Publication: A study of Biodiesel (Ethyl Ester) production from Grease/Oil Rich Sludge through Acid-Catalytic Ethanol Transesterification and It’s Fuel Specifications
Issued Date
2010-08
Resource Type
Language
eng
Rights
Mahidol University
Rights Holder(s)
Faculty of Environment and Resource Studies. Mahidol University
Bibliographic Citation
Environment and Natural Resources Journal. Vol.8, No.2 (2010), 31-46
Suggested Citation
Kappaput Thong-Innatra, Gritsanaruk Theeraraj, Chumporn Yuwaree, Kitikorn Charmondusit, Rungjarat Hutacharoen A study of Biodiesel (Ethyl Ester) production from Grease/Oil Rich Sludge through Acid-Catalytic Ethanol Transesterification and It’s Fuel Specifications. Environment and Natural Resources Journal. Vol.8, No.2 (2010), 31-46. Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/3189
Research Projects
Organizational Units
Authors
Journal Issue
EnNRJ Vol. 8 No. 2
(2010)
Thesis
Title
A study of Biodiesel (Ethyl Ester) production from Grease/Oil Rich Sludge through Acid-Catalytic Ethanol Transesterification and It’s Fuel Specifications
Corresponding Author(s)
Other Contributor(s)
Abstract
The objective of this study is to produce biodiesel from grease/oil rich sludge
which was trapped from the canteen of Mahidol University’s Salaya campus. The
biodiesel was produced through the process of transesterification reaction in the
presence of an acidic catalyst of concentrated sulfuric acid. 100% excess ethanol was
used to accomplish the reaction at the molecular ratio of 30:1 (ethanol to grease) at
90C for 90 minutes. The finished product contained 95.17% biodiesel by volume with
an API gravity value of 0.90 g/cm3 at 15C, a viscosity value of 8.69 mm2/s at 40C, a
flash point value of 184C, and a heat value of 9,685.35 cal/g. The blending with
petroleum based diesel or baseline diesel (commercial diesel) at the proportions of 5,
10, 15, and 20 percent showed no statistical significant difference at the 0.05 level. In
addition, the engine performance of the blends had slightly higher engine torque and
engine power than baseline diesel. In conclusion, this study found that the conversion
of the canteen’s trap grease into ethyl ester had the potential to be a diesel substitute,
particularly at the blending ration of 15%.