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Ethanol Dehydration over WO3TiO2 Catalysts Using Titania Derived from Sol-Gel and Solvothermal Methods
Joint Authors
Jongsomjit, Bunjerd
Tresatayawed, Anchale
Glinrun, Peangpit
Source
International Journal of Chemical Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-03-03
Country of Publication
Egypt
No. of Pages
11
Abstract EN
The present study aims to investigate the catalytic ethanol dehydration to higher value products including ethylene, diethyl ether (DEE), and acetaldehyde.
The catalysts used for this reaction were WO3/TiO2 catalysts having W loading of 13.5 wt.%.
For a comparative study, the TiO2 supports employed were varied by two different preparation methods including the sol-gel and solvothermal-derived TiO2 supports, denoted as TiO2-SG and TiO2-SV, respectively.
It is obvious that the different preparation methods essentially altered the physicochemical properties of TiO2 supports.
It was found that the TiO2-SV exhibited higher surface area and pore volume and larger amounts of acid sites than those of TiO2-SG.
As a consequence, different characteristics of support apparently affected the catalytic properties of WO3/TiO2 catalysts.
As expected, both catalysts WO3/TiO2-SG and WO3/TiO2-SV exhibited increased ethanol conversion with increasing temperatures from 200 to 400°C.
It appeared that the highest ethanol conversion (ca.
88%) at 400°C was achieved by the WO3/TiO2-SV catalysts due to its high acidity.
It is worth noting that the presence of WO3 onto TiO2-SV yielded a remarkable increase in DEE selectivity (ca.
68%) at 250°C.
In summary, WO3/TiO2-SV catalyst is promising to convert ethanol into ethylene and DEE, having the highest ethylene yield of ca.
77% at 400°C and highest DEE yield of ca.
26% at 250°C.
These can be attributed to proper pore structure, acidity, and distribution of WO3.
American Psychological Association (APA)
Tresatayawed, Anchale& Glinrun, Peangpit& Jongsomjit, Bunjerd. 2019. Ethanol Dehydration over WO3TiO2 Catalysts Using Titania Derived from Sol-Gel and Solvothermal Methods. International Journal of Chemical Engineering،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1158670
Modern Language Association (MLA)
Tresatayawed, Anchale…[et al.]. Ethanol Dehydration over WO3TiO2 Catalysts Using Titania Derived from Sol-Gel and Solvothermal Methods. International Journal of Chemical Engineering No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1158670
American Medical Association (AMA)
Tresatayawed, Anchale& Glinrun, Peangpit& Jongsomjit, Bunjerd. Ethanol Dehydration over WO3TiO2 Catalysts Using Titania Derived from Sol-Gel and Solvothermal Methods. International Journal of Chemical Engineering. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1158670
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1158670