On the dynamics of the catalytic surface of a bimetallic mixed-oxide formulation during the oxidative dehydrogenation of ethane

Light olefin synthesis from a diversity of renewable and fossil feedstocks: state-of the-art and outlook

“…A less intensive oxygen treatment of the catalyst surface, achieved both by catalyst design and by reducing the oxygen concentration, promotes the dominance of nucleophilic sites. 133–136 This phenomenon is independent of the catalyst structure and works for different systems.…”

“…142,143 The careful design and modification of the NiO-based systems by tuning the surface oxygen concentration, addition of Sn, Ti and Nb oxides, or simple variation of NiO concentration can also help to achieve a higher olefin selectivity and a higher productivity. 135,136,144–147 Finally, a technico-economic analysis of the ethane ODH indicates its potential for industrial implementation, competitive with the SC process. 148…”

Toward the Industrial Exploitation of the Oxidative Dehydrogenation of Ethane over a NiO-SnO2-Based Catalyst: Regime, Parametric Sensitivity, and Optimization Analysis

“…SnO 2 -NiO presents several advantages ,,, over MoVNbTeO, including its easy, quick, less energy-demanding, and reproducible synthesis. Moreover, the SnO 2 -NiO-based material produces only a single side product (CO 2 ) under a wide range of operating conditions, ,, even during dynamic catalytic evaluation in the absence of oxygen, , which makes this mixed oxide an attractive catalyst from an engineering perspective.…”

“…Ethane oxidative dehydrogenation (ODH-C 2 ) is nowadays a recognized alternative reaction concept for producing ethylene from ethane . Several publications, − including those from our research group, − have proven the competitiveness of ODH-C 2 in comparison with the traditional ethylene production process, i.e., naphtha steam cracking. Despite that ODH-C 2 overcomes the main drawbacks of steam cracking, such as the high energy consumption and CO x production, two challenges remain for its industrial application: first, the development of a highly active and selective catalyst, and second, the design of an industrial reactor where the catalyst can reach its best performance.…”

“… ,,,− Nevertheless, to the best of our knowledge, the development of a comprehensive model by following detailed engineering simulations is still missing for this reactor technology. Moreover, although the promising catalytic performance ,− of the SnO 2 -NiO-based catalyst has been identified at the laboratory scale, a model for describing its industrial-scale performance has not been reported yet.…”