Molecule-induced homolysis in coal chemistry: Radical intermediates in the thermal decomposition of 1,2-dihydronaphthalene

Conference · Sat Jan 01 04:00:00 EST 1983 · Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States)

OSTI ID:6614759

Franz, J A; Beishline, R R; Camaioni, D M; Dalling, D

Molecule-induced homolysis (MIH), the process by which two closed-shell molecules react to produce free radicals, has been recognized as an important contributing pathway to radical initiation during coal dissolution. The production of organic radicals by MIH and other pathways can lead in stepwise fashion to the production of highly reactive radicals to a significant degree at temperatures > 400/sup 0/C. In this paper, results which show that the decomposition of 1,2-dihydronaphthalene (DHN) involves both 1-hydronaphthyl (1HN) and 2-hydronaphthyl (2HN) radicals as well as 1-tetralyl radical and that the production of 1HN and 2HN leads to the scission of hydrogen atom (H /SUP ./ ) and its participation in subsequent hydrocracking reactions are summarized.

• Research Organization: Pacific Northwest Laboratory, Richland, WA
• OSTI ID: 6614759
• Report Number(s): CONF-830814-
• Conference Information: Journal Name: Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States) Journal Volume: 28:5
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010406* -- Coal & Coal Products-- Pyrolysis & Cracking-- (-1987)
ACTIVATION ENERGY
AROMATICS
ARYL RADICALS
CARBONACEOUS MATERIALS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL
CONDENSED AROMATICS
CRACKING
DECOMPOSITION
DISSOLUTION
ELEMENTS
ENERGY
ENERGY SOURCES
FOSSIL FUELS
FUELS
HIGH TEMPERATURE
HYDROCARBONS
HYDROCRACKING
HYDROGEN
HYDROGENATION
KINETICS
MATERIALS
NAPHTHALENE
NAPHTHYL RADICALS
NONMETALS
ORGANIC COMPOUNDS
PYROLYSIS
RADICALS
REACTION INTERMEDIATES
REACTION KINETICS
THERMOCHEMICAL PROCESSES