Chemical reactivity of polycyclic organic compounds adsorbed on coal fly ash and related solid surfaces: Final report, July 1, 1984-June 30, 1987
Our work has largely been concerned with the phototransformation of PAHs adsorbed on coal ashes and on various model adsorbents (silica gel, activated alumina, porous glass, graphite). PAHs investigated were: pyrene, anthracene, benzopyrene, benzanthracene, and phenanthrene. PAH vapors were deposited onto adsorbent surfaces. Some were illuminated. Adsorbents were then analyzed for PAH content. Results of chemical composition of adsorbents are presented. Observed reactivities of the PAHs are summarized. It was found that the carbon content of fly ash affected the photodecomposition. Fractionation of coal ashes was then performed. Enthalpies of adsorption of PAHs on ash and the adsorption isotherms for pyrene are presented. Also included in this study is the reactivity of PAHs in the presence of NO/sub 2/. 85 refs., 8 figs., 9 tabs. (CBS)
- Research Organization:
- Tennessee Univ., Knoxville (USA). Dept. of Chemistry
- DOE Contract Number:
- AS05-81ER60006
- OSTI ID:
- 5701221
- Report Number(s):
- DOE/ER/60006-6; ON: DE88004517
- Country of Publication:
- United States
- Language:
- English
Similar Records
Resistance to photochemical decomposition of polycyclic aromatic hydrocarbons vapor-adsorbed on coal fly ash
Photolysis of polycyclic aromatic hydrocarbons adsorbed on fly ash
Related Subjects
010900* -- Coal
Lignite
& Peat-- Environmental Aspects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500 -- Photochemistry
ADSORBENTS
ADSORPTION
ADSORPTION HEAT
ADSORPTION ISOTHERMS
AEROSOL WASTES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
ANTHRACENE
AROMATICS
ASHES
BENZANTHRACENE
BENZOPYRENE
CARBON
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
COAL
COMPARATIVE EVALUATIONS
CONDENSED AROMATICS
DECOMPOSITION
DEPOSITION
DOCUMENT TYPES
ELEMENTAL MINERALS
ELEMENTS
ENERGY SOURCES
ENTHALPY
FLY ASH
FOSSIL FUELS
FRACTIONATION
FUELS
GLASS
GRAPHITE
HYDROCARBONS
ILLUMINANCE
ISOTHERMS
MATERIALS
MINERALS
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
PHENANTHRENE
PHOTOCHEMICAL REACTIONS
PHYSICAL PROPERTIES
POLYCYCLIC AROMATIC HYDROCARBONS
PROGRESS REPORT
PYRENE
RESIDUES
SEPARATION PROCESSES
SILICA GEL
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
SURFACES
THERMODYNAMIC PROPERTIES
WASTES
YIELDS