The methanation of CO2 is of great interest in power-to-gas systems and contributes to the mitigation of climate change through carbon dioxide capture and the subsequent production of high-added-value products. This study investigated CO2 methanation with three Ni catalysts supported on Al2O3 and ZrO2, which were simulated using a mathematical model of a packed bed reactor designed based on their chemical kinetics reported in the literature. The simulated reactive system was fed with syngas obtained from residual coffee pulp obtained after a solvent phytochemical extraction process under several gasification conditions

Catalytic hydrodeoxygenation (HDO) is a critical technique for upgrading biomass derivatives to deoxygenated fuels or other high-value compounds. Phenol, guaiacol, anisole, p-cresol, m-cresol and vanillin are all monomeric phenolics produced from lignin. Guaiacol is often utilised as a model lignin compound to deduce mechanistic information about the bio-oil upgrading process.

The effect of O-vacancies on intermediates stability and electron delocalization over MgO modified Ru/ZrO2: Spectroscopic insights during CO2 methanationAbstract O-vacancies are defects commonly correlated with the production of CH4 by CO2 hydrogenation on...

Unravelling the CO2 capture and conversion mechanism of a NiRu–Na2O switchable dual-function material in various CO2 utilisation reactionsAbstractTime-resolved operando DRIFTS-MS was performed to elucidate the CO2 capture and conversion mechanisms of a NiRuNa/CeAl...

Modelling approaches for biomass gasifiers: A comprehensive overviewAbstractBiomass resources have the potential to become a viable renewable technology and play a key role within the future renewable energy paradigm. Since CO2 generated in bio-energy production is...

Ni-Phosphide catalysts as versatile systems for gas-phase CO2 conversion:Impact of the support and evidences of structure-sensitivityAbstractWe report for the first time the support dependent activity and selectivity of Ni-rich nickel phosphide catalysts for CO2...

Recent advances on gas-phase CO2 conversion:Catalysis design and chemical processes to close thecarbon cycleAbstractChemical CO2 recycling in the gas phase constitutes a straightforward approach for effective CO2 conversion to added-value products like syngas or...

Design of Full-Temperature-Range RWGS Catalysts: Impact of AlkaliPromoters on Ni/CeO2AbstractReverse water gas shift (RWGS) competes with methanation as a direct pathway in the CO2 recycling route, with methanation being a dominant process in the low-temperature...

Effect of the Carbon Support and Conditions on the Carbothermal Synthesis of Cu-Molybdenum Carbide and Its Application on CO2 Hydrogenation to MethanolAbstractThe synthesis of methanol by carbon dioxide hydrogenation has been studied using coppermolybdenum carbides...

Electrocatalytic CO2 conversion to C2 products: Catalysts design, market perspectives and techno-economic aspectsAbstractThe energy crisis caused by the incessant growth in global energy demand joint to its associated greenhouse emissions motivates the urgent need...