Issue 10, 2024

Synthesis of glycerol carbonate using Li/Mg/K modified zeolite beta: a kinetic study

Abstract

In the present investigation, glycerol and dimethyl carbonate were transesterified using a Li/Mg/K modified zeolite beta catalyst to synthesize glycerol carbonate. The various prepared zeolite catalysts were characterized using XRD, FE-SEM, EDS, HR-TEM, XPS, and DLS techniques. Many tests were conducted to optimize the reaction conditions to obtain the highest yield of glycerol carbonate by changing the catalyst concentration (5–20 wt%), glycerol-to-dimethyl carbonate mole ratio (1 : 2–1 : 6), and reaction temperature (65–105 °C). A maximum of 81.48% glycerol carbonate was obtained under optimized reaction conditions (a glycerol : dimethyl carbonate mole ratio of 1 : 5, a Li20β dosage of 10 wt% w.r.t. GLY, a temperature of 95 °C, and a time of 5 h). The experimental data followed second-order reaction kinetics with an activation energy of 34.60 kJ mol−1.

Graphical abstract: Synthesis of glycerol carbonate using Li/Mg/K modified zeolite beta: a kinetic study

Associated articles

Supplementary files

Article information

Article type
Paper
Submitted
03 Nov 2023
Accepted
08 Feb 2024
First published
21 Feb 2024

New J. Chem., 2024,48, 4617-4628

Synthesis of glycerol carbonate using Li/Mg/K modified zeolite beta: a kinetic study

P. Gautam, S. Barman and A. Ali, New J. Chem., 2024, 48, 4617 DOI: 10.1039/D3NJ05074B

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