Work

High Selectivity for Sustainable Aviation Fuel with Low CO 2 Emissions Using SBA-16-Supported Iron Catalysts in Fischer–Tropsch Synthesis

Year: 2025

Type: article

Abstract: This study investigates innovative SBA-16-supported iron (Fe) catalysts for the selective production of sustainable aviation fuel (SAF) via Fischer–Tropsch synthesis. Iron loadings of 10, 20, and 30 wt % were evaluated, with potassium (K) and manganese (Mn) as promoters in the CO hydrogenation reaction. The catalyst with 20 wt % Fe exhibited reduced metal–support interaction and prevented pore blockage, enhancing catalytic performance. Notably, the addition of 1 wt % Mn to the 20Fe/SBA-16 catalyst significantly increased selectivity for sustainable aviation fuel (C 8 –C 18 hydrocarbons) from 45% to 55%, while reducing CO 2 formation from 8% to 4% and CH 4 production from 11% to 8%. This improvement was attributed to the enhanced formation of Hägg carbide, a highly active site for Fischer–Tropsch synthesis. In contrast, 1 wt % K promotion intensified the water–gas shift reaction, increasing CO 2 formation from 8% to 14%. The optimized 1Mn-20Fe/SBA-16 catalyst demonstrated outstanding performance for SAF production with lower carbonaceous byproducts (e.g., CO 2 and CH 4 ). These findings underscore the potential of SBA-16-supported catalysts in advancing sustainable biofuel technologies.

Source: The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.5c05491

Authors: Diogo de Sá da Silva, Hídila Souza Teixeira da Silva, Gabriel Garcia Silva, Dalber Ruben Sanchez Candela, Ricardo Reis Soares

Institutions: Universidade Federal de Uberlândia, Universidade Federal Fluminense

Language: English

Topic: Catalysts for Methane Reforming

Subfield: Catalysis

Field: Chemical Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Climate action

Open Access status: hybrid

Estimated APC paid: $4,500