Pure Ni-Based and Trimetallic Ni-Co-Fe Catalysts for the Dry Reforming of Methane: Effect of K Promoter and the Calcination Temperature

Khoshroo, Ghazaleh and Sápi, András and Szenti, Imre and Efremova, Anastasiia and Bali, Henrik and Ábrahámné B., Kornélia and Erdőhelyi, András and Kukovecz, Ákos and Kónya, Zoltán (2023) Pure Ni-Based and Trimetallic Ni-Co-Fe Catalysts for the Dry Reforming of Methane: Effect of K Promoter and the Calcination Temperature. CATALYSIS LETTERS, 153 (9). pp. 2755-2762. ISSN 1011-372X

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Abstract

This work investigates the effect of the Potassium promoter and the calcination temperature on the catalytic activity in the dry reforming of methane reaction and compares the performance of the Ni, Co, Fe–Al2O3 trimetallic catalysts with the reference Ni–Al2O3. Although higher activity was achieved with the Ni–Al2O3, trimetallic catalysts resulted in a more favorable CO/H2 ratio and considerably better coke resistance. Higher calcination temperature led to the increase in coke formation which caused the sintering of the catalysts. Promoting samples with 0.5%K in order to improve the coke formation resistance, reduced the catalytic activity.

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