Influence of fatty acid methyl esters from hydroxylated vegetable oils on diesel fuel lubricity

. In the paper the influence of equivolumetric mixture of ethyl levulinate and fatty acid methyl esters on chosen properties of diesel fuel was demonstrated. It was found that the aforementioned mixture influences the diesel fuel lubricity positively, it does not increase the cold filter plugging point of diesel fuel and does not affect the cetane number and the flash point of diesel fuel significantly

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Formate Esters Containing Biodiesel - Diesel Mixed Fuels

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.903.75 ◽

2021 ◽

Vol 903 ◽

pp. 75-80

Author(s):

Valdis Kampars ◽

Anastasija Naumova

Keyword(s):

Fatty Acid ◽

Diesel Fuel ◽

Fatty Acid Methyl Esters ◽

Methyl Formate ◽

Methyl Esters ◽

Carbon Residue ◽

Flow Properties ◽

Cold Flow ◽

Cold Flow Properties ◽

Acid Methyl

The blends of varying proportions of biodiesel (FAME) containing formate esters of glycerol and 93.0 wt.% fatty acid methyl esters, obtained in an interesterification reaction with methyl formate without further purification, and winter diesel fuel, were prepared, analyzed and compared with winter diesel fuel. The obtained results showed that blends comprising up to 20 vol.% of FAME fulfill the requirements of the standard LVS EN 590 concerning such characteristics as cold flow properties, viscosity, density, and carbon residue. The increase of FAME content worsens the cold flow properties; however, the mixed fuel with 20 vol.% or lower FAME content, according to the cloud point and cold filter plugging point values, remains in the same severe climate "Class 0" group as winter fuel. The carbon residue of mixed fuels raises with increasing FAME content, but stay low and do not exceed the limits of standard for mixtures with FAME percentage up to 20 vol.%. The comparison of mixed fuels containing 20 vol.% of FAME and the same amount of neat biodiesel (99.6 wt.% of fatty acid methyl esters) shows that the difference is negligible. The obtained results have indicated a good potential of FAME obtained in the interesterification reaction with methyl formate without further purification as a diesel fuel additive for up to 20 vol.%.

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The Effect of Biodiesel Composition on Characteristics of Blended Summer Diesel Fuel

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.850.133 ◽

2020 ◽

Vol 850 ◽

pp. 133-137

Author(s):

Valdis Kampars ◽

Ruta Kampare ◽

Anastasija Naumova

Keyword(s):

Fatty Acid ◽

Diesel Fuel ◽

Fatty Acid Methyl Esters ◽

Methyl Esters ◽

Biodiesel Fuel ◽

Engine Fuel ◽

Flow Properties ◽

Cold Flow ◽

Acid Methyl ◽

Good Potential

The blends of varying proportions of biodiesel fuel containing fatty acid methyl esters and triacetin (FAME*), synthesised accordingly to Latvian patent LV 15 373 and summer diesel were prepared, analysed and compared with diesel fuel. The selected fuel properties (viscosity, density, carbon residue and cold flow properties) tested accordingly to standard LVS-EN 14214 have indicated a good potential of FAME*, obtained by synthesis of fatty acid methyl esters (FAME) by simultaneous conversion of glycerol to triacetin as a renewable diesel engine fuel. The results showed that blends containing 5 to 25% of FAME* in summer diesel yielded the properties closely matching that of diesel.Introduction

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