Coking can increase the performance of Keggin H3PW12O40 in the gas phase methanol-​to-​DME reaction

Josefine Schnee, Luca Fusaro, Carmela Aprile, Eric Gaigneaux

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

The gas phase dehydration of methanol to dimethylether (DME) nowadays attracts more and more interest as DME is one of the most promising renewable fuels for the future. As catalysts, many studies now use heteropolyacids (HPAs) which have an exceptionally high Bronsted acidity. In the present work, we show that, in contrast to what is generally admitted, H3PW12O40 (most widely used Keggin-​type HPA) is not necessarily less active in the methanol reaction when it is covered with coke (carbonaceous deposits)​. Indeed, in conditions where otherwise only the surface of H3PW12O40 particles is active, the bulk of coked H3PW12O40 might get addnl. activated, what leads to a higher methanol conversion than achieved with the non-​coked ref. sample.
langueAnglais
journalCatalysis Science & Technology
Les DOIs
étatPublié - 2017

Empreinte digitale

Coking
Methanol
Gases
Dehydration
Acidity
Coke
Deposits
Catalysts

Citer ceci

@article{2b7321ac56df4a34a75fd460970513f2,
title = "Coking can increase the performance of Keggin H3PW12O40 in the gas phase methanol-​to-​DME reaction",
abstract = "The gas phase dehydration of methanol to dimethylether (DME) nowadays attracts more and more interest as DME is one of the most promising renewable fuels for the future. As catalysts, many studies now use heteropolyacids (HPAs) which have an exceptionally high Bronsted acidity. In the present work, we show that, in contrast to what is generally admitted, H3PW12O40 (most widely used Keggin-​type HPA) is not necessarily less active in the methanol reaction when it is covered with coke (carbonaceous deposits)​. Indeed, in conditions where otherwise only the surface of H3PW12O40 particles is active, the bulk of coked H3PW12O40 might get addnl. activated, what leads to a higher methanol conversion than achieved with the non-​coked ref. sample.",
author = "Josefine Schnee and Luca Fusaro and Carmela Aprile and Eric Gaigneaux",
year = "2017",
doi = "10.1039/C7CY01097D",
language = "English",
journal = "Catalysis Science & Technology",
issn = "2044-4753",
publisher = "Royal Society of Chemistry",

}

Coking can increase the performance of Keggin H3PW12O40 in the gas phase methanol-​to-​DME reaction. / Schnee, Josefine; Fusaro, Luca; Aprile, Carmela; Gaigneaux, Eric.

Dans: Catalysis Science & Technology , 2017.

Résultats de recherche: Contribution à un journal/une revueArticle

TY - JOUR

T1 - Coking can increase the performance of Keggin H3PW12O40 in the gas phase methanol-​to-​DME reaction

AU - Schnee, Josefine

AU - Fusaro, Luca

AU - Aprile, Carmela

AU - Gaigneaux, Eric

PY - 2017

Y1 - 2017

N2 - The gas phase dehydration of methanol to dimethylether (DME) nowadays attracts more and more interest as DME is one of the most promising renewable fuels for the future. As catalysts, many studies now use heteropolyacids (HPAs) which have an exceptionally high Bronsted acidity. In the present work, we show that, in contrast to what is generally admitted, H3PW12O40 (most widely used Keggin-​type HPA) is not necessarily less active in the methanol reaction when it is covered with coke (carbonaceous deposits)​. Indeed, in conditions where otherwise only the surface of H3PW12O40 particles is active, the bulk of coked H3PW12O40 might get addnl. activated, what leads to a higher methanol conversion than achieved with the non-​coked ref. sample.

AB - The gas phase dehydration of methanol to dimethylether (DME) nowadays attracts more and more interest as DME is one of the most promising renewable fuels for the future. As catalysts, many studies now use heteropolyacids (HPAs) which have an exceptionally high Bronsted acidity. In the present work, we show that, in contrast to what is generally admitted, H3PW12O40 (most widely used Keggin-​type HPA) is not necessarily less active in the methanol reaction when it is covered with coke (carbonaceous deposits)​. Indeed, in conditions where otherwise only the surface of H3PW12O40 particles is active, the bulk of coked H3PW12O40 might get addnl. activated, what leads to a higher methanol conversion than achieved with the non-​coked ref. sample.

U2 - 10.1039/C7CY01097D

DO - 10.1039/C7CY01097D

M3 - Article

JO - Catalysis Science & Technology

T2 - Catalysis Science & Technology

JF - Catalysis Science & Technology

SN - 2044-4753

ER -