Promoting Direct CO<sub>2</sub> Conversion to DME over Zeolite-based Hybrid Catalysts: Fid-Bau Portal

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Promoting Direct CO₂ Conversion to DME over Zeolite-based Hybrid Catalysts

Frusteri, L. / Bonura, G. / Cannilla, C. / Todaro, S. / Giordano, G. / Migliori, M. / Frusteri, F.

The direct hydrogenation of CO₂ into dimethyl-ether (DME) has been studied in presence of zeolite-based hybrid catalysts, prepared through gel-oxalate coprecipitation of copper, zinc and zirconium precursors (in an atomic ratio of 60 : 30 : 10 respectively) in a solution containing different home-made zeolites (i.e., Sil-1, MFI, Y, FER, BEA, MOR), for a final CuZnZr/zeolite weight composition of 1:1. All the samples were properly characterized with different techniques for determining the textural, structural and morphological nature of the catalytic surface. N₂ physisorption highlighted a variation both in the specific surface area and in the pore size distribution from the parent zeolites to the hybrid catalyst. TEM analyses disclosed how the pre-formed zeolite architecture affects the distribution of the oxides on the surface, significantly controlling not only the activity-selectivity pattern under the adopted experimental conditions (T_R, 200–260°C; P_R, 30 bar, GHSV: 8.800 NL/kg_cat/h), but also the catalyst stability during time on-stream.

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Promoting Direct CO₂ Conversion to DME over Zeolite-based Hybrid Catalysts

Frusteri, L. / Bonura, G. / Cannilla, C. / Todaro, S. / Giordano, G. / Migliori, M. / Frusteri, F.

The direct hydrogenation of CO₂ into dimethyl-ether (DME) has been studied in presence of zeolite-based hybrid catalysts, prepared through gel-oxalate coprecipitation of copper, zinc and zirconium precursors (in an atomic ratio of 60 : 30 : 10 respectively) in a solution containing different home-made zeolites (i.e., Sil-1, MFI, Y, FER, BEA, MOR), for a final CuZnZr/zeolite weight composition of 1:1. All the samples were properly characterized with different techniques for determining the textural, structural and morphological nature of the catalytic surface. N₂ physisorption highlighted a variation both in the specific surface area and in the pore size distribution from the parent zeolites to the hybrid catalyst. TEM analyses disclosed how the pre-formed zeolite architecture affects the distribution of the oxides on the surface, significantly controlling not only the activity-selectivity pattern under the adopted experimental conditions (T_R, 200–260°C; P_R, 30 bar, GHSV: 8.800 NL/kg_cat/h), but also the catalyst stability during time on-stream.

Promoting Direct CO₂ Conversion to DME over Zeolite-based Hybrid Catalysts

Frusteri, L. / Bonura, G. / Cannilla, C. / Todaro, S. / Giordano, G. / Migliori, M. / Frusteri, F.

The direct hydrogenation of CO₂ into dimethyl-ether (DME) has been studied in presence of zeolite-based hybrid catalysts, prepared through gel-oxalate coprecipitation of copper, zinc and zirconium precursors (in an atomic ratio of 60 : 30 : 10 respectively) in a solution containing different home-made zeolites (i.e., Sil-1, MFI, Y, FER, BEA, MOR), for a final CuZnZr/zeolite weight composition of 1:1. All the samples were properly characterized with different techniques for determining the textural, structural and morphological nature of the catalytic surface. N₂ physisorption highlighted a variation both in the specific surface area and in the pore size distribution from the parent zeolites to the hybrid catalyst. TEM analyses disclosed how the pre-formed zeolite architecture affects the distribution of the oxides on the surface, significantly controlling not only the activity-selectivity pattern under the adopted experimental conditions (T_R, 200–260°C; P_R, 30 bar, GHSV: 8.800 NL/kg_cat/h), but also the catalyst stability during time on-stream.

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Titel:

Promoting Direct CO₂ Conversion to DME over Zeolite-based Hybrid Catalysts

Weitere Titelangaben:

Pet. Chem.

Beteiligte:

Frusteri, L. (Autor:in) / Bonura, G. (Autor:in) / Cannilla, C. (Autor:in) / Todaro, S. (Autor:in) / Giordano, G. (Autor:in) / Migliori, M. (Autor:in) / Frusteri, F. (Autor:in)

Erschienen in:

Petroleum Chemistry ; 60 ; 508-515

Erscheinungsdatum:

01.04.2020

Format / Umfang:

8 pages

ISSN:

1555-6239 , 0965-5441

DOI:

https://doi.org/10.1134/S0965544120040076

Medientyp:

Aufsatz (Zeitschrift)

Format:

Elektronische Ressource

Sprache:

Englisch

Schlagwörter:

hybrid catalysts , zeolites , CO<sub>2</sub> conversion , DME production Chemistry , Industrial Chemistry/Chemical Engineering , Chemistry and Materials Science

Lizenzbestimmungen:

http://creativecommons.org/licenses/by/4.0/

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