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Highly efficient TiO2-supported Co-Cu catalysts for conversion of glycerol to 1,2-propanediol
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Metadata
Document Title
Highly efficient TiO2-supported Co-Cu catalysts for conversion of glycerol to 1,2-propanediol
Author
Mondach W, Chanklang S, Somchuea P, Witoon T, Chareonpanich M, Faungnawakij K, Sohn H, Seubsai A
Name from Authors Collection
Affiliations
Kasetsart University; Kasetsart University; Kasetsart University; National Science & Technology Development Agency - Thailand; National Nanotechnology Center (NANOTEC); Kwangwoon University
Type
Article
Source Title
SCIENTIFIC REPORTS
ISSN
2045-2322
Year
2021
Volume
11
Issue
1
Page
-
Open Access
gold, Green Published
Publisher
NATURE PORTFOLIO
DOI
10.1038/s41598-021-02416-7
Format
Abstract
Glycerol is a low-cost byproduct of the biodiesel manufacturing process, which can be used to synthesize various value-added chemicals. Among them, 1,2-propanediol (1,2-PDO) is of great interest because it can be used as an intermediate and additive in many applications. This work investigated the hydrogenolysis of glycerol to 1,2-PDO over Co-Cu bimetallic catalysts supported on TiO2 (denoted as CoCu/TiO2) in aqueous media. The catalysts were prepared using the co-impregnation method and their physicochemical properties were characterized using several techniques. The addition of appropriate Cu increased the glycerol conversion and the 1,2-PDO yield. The highest 1,2-PDO yield was achieved over a 15Co0.5Cu/TiO2 catalyst at 69.5% (glycerol conversion of 95.2% and 1,2-PDO selectivity of 73.0%). In the study on the effects of operating conditions, increasing the reaction temperature, initial pressure, and reaction time increased the glycerol conversion but decreased the selectivity to 1,2-PDO due to the degradation of formed 1,2-PDO to lower alcohols (1-propanol and 2-propanol). The reaction conditions to obtain the maximum 1,2-PDO yield were a catalyst-to-glycerol ratio of 0.028, a reaction temperature of 250 degrees C, an initial H-2 pressure of 4 MPa, and a reaction time of 4 h.
Industrial Classification
Knowledge Taxonomy Level 1
Knowledge Taxonomy Level 2
Funding Sponsor
Faculty of Engineering at Kasetsart University, Bangkok, Thailand; Kasetsart University Research and Development Institute (KURDI); Center of Excellence on Petrochemical and Materials Technology, Thailand; National Nanotechnology Center (NANOTEC), NSTDA, Ministry of Science and Technology, Thailand
License
CC BY
Rights
Authors
Publication Source
WOS