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Issue 15, 2018
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Bio-MCM-41: a high-performance catalyst support derived from pyrolytic biochar

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Abstract

Silica-based materials can be extracted efficiently from biochar prepared by biomass pyrolysis. A bio-mesoporous material was prepared directly after the extraction of silica from biochar using a sequential stepwise method, in which biochar was obtained as the by-product from the pyrolysis of rice husk. This mesoporous material (designated Bio-MCM-41) had a high Brunauer–Emmett–Teller (BET) surface area of 782 m2 g−1. To test the feasibility of Bio-MCM-41 as a catalyst support, Bio-MCM-41-supported Cu-based catalyst (Cu/Bio-MCM-41) was prepared for use in the hydrogenation of methyl acetate (MA) for ethanol production. The probe reaction test of MA hydrogenation showed that the Cu/Bio-MCM-41 catalyst had superior or comparable catalytic performance to a similar catalyst (Cu/Com-MCM-41) prepared from commercial Mobil composition of matter 41 (MCM-41). A high MA conversion of 91.5% with an ethanol selectivity of 96.4% was achieved under the optimum reaction conditions (513 K, 2 MPa, n(H2)/n(MA) = 60, liquid hourly space velocity = 0.8 h−1). In addition, the alkali-rich char residue was activated directly to obtain activated carbon (AC) with a BET surface area of 442 m2 g−1.

Graphical abstract: Bio-MCM-41: a high-performance catalyst support derived from pyrolytic biochar

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Article information


Submitted
05 Mar 2018
Accepted
26 Apr 2018
First published
26 Apr 2018

New J. Chem., 2018,42, 12394-12402
Article type
Paper

Bio-MCM-41: a high-performance catalyst support derived from pyrolytic biochar

Y. Liu, L. Zhu, S. Wang and S. Fukuda, New J. Chem., 2018, 42, 12394 DOI: 10.1039/C8NJ01063C

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