Impact of hot compressed water pretreatment on the structural changes of woody biomass for bioethanol production
By Lingping Xiao, Zhao-Jun Sun, Zhengjun Shi, Feng Xu, R. Sun. BioResources, 2011
203 citations recorded by the source corpus.
As an initial step in an alternative use of woody biomass to produce bioethanol, this work was aimed at investigating the effect of hot compressed water (HCW) pretreatment within the temperature range 100 to 200 °C in a batch-type reactor on the structural changes of Tamarix ramosissima. The untreated and pretreated solid residues were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), r transform infrared spectroscopy (FT-IR), solid-state cross polarization/magic angle spinning (CP/MAS), 13C NMR spectroscopy, and thermogravimetric analysis (TGA), as well as chemical methods. The results showed that HCW pretreatment solubilized mainly hemicelluloses and resulted in enriched cellulose and lignin content in the pretreated solids. It was found that the deposition of lignin droplets on the residual surfaces was produced during pretreatment under the hot water conditions above 140 °C. In addition, the removal of hemicelluloses and lignin re-localisation as a result of condensation reactions under the severe pretreatment condition may lead to an increase in cellulose crystallinity and thermal stability of biomass solid residues, thus consequently influencing the downstream digestibility of biomass for sugars and bioethanol production.
Subfields: Biomaterials, Biomedical Engineering
View Paper: https://www.semanticscholar.org/paper/c7bbee0a36dec71493a689df7df83a37b800b4d9
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In Biomedical Engineering
Citations in the corpus
- A review of wood thermal pretreatments to improve wood composite properties (2013, methodology): “…et al. 1988; Hill 2006; Boonstra and Tjeerdsma 2006; Boonstra 2008; Agbor et al. 2011), hot compressed water treatment (Kobayashi et al. 2009; Xiao et al. 2011), water hydrolysis (Harris 1952), wet torrefaction (Yan et al. 2010), hydrothermal carbonization (Funke and Ziegler 2010; Falco et…”
- Acid Hydrolysis of Lignocellulosic Biomass: Sugars and Furfurals Formation (2020, background): “[67], which investigated hydrothermal pretreatment at lower temperatures of 100–200 ◦C.”