锰催化剂腐殖酸推机理.pdf

Fuel Processing Technology, 10 (1985) 239--247 239
Elsevier Science Publishers ., Amsterdam --Prinn [2] how
low-temperature air oxidation of coals in pyridine followed by thermolysis
in absence of air can yield significant quantities of low molecular mass (MM)
compounds. The mechanism was thought to involve the formation and
decomposition of carboxyl or hydroperoxide groups from the benzylic
groups of alkyl bridges in the coal structure. Gaines et al. have confirmed
[3] that mild oxidation of a number of model aromatic compounds con-
taining methylene and alkyl groups occurs primarily at CH2 groups a to the
ring.
0378-3820/85/$ © 1985 Elsevier Science Publishers
In principle, any successful chemical oxidation should have its electro-
chemical counterpart, and the anodic oxidation of coal has been the subject
of considerable interest since the 1920s. Recently, this interest has been
directed towards energy generation, and the production of hydrogen by the
so-called "electrochemical gasification" of coal. Investigations by us [ 4] and
others [5,6] have shown the implication of inorganic redox systems, and
that anodic production of carbon dioxide originates principally in the or-
ganic material leached from the coal. However, some electrochemical attack
on the coal macromolecule was also obse