JURNAL REKAYASA KIMIA & LINGKUNGAN
Vol 20, No 2 (2025): Jurnal Rekayasa Kimia & Lingkungan (December, 2025) In Press

Acetylation of Glycerol Catalyzed by CaO as Octane Booster in Gasoline Fuel

Nugraheni, Ika Kusuma (Unknown)
Sokheh, Sahidin (Unknown)
Artika, Kurnia Dwi (Unknown)



Article Info

Publish Date
07 Oct 2025

Abstract

Glycerol, a byproduct of biodiesel production, can be transformed into value-added compounds such as triacetin, which serves as an effective octane booster in gasoline. This study investigates the acetylation of glycerol with acetic acid using calcium oxide (CaO) as a heterogeneous catalyst. Catalyst concentrations of 1%, 2.5%, 5%, 7.5%, and 10% were tested under reaction conditions of 100C for 180 minutes. The resulting products were analyzed using gas chromatographymass spectrometry (GC-MS) to identify acetylated derivatives. Among the tested conditions, 5% CaO yielded the highest triacetin content. The acetylated product was then blended into gasoline at a 5% concentration. Fuel testing showed an increase in the Research Octane Number (RON) from 84 (pure gasoline) to 93 with the addition of triacetin, along with slight increases in fuel density and viscosity. These findings highlight the potential of CaO-catalyzed glycerol acetylation for producing high-performance fuel additives.

Copyrights © 2025






Journal Info

Abbrev

RKL

Publisher

Subject

Chemical Engineering, Chemistry & Bioengineering Energy Engineering

Description

The Journal of Chemical Engineering and Environment is an open access journal that publishes papers on chemical engineering and environmental engineering. The following topics are included in these sciences: Food and biochemical engineering Catalytic reaction engineering Clean energy technology ...