High performance of Mo-promoted Ir/SiO2 catalysts combined with HZSM-5 toward the conversion of cellulose to C5/C6 alkanes. (February 2020)

• Record Type: Journal Article
• Authors: Jin, Lele; Li, Wenzhi; Liu, Qiying; Ma, Longlong; Hu, Chao; Ogunbiyi, Ajibola T.; Wu, Mingwei; Zhang, Qi
• Is Part Of: Bioresource technology. Volume 297(2020)
• Publication Date: 2020-02
• Subjects: Liquid fuel -- Microcrystalline cellulose -- Molybdenum -- Hydrogenolysis; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2019.122492
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: Ir-MoOx /SiO2 combined with HZSM-5 was firstly used to the conversion of cellulose. Ir-MoOx /SiO2 show excellent performance for hydrogenolysis of MCC. A synergistic effect was formed between MoOx species and the Ir particles. 91.7% of C5 /C6 alkanes was obtained under the optimal conditions. Abstract: In this study, the Mo-promoted Ir/SiO2 (Ir-MoOx /SiO2 ) catalysts combined with the zeolite HZSM-5 were used for the direct conversion of microcrystalline cellulose (MCC) to liquid fuel (C5 /C6 alkanes) in n-dodecane/H2 O system. A synergistic effect was formed between the partially reduced MoOx species and the Ir particles, which effectively promoted the catalytic activity of Ir/SiO2 catalyst. When the Mo/Ir molar ratio was 0.5, a high yield of C5 /C6 alkanes (91.7%) was achieved at 210 ℃ for 12 h. In addition, the main component of C5 /C6 alkanes was n-hexane, which was proven to be obtained by the hydrogenolysis of the key intermediate, sorbitol, formed from the hydrolysis and hydrogenation of MCC.