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Aqueous phase reforming of sorbitol over Ca doped Ni/Al2O3 for value-added chemicals production

Mohamad Razlan, Md Radzi and Mohammad Tazli, Azizan and Nur Fatin Dariah, Mohamad Daud and Muhammad Azizi, Topek and Sumaiya, Zainal Abidin (2018) Aqueous phase reforming of sorbitol over Ca doped Ni/Al2O3 for value-added chemicals production. Materials Today: Proceedings, 5 (10 Part 2). pp. 21728-21736. ISSN 2214-7853

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Biomass is currently one of the preferred sustainable and renewable source of energy, with countless potential as a basis for hydrogen and value added chemical production. Various researches has been done to optimize the usage of biomass as the source of energy, one of them is conversion of polyols such as sorbitol to hydrogen and value-added chemicals using the low energy, low temperature, high yield process of aqueous phase reforming, in the presence of suitable and compatible catalyst. In this research, Ni/Al2O3 doped with varying percentage of Ca (0.5%, 3% and 5%) are synthesized via wet impregnation method and the resulting catalysts are subjected to various characterization techniques such as TGA, FESEM-EDX, H2-TPR, BET and XRD to assess the physicochemical properties. The catalytic activity test was carried out in a batch reactor (230˚C, 20 bar and 1 hour) and the resulted liquid products were analyzed using HPLC analysis to determine the products formed. Based on the findings, addition of Ca has shown prodigious effect on physiochemical properties of the Ni/Al2O3, where addition of Ca resulted in lower reduction temperature, good surface morphology and element dispersion, good surface area and pore size, and good interaction between the metals and support as compared to the pristine Ni/Al2O3. Congruently, the addition of various percentages of Ca produces various types of valuable chemicals such as ethanol, 1-propanol, propanal and ethylene glycol at relatively high selectivity percentage, with relatively good sorbitol conversion ranging from 69.09-75.29%. ©

Item Type: Article
Additional Information: The 3rd International Conference on Green Chemical Engineering and Technology (3rdGCET): Materials Science, 07-08 November 2017
Uncontrolled Keywords: Aqueous phase reforming; Calcium; Nickel alumina; Sorbitol
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Prof. Md. Sumaiya Zainal Abidin@ Murad
Date Deposited: 02 Jan 2019 07:38
Last Modified: 02 Jan 2019 07:38
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