Deactivation of Sn-Beta during carbohydrate conversion

William N.P. van der Graaff; Christiaan H.L. Tempelman; Frank C. Hendriks; Javier Ruiz-Martinez; Sara Bals; Bert M. Weckhuysen; Evgeny A. Pidko; Emiel J.M. Hensen

doi:10.1016/j.apcata.2018.07.023

Deactivation of Sn-Beta during carbohydrate conversion

William N.P. van der Graaff, Christiaan H.L. Tempelman, Frank C. Hendriks, Javier Ruiz-Martinez, Sara Bals, Bert M. Weckhuysen, Evgeny A. Pidko, Emiel J.M. Hensen

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29 Scopus citations

Abstract

The deactivation of Sn-Beta zeolite catalyst during retro-aldolization and isomerization of glucose is investigated. Confocal fluorescence microscopy reveals that retro-aldolization of glucose in CH3OH at 160 °C is accompanied with the build-up of insoluble oligomeric deposits in the micropores, resulting in a rapid catalyst deactivation. These deposits accumulate predominantly in the outer regions of the zeolite crystals, which points to mass transport limitations. Glucose isomerization in water is not only accompanied by the formation of insoluble deposits in the micropores, but also by the structural degradation of the zeolite due to desilication and destannation. Enhanced and sustained catalytic performance can be achieved by using ethanol/water mixtures as the reaction solvent instead of water.

Original language	English (US)
Journal	Applied Catalysis A: General
Volume	564
DOIs	https://doi.org/10.1016/j.apcata.2018.07.023
State	Published - Aug 25 2018
Externally published	Yes

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title = "Deactivation of Sn-Beta during carbohydrate conversion",

abstract = "The deactivation of Sn-Beta zeolite catalyst during retro-aldolization and isomerization of glucose is investigated. Confocal fluorescence microscopy reveals that retro-aldolization of glucose in CH3OH at 160 °C is accompanied with the build-up of insoluble oligomeric deposits in the micropores, resulting in a rapid catalyst deactivation. These deposits accumulate predominantly in the outer regions of the zeolite crystals, which points to mass transport limitations. Glucose isomerization in water is not only accompanied by the formation of insoluble deposits in the micropores, but also by the structural degradation of the zeolite due to desilication and destannation. Enhanced and sustained catalytic performance can be achieved by using ethanol/water mixtures as the reaction solvent instead of water.",

author = "{van der Graaff}, {William N.P.} and Tempelman, {Christiaan H.L.} and Hendriks, {Frank C.} and Javier Ruiz-Martinez and Sara Bals and Weckhuysen, {Bert M.} and Pidko, {Evgeny A.} and Hensen, {Emiel J.M.}",

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doi = "10.1016/j.apcata.2018.07.023",

language = "English (US)",

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T1 - Deactivation of Sn-Beta during carbohydrate conversion

AU - van der Graaff, William N.P.

AU - Tempelman, Christiaan H.L.

AU - Hendriks, Frank C.

AU - Ruiz-Martinez, Javier

AU - Bals, Sara

AU - Weckhuysen, Bert M.

AU - Pidko, Evgeny A.

AU - Hensen, Emiel J.M.

N1 - Generated from Scopus record by KAUST IRTS on 2019-08-08

PY - 2018/8/25

Y1 - 2018/8/25

N2 - The deactivation of Sn-Beta zeolite catalyst during retro-aldolization and isomerization of glucose is investigated. Confocal fluorescence microscopy reveals that retro-aldolization of glucose in CH3OH at 160 °C is accompanied with the build-up of insoluble oligomeric deposits in the micropores, resulting in a rapid catalyst deactivation. These deposits accumulate predominantly in the outer regions of the zeolite crystals, which points to mass transport limitations. Glucose isomerization in water is not only accompanied by the formation of insoluble deposits in the micropores, but also by the structural degradation of the zeolite due to desilication and destannation. Enhanced and sustained catalytic performance can be achieved by using ethanol/water mixtures as the reaction solvent instead of water.

AB - The deactivation of Sn-Beta zeolite catalyst during retro-aldolization and isomerization of glucose is investigated. Confocal fluorescence microscopy reveals that retro-aldolization of glucose in CH3OH at 160 °C is accompanied with the build-up of insoluble oligomeric deposits in the micropores, resulting in a rapid catalyst deactivation. These deposits accumulate predominantly in the outer regions of the zeolite crystals, which points to mass transport limitations. Glucose isomerization in water is not only accompanied by the formation of insoluble deposits in the micropores, but also by the structural degradation of the zeolite due to desilication and destannation. Enhanced and sustained catalytic performance can be achieved by using ethanol/water mixtures as the reaction solvent instead of water.

UR - https://linkinghub.elsevier.com/retrieve/pii/S0926860X18303478

U2 - 10.1016/j.apcata.2018.07.023

DO - 10.1016/j.apcata.2018.07.023

M3 - Article

SN - 0926-860X

VL - 564

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

ER -

Deactivation of Sn-Beta during carbohydrate conversion

Abstract

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