Journal
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
Volume 115, Issue -, Pages 2-7Publisher
INST CHEMICAL ENGINEERS
DOI: 10.1016/j.psep.2017.05.015
Keywords
C4-C6 monoalcohols; Hydrodeoxygenation; Pt-ReOx/Zr-P; Sorbitol; Biofuels
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Funding
- National Research Foundation of Korea (NRF) - Korean Government (MSIP) [NRF-2015H1D3A1066513]
- National Research Foundation of Korea (NRF) - Korean Government (Ministry of Education, Science and Technology (MEST)) [NRF-2016R1D1A1B03933027]
- core KRICT project of the Korea Research Institute of Chemical Technology [KK1601-B00]
- National Research Council of Science & Technology (NST), Republic of Korea [KK1601-B00] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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A bifunctional catalyst, Pt-ReOx, supported on zirconium phosphate (Pt-ReOx/Zr-P), was prepared and tested for aqueous-phase hydrodeoxygenation (APHDO) of waste biomass-derived carbohydrate (e.g., sorbitol) to produce C4-C6 monoalcohols such as butanol, pentanol, and hexanol in a high-pressure continuous flow reactor. For steady-state operation, the reaction parameters were optimized to achieve the highest yield of C4-C6 monoalcohols from APHDO of sorbitol. Approximately 30% yield of C4-C6 monoalcohols was reached at optimal reaction conditions (temperature: 453 K, pressure: 6.21 MPa, weight hourly space velocity (WHSV): 0.16 h(-1)) for APHDO of sorbitol over the Pt-ReOx/Zr-P catalyst. The effect of catalyst support for monoalcohol production was also evaluated by comparison between the Pt-ReOx/Zr-P and carbon supported Pt-ReOx (Pt-ReOx/C) catalysts. The Zr-P supported catalyst exhibited a four times higher yield of C4-C6 monoalcohols than the carbon supported catalyst, suggesting that acid sites atomically separated from metal sites play a crucial role in producing monoalcohols via C-O bond cleavage of chemical intermediates produced during APHDO of sorbitol. (C) 2017 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
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