Volume 9, Issue 2 (7-2019)                   JEM 2019, 9(2): 86-95 | Back to browse issues page

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Abstract:   (2688 Views)
In this research, a comparison of biodiesel produced by ultrasound and heat methods was investigated. Methanol was used as the alcohol with molarity 3, 6 and 9 and KOH 0.5, 1 and 1.5 .%wt as a catalyst. In ultrasound technique, five vibrating pulse levels and three-time levels were used. The results indicate that biodiesel produced by ultrasound in some properties includes an increase in flash point of about 9% and a decrease of viscosity, carbon residue, and water content in fuel by 27%, 50% and 5%, respectively. The biodiesel cloud point produced by the heat treatment method 2 and ultrasound waves 7 was obtained. It should be noted that the fuel produced in both methods can be used as a standard fuel in the engine. It was also found that ultrasonic waves are more appropriate than heat treatment due to its need for less time and better quality characteristics.
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Type of Study: Research | Subject: Special
Received: 2018/06/12 | Revised: 2019/10/26 | Accepted: 2018/11/18 | Published: 2019/06/3

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