Scientific basis for process and catalyst design in the selective oxidation of methane to formaldehyde.
The mechanism and kinetics of the gas-phase selective oxidation of methane to formaldehyde (MPO) are revised in the general context of catalytic oxidations. In agreement with ab initio calculations of the energy barrier for the activation of methane on transition metal oxide complexes, a formal Langmuir-Hinshelwood kinetic model is proposed which accounts for the "steady-state" conditions and activity-selectivity pattern of MPO catalysts, providing an original support to process design and catalyst development.
Arena
Francesco
F
Dipartimento di Chimica Industriale e Ingegneria dei Materiali, Università degli Studi di Messina, Salita Sperone 31, I-98166 S. Agata, Italy. Francesco.Arena@unime.it
Parmaliana
Adolfo
A
D002384:Catalysis; D015195:Drug Design; D005290:Ferric Compounds / Q000737:chemistry; D005557:Formaldehyde / Q000737:chemistry*; D007700:Kinetics; D008697:Methane / Q000737:chemistry*; D008956:Models, Chemical; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry; D013997:Time Factors
D005290:Ferric Compounds; D005557:Formaldehyde; D012822:Silicon Dioxide; D008697:Methane; D010100:Oxygen