A Study of the Mechanisms of Guaiacol Pyrolysis Based on Free Radicals Detection Technology
Keyword(s):
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.
2013 ◽
Vol 634-638
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pp. 1637-1642
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1992 ◽
Vol 114
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pp. 2938-2943
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2017 ◽
Vol 50
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pp. 112-121
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1972 ◽
Vol 14
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pp. 1792-1799
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1993 ◽
Vol 34
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pp. 8509-8512
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2019 ◽