Journal
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
Volume 71, Issue -, Pages 55-61Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jtice.2016.12.028
Keywords
Water hyacinth; Subcritical water treatment; Cellulose recovery
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The effect of subcritical water (SCW) pretreatment on cellulose recovery of water hyacinth was investigated in this study. Before SCW treatment, cellulose and hemicellulose contents of dried water hyacinth sample were 25.0% and 11.0%, respectively. After being treated at 165 degrees C and 50 bar for 30 min with a water to dried sample ratio of 10:1 (ml/g), cellulose content in the treated sample was 68.2% which is 131.5% of the untreated sample. Pretreatment using H2SO4 was also carried out in order to understand the effect of the chemical on lignocellulose degradation and compare it with that of SCW pretreatment. The results revealed that SCW treatment was an environmentally friendly method to recovery cellulose and remove lignin from water hyacinth which is promising for bioethanol production. The effects of SCW treatment on the composition and structure of water hyacinth were studied by TGA, FTIR and SEM. (C) 2016 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
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