor affecting NO emissions is fuel nitrogen content. For SRC middle distillate (fuel N = 0.70 percent), desired NSPS NO limits (0.5 lb/million Btu) can be achieved with either low excess air (less than 5 percent) or moderate air staging. Particulate emission for all of the liquid fuels appear to be much less than desired retrofit limits (e.g., 0.1 lb/million Btu).

• Research Organization: Acurex Corp., Mountain View, CA (USA). Energy and Environmental Div.; International Coal Refining Co., Allentown, PA (USA)
• DOE Contract Number: AC05-78OR03054
• OSTI ID: 6563736
• Report Number(s): DOE/OR/03054-18; ON: DE84011293
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
014000 -- Coal
Lignite
& Peat-- Combustion
BOILERS
BURNERS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL LIQUEFACTION
COMBUSTION
COMBUSTION PROPERTIES
DATA
DEMONSTRATION PLANTS
DEMONSTRATION PROGRAMS
ELECTRON MICROSCOPY
EMISSION
EXPERIMENTAL DATA
FLAMES
FUEL OILS
FUELS
INFORMATION
LIQUEFACTION
LIQUID FUELS
MICROSCOPY
NITROGEN COMPOUNDS
NITROGEN OXIDES
NUMERICAL DATA
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
PETROLEUM PRODUCTS
RETROFITTING
SOLVENT-REFINED COAL
SRC PROCESS
TEST FACILITIES
THERMOCHEMICAL PROCESSES
TSL PROCESS