Process related effects on the chemical and toxicologic characteristics of coal derived fuels
As a component of an ongoing program to assess the potential health effects of coal conversion materials, we have recently completed chemical and toxicologic studies of a sample set collected on selected days of a 25-day demonstration run of a catalytic two stage direct coal liquefaction (CTSL) process. There was an increase in heteroatomic, nitrogen containing polycyclic aromatic compounds (NPAC) and hydroxy-substituted PAC, compounds as the operation time of the pilot plant increased. The proportion of material which boiled above 975/sup 0/F also increased in the solids-free portion of the recycle slurry oil as pilot plant operation time increased. As anticipated from the increase in NPAC concentration during the run, the microbial mutagenic activity of selected process materials also increased as a function of run time. Likewise, the tumorigenicity of the materials produced later in the demonstration run was higher than that of those produced initially. These results support the view that catalyst deactivation during the course of the run gives rise not only to lower coal conversion, but also to increased toxicologic activity. 9 refs., 3 figs., 3 tabs.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 5913588
- Report Number(s):
- PNL-SA-13676; CONF-860435-30; ON: DE86011134
- Resource Relation:
- Conference: Atomic and molecular physics conference, Aberdeen, Scotland, 8 Apr 1986
- Country of Publication:
- United States
- Language:
- English
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63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
CATALYSTS
DEACTIVATION
COAL LIQUIDS
BOILING POINTS
CARCINOGEN SCREENING
CHEMICAL COMPOSITION
MUTAGEN SCREENING
ALKYLATION
CORRELATIONS
DISTILLATION
EXPERIMENTAL DATA
HIGH TEMPERATURE
HYDROGENATION
LIQUID COLUMN CHROMATOGRAPHY
MICE
NEOPLASMS
ORGANIC NITROGEN COMPOUNDS
PILOT PLANTS
POLYCYCLIC AROMATIC HYDROCARBONS
SALMONELLA TYPHIMURIUM
TIME DEPENDENCE
TSL PROCESS
ANIMALS
AROMATICS
BACTERIA
CHEMICAL REACTIONS
CHROMATOGRAPHY
COAL LIQUEFACTION
DATA
DISEASES
FLUIDS
FUNCTIONAL MODELS
HYDROCARBONS
INFORMATION
LIQUEFACTION
LIQUIDS
MAMMALS
MICROORGANISMS
NUMERICAL DATA
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
RODENTS
SALMONELLA
SCREENING
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
VERTEBRATES
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