Highly efficient TiO2-supported Co–Cu catalysts for conversion of glycerol to 1,2-propanediol

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 investiga...

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Autores principales:	Wongsaphat Mondach, Sarun Chanklang, Pooripong Somchuea, Thongthai Witoon, Metta Chareonpanich, Kajornsak Faungnawakij, Hiesang Sohn, Anusorn Seubsai
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d9e68505cd574da1bff1c756c8ddb5eb
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spelling	oai:doaj.org-article:d9e68505cd574da1bff1c756c8ddb5eb2021-12-05T12:11:37ZHighly efficient TiO2-supported Co–Cu catalysts for conversion of glycerol to 1,2-propanediol10.1038/s41598-021-02416-72045-2322https://doaj.org/article/d9e68505cd574da1bff1c756c8ddb5eb2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-02416-7https://doaj.org/toc/2045-2322Abstract 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 °C, an initial H2 pressure of 4 MPa, and a reaction time of 4 h.Wongsaphat MondachSarun ChanklangPooripong SomchueaThongthai WitoonMetta ChareonpanichKajornsak FaungnawakijHiesang SohnAnusorn SeubsaiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wongsaphat Mondach Sarun Chanklang Pooripong Somchuea Thongthai Witoon Metta Chareonpanich Kajornsak Faungnawakij Hiesang Sohn Anusorn Seubsai Highly efficient TiO2-supported Co–Cu catalysts for conversion of glycerol to 1,2-propanediol
description	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 °C, an initial H2 pressure of 4 MPa, and a reaction time of 4 h.
format	article
author	Wongsaphat Mondach Sarun Chanklang Pooripong Somchuea Thongthai Witoon Metta Chareonpanich Kajornsak Faungnawakij Hiesang Sohn Anusorn Seubsai
author_facet	Wongsaphat Mondach Sarun Chanklang Pooripong Somchuea Thongthai Witoon Metta Chareonpanich Kajornsak Faungnawakij Hiesang Sohn Anusorn Seubsai
author_sort	Wongsaphat Mondach
title	Highly efficient TiO2-supported Co–Cu catalysts for conversion of glycerol to 1,2-propanediol
title_short	Highly efficient TiO2-supported Co–Cu catalysts for conversion of glycerol to 1,2-propanediol
title_full	Highly efficient TiO2-supported Co–Cu catalysts for conversion of glycerol to 1,2-propanediol
title_fullStr	Highly efficient TiO2-supported Co–Cu catalysts for conversion of glycerol to 1,2-propanediol
title_full_unstemmed	Highly efficient TiO2-supported Co–Cu catalysts for conversion of glycerol to 1,2-propanediol
title_sort	highly efficient tio2-supported co–cu catalysts for conversion of glycerol to 1,2-propanediol
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d9e68505cd574da1bff1c756c8ddb5eb
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Highly efficient TiO2-supported Co–Cu catalysts for conversion of glycerol to 1,2-propanediol

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