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Title: Process related effects on the chemical and toxicologic characteristics of coal derived fuels. [Changes over 25 day run]

Abstract

As a component of an ongoing program to assess the potential health effects of coal conversion materials, the authors 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.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Chemical Tech. Dept., Pacific Northwest Lab., P.O. Box 999, Richmond, WA
OSTI Identifier:
5602905
Report Number(s):
CONF-860425-
Journal ID: CODEN: ACGPA
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Conference
Journal Name:
Am. Chem. Soc., Div. Gas Fuel Chem., Prepr.; (United States)
Additional Journal Information:
Journal Volume: 31:2; Conference: 191. American Chemical Society national meeting, New York, NY, USA, 13 Apr 1986
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; CATALYSIS; COAL LIQUEFACTION; CATALYSTS; HEALTH HAZARDS; COAL LIQUIDS; TOXICITY; TSL PROCESS; DEMONSTRATION PROGRAMS; AROMATICS; BOILING POINTS; DEACTIVATION; HETEROCYCLIC COMPOUNDS; HIGH TEMPERATURE; MUTAGENESIS; ORGANIC NITROGEN COMPOUNDS; PILOT PLANTS; POLYCYCLIC AROMATIC HYDROCARBONS; FLUIDS; FUNCTIONAL MODELS; HAZARDS; HYDROCARBONS; LIQUEFACTION; LIQUIDS; ORGANIC COMPOUNDS; PHYSICAL PROPERTIES; THERMOCHEMICAL PROCESSES; THERMODYNAMIC PROPERTIES; TRANSITION TEMPERATURE; 016000* - Coal, Lignite, & Peat- Health & Safety; 010405 - Coal, Lignite, & Peat- Hydrogenation & Liquefaction; 560306 - Chemicals Metabolism & Toxicology- Man- (-1987)

Citation Formats

Wright, C W, Chess, E K, Bean, R M, Mahlum, D D, Stewart, D L, and Wilson, B W. Process related effects on the chemical and toxicologic characteristics of coal derived fuels. [Changes over 25 day run]. United States: N. p., 1986. Web.
Wright, C W, Chess, E K, Bean, R M, Mahlum, D D, Stewart, D L, & Wilson, B W. Process related effects on the chemical and toxicologic characteristics of coal derived fuels. [Changes over 25 day run]. United States.
Wright, C W, Chess, E K, Bean, R M, Mahlum, D D, Stewart, D L, and Wilson, B W. 1986. "Process related effects on the chemical and toxicologic characteristics of coal derived fuels. [Changes over 25 day run]". United States.
@article{osti_5602905,
title = {Process related effects on the chemical and toxicologic characteristics of coal derived fuels. [Changes over 25 day run]},
author = {Wright, C W and Chess, E K and Bean, R M and Mahlum, D D and Stewart, D L and Wilson, B W},
abstractNote = {As a component of an ongoing program to assess the potential health effects of coal conversion materials, the authors 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.},
doi = {},
url = {https://www.osti.gov/biblio/5602905}, journal = {Am. Chem. Soc., Div. Gas Fuel Chem., Prepr.; (United States)},
number = ,
volume = 31:2,
place = {United States},
year = {Tue Apr 01 00:00:00 EST 1986},
month = {Tue Apr 01 00:00:00 EST 1986}
}

Conference:
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