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What is the Effect of Promoter Loading on Alkalized Bimetallic Co-Mo Catalyst for Higher Alcohols Synthesis from Syngas?
https://doi.org/10.18412/1816-0387-2019-2-86-94
Abstract
Manganese and nickel co-modified K/Co/MoS2 catalysts supported on graphene were prepared by incipient wetness impregnation method for application in higher alcohol synthesis (HAS). All catalysts were characterized by X-ray diffraction (XRD), nitrogen adsorptiondesorption, temperature-programmed reduction (TPR) and transmission electron microscopy (TEM). The effect of promoters, as well as supports on higher alcohol synthesis production from syngas, was investigated in a fixed bed reactor. The process was performed with an molar ratio H2 : CO = 1 : 1, operating pressure and temperature of 4 MPa and 330 °C, respectively, and gas hourly space velocity (GHSV) 3.84 m3 (STP)/(kgcat.·h) as reaction conditions (STP – standard temperature and pressure). Results originated from practical works showed that the addition of Ni to the graphene-based catalyst increased HAS production and decreased methanol formation. The total alcohols space-time yield (STY) and alcohol selectivity on Ni/Mn/Co/Mo/K/graphene catalyst reached a maximum at 0.41 galc./(gcat.·h) and 63.51 %, respectively, which is higher than the same composition over alumina supported catalyst.
About the Authors
R. G. Moqadam
School of Chemistry, College of Science, University of Tehran
Islamic Republic of Iran
Islamic Republic of Iran
A. Tavasoli
School of Chemistry, College of Science, University of Tehran
Islamic Republic of Iran
Islamic Republic of Iran
M. Salimi
School of Chemistry, College of Science, University of Tehran
Islamic Republic of Iran
Islamic Republic of Iran
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Review
For citations:
Moqadam R.G., Tavasoli A., Salimi M. What is the Effect of Promoter Loading on Alkalized Bimetallic Co-Mo Catalyst for Higher Alcohols Synthesis from Syngas? Kataliz v promyshlennosti. 2019;19(2):86-94. https://doi.org/10.18412/1816-0387-2019-2-86-94
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