Determination of Methyl Ester Content of Pectin

The used of palm-biodiesel fuel in automotive industry is increasing rapidly nowadays. Among the reasons are high efficiency modern fuel injection system of diesel engines and the shortage of petroleum diesel fuel from fossil resources. Among the parts affected by the fuel switch are fuel pumps components, including the fuel injection needle. Those components, working under the lubrication environment of the fuel, have to be prevented from excessive wear to maintain their high performances. This paper discussed the wear characteristics of stainless steel 304 sliding against cast iron under the lubrication environment of palm-biodiesel fuel with the concentration of 7.5% palm methyl ester in the petroleum diesel fuel. The material pair is chosen because of their widely used as mechanical components. The tests were conducted using a ball on disk tribometer. The results show that wear of the stainless steel ball is smaller in the environment with the presence of palm methyl ester content in the diesel fuel compared to that in the environment without the presence of the palm methyl ester content. The results suggested that palm-biodiesel fuel is favorable in decreasing the wear of the material.

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Optimization of Sunflower Oil Transesterification Process Using Sodium Methoxide

The Scientific World JOURNAL ◽

10.1100/2012/475027 ◽

2012 ◽

Vol 2012 ◽

pp. 1-8 ◽

Cited By ~ 19

Author(s):

Sara KoohiKamali ◽

Chin Ping Tan ◽

Tau Chuan Ling

Keyword(s):

Methyl Ester ◽

Sunflower Oil ◽

Sodium Methoxide ◽

Methyl Esters ◽

Acid Methyl Ester ◽

Process Conditions ◽

Suitable Alternative ◽

Ester Content ◽

Significant Difference ◽

Methyl Ester Content

In this study, the methanolysis process of sunflower oil was investigated to get high methyl esters (biodiesel) content using sodium methoxide. To reach to the best process conditions, central composite design (CCD) through response surface methodology (RSM) was employed. The optimal conditions predicted were the reaction time of 60 min, an excess stoichiometric amount of alcohol to oil ratio of 25%w/w and the catalyst content of 0.5%w/w, which lead to the highest methyl ester content (100%w/w). The methyl ester content of the mixture from gas chromatography analysis (GC) was compared to that of optimum point. Results, confirmed that there was no significant difference between the fatty acid methyl ester content of sunflower oil produced under the optimized condition and the experimental value (P≥0.05). Furthermore, some fuel specifications of the resultant biodiesel were tested according to American standards for testing of materials (ASTM) methods. The outcome showed that the methyl ester mixture produced from the optimized condition met nearly most of the important biodiesel specifications recommended in ASTM D 6751 requirements. Thus, the sunflower oil methyl esters resulted from this study could be a suitable alternative for petrol diesels.

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Effect of Methyl Ester Content on Heat Degradation of Chelator-Soluble Carrot Pectin

Journal of Food Science ◽

10.1111/j.1365-2621.1989.tb05972.x ◽

1989 ◽

Vol 54 (5) ◽

pp. 1272-1277 ◽

Cited By ~ 83

Author(s):

T. SAJJAANANTAKUL ◽

J. P. BUREN ◽

D. L. DOWNING

Keyword(s):

Methyl Ester ◽

Ester Content ◽

Heat Degradation ◽

Methyl Ester Content

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Butyric Acid Methyl Ester content determination and precision data

Talanta Open ◽

10.1016/j.talo.2021.100042 ◽

2021 ◽

pp. 100042

Author(s):

Katia Kontoghiorghe

Keyword(s):

Methyl Ester ◽

Butyric Acid ◽

Acid Methyl Ester ◽

Precision Data ◽

Ester Content ◽

Content Determination ◽

Acid Methyl ◽

Butyric Acid Methyl Ester ◽

Methyl Ester Content

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Alteration of Biodiesel Properties and Automotive Diesel Engine Performance due to Temperature Variation of the Transesterification Process

Jurnal Rekayasa Kimia & Lingkungan ◽

10.23955/rkl.v15i2.16007 ◽

2020 ◽

Vol 15 (2) ◽

pp. 90-98

Author(s):

Dwi Widjanarko ◽

Ratna Dewi Kusumaningtyas ◽

Ahmad Afwan Fathoni

Keyword(s):

Diesel Engine ◽

Methyl Ester ◽

Reaction Temperature ◽

Engine Performance ◽

Performance Testing ◽

Transesterification Reaction ◽

Biodiesel Fuel ◽

Biodiesel Properties ◽

Ester Content ◽

Methyl Ester Content

This study aimed to examine the effects of transesterification reaction temperature on the biodiesel properties and diesel engine performance. Biodiesel properties evaluated in this work included viscosity, density, and methyl ester content. Meanwhile, the diesel engine performance testing comprised the examination of the engine’s torque and power. The research was conducted in several stages, viz. producing biodiesel from fresh cooking oil with variations in transesterification temperature of 45℃, 55℃, and 65℃; testing the characteristics of biodiesel produced; blending biodiesel with petroleum diesel to result in B30 biodiesel fuel; and testing biodiesel fuel (B30) in diesel-engined vehicles. It was revealed that the higher transesterification temperature led to the lower biodiesel viscosity, the decreasing value of biodiesel density values, and the higher methyl ester content. Furthermore, it was also demonstrated that increase of the transesterification temperature resulted in the higher value of torque and power generated. However, compared to the petroleum diesel fuel (B0), biodiesel fuel (B30) exhibited the lower values of the engine’s torque and power. The highest average values of torque and power of B30 fueled diesel-engine were 108.11 Nm and 43.51 kW, respectively, provided by the biodiesel produced at the transesterification reaction temperature of 65℃.of 65℃.

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