Turning Biodiesel Waste Glycerol into 1,3-Propanediol: Catalytic Performance of Sulphuric acid-Activated Montmorillonite Supported Platinum Catalysts in Glycerol Hydrogenolysis

Scientific Reports
Shanthi Priya SamudralaSankar Bhattacharya

Abstract

Direct C-O hydrogenolysis of bioglycerine to produce 1,3-propanediol selectively is a vital technology that can expand the scope of biodiesel industry and green chemical production from biomass. Herein we report sulphuric acid-activated montmorillonite clay supported platinum nanoparticles as highly effective solid acid catalysts for the selective production of 1,3-propanediol from glycerol. The catalytic performances of the catalysts were investigated in the hydrogenolysis of glycerol with a fixed bed reactor under ambient pressure. The results were found promising and showed that the activation of montmorillonite by sulphuric acid incorporated Brønsted acidity in the catalyst and significantly improved the selectivity to 1,3-propanediol. The catalytic performance of different platinum loaded catalysts was examined and 2 wt% Pt/S-MMT catalyst presented superior activity among others validating 62% 1,3-propanediol selectivity at 94% glycerol conversion. The catalytic activity of 2Pt/S-MMT was systematically investigated under varying reaction parameters including reaction temperature, hydrogen flow rate, glycerol concentration, weight hourly space velocity, and contact time to derive the optimum conditions for the reaction. The...Continue Reading

References

May 2, 2007·Angewandte Chemie·Mario PagliaroCristina Della Pina
Jan 29, 2008·Chemical Society Reviews·Chun-Hui Clayton ZhouG Q Max Lu
Oct 5, 2013·Journal of the American Chemical Society·Kwangjin AnGabor A Somorjai

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Methods Mentioned

BETA
X-ray
Scanning
nuclear magnetic resonance
NMR
Inductively coupled plasma atomic emission spectrometry
Transmission electron microscopy

Software Mentioned

GRAMS
Phenom Pro Suite

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