Effect of Added Acrylate Demulsifier for Increasing Antioxidants Functional in Diesel Fuel Oil Cut Reza Wahyuni(1), Galank Cikal Nur Arifin(1), and Oksil Venriza (1)(a)(b)
(1) Logistic Oil and Gas of Department, Polytechnic Energy and Mineral Akamigas,
Jl. Gajah Mada no.38 Cepu, Blora, 58312, Central Java, Indonesia
(a) Corresponding author: oksil.venriza[at]esdm.go.id
(b) luctureroksil[at]gmail.com
Abstract
Biodiesel was produced by an esterification process with chemicals hygroscopic, otherwise, the biodiesel is very easy to produce from water, and the hydrocarbon compounds were easily oxidized, causing corrosion in the stockpiling process such as in storage tanks and distribution pipes. Antioxidants have been shown to reduce the formation of water in the biodiesel stockpiling process. While the demulsifier plays a role in helping to separate water and oil. In this study, the addition of an acrylate-based demulsifier in the accumulation of biodiesel-containing antioxidants was carried out. The antioxidant used in the form of tertiary butylhydroquinone (TBHQ) with a concentration of 0.5 M has been able to play an active role in inhibiting the formation of water in the biodiesel stockpiling process. However, the stability of the water and oil emulsion has not been achieved properly, therefore the addition of an acrylate-based demulsifier with a volume of 2 ml, 5 ml, and 10 ml into 100 ml biodiesel can separate oil and water well. The biodiesel that has been added with a demulsifier is evaluated at storage times of 24 hours, 48 hours, and 72 hours. The result is that the longer the accumulation process, the more stable the oil and water emulsion produced. An acrylate demulsifier that uses a semi-polar solvent is more effective than a polar solvent. To evaluate the water content in the biodiesel stockpiling process, water content measurements were carried out using coulometric and FTIR methods
