A kinetic assessment of glucose production from pretreated Gelidium amansii by dilute acid hydrolysis

Tae-Su Jeong, Young-Soo Kim and Kyeong-Keun Oh

Renewable Energy, 2012, vol. 42, issue C, 207-211

Abstract: In this study, acid hydrolysis of glucan derived from Gelidium amansii was evaluated using kinetic interpretation. The primary goal of this study was to gain a more accurate kinetic data of glucose formation and decomposition from a match between a first-order reaction model and the experimental data at final reaction temperature (190 °C) and sulfuric acid concentration (4.0% w/v) in a bomb tube reactor. Reaction rates for the generation of glucose and decomposed products were strongly dependent on reaction temperature and acid concentration. The maximum yield of glucose of 38.09% was found under the conditions. Activation energy (E1) and the pre-exponential factor (A01) for glucose formation were 51.474 kJ/mol and 5.8981 × 104 min−1 respectively. For glucose decomposition, the activation energy (E2) and the pre-exponential factor (A02) were 69.966 kJ/mol and 1.043 × 107 min−1, respectively.

Keywords: Gelidium amansii; Acid hydrolysis; Saccharification; Kinetics (search for similar items in EconPapers)
Date: 2012
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:42:y:2012:i:c:p:207-211

DOI: 10.1016/j.renene.2011.08.014

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