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Thermochemistry and product studies of the isomerization and cracking of hydroaromatic molecules and the reactions of hydrogen atom produced from radical oxidation intermediates of hydroaromatic molecules. [1, 2 dihydronapthalene]

Conference ·
OSTI ID:5722058
; ;
The oxidation of hydroaromatic molecules of donor solvents and of hydroaromatic structure of coal during liquefaction occurs in stepwise fashion involving hydroaromatic radicals. For the prototype of hydroaromatic donors, tetralin, the formation of intermediate radicals leads to rearrangements and fragmentations. In addition, the scission of hydrogen atom from intermediate radicals leads to hydrocracking, production of H/sub 2/ and other reactions. In this paper, we present data from two sets of experiments bearing on the mechanism and energetics of hydroaromatic ring opening reactions, and present evidence showing that scission of hydrogen atom occurs in solution at 427/sup 0/C during the decomposition of 1,2-dihydronaphthalene (DHN), an oxidation intermediate in coal liquefaction, in tetralin.
Research Organization:
Pacific Northwest Lab., Richland, WA (USA)
DOE Contract Number:
AC06-76RL01830
OSTI ID:
5722058
Report Number(s):
PNL-SA-11281; CONF-830807-11; ON: DE83016777
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
AROMATICS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
COAL LIQUEFACTION
CONDENSED AROMATICS
CRACKING
DECOMPOSITION
HIGH TEMPERATURE
HYDROCARBONS
HYDROCRACKING
ISOMERIZATION
KINETICS
LIQUEFACTION
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
PYROLYSIS
RADICALS
REACTION INTERMEDIATES
REACTION KINETICS
SOLVENTS
TETRALIN
THERMOCHEMICAL PROCESSES