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

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

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.

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  • Jeong, Tae-Su & Kim, Young-Soo & Oh, Kyeong-Keun, 2012. "A kinetic assessment of glucose production from pretreated Gelidium amansii by dilute acid hydrolysis," Renewable Energy, Elsevier, vol. 42(C), pages 207-211.
    • Handle: RePEc:eee:renene:v:42:y:2012:i:c:p:207-211
    DOI: 10.1016/j.renene.2011.08.014
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    1. Taylor, Gail, 2008. "Biofuels and the biorefinery concept," Energy Policy, Elsevier, vol. 36(12), pages 4406-4409, December.
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    1. Pulidindi, Indra Neel & Kimchi, Baruchi B. & Gedanken, Aharon, 2014. "Can cellulose be a sustainable feedstock for bioethanol production?," Renewable Energy, Elsevier, vol. 71(C), pages 77-80.

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