On a Response Surface Analysis: Hydrodeoxygenation of Phenol over a CoMoS-Based Active Phase
This work aims at assessing the hydrodeoxygenation (HDO) of phenol over a promising catalytic material: a CoMoS-based active phase with a Co/(Co + Mo) = 0.2, supported on a promising mixed oxide, Al<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub> (Al/Ti = 2). Particularl...
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MDPI AG
2022-09-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/12/10/1139 |
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| author | Itzayana Pinzón-Ramos Carlos O. Castillo-Araiza Jesús Andrés Tavizón-Pozos José Antonio de los Reyes |
| author_facet | Itzayana Pinzón-Ramos Carlos O. Castillo-Araiza Jesús Andrés Tavizón-Pozos José Antonio de los Reyes |
| author_sort | Itzayana Pinzón-Ramos |
| collection | DOAJ |
| description | This work aims at assessing the hydrodeoxygenation (HDO) of phenol over a promising catalytic material: a CoMoS-based active phase with a Co/(Co + Mo) = 0.2, supported on a promising mixed oxide, Al<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub> (Al/Ti = 2). Particularly, to optimize the catalytic and kinetic performance of CoMoS/Al<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub>, a response surface methodology (RSM) is carried out by following a Box–Behnken experimental design. The response variables are the initial reaction rate and the reaction selectivity, determined via a proper contribution analysis (𝜑) of both the direct hydrodeoxygenation (DDO) and the hydrogenation (HYD). At the same time, the operating conditions used as factors are the reaction temperature (280–360 °C), the total pressure (3–5.5 MPa), and the Mo loading (10–15 wt.%). The activity and selectivity are correlated to the catalysts’ physicochemical properties determined by XRD, UV-Vis DRS, TPR, and Raman Spectroscopy. Regarding the CoMo-based active phase, a Mo loading of 12.5 wt.% leads to the optimal reaction performance, which is associated with the lowest (Co + Mo)<sup>oh</sup>/(Co + Mo)<sup>th</sup> ratio. Concerning the operating conditions, a temperature of 360 °C and a total pressure of 5.5 MPa give rise to the optimal initial reaction rates, in which the DDO (𝜑 = 65%) is selectively favored over HYD (𝜑 = 35%). |
| first_indexed | 2024-03-09T20:29:47Z |
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| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-09T20:29:47Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-134d87bfb0584f66afa550662a8ce4412023-11-23T23:24:14ZengMDPI AGCatalysts2073-43442022-09-011210113910.3390/catal12101139On a Response Surface Analysis: Hydrodeoxygenation of Phenol over a CoMoS-Based Active PhaseItzayana Pinzón-Ramos0Carlos O. Castillo-Araiza1Jesús Andrés Tavizón-Pozos2José Antonio de los Reyes3Laboratory of Environmental Catalysis, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, Col. Vicentina, Ciudad de Mexico 09340, MexicoLaboratory of Catalytic Reactor Engineering Applied to Chemical and Biological Systems, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, Col. Vicentina, Ciudad de Mexico 09340, MexicoInvestigadoras e Investigadores por México del CONACyT, Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Carr. Pachuca-Tulancingo Km. 4.5, C.P., Pachuca 42184, MexicoLaboratory of Environmental Catalysis, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, Col. Vicentina, Ciudad de Mexico 09340, MexicoThis work aims at assessing the hydrodeoxygenation (HDO) of phenol over a promising catalytic material: a CoMoS-based active phase with a Co/(Co + Mo) = 0.2, supported on a promising mixed oxide, Al<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub> (Al/Ti = 2). Particularly, to optimize the catalytic and kinetic performance of CoMoS/Al<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub>, a response surface methodology (RSM) is carried out by following a Box–Behnken experimental design. The response variables are the initial reaction rate and the reaction selectivity, determined via a proper contribution analysis (𝜑) of both the direct hydrodeoxygenation (DDO) and the hydrogenation (HYD). At the same time, the operating conditions used as factors are the reaction temperature (280–360 °C), the total pressure (3–5.5 MPa), and the Mo loading (10–15 wt.%). The activity and selectivity are correlated to the catalysts’ physicochemical properties determined by XRD, UV-Vis DRS, TPR, and Raman Spectroscopy. Regarding the CoMo-based active phase, a Mo loading of 12.5 wt.% leads to the optimal reaction performance, which is associated with the lowest (Co + Mo)<sup>oh</sup>/(Co + Mo)<sup>th</sup> ratio. Concerning the operating conditions, a temperature of 360 °C and a total pressure of 5.5 MPa give rise to the optimal initial reaction rates, in which the DDO (𝜑 = 65%) is selectively favored over HYD (𝜑 = 35%).https://www.mdpi.com/2073-4344/12/10/1139hydrodeoxygenationCoMo-based active phasephenoloptimizationRSM |
| spellingShingle | Itzayana Pinzón-Ramos Carlos O. Castillo-Araiza Jesús Andrés Tavizón-Pozos José Antonio de los Reyes On a Response Surface Analysis: Hydrodeoxygenation of Phenol over a CoMoS-Based Active Phase Catalysts hydrodeoxygenation CoMo-based active phase phenol optimization RSM |
| title | On a Response Surface Analysis: Hydrodeoxygenation of Phenol over a CoMoS-Based Active Phase |
| title_full | On a Response Surface Analysis: Hydrodeoxygenation of Phenol over a CoMoS-Based Active Phase |
| title_fullStr | On a Response Surface Analysis: Hydrodeoxygenation of Phenol over a CoMoS-Based Active Phase |
| title_full_unstemmed | On a Response Surface Analysis: Hydrodeoxygenation of Phenol over a CoMoS-Based Active Phase |
| title_short | On a Response Surface Analysis: Hydrodeoxygenation of Phenol over a CoMoS-Based Active Phase |
| title_sort | on a response surface analysis hydrodeoxygenation of phenol over a comos based active phase |
| topic | hydrodeoxygenation CoMo-based active phase phenol optimization RSM |
| url | https://www.mdpi.com/2073-4344/12/10/1139 |
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