Towards directional pyrolysis of xylan: Understanding the roles of alkali/alkaline earth metals and pyrolysis temperature

Kuo Zeng, Biao Wang, Shengpeng Xia, Chaoxian Cui, Chenyang Wang, Anqing Zheng, Kun Zhao, Zengli Zhao, Haibin Li and M.D. Isobaev

Energy, 2022, vol. 254, issue PA

Abstract: To identify the roles of alkali/alkaline earth metals (AAEM) and reaction temperature during pyrolysis of hemicellulose, the effects of AAEM doping on the pyrolysis behaviors, kinetics, and product yields of xylan at different pyrolysis temperatures were assessed. The results demonstrated that the yields of anhydrosugars from pyrolysis of xylan were dependent on the AAEM cations and their doping concentrations. Demineralization achieved the directional conversion of xylan into xylosan at 300 °C. The doping of even 0.05 mmol/g AAEM significantly suppressed their formation. The yields of xylosan from pyrolysis of xylan doped with different AAEM cations decreased in the following order: Mg2+Keywords: Biomass pyrolysis; Hemicellulose pyrolysis; Alkali and alkaline earth metals; Pretreatment; Anhydrosugars (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:254:y:2022:i:pa:s0360544222011483

DOI: 10.1016/j.energy.2022.124245

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