Biofuels

Biofuels

Fatty acid methyl esters (FAME) are used either as a fuel for compression-ignition engines and for heating in 100% concentration, or as a component of the distillate fuel for compression-ignition engines and of the heating fuel. In concentration of 100% it is usable as fuel for cars containing the compression-ignition engine and for heating equipment designed or modified for the operation with 100% FAME.

Tests of fatty acid methyl esters (FAME) acc. to STN EN 14214

Property
Content of FAME
Density at 15 °C
Viscosity at 40 °C
Flash point
Cetane number
Corrosion on a copper plate (3 h at 50 °C)
Oxidizing stability (at 110 °C)
Acid number
Iodine number
Linolenic acid methyl ester
Polyolefines (≥4 olefinic bounds) methyl esters
Methanol content
Monoglycerides content
Diglycerides content
Triglycerides content
Free glycerol
Total glycerol
Water content
Impurities content
Sulphated ash content
Sulphur content
Metals of the 1st group (Na + K)
Metals of the 2nd group (Ca + Mg)
Phosphorus content
Cold Filter Plugging Point (CFPP)


Fuel mixtures tests – diesel oil and high content FAME (B11 – B30) acc. to TNI CEN/TR 16557

Property
Density at 15 °C
Viscosity at 40 °C
Distillation test
Cetane number
Sulphur content
Flash point
Appearance
Water content
Acid number
Oxidizing stability (at 110 °C)
Impurities content
Content of FAME
Cold Filter Plugging Point (CFPP)
Ash content
Metals of the 1st group (Na + K)
Metals of the 2nd group (Ca + Mg)

Etanol E95
Ethanol E95 containing suitable additives is suitable for use in compression ignition engines. The compression ignition engine is subject to modification for use of such fuel.

Property
Ethanol content
Methanol content
Density at 20 °C
Total acidity as acetic acid
Appearance
Water
Non-volatile fraction (evaporation residue)
Colour acc. to Hazen
Aldehyde content as acetaldehyde
Ester content as ethyl acetate
Total impurities
Lead content
Phosphorus content
Chlorides content
Copper content
Sulphur content

Ethanol E85
Ethanol E85 is a mixture of 85% (V/V) of ethanol with motor petrol but also involving the option of diverse season mixing ratio containing more than 50% (V/V) of ethanol.

Ethanol E85 is used in cars with compression ignition engine designed for this type of fuel and used in so called flexible fuel vehicles (FFV).
Test of Ethanol E85 acc. to STN P CEN/TS 15293

Property
Density at 15 °C
Oxidizing stability (inductive period)
Content of resin compounds after flushing
Corrosion on a copper plate (3 h at 50 °C)
Total acidity as acetic acid
Electric conductivity
Methanol content
Content of higher (C3-C5) saturated mono-alcohols
Content of ethers (5 and more carbon atoms)
Water content
Inorganic chlorine content
Copper content
Phosphorus content
Sulphur content
Sulphates content
Vapour pressure
Content of ethanol and higher saturated alcohols