Bibliographic Citation
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Title | Oxidative degradation studies and modern concepts of the formation and transformation of organic constituents of coals and sedimentary rocks |
Creator/Author | Hayatsu, R. ; Winans, R.E. ; McBeth, R.L. ; Scott, R.G. ; Moore, L.P. |
Publication Date | 1981 Mar 29 |
OSTI Identifier | OSTI ID: 6348927 |
Report Number(s) | CONF-810308-(Vol.3) |
Other Number(s) | CODEN: ACFPA |
Resource Type | Conference |
Specific Type | Journal Article |
Resource Relation | Am. Chem. Soc., Div. Fuel Chem., Prepr. ; Vol/Issue: 26:1; American Chemical Society symposium on the chemistry of engine combustion deposits; 29 Mar 1981; Atlanta, GA, USA |
Research Org | Argonne National Lab., IL |
Subject | 010600 -- Coal, Lignite, & Peat-- Properties & Composition; ;BITUMINOUS COAL-- OXIDATION;BITUMINOUS COAL-- STRUCTURAL CHEMICAL ANALYSIS;KEROGEN-- OXIDATION;KEROGEN-- STRUCTURAL CHEMICAL ANALYSIS;LIGNIN-- CATAGENESIS;LIGNIN-- OXIDATION;LIGNIN-- STRUCTURAL CHEMICAL ANALYSIS;LIGNITE-- CATAGENESIS;LIGNITE-- OXIDATION;LIGNITE-- STRUCTURAL CHEMICAL ANALYSIS;SUBBITUMINOUS COAL-- OXIDATION;SUBBITUMINOUS COAL-- STRUCTURAL CHEMICAL ANALYSIS; CARBON;COALIFICATION;COPPER OXIDES;DIAGENESIS;DICARBOXYLIC ACIDS;EXPERIMENTAL DATA;GAS CHROMATOGRAPHY;HUMIC ACIDS;HYDROGEN;MASS SPECTROSCOPY;MINERALS;MONTMORILLONITE;NITROGEN;NMR SPECTRA;ORGANIC ACIDS;OXYGEN;PHENOLS;POTASSIUM PERMANGANATES;QUANTITATIVE CHEMICAL ANALYSIS;SIMULATION;SODIUM HYDROXIDES;SULFUR |
Related Subject | ALKALI METAL COMPOUNDS;AROMATICS;BITUMINOUS MATERIALS;BLACK COAL;BROWN COAL;CARBOHYDRATES;CARBONACEOUS MATERIALS;CARBOXYLIC ACIDS;CHALCOGENIDES;CHEMICAL ANALYSIS;CHEMICAL REACTIONS;CHROMATOGRAPHY;CLAYS;COAL;COPPER COMPOUNDS;DATA;ELEMENTS;ENERGY SOURCES;FOSSIL FUELS;FUELS;HYDROGEN COMPOUNDS;HYDROXIDES;HYDROXY COMPOUNDS;INFORMATION;INORGANIC ION EXCHANGERS;ION EXCHANGE MATERIALS;MANGANESE COMPOUNDS;MATERIALS;MINERALS;NONMETALS;NUMERICAL DATA;ORGANIC ACIDS;ORGANIC COMPOUNDS;ORGANIC MATTER;OXIDES;OXYGEN COMPOUNDS;PERMANGANATES;POLYSACCHARIDES;POTASSIUM COMPOUNDS;SACCHARIDES;SEPARATION PROCESSES;SODIUM COMPOUNDS;SPECTRA;SPECTROSCOPY;TRANSITION ELEMENT COMPOUNDS |
Description/Abstract | To better understand the transformation of aliphatic rich materials and lignin-like polymers during catagenesis, oxidative degradation studies of lignite, subbituminous and bituminous coals were carried out using different oxidants.^For comparison with coal oxidation, Green River kerogen and softwood and hardwood lignins were oxidized.^In order to determine how phenolic structures in lignins and lignin-like polymers have been altered during the evolutionary stages of diagenesis, catagenesis and metagenesis, lignin or lignite coal was heated with clay minerals to produce artificial coalification products.^An oxidative degradation study of these artificial coalification products provided some evidence which helps elucidate the alteration of phenolic structures during catagenesis.^Conclusions from the present and previous studies are: (1) at least this lignite and subbituminous coal contain aliphatic rich materials which might have been derived from lipids.^Such materials are no longer identifiable in higher rank coals except cannel coal, because of extensive degradation during catagenesis.^Indeed, trapped volatile compounds extracted from bituminous coals are predominantly aliphatic hydrocarbons which are considered to be degradation products from the macromolecular materials.^However, lignite and anthracite coals contain much less of these hydrocarbons.^During catagenesis aliphatic carbon chains and alicyclics in kerogen are released successively forming crude oil and gas;(2) During diagenesis and early catagenesis lignin polymers are transformed to lignin-like polymers which are incorporated into the low rank coal macromolecules.^At a later stage of catagenesis, these polymers have lost their lignin-like nature as a result of continued and extensive transformation. |
Country of Publication | United States |
Language | English |
Format | Pages: 4-9 |
System Entry Date | 2001 May 13 |
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