dc.creator | Fornero, Esteban Luis | |
dc.creator | Chiavassa, Dante Luis | |
dc.creator | Bonivardi, Adrian Lionel | |
dc.creator | Baltanas, Miguel Angel | |
dc.date.accessioned | 2017-12-22T11:04:33Z | |
dc.date.accessioned | 2018-11-06T16:17:41Z | |
dc.date.available | 2017-12-22T11:04:33Z | |
dc.date.available | 2018-11-06T16:17:41Z | |
dc.date.created | 2017-12-22T11:04:33Z | |
dc.date.issued | 2017-12 | |
dc.identifier | Baltanas, Miguel Angel; Bonivardi, Adrian Lionel; Chiavassa, Dante Luis; Fornero, Esteban Luis; Transient analysis of the reverse water gas shift reaction on Cu/ZrO2 and Ga2O3/Cu/ZrO2 catalysts; Elsevier; Journal of CO2 Utilization; 22; 12-2017; 289-298 | |
dc.identifier | 2212-9820 | |
dc.identifier | http://hdl.handle.net/11336/31346 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1906663 | |
dc.description.abstract | The performance of two copper-based catalysts, Cu/ZrO2 and Ga2O3/Cu/ZrO2, in regards the reverse water gas shift (RWGS) reaction as compared with their reaction rates for the methanol synthesis reaction (RCH3OH) was studied using H2/CO2 mixtures at 1.6 and 0.1 MPa, at 498 K. The reactivity studies were carried out using a Carberry-type microcatalytic reactor operated in the batch (transient) mode after H2 prereduction at 523 K (2 h). Measurements of the catalytic activity were also made using D2/CO2 mixtures (0.1 MPa, 498 K) to assess isotope effects. For Cu/ZrO2, the initial RWGS reaction rate using D2 instead of H2 was slightly higher whereas such rate was about equal for the ternary catalyst. Kinetic rate expressions obtained from the Langmuir-Hinshelwood-Hougen-Watson formalism were used to model and analyze the experimental results and the reaction mechanism(s) of the RWGS on these catalysts. Congruence was found between the experimental results and a reaction mechanism where (predominantly) CO2 adsorbs dissociatively on the Cu particles (rate-determining step). The reduction of (ad)oxygen and surface hydroxyls follow afterwards. | |
dc.language | eng | |
dc.publisher | Elsevier | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jcou.2017.06.002 | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/restrictedAccess | |
dc.subject | ASSOCIATIVE MECHANISMS | |
dc.subject | CO2 HYDROGENATION | |
dc.subject | METHANOL SYNTHESIS | |
dc.subject | REDOX MECHANISM | |
dc.subject | SUPPORTED COPPER | |
dc.subject | WATER GAS SHIFT | |
dc.title | Transient analysis of the reverse water gas shift reaction on Cu/ZrO2 and Ga2O3/Cu/ZrO2 catalysts | |
dc.type | Artículos de revistas | |
dc.type | Artículos de revistas | |
dc.type | Artículos de revistas | |