期刊
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
卷 127, 期 -, 页码 394-401出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jaap.2017.07.010
关键词
Biomass pyrolysis; Platform chemicals; Synchrotron IR; Tgir
资金
- Australian Research Council
- Australian Paper
- Carter Holt Harvey
- Orora
- Circa
- Norske Skog
- Visy through the Industry Transformation Research Hub [IH130100016]
- Australian Synchrotron [9882]
This study investigates the functional group changes that occur in biomass during slow pyrolysis to identify a temperature range suitable for conversion of biomass to platform chemicals. The synchrotron based infra-red (IR) micro-spectroscopy and thermogravimetry-infra-red spectroscopy (TGIR) coupled analysis have been used in this study to examine the functional group changes in three different types of biomass samples. Synchrotron IR results show that the onset of chemical changes on biomass occurs at 200 degrees C and most of the surface functional groups disappear by 400 degrees C. The TGIR analysis shows majority of the volatile species are liberated between 200 and 400 degrees C and major mass loss happens between 195 and 432 degrees C for all the biomass samples. The functional groups on biomass surface that liberate volatile species like aromatics, alcohols and alkanes and the possible reaction mechanism have also been identified. The results of this study suggest that the ideal temperature range to study the thermochemical conversion of biomass to platform chemicals is 200-400 degrees C.
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