Impact of Carbon Properties on Mo2C/Carbon Catalysts for the Hydrodeoxygenation of 4-Methylphenol

Title
Impact of Carbon Properties on Mo2C/Carbon Catalysts for the Hydrodeoxygenation of 4-Methylphenol
Authors
김창수Shida LiuHaiyan WangRobertus Dhimas Dhewangga PutraKevin J. Smith
Keywords
Mo2C/Carbon; Hydrodeoxygenation; 4-Mehtylphenol; activated biochar; carbothermal hydrogen reaction
Issue Date
2019-05
Publisher
Energy & fuels
Citation
VOL 33, NO 16-4514
Abstract
Petcoke and biochar were chemically activated with KOH at 800 and 700 °C, respectively, to obtain microporous activated petcoke (APC) and activated biochar (ABC) with large surface areas (∼2000 m2/g). The O content of the petcoke increased, whereas that of the biochar decreased following activation. Nevertheless, ABC had a higher O content on the surface and in the bulk compared to APC. APC and ABC precursors were wet impregnated with ammonium heptamolybdate, dried, and reduced in H2 to yield Mo2C/APC and Mo2C/ABC catalysts with a nominal loading of 10 wt % Mo. These catalysts were assessed for the hydrodeoxygenation (HDO) of 4-methylphenol. The Mo2C/ABC catalyst had higher activity (per gram Mo) and direct deoxygenation selectivity than the Mo2C/APC because of the higher dispersion of Mo species and higher O content on the ABC surface. The 10%Mo2C/ABC_R650 catalyst prepared at carbothermal hydrogen reduction of 650 °C had the highest activity per gram Mo among all catalysts, whereas turnover frequencies on all catalysts were similar.
URI
http://pubs.kist.re.kr/handle/201004/69462
ISSN
0887-0624
Appears in Collections:
KIST Publication > Article
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