Adsorption of UCG organics by coal, char, activated char and ash

Journal Article · Thu Jan 01 04:00:00 EST 1987 · In Situ; (United States)

OSTI ID:7106360

Humenick, M J; Morgan, J R; Nolan, B T

The aqueous adsorption of Underground Coal Gasification (UCG) organics generated during gas production was tested in the laboratory to determine the organic's affinity for surroundings in the region of the burn cavity. Coal from the Rosebud coal mine in Hanna, Wyoming along with char, activated char, and ash were studied during this work. Contaminated ground water was simulated by preparing a solution of Hanna IVB condensate in Hanna ground water. Adsorption isotherm studies and leaching tests were performed at 5 and 22/sup 0/C. Leaching tests using tap water showed that only the char could release organic material to water. The adsorption tests showed that all four types of media could adsorb organics from solution. Measures of organic materials in water included Total Organic Carbon (TOC), phenol, o-cresol, and p+m cresol. The experiments indicated that activated char was the most effective adsorbent, while the others were about equal in effectiveness. Adsorption behavior could be modeled in many instances by the equations of Langmuir and Freundlich. However, not all data taken followed these models.

• Research Organization: Dept. of Civil Engineering, The Univ. of Wyoming, Laramie, WY (US)
• OSTI ID: 7106360
• Journal Information: In Situ; (United States), Journal Name: In Situ; (United States) Vol. 11:4; ISSN ISOMD
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
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& Peat-- Gasification
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& Peat-- Environmental Aspects
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACTIVATED CARBON
ADSORBENTS
ADSORPTION
AROMATICS
ASHES
CARBON
CARBONACEOUS MATERIALS
CHARCOAL
CHARS
COAL
COAL GASIFICATION
CONTROL
CRESOLS
ELEMENTS
ENERGY SOURCES
ENVIRONMENTAL IMPACTS
FEDERAL REGION VIII
FOSSIL FUELS
FUELS
GASIFICATION
GROUND WATER
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
IN-SITU GASIFICATION
IN-SITU PROCESSING
MATERIALS
MATHEMATICAL MODELS
NONMETALS
NORTH AMERICA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHENOLS
POLLUTION
POLLUTION CONTROL
PROCESSING
PYROLYSIS PRODUCTS
RESIDUES
SORPTION
THERMOCHEMICAL PROCESSES
USA
WATER
WATER POLLUTION
WATER POLLUTION CONTROL
WYOMING