TY - JOUR
T1 - Steam Pyrolysis of Polyimides
T2 - Effects of Steam on Raw Material Recovery
AU - Kumagai, Shogo
AU - Hosaka, Tomoyuki
AU - Kameda, Tomohito
AU - Yoshioka, Toshiaki
N1 - Publisher Copyright:
© 2015 American Chemical Society.
Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 2015/10/21
Y1 - 2015/10/21
N2 - Aromatic polyimides (PIs) have excellent thermal stability, which makes them difficult to recycle, and an effective way to recycle PIs has not yet been established. In this work, steam pyrolysis of the aromatic PI Kapton was performed to investigate the recovery of useful raw materials. Steam pyrolysis significantly enhanced the gasification of Kapton at 900°C, resulting in 1963.1 mL g-1 of a H2 and CO rich gas. Simultaneously, highly porous activated carbon with a high BET surface area was recovered. Steam pyrolysis increased the presence of polar functional groups on the carbon surface. Thus, it was concluded that steam pyrolysis shows great promise as a recycling technique for the recovery of useful synthetic gases and activated carbon from PIs without the need for catalysts and organic solvents.
AB - Aromatic polyimides (PIs) have excellent thermal stability, which makes them difficult to recycle, and an effective way to recycle PIs has not yet been established. In this work, steam pyrolysis of the aromatic PI Kapton was performed to investigate the recovery of useful raw materials. Steam pyrolysis significantly enhanced the gasification of Kapton at 900°C, resulting in 1963.1 mL g-1 of a H2 and CO rich gas. Simultaneously, highly porous activated carbon with a high BET surface area was recovered. Steam pyrolysis increased the presence of polar functional groups on the carbon surface. Thus, it was concluded that steam pyrolysis shows great promise as a recycling technique for the recovery of useful synthetic gases and activated carbon from PIs without the need for catalysts and organic solvents.
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U2 - 10.1021/acs.est.5b03253
DO - 10.1021/acs.est.5b03253
M3 - Article
C2 - 26488423
AN - SCOPUS:84947279886
VL - 49
SP - 13558
EP - 13565
JO - Environmental Science & Technology
JF - Environmental Science & Technology
SN - 0013-936X
IS - 22
ER -