Studies of acidic and basic catalysts for the CO2 methanation reaction: an operando study

• Grant number: 23/03909-1
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: April 01, 2023
• End date: March 31, 2025
• Field of knowledge: Engineering - Chemical Engineering - Chemical Technology
• Principal Investigator: Luiz Gustavo Possato
• Grantee: Gabriel Ribeiro da Silva
• Host Institution: Faculdade de Ciências (FC). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil
• Associated research grant: 21/05246-4 - In situ and operando studies of heterogeneous catalysts for CO2 conversion, AP.JP

Abstract

This project will evaluate the effects of acidic and basic catalysts on the carbon dioxide methanation reaction, especially with Al2O3 and MgO supports. The catalysts will be synthesized using the sol-gel method. The properties of the catalysts will be characterized and evaluated using techniques such as X-ray diffraction; nitrogen physisorption; scanning and transmission electron microscopy, and CO2 and NH3 chemisorption. Spectroscopic studies in situ and in operation may elucidate the formation of carbonaceous compounds and possible sintering processes. The catalysts will be used in the CO2 methanation reaction because of the increase in methane selectivity that will be observed throughout the reaction. The catalytic activity will be monitored through in situ Raman spectroscopy under controlled and operating temperature and pressure conditions, aiming to understand the mechanisms and how they work during the CO2 methanation reaction. With the collected data, it will be observed and the best performance in search of the increase of methane selectivity.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SILVA, GABRIEL R.; ASSIS, MATHEUS S.; POSSATO, LUIZ G.. Synthesis of MgO Using the Sol-gel Method: Correlation Between CTAB Surfactant Concentration and MgO Properties. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 27, p. 8-pg., 2024-01-01. (23/04143-2, 21/02152-9, 23/03909-1, 21/05246-4)