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What Is the Effect of Promoter Loading on Alkalized Bimetallic Co–Mo Catalyst for Higher Alcohols Synthesis from Syngas?

  • CATALYSIS IN CHEMICAL AND PETROCHEMICAL INDUSTRY
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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 adsorption-desorption, 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.

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Authors and Affiliations

  1. School of Chemistry, College of Science, University of Tehran, 1417466191, Tehran, Iran

    Reza Gholami Moqadam, Ahmad Tavasoli & Mohammad Salimi

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  1. Reza Gholami Moqadam
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  2. Ahmad Tavasoli
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  3. Mohammad Salimi
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Correspondence to Reza Gholami Moqadam, Ahmad Tavasoli or Mohammad Salimi.

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Reza Gholami Moqadam, Tavasoli, A. & Salimi, M. What Is the Effect of Promoter Loading on Alkalized Bimetallic Co–Mo Catalyst for Higher Alcohols Synthesis from Syngas?. Catal. Ind. 11, 208–215 (2019). https://doi.org/10.1134/S2070050419030085

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  • DOI: https://doi.org/10.1134/S2070050419030085

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