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Title: PAH emissions from combustion of coal liquids in industrial furnace

Abstract

The possible environmental impact of substituting fuel oils derived from coal instead of petroleum was investigated using an industrial furnace. Emphasis was placed on the emissions of polynuclear aromatic hydrocarbons (PAH). The nonpetroleum fuel oil (ECLP-SS) was produced from Texas lignite coal by the Exxon Donor Solvent Process at the Exxon Coal Liquefaction Pilot Plant. The effects of furnace loading and flue-gas temperature on PAH emissions were studied by varying both the firing rate of the burner and the amount of wall insulation in the water-cooled furnace. The research furnace was fully instrumented for measuring the concentration of oxygen, carbon monoxide (CO), and nitrogen oxides (NO/sub x/) in the flue gas. PAH emissions were measured by a special sampling train and analytical method. Seventeen successful test runs were completed using the ECLP-SS, natural gas, and No. 6 fuel oil. Highly luminous flames indicated the formation of carbon particles during the combustion of both fuel oils; however, no visible soot emissions were observed with either fuel oil over the entire range of operation. The very low level of CO emissions indicated complete combustion with all test fuels at all operating conditions, and the calculated combustion efficiencies were 99.9+ percent. As expected,more » because of its low nitrogen content, NO/sub x/ emissions with ECLP-SS were below the Federal standard for new stationary sources. There are no PAH emission limits in the Federal standards at this time, and none are planned. We used the predominant PAH species of pyrene, benz(a)anthracene, benzo(a)pyrene, benzo(e)pyrene, benzo(b)fluoranthene, and benzo(g,h,i)perylene to indicate total PAH concentration. When compared at the same furnace condition, we found that PAH emissions were not statistically different for the three fuels tested. Therefore, we conclude that the combustion of coal-derived fuel oils should not generate objectionable PAH emissions in industrial furnaces.« less

Authors:
; ;
Publication Date:
Research Org.:
Phillips Petroleum Co., Bartlesville, OK (USA); Zink (J.) and Co., Tulsa, Okla (USA)
OSTI Identifier:
6036096
Report Number(s):
CSS/CI-83-09; CONF-830358-10
ON: DE83902026
Resource Type:
Conference
Resource Relation:
Conference: Spring meeting of the Central States Section of the Combustion Institute, Lexington, KY, USA, 21 Mar 1983
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 54 ENVIRONMENTAL SCIENCES; COAL LIQUIDS; COMBUSTION PRODUCTS; FUEL OILS; NATURAL GAS; POLYCYCLIC AROMATIC HYDROCARBONS; EMISSION; MONITORING; BENZANTHRACENE; BENZOPYRENE; CARBON MONOXIDE; CHEMICAL ANALYSIS; CONDENSED AROMATICS; EXXON LIQUEFACTION PROCESS; FLUE GAS; LIGNITE; LOADING RATE; NITROGEN OXIDES; ON-LINE MEASUREMENT SYSTEMS; PERYLENE; PYRENE; TEMPERATURE EFFECTS; AROMATICS; BROWN COAL; CARBON COMPOUNDS; CARBON OXIDES; CARBONACEOUS MATERIALS; CHALCOGENIDES; COAL; COAL LIQUEFACTION; ENERGY SOURCES; FLUIDS; FOSSIL FUELS; FUEL GAS; FUELS; GAS FUELS; GASEOUS WASTES; GASES; HYDROCARBONS; LIQUEFACTION; LIQUID FUELS; LIQUIDS; MATERIALS; NITROGEN COMPOUNDS; OILS; ON-LINE SYSTEMS; ORGANIC COMPOUNDS; OTHER ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PETROLEUM PRODUCTS; THERMOCHEMICAL PROCESSES; WASTES; 014000* - Coal, Lignite, & Peat- Combustion; 500200 - Environment, Atmospheric- Chemicals Monitoring & Transport- (-1989)

Citation Formats

Schirmer, R M, Gill, M D, and Nickeson, D A. PAH emissions from combustion of coal liquids in industrial furnace. United States: N. p., 1983. Web.
Schirmer, R M, Gill, M D, & Nickeson, D A. PAH emissions from combustion of coal liquids in industrial furnace. United States.
Schirmer, R M, Gill, M D, and Nickeson, D A. Sat . "PAH emissions from combustion of coal liquids in industrial furnace". United States.
@article{osti_6036096,
title = {PAH emissions from combustion of coal liquids in industrial furnace},
author = {Schirmer, R M and Gill, M D and Nickeson, D A},
abstractNote = {The possible environmental impact of substituting fuel oils derived from coal instead of petroleum was investigated using an industrial furnace. Emphasis was placed on the emissions of polynuclear aromatic hydrocarbons (PAH). The nonpetroleum fuel oil (ECLP-SS) was produced from Texas lignite coal by the Exxon Donor Solvent Process at the Exxon Coal Liquefaction Pilot Plant. The effects of furnace loading and flue-gas temperature on PAH emissions were studied by varying both the firing rate of the burner and the amount of wall insulation in the water-cooled furnace. The research furnace was fully instrumented for measuring the concentration of oxygen, carbon monoxide (CO), and nitrogen oxides (NO/sub x/) in the flue gas. PAH emissions were measured by a special sampling train and analytical method. Seventeen successful test runs were completed using the ECLP-SS, natural gas, and No. 6 fuel oil. Highly luminous flames indicated the formation of carbon particles during the combustion of both fuel oils; however, no visible soot emissions were observed with either fuel oil over the entire range of operation. The very low level of CO emissions indicated complete combustion with all test fuels at all operating conditions, and the calculated combustion efficiencies were 99.9+ percent. As expected, because of its low nitrogen content, NO/sub x/ emissions with ECLP-SS were below the Federal standard for new stationary sources. There are no PAH emission limits in the Federal standards at this time, and none are planned. We used the predominant PAH species of pyrene, benz(a)anthracene, benzo(a)pyrene, benzo(e)pyrene, benzo(b)fluoranthene, and benzo(g,h,i)perylene to indicate total PAH concentration. When compared at the same furnace condition, we found that PAH emissions were not statistically different for the three fuels tested. Therefore, we conclude that the combustion of coal-derived fuel oils should not generate objectionable PAH emissions in industrial furnaces.},
doi = {},
url = {https://www.osti.gov/biblio/6036096}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {1}
}

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