Work

Paving the way to transfer hydrogenation of CO2 with bio-derived glycerol over Ni supported zeolite catalysts

Year: 2024

Type: article

Abstract: The CO 2 transfer hydrogenation with bio-glycerol over a Ni-zeolite was systematically studied to produce formic and lactic acids. The alkaline hydrothermal reactions without a catalyst and with Ni-zeolite heterogeneous catalyst were explored, focusing on the effects of base types and concentrations, reaction atmosphere and temperature. In alkaline hydrothermal reactions without catalyst, NaOH demonstrated superior performance at 1 M. A Ni/NaZSM-5 catalyst showed astounding performance giving 9.3 mol-L −1 -g −1 lactic acid and 6.5 mol-L −1 -g −1 formic acid at 250 °C after 2 h. Notably, the zeolite showed resistance to the highly basic conditions of the reaction medium. For the first time, CO 2 conversion in aqueous phase was reported addressing the complexity of CO 2 solubility. A reaction network was proposed including the diverse glycerol transformations not yet studied for this system. Overall, this study sheds light on the understanding of this complex reaction system and the potential of Ni-supported zeolites for sustainable CO 2 utilisation.

Source: Applied Catalysis A General

DOI: 10.1016/j.apcata.2024.119971

Authors: Nicola Rouse, Claudia Fernández Martín, Alan J. McCue, Inês Graça

Institution: University of Aberdeen

Language: English

Topic: Carbon dioxide utilization in catalysis

Subfield: Process Chemistry and Technology

Field: Chemical Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Climate action

Open Access status: hybrid

Estimated APC paid: $3,600