Greener synthesis of butylene carbonate via CO2 utilisation using graphene-inorganic nanocomposite catalysts

Conference item


Onyenkeadi, V, Aboelazayem, O, Kellici, S and Saha, B (2018). Greener synthesis of butylene carbonate via CO2 utilisation using graphene-inorganic nanocomposite catalysts. GPE 2018 – 6th International Congress on Green Process Engineering. Toulouse, France 03 - 06 Jun 2018
AuthorsOnyenkeadi, V, Aboelazayem, O, Kellici, S and Saha, B
Abstract

The synthesis of butylene carbonate (BC) through the reaction of butylene oxide (BO) and carbon dioxide has been investigated using highly efficient graphene-inorganic heterogeneous catalyst, lathana-cerium-zirconia and graphene oxide represented as La– Ce–Zr–GO nanocomposite. The catalysts have been extensively characterised using transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) surface area measurement powder X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) analysis. Response Surface Methodology (RSM) using Box-Behnken Design (BBD) has been applied to optimise the single and interactive effect of four independent reaction variables, i.e. temperature, pressure, catalyst loading and time, on the conversion of BO and BC yield. Two quadratic regression models have been developed representing an empirical relationship between each reaction response and all the independent variables. The predicted models have been validated statistically and experimentally, where the high agreement was observed between predicted and experimental results with approximate relative errors of ±1.5% for both the conversion BO and the yield of BC.

KeywordsButylene carbonate (BC); carbon dioxide (CO2) utilisation; continuous hydrothermal flow synthesis (CHFS); Box-Behnken Design (BBD); lathana-cerium-zirconia and graphene oxide nanocomposite (La-Ce-Zr/GO)
Year2018
Accepted author manuscript
License
CC BY 4.0
Publication dates
Print03 Jun 2018
Publication process dates
Deposited15 Aug 2018
Accepted23 Mar 2018
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https://openresearch.lsbu.ac.uk/item/86qqw

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