skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Biological removal of organic constituents in quench water from a slagging, fixed-bed coal-gasification pilot plant

Abstract

This study is part of an effort to assess the efficiency of activated-sludge treatment for removal of organic constituents from high-Btu coal-gasification pilot-plant quench waters. A sample of raw-gas quench water was obtained from the Grand Forks Energy and Technology Center's pilot plant, which employs the slagging, fixed-bed gasification process. The quench water generated in the processing of Indian Head lignite was pretreated to reduce ammonia and alkalinity, and then diluted and subjected to long-term biological treatment, followed by detailed characterization and analysis of organic constituents. The pretreated (influent) and treated (effluent) samples were extracted using a methylene chloride, pH-fractionation method to obtain acid, base, and neutral fractions, which were analyzed by capillary-column gas chromatography/mass spectrometry (GC/MS). Over 99% of the total extractable and chromatographable organic material in the influent acid fraction was composed of phenol and alkylated phenols. Biological treatment removed these compounds almost completely. Major components of the influent base fraction were alkylated pyridines, anilines, aminopyrroles, imidazoles and/or pyrazoles, diazines, and quinolines. Removal efficiency of these compounds ranged between 90 and 100%. The influent neutral fraction was composed mainly of cycloalkanes, cycloalkenes, naphthalene, indole, acetophenone, and benzonitrile. Alkylated benzenes were generally absent. Removal efficiencies of these compounds weremore » generally very good, except for certain alkylated cycloalkanes and cycloalkenes. Results are compared with those of a similar study on HYGAS coal-gasification quench water.« less

Authors:
;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
5531569
Report Number(s):
ANL/PAG-1
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; ACTIVATED SLUDGE PROCESS; PERFORMANCE TESTING; FUEL GAS; QUENCHING; ORGANIC COMPOUNDS; REMOVAL; WASTE WATER; BIODEGRADATION; AMMONIA; ANILINE; COAL GASIFICATION; EXTRACTION; GAS CHROMATOGRAPHY; HIGH BTU GAS; MASS SPECTROSCOPY; PHENOLS; PILOT PLANTS; PYRIDINES; QUINOLINES; AMINES; AROMATICS; AZINES; CHEMICAL REACTIONS; CHROMATOGRAPHY; DECOMPOSITION; FLUIDS; FUELS; FUNCTIONAL MODELS; GAS FUELS; GASES; GASIFICATION; HETEROCYCLIC COMPOUNDS; HYDRIDES; HYDROGEN COMPOUNDS; HYDROXY COMPOUNDS; LIQUID WASTES; MANAGEMENT; NITROGEN COMPOUNDS; NITROGEN HYDRIDES; ORGANIC NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; PROCESSING; SEPARATION PROCESSES; SPECTROSCOPY; TESTING; THERMOCHEMICAL PROCESSES; WASTE MANAGEMENT; WASTE PROCESSING; WASTES; WATER; 010800* - Coal, Lignite, & Peat- Waste Management; 010404 - Coal, Lignite, & Peat- Gasification

Citation Formats

Stamoudis, V C, and Luthy, R G. Biological removal of organic constituents in quench water from a slagging, fixed-bed coal-gasification pilot plant. United States: N. p., 1980. Web. doi:10.2172/5531569.
Stamoudis, V C, & Luthy, R G. Biological removal of organic constituents in quench water from a slagging, fixed-bed coal-gasification pilot plant. United States. https://doi.org/10.2172/5531569
Stamoudis, V C, and Luthy, R G. 1980. "Biological removal of organic constituents in quench water from a slagging, fixed-bed coal-gasification pilot plant". United States. https://doi.org/10.2172/5531569. https://www.osti.gov/servlets/purl/5531569.
@article{osti_5531569,
title = {Biological removal of organic constituents in quench water from a slagging, fixed-bed coal-gasification pilot plant},
author = {Stamoudis, V C and Luthy, R G},
abstractNote = {This study is part of an effort to assess the efficiency of activated-sludge treatment for removal of organic constituents from high-Btu coal-gasification pilot-plant quench waters. A sample of raw-gas quench water was obtained from the Grand Forks Energy and Technology Center's pilot plant, which employs the slagging, fixed-bed gasification process. The quench water generated in the processing of Indian Head lignite was pretreated to reduce ammonia and alkalinity, and then diluted and subjected to long-term biological treatment, followed by detailed characterization and analysis of organic constituents. The pretreated (influent) and treated (effluent) samples were extracted using a methylene chloride, pH-fractionation method to obtain acid, base, and neutral fractions, which were analyzed by capillary-column gas chromatography/mass spectrometry (GC/MS). Over 99% of the total extractable and chromatographable organic material in the influent acid fraction was composed of phenol and alkylated phenols. Biological treatment removed these compounds almost completely. Major components of the influent base fraction were alkylated pyridines, anilines, aminopyrroles, imidazoles and/or pyrazoles, diazines, and quinolines. Removal efficiency of these compounds ranged between 90 and 100%. The influent neutral fraction was composed mainly of cycloalkanes, cycloalkenes, naphthalene, indole, acetophenone, and benzonitrile. Alkylated benzenes were generally absent. Removal efficiencies of these compounds were generally very good, except for certain alkylated cycloalkanes and cycloalkenes. Results are compared with those of a similar study on HYGAS coal-gasification quench water.},
doi = {10.2172/5531569},
url = {https://www.osti.gov/biblio/5531569}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Feb 01 00:00:00 EST 1980},
month = {Fri Feb 01 00:00:00 EST 1980}
}