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Koivikko, N.; Ojala, S.; Laitinen, T.; Lopes da Silva, F.; Hautala, L.; El Assal, Z.; Honkanen, M.; Vippola, M.; Huuhtanen, M.; Huttula, M.; et al. Activity and in Situ DRIFT Studies on Vanadia Catalysts during Oxidative Dehydrogenation of Sulfur-Contaminated Methanol. Appl. Catal. B Environ. 2022, 318, 121803.

Activity and in situ DRIFT studies on vanadia catalysts during oxidative dehydrogenation of sulfur-contaminated methanol

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Author: Koivikko, Niina1; Ojala, Satu1; Laitinen, Tiina1;
Organizations: 1Environmental and Chemical Engineering (ECE), Faculty of Technology, University of Oulu, P.O. Box 4300, FI-90014 Oulu, Finland
2Nano and Molecular Systems Research Unit, University of Oulu, P.O. Box 3000, FI-90014 Oulu, Finland
3MAX IV Laboratory, Lund University, Box 118, 22100 Lund, Sweden
4Tampere Microscopy Center, Tampere University, P.O. Box 692, FI-33014, Finland
5Global Catalyst Competence Center, Dinex Finland Oy, 41330, Vihtavuori, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 8.8 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2023060552519
Language: English
Published: Elsevier, 2022
Publish Date: 2023-06-05
Description:

Abstract

Silica-titania (70/30) supported vanadium catalysts were prepared, characterized, and studied in oxidative dehydrogenation of sulfur-contaminated methanol. The quality of vanadia species is dependent on temperature and gas conditions during preparation, support type, support specific surface area and VOx surface density. For example, upon heating the amount of V2O5 decrease along with formation of polymeric species. Such changes may occur also during the catalytic reaction. The reaction experiments and characterization results showed that the stability of polymeric vanadia species and total acidity has a connection with better formaldehyde production performance. The best performance was observed for N2-calcined silica-titania catalyst. Easy reducibility of the catalyst, as in the case of reference catalysts, leads to further oxidation of formaldehyde.

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Series: Applied catalysis. B, Environmental
ISSN: 0926-3373
ISSN-E: 1873-3883
ISSN-L: 0926-3373
Volume: 318
Article number: 121803
DOI: 10.1016/j.apcatb.2022.121803
OADOI: https://oadoi.org/10.1016/j.apcatb.2022.121803
Type of Publication: A1 Journal article – refereed
Field of Science: 215 Chemical engineering
Subjects:
AP-XPS
Environmental catalysis
VOC utilization
in situ DRIFT
in situ Raman
Article
Funding: This work was carried out with the financial support of the Academy of Finland (ELECTRA-project, grant numbers 289266, 294063 and 319448), the Finnish foundation of technology promotion, Jenny and Antti Wihuri foundation and Jorma and Riitta Takanen foundation. Otto A. Malm foundation and Tauno Tönning Foundation are also acknowledged.
Academy of Finland Grant Number: 289266
294063
319448
Detailed Information: 289266 (Academy of Finland Funding decision)
294063 (Academy of Finland Funding decision)
319448 (Academy of Finland Funding decision)
Dataset Reference: The data is not available at the moment; some data may later be available on request.
Copyright information: © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
  https://creativecommons.org/licenses/by/4.0/