Ni–Co bimetallic catalyst for hydrogen production in sewage treatment plants: Biogas reforming and tars removal

Comparative Studies of Non‐noble Metal Modified Mesoporous M‐Ni‐CaO‐ZrO2 (M = Fe, Co, Cu) Catalysts for Simulated Biogas Dry Reforming

“…Many authors claimed the free NiO particles always had a poor catalytic activity and were vital for the heavy carbon deposition, [31,36] while the well-dispersed nickel site with strong metal support interaction could ensure the high activity and stability of catalyst. [2,26] As depicted in Figure 3, due to the existence of large amount of free nickel site, Cu-NCZ sample showed the lowest initial activity and deactivated continuously. On the contrary, Fe-NCZ sample demonstrated no reduction peak under 400 ℃, which suggested that most of the metal site had the metal support interaction to some extent, and in turn the Fe-NCZ catalyst could display a higher initial reactant conversions during biogas dry reforming.…”

“…Although the main component of biogas is methane (50%-70%), it always contains a large portion of carbon dioxide (30%-50%) which decreases the energy efficiency and produces ignition problems in their direct utilization in gas or fuel engines. [1,2] However, from the view point of biogas reforming, high CO 2 concentration (up to 50%) makes it a perfect choice to be used as feedstock via the dry reforming process (CH 4 ＋CO 2 → 2H 2 ＋2CO, ΔH 298 ＝247.3 kJ•mol 1 ) to suitable syngas (H 2 and CO) that can be used for hydrogen production, [3] solid oxide fuel cell [4] or for hydrocarbons synthesis via Fischer-Tropsch process. [5] The development of suitable metal catalyst is considered to be one of the main problems need to be solved.…”

Evaluation of a Catalyst Durability in Absence and Presence of Toluene Impurity: Case of the Material Co2Ni2Mg2Al2 Mixed Oxide Prepared by Hydrotalcite Route in Methane Dry Reforming to Produce Energy

“…Since the carbon balance is higher in the presence of toluene than in its absence (Figure 11), it is deduced that the higher amount of carbon on Co 2 Ni 2 Mg 2 Al 2 800 T180 is due to toluene cracking (reaction (g)). Furthermore, some authors who studied the effect of hydrocarbons on methane reforming attributed the decrease of the catalysts’ efficiency to the adsorption of contaminants on their active sites, thus modifying their catalytic properties and accelerating the carbon deposition [13,52]. Other authors have added to these causes the sintering of the metal particles [33,45] leading to a progressive catalyst deactivation.…”

Electricity Generation from Biogas of Cassava using Cattle Manure as inoculum: An Assessment of Potential in the Quilombola Community (Brazil)

“…The parameter ɳ varies according to the power generation plants. The ɳ value is considered from 35 to 42% and 25% in the power plants with large turbine system and small generators, respectively (BENITO et al, 2015). In this study, the ɳ value was assumed as 25%, because the capacity of the biodigester used is small.…”