Study of time reaction on alkaline pretreatment applied to rice husk on biomass component extraction

Study of time reaction on alkaline pretreatment applied to rice husk on biomass component extraction

Rice husk (RH) residue was submitted to a sequence of experimental procedures, specifically to investigate the reaction time influence of NaOH pretreatment on the extraction of silica, hemicellulose, and lignin components. In order to follow the extraction of each non-cellulosic components of rice h...

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Bibliographic Details
Published in:Biomass conversion and biorefinery Vol. 8; no. 1; pp. 189 - 197
Main Authors: Monte, Lara Soares, Escócio, Viviane Alves, de Sousa, Ana Maria Furtado, Furtado, Cristina Russi Guimarães, Leite, Marcia Christina Amorim Moreira, Visconte, Leila Lea Yuan, Pacheco, Elen Beatriz Acordi Vasquez
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-03-2018
Springer Nature B.V
Subjects:
Biotechnology
Electron microscopy
Energy
Fourier transforms
Infrared analysis
Lignin
Original Article
Pretreatment
Process parameters
Reaction time
Renewable and Green Energy
Silicon dioxide
Thermogravimetric analysis
Rice husk
Lignin
Hemicelulose
Alkaline pretreatment
Silica
Cellulose
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Summary:Rice husk (RH) residue was submitted to a sequence of experimental procedures, specifically to investigate the reaction time influence of NaOH pretreatment on the extraction of silica, hemicellulose, and lignin components. In order to follow the extraction of each non-cellulosic components of rice husk, techniques such as Fourier transform infrared spectroscopy, thermogravimetric analysis, X-ray diffraction analysis, and scanning electron microscopy were performed on untreated RH and samples collected from the NaOH reaction media at several different reaction times, as well as the sample after alkaline-peroxide treatment. Under the process parameters used in the present study, the results showed that a great part of hemicellulose and silica contents was removed during the first 30 min of reaction time in NaOH pretreatment. Although there is evidence that NaOH pretreatment also removed some lignin content, the complete delignification process was more effective just after alkaline-peroxide reaction, which produced material rich in type I cellulose.
ISSN:2190-6815
2190-6823
DOI:10.1007/s13399-017-0271-9