Journal
CATALYSTS
Volume 10, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/catal10030295
Keywords
guaiacol; methyl; EPR; reaction pathway
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Funding
- National Key Technologies R&D Program of China [2018YFB1501405]
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In order to understand the reaction mechanism of lignin pyrolysis, the pyrolysis process of guaiacol (o-methoxyphenol) as a lignin model compound was studied by free radical detection technology (electron paramagnetic resonance, EPR) in this paper. It was proven that the pyrolysis reaction of guaiacol is a free radical reaction, and the free radicals which can be detected mainly by EPR are methyl radicals. This paper proposes a process in which four free radicals (radicals 1- C6H4(OH)O*, radicals 5- C6H4(OCH3)O*, methyl radicals, and hydrogen radicals) are continuously rearranged during the pyrolysis of guaiacol.
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