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

Sub Inorganic Chemistry and Catalysis

Research output: Contribution to journal › Article › Academic › peer-review

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
Pages (from-to)	113-122
Journal	Applied Catalysis A: General
Volume	564
DOIs	https://doi.org/10.1016/j.apcata.2018.07.023
Publication status	Published - 25 Aug 2018

Keywords

Sn-Beta
Confocal fluorescence microscopy
Catalyst deactivation
Biomass conversion
Flow chemistry
Zeolite catalysis

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10.1016/j.apcata.2018.07.023

DeactivationFinal published version, 2.32 MBLicence: CC BY

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

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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.",

keywords = "Sn-Beta, Confocal fluorescence microscopy, Catalyst deactivation, Biomass conversion, Flow chemistry, Zeolite catalysis",

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.}",

year = "2018",

month = aug,

day = "25",

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

language = "English",

volume = "564",

pages = "113--122",

journal = "Applied Catalysis A: General",

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TY - JOUR

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.

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.

KW - Sn-Beta

KW - Confocal fluorescence microscopy

KW - Catalyst deactivation

KW - Biomass conversion

KW - Flow chemistry

KW - Zeolite catalysis

U2 - 10.1016/j.apcata.2018.07.023

DO - 10.1016/j.apcata.2018.07.023

M3 - Article

SN - 0926-860X

VL - 564

SP - 113

EP - 122

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

ER -

Deactivation of Sn-Beta during carbohydrate conversion

Abstract

Keywords

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