Nitration of polynuclear aromatic hydrocarbons in coal combustors and exhaust streams. Quarterly report, April 1, 1994--June 30, 1994

Technical Report · Thu Sep 01 00:00:00 EDT 1994

OSTI ID:10192745

Yu, Liya; Cho, Sunghwan; Hildemann, L; Niksa, S

The objectives of this three-year project are to (1) identify the conditions which promote the nitration of PAH during primary combustion, reburning, hot gas cleanup, and particulate removal; and (2) investigate the potential relationship between NO{sub x} abatement and PAH nitration. A novel coal flow reactor burning actual coal products operates over the activity during this quarter on the sample preparation side was devote to experiments on the oxidative pyrolysis of coal volatiles. Previously, our experiments characterized primary devolatilization and secondary volatiles pyrolysis. For the first time we report complete product distributions for controlled extents of oxidative pyrolysis at various oxygen levels. However, we also found out that the levels of PAH in oxidative pyrolysis products are too low to recover for detailed chromatographic analysis, even at oxygen concentrations as low as 2%.

• Research Organization: Stanford Univ., CA (United States). Dept. of Civil Engineering
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG22-91PC91284
• OSTI ID: 10192745
• Report Number(s): DOE/PC/91284-11; ON: DE95002432; BR: AA1525050
• Resource Relation: Other Information: PBD: Sep 1994
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL
PYROLYSIS
POLYCYCLIC AROMATIC HYDROCARBONS
LIQUID COLUMN CHROMATOGRAPHY
NITRATION
COAL TAR
FRACTIONATION
DEVOLATILIZATION
OXIDATION
ORIGIN
PROGRESS REPORT
EXPERIMENTAL DATA
GAS CHROMATOGRAPHY
010600
014000
010409
PROPERTIES AND COMPOSITION
COMBUSTION
PYROLYSIS AND CARBONIZATION