Online fast pyrolysis of cellulose over titanium dioxide using tandem micro -reactor -GC -MS
Küçük Resim Yok
Tarih
2020
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this work, the catalytic effect of titanium dioxide (TiO 2 ) on the online fast pyrolysis of cellulose was inves- tigated using a tandem micro reactor coupled to a gas chromatograph-mass spectrometer (GC -MS) system. This system was used in the following two different modes: in -situ and ex -situ . The results obtained with TiO 2 were compared with those of zeolite (HZSM-5) under identical pyrolysis conditions. Levoglucosan was the major product in the non -catalytic pyrolysis of cellulose. As for the catalytic pyrolysis of cellulose at 500 ? C with TiO 2 ( in -situ ), the peak of levoglucosan disappeared whereas aromatic hydrocarbons such as benzene, toluene and naphthalene were newly detected. In this case, oxygenated compounds such as furfural, furan, methylfuran were still observed for TiO 2 whereas oxygenated compounds (i.e, furan, benzofuran, methylbenzofuran, acetone and 2-butanone) with low yields were observed for in -situ catalytic pyrolysis with HZSM-5. For ex -situ catalytic py- rolysis of cellulose at 500 ? C using TiO 2 , oxygen -containing compounds were hardly formed, while various ar- omatic hydrocarbons were detected. When the ex -situ pyrolysis of cellulose with HZSM-5 was carried out, the yields of the aromatic hydrocarbons were comparable to those with TiO 2 .
Açıklama
Anahtar Kelimeler
Catalytic pyrolysis, Titanium oxide, Cellulose, Online pyrolysis-GC-MS, Tandem micro-reactor
Kaynak
Sustainable Chemistry and Pharmacy
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
16
