Development of Ni-Based Catalysts Derived from Hydrotalcite-Like Compounds Precursors for Synthesis Gas Production via Methane or Ethanol Reforming

Abstract

As a favorably clean fuel, syngas (synthesis gas) production has been the focus of concern in past decades. Substantial literatures reported the syngas production by various catalytic reforming reactions particularly in methane or ethanol reforming. Among the developed catalysts in these reforming processes, Ni-based catalysts from hydrotalcite-like compounds (HTLcs) precursors have drawn considerable attention for their preferable structural traits. This review covers the recent literature reporting syngas production with Ni-based catalysts from HTLc precursors via methane or ethanol reforming. The discussion was initiated with catalyst preparation (including conventional and novel means), followed by subsequent thermal treatment processes, then composition design and the addition of promoters in these catalysts. As Ni-based catalysts have thermodynamic potential to deactivate because of carbon deposition or metal sintering, measures for dealing with these problems were finally summarized. To obtain optimal catalytic performances and resultantly better syngas production, based on analyzing the achievements of the references, some perspectives were finally proposed.

Hydrogen Production Performances via Steam Reforming over Hydrotalcite Derived Catalyst: A Sustainable Energy Production Review

“…The application of 2% of this catalyst showed 96% -97% product yields at 200˚C. Zeng et al, [70] found 90.5% ester conversion from 1.5% Mg/Al catalyst containing molar ratio 3 at 65˚C for four hours while Liu et al, [19] achieved 93% conversion at 120˚C for eight (8) hours using Mg/Al catalyst having molar ratio 2.3 but found no leaching. Sikander U. et al, [71] successfully tailored Mg-Ni-Al catalyst to understand the effect of Ni metal to produce hydrogen through thermal decomposition of CH 4 .…”

“…The process involves the selection of proper feed materials, good catalysts, optimum reaction conditions, etc. Here a suitable catalyst choice for effective fuel processing through thermo-catalytic reforming techniques or reactions from different hydrocarbons or biomass is must [7] [8]. Reaction conditions of these thermo-catalytic methods play a vital role in the final product.…”

CoMn Catalysts Derived from Hydrotalcite-Like Precursors for Direct Conversion of Syngas to Fuel Range Hydrocarbons

“…The reduction of HTCs can be eminently suitable for the formation of highly dispersed and well-supported metallic particles [17][18][19][20][21][24][25][26]. Hydrotalcite-derived mixed oxides have been used as a catalyst in different catalytic reactions, such as steam reforming of ethanol [20,27,28], CO 2 hydrogenation to methanol [29,30], CO 2 reforming of methane for syngas production [31][32][33], formation of alcohols from syngas [19,34,35], and hydrocarbon production through FT reaction [36]. In the present study, CoMn catalysts derived from hydrotalcite-like precursors, with a Co/Mn molar ratio of 2, were synthesized using different preparation methods, and their catalytic activities in the FT reaction were evaluated.…”

Hydrogen Production from Cyclic Chemical Looping Steam Methane Reforming over Yttrium Promoted Ni/SBA-16 Oxygen Carrier

“…Fast depletion of conventional fossil fuel sources and increasing concerns over the global warming phenomenon due to the emissions of greenhouse gases especially carbon dioxide, initiated various researchers for the production of clean energies [1][2][3][4][5][6]. H 2 has been widely identified as a favorable clean energy carrier because of its non-polluting nature and high specific energy density (120.7 kJ/g) [7][8][9].…”