CHEMICA Jurnal Teknik Kimia
Vol 10, No 2 (2023): August 2023

Glycerol Acetylation: Effect of Graphene Oxide Catalyst Mass Percentage on Glycerol Conversion and Acetin Selectivity

Nur Hidayati (Universitas Muhammadiyah Surakarta)
Eggy Juan Prasetyo (Universitas Muhammadiyah Surakarta)
Wahyu Annisa Mega Brilianti (Universitas Muhammadiyah Surakarta)
Herry Purnama (Universitas Muhammadiyah Surakarta)
Malik Musthofa (Universitas Muhammadiyah Surakarta)
Anisa Ur Rahmah (Unknown)



Article Info

Publish Date
02 Oct 2023

Abstract

Glycerol, a byproduct of the transesterification reaction has a wide range of applications. Acetylation is a promising method for converting surplus glycerol into mono-, di-, and tri-acetin, which is used in the cosmetic, pharmaceutical, polymer, and fuel additive sectors. The kind of catalyst and reaction conditions influence glycerol conversion and acetylation selectivity. Acetylation of glycerol was performed in this study by reacting acetic acid and glycerol with a graphene oxide catalyst produced using the Hummers method. The amount of graphene oxide catalyst (3%, 5%, and 7%) in the reaction mixture was adjusted to see how it affected glycerol conversion and reaction product selectivity. Other variables such as the glycerol:acetic acid mole ratio of 1:9, reaction temperature of 120oC, stirring speed of 1000 rpm, and reaction time of 120 minutes were held constant. Glycerol conversion improves with increasing catalyst mass in the reaction mixture, with the highest conversion (92.1%) achieved when employing a 7% catalyst mass, with its selectivity to monoacetin, diacetin, and triacetin being 70.2%, 4.2%, and 25.6%, respectively.

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Journal Info

Abbrev

CHEMICA

Publisher

Subject

Chemical Engineering, Chemistry & Bioengineering Energy

Description

CHEMICA Jurnal Teknik Kimia ISSN, 2355-875X (print) 2355-8776 (online) is a journal that publishes manuscripts or scientific papers in Chemical Engineering. The scope of this journal covers chemical reaction techniques, separation, optimization, process control, process system engineering, waste ...