scholarly journals Noncatalytic biodiesel synthesis from rubber seed oil via supercritical methanol and ethanol

2016 ◽  
Vol 19 (3) ◽  
pp. 129-137
Author(s):  
Viet Tan Tran ◽  
Phung Thi Kim Le ◽  
Anh Tuan Pham ◽  
Khoa Anh Tran

This paper reports the production of fatty acid methyl esters (FAMEs) and fatty acid ethyl esters (FAEEs) by the transesterification reaction of rubber seed oil (RSO) in supercritical methanol and ethanol without using any catalyst. Experiment were carried out in a batch reactor, and reactions were studied at 260, 280, 300 and 320 oC at a pressure of 8.1-19 MPa with various mole ratios of ethanol – to - methanol from 0 to 100%. The extent of the reaction was explored using a convertibility parameter, which corresponds to the maximum ester content attainable from the feedstock. The highest FAME and FAEE contents achieved were 91.8 % and 86.4%, respectively. Results show that transesterification of RSO in methanol was more efficient than that in ethanol; the temperature had the strongest influence.

2018 ◽  
Vol 41 (5) ◽  
pp. 1013-1018 ◽  
Author(s):  
Hanh Ngoc Thi Le ◽  
Kiyoshi Imamura ◽  
Norie Watanabe ◽  
Masakazu Furuta ◽  
Norimichi Takenaka ◽  
...  

2015 ◽  
Vol 781 ◽  
pp. 655-658 ◽  
Author(s):  
Thakun Sawiwat ◽  
Somjai Kajorncheappunngam

Synthesis of biodiesel from rubber seed oil using a supercritical methanol was investigated under various reaction conditions (220 - 300°C, 80 - 180 bar) with reaction time of 1-15 min and oil:methanol molar ratio of 1:20 - 1:60. Free fatty acid methyl esters (FAMEs) content were analyzed by gas chromatography-mass spectroscopy (GC-MS). Most properties of produced biodiesel were in good agreement with biodiesel standard (EN 14214). The maximum FAME yield of 86.90% was obtained at 260°C, 160 bar, 5 min reaction time using oil:methanol molar ratio of 1:40. The result showed the acid value of rubber seed oil decreased to 0.58 mgKOH/g from initial 24 mgKOH/g to. It could be concluded from this findings that crude rubber seed oil is a promising alternative raw material for biodiesel synthesis via supercritical methanol tranesterification.


2019 ◽  
Vol 141 ◽  
pp. 111658 ◽  
Author(s):  
Olusegun D. Samuel ◽  
Modestus O. Okwu ◽  
Semiu T. Amosun ◽  
Tikendra Nath Verma ◽  
Sunday A. Afolalu

Food Control ◽  
2003 ◽  
Vol 14 (7) ◽  
pp. 463-467 ◽  
Author(s):  
J. Gamazo-Vázquez ◽  
M.S. Garcı́a-Falcón ◽  
J. Simal-Gándara

2016 ◽  
Vol 13 (7) ◽  
pp. 720-729 ◽  
Author(s):  
Tho Dinh Son Van ◽  
Nghia Phan Trung ◽  
Vu Nguyen Anh ◽  
Huong Nguyen Lan ◽  
Anh To Kim

Fuel ◽  
2014 ◽  
Vol 120 ◽  
pp. 195-201 ◽  
Author(s):  
Huei Ruey Ong ◽  
Maksudur R. Khan ◽  
M.N.K. Chowdhury ◽  
Abu Yousuf ◽  
Chin Kui Cheng

Author(s):  
Abdul Shokib ◽  
Pramita Gumanti ◽  
M. Rachimoellah Rachimoellah

2014 ◽  
Vol 625 ◽  
pp. 897-900 ◽  
Author(s):  
Junaid Ahmad ◽  
Suzana Yusup ◽  
Awais Bokhari ◽  
Ruzaimah Nik Mohammad Kamil

Energy crises, depletion of fossil fuel reservoirs, environmental pollution, global warming, green house effect and starvation are becoming very serious problems in the modern world. Biodiesel is a liquid fuel which can be the best alternative for the fossil fuels. In this study, non-edible rubber seed oil (RSO) with high free fatty acid (FFA) content (45%) was used for the production of biodiesel. The process comprises of two steps, in the first step acid esterification was used to reduce the FFA and in the second step base transesterification was employed to convert the treated oil into rubber seed oil methyl esters (RSOMEs). The conversion yield of biodiesel was analyzed using gas chromatography. The fuel properties were tested using the standard procedure of ASTM D6751 and EN14214. All the properties were within the ranges of the biodiesel standards. The result shows that rubber seed oil is a potential non-edible source for biodiesel production.


2015 ◽  
Vol 41 (7) ◽  
pp. 2515-2526 ◽  
Author(s):  
Lai Fatt Chuah ◽  
Awais Bokhari ◽  
Suzana Yusup ◽  
Jiří Jaromír Klemeš ◽  
Bawadi Abdullah ◽  
...  

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