A review on non-noble metal catalysts for glycerol hydrodeoxygenation to 1,2-propanediol with and without external hydrogen

The depleting petroleum oil resources, political embargos, and global warming dilemma have made it mandatory to develop alternative green technologies for energy and chemical production. Glycerol is one of the top-12 building block chemicals that can be mainly obtained as a coproduct of biodiesel pr...

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Published inGreen chemistry : an international journal and green chemistry resource : GC Vol. 24; no. 18; pp. 6751 - 6781
Main Authors Mane, Rasika, Jeon, Yukwon, Rode, Chandrashekhar
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 20.09.2022
Subjects
1,3-Propanediol
Alternative energy sources
Biodiesel fuels
Biofuels
Catalysts
Clean energy
Climate change
Commercialization
Cost analysis
Crude oil
Economic analysis
Ethylene glycol
Fine chemicals
Global warming
Glycerol
Green chemistry
Hydrogen
Hydrogenolysis
Metals
Mixed oxides
Noble metals
Reforming
Reviews
Selectivity
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Summary:The depleting petroleum oil resources, political embargos, and global warming dilemma have made it mandatory to develop alternative green technologies for energy and chemical production. Glycerol is one of the top-12 building block chemicals that can be mainly obtained as a coproduct of biodiesel production. The value addition of glycerol is only possible through its conversion to commodity and fine chemicals. Glycerol hydrogenolysis is one of the crucial pathways to produce several value-added products, among which 1,2-propanediol (1,2-PDO), 1,3-propanediol (1,3-PDO), ethylene glycol (EG) and 1-and/or 2-propanols are hydrogenolysis products. Selective glycerol hydrogenolysis to the desired product 1,2-PDO is only possible through the catalyst having an optimum combination of acid/base and metal sites (metallic and mixed oxides). The present review mainly focuses on the critical assessment of the influence of different supports, catalyst preparation methods, and/or pretreatment on structural, and electronic properties and simultaneously on the activity and product selectivity of non-noble metal catalysts. The role of reaction parameters in this industrially important reaction on catalyst performance will also be presented. A rigorous survey of patented literature on non-noble metal-catalyzed glycerol hydrogenolysis to 1,2-PDO is also discussed. Further, the review covers recent progress on non-noble metal-catalyzed autogenous glycerol hydrogenolysis through glycerol aqueous phase reforming (APR) and/or catalytic transfer hydrogenolysis (CTH), to overcome the cost and handling issues of external hydrogen. Finally, techno-economic analysis is also presented which compares the glycerol hydrogenolysis with and without external hydrogen with the conventional process of 1,2-PDO production. This analysis indicated that CTH and glycerol hydrogenolysis under ambient hydrogen pressure have the potential for commercialization, however catalyst stability and elimination of co-product formation at higher glycerol concentration need to be considered critically. This review summarizes Cu-based catalysts for sustainable hydro-deoxygenation of glycerol to 1,2-propanediol with and without external hydrogen including various mechanistic pathways for the reactions involved.
Bibliography:2
Dr Yukwon Jeon was born in the Germany. He completed his Ph.D. in chemical and biomolecular engineering in 2015 under the guidance of Prof. Yong-Gun Shul at Yonsei University. Since 2016-2019 worked as a research fellow at the University of St Andrews, School of Chemistry, UK with Prof. John T. S. Irvine, thereafter he joined Yonsei University as an Assistant Professor at the Department of Environmental and Energy Engineering. His research interest includes design, synthesis and characterization of inorganic(-organic) catalytic materials such as metals, metal oxides, perovskites, heteropolyacids, carbons, zeolites and composites
etc.
for energy and environmental applications.
Dr Rasika Mane completed her Ph.D. in 2014 at the CSIR-National Chemical Laboratory, Pune (India) on the topic of renewable glycerol hydrogenolysis under the guidance of Dr C. V. Rode. Further, she continued with different products and catalysis aspects of this commercially very important process. Following the Nehru Science Postdoctoral fellowship with Dr Sadhana Rayalu at NEERI, Nagpur (2014-2017), she is presently working as a postdoctoral fellow under the BK21 program at Yonsei University, South Korea with Prof. Y. Jeon. Her research interest lies in the design of multifunctional heterogeneous catalysts for biomass-derived building block transformations and CO
Dr Chandrashekhar V. Rode was born in India and received his Ph.D. from Pune University, Pune, India in 1993. He joined as a Scientist at CSIR-National Chemical Laboratory, Pune and further, he has held a Chief Scientist position till 2018 in the same institute. He is presently working as a CSIR-Emeritus scientist at the same institute. His research mainly focused on heterogeneous multifunctional catalysis for sustainability using bio-derived feedstock, structural characterization and correlation with activity, tandem/cascade catalysis for fine chemicals, catalysis in supercritical carbon dioxide, bench scale process development, kinetics, and chemical reaction engineering. He is a Fellow of National Academy of Engineering and a Fellow of Maharshtra Academy of Science.
neutral processes.
ISSN:1463-9262
1463-9270
DOI:10.1039/d2gc01879a