Work

CH4 Oxidation on LaFeO3 Perovskite Catalysts for O2 Removal from Biomethane

Year: 2025

Type: article

Abstract: For the introduction of biomethane into the natural gas grid, the removal of O2 is mandatory. Thus, the conversion of O2 with excess CH4 was investigated using LaFeO3 catalysts. The variation of calcination temperature led to LaFeO3 perovskites with different properties as deduced from extensive physical‐chemical characterization. From coupling the characteristics with the catalytic performance, a structure–activity correlation was derived showing that BET surface area and crystalline structure are determining features. Consequently, the most active LaFeO3 exhibited complete O2 conversion already at 310 °C. Kinetic modeling based on a Langmuir–Hinshelwood mechanism provided suitable operation parameters for a plug flow reactor. The model was validated by predicting experiments.

Source: Chemical Engineering & Technology

DOI: 10.1002/ceat.12012

Authors: Norman Schreiter, Andrej Awgustow, Hendrik Wollmerstädt, Sven Kureti

Institution: TU Bergakademie Freiberg

Language: English

Topic: Catalytic Processes in Materials Science

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

Estimated APC paid: $3,930