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Origin of furanic compounds in thermal degradation of cellulosic insulating paper
Author(s) -
Scheirs John,
Camino Giovanni,
Avidano Mauro,
Tumiatti Wander
Publication year - 1998
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19980926)69:13<2541::aid-app3>3.0.co;2-a
Subject(s) - levoglucosan , cellulose , furfural , cellulosic ethanol , kraft paper , lignin , yield (engineering) , chemistry , hydroxymethyl , organic chemistry , degradation (telecommunications) , pulp and paper industry , chemical engineering , materials science , polymer chemistry , composite material , catalysis , telecommunications , aerosol , computer science , biomass burning , engineering
The chemical components of cellulosic insulation (i.e., Kraft paper, cellulose, lignin, pentosans) used in electrical transformers were aged in transformer oil to determine the relative yield of furanic degradation products. The results show that the pentosans component of the paper give, by far, the highest yield of 2‐furfural followed by cellulose, levoglucosan, and lignin. However, the pentosans did not produce any detectable quantities of either 5‐hydroxymethyl‐2‐furfuraldehyde or 2‐furfurol, both of which are known to be produced by the degradation of Kraft paper. α‐Cellulose was found to give 3 times as much 2‐furfural as levoglucosan, which is a degradation product of cellulose, suggesting another pathway to 2‐furfural production from cellulose than exclusively through the commonly quoted mechanism in which levoglucosan is the intermediate. It was also found that the production of 2‐furfural from levoglucosan appears to be accelerated by acidic conditions in oxidized oil. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 69: 2541–2547, 1998