TY - JOUR
T1 - Formulation and catalytic performance of MOF-derived Fe@C/Al composites for high temperature Fischer–Tropsch synthesis
AU - Oar-Arteta, Lide
AU - Valero-Romero, María José
AU - Wezendonk, Tim
AU - Kapteijn, Freek
AU - Gascon, Jorge
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie Grant Agreement No. 704473.
PY - 2018
Y1 - 2018
N2 - High productivity towards C-2-C-4 olefins together with high catalyst stability are key for optimum operation in high temperature Fischer-Tropsch synthesis (HT-FTS). Here, we report the fabrication of Fe@C/Al composites that combine both the outstanding catalytic properties of the Fe-BTC MOF-derived Fe catalyst and the excellent mechanical resistance and textural properties provided by the inorganic AlOOH binder. The addition of AlOOH to Fe-BTC followed by pyrolysis in N-2 atmosphere at 500 degrees C results in composites with a large mesoporosity, a high Fe/Fe3O4 ratio, 10-35 nm average Fe crystallite size and coordinatively unsaturated Al3+ sites. In catalytic terms, the addition of AlOOH binder gives rise to enhanced C-2-C-4 selectivity and catalyst mechanical stability in HT-FTS, but at high Al contents the activity decreases. Altogether, the productivity of these Fe@C/Al composites is well above most known Fe catalysts for this process.
AB - High productivity towards C-2-C-4 olefins together with high catalyst stability are key for optimum operation in high temperature Fischer-Tropsch synthesis (HT-FTS). Here, we report the fabrication of Fe@C/Al composites that combine both the outstanding catalytic properties of the Fe-BTC MOF-derived Fe catalyst and the excellent mechanical resistance and textural properties provided by the inorganic AlOOH binder. The addition of AlOOH to Fe-BTC followed by pyrolysis in N-2 atmosphere at 500 degrees C results in composites with a large mesoporosity, a high Fe/Fe3O4 ratio, 10-35 nm average Fe crystallite size and coordinatively unsaturated Al3+ sites. In catalytic terms, the addition of AlOOH binder gives rise to enhanced C-2-C-4 selectivity and catalyst mechanical stability in HT-FTS, but at high Al contents the activity decreases. Altogether, the productivity of these Fe@C/Al composites is well above most known Fe catalysts for this process.
UR - http://hdl.handle.net/10754/626838
UR - http://pubs.rsc.org/en/Content/ArticleLanding/2018/CY/C7CY01753G#!divAbstract
UR - http://www.scopus.com/inward/record.url?scp=85040192618&partnerID=8YFLogxK
U2 - 10.1039/c7cy01753g
DO - 10.1039/c7cy01753g
M3 - Article
AN - SCOPUS:85040192618
VL - 8
SP - 210
EP - 220
JO - Catalysis Science & Technology
JF - Catalysis Science & Technology
SN - 2044-4753
IS - 1
ER -