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BIODIESEL

BIODIESEL

BIODIESEL

Bio Diesel is renewable biofuel formed by long-chain fatty acid methyl or ethyl esters. If the esters that compose the biodiesel are methylic, they are called FAME (Fatty acid methyl ester). It is obtained through the chemical reaction of methanol (or bioethanol) with vegetable oils (rape, sunflower, soy, palm). It does not contain sulfur and, compared to oil-derived diesel, greenhouse gas emissions are reduced (including CO2), as well as carbon monoxide (CO) emissions and emissions of particles and other polluting products.

Biodiesel can be used as a fuel for vehicles in its pure form, but it is usually used as a diesel additive to reduce levels of particulates, carbon monoxide, and hydrocarbons from diesel-powered vehicles.

BIODIESEL

Constituent Specifications
Density, Kg / m 3 2005  860 – 900
sEster Content, % min. 96.5
Flash point (closed cup), °C 120
Water and sediment, mg / Kg, max. 500
Kinematic viscosity at 40°C, mm2 /s 2.5-6.0
Oxidation Stability at 110°C, hours min. 6
Ramsbottom carbon residue, % mass, max. 0.05
Sulfated ash% mass, max. 0.02
Sulfur, mg / Kg max 50
Copper strip corrosion 3 hrs. 50°C Class 1
Cetane Number, min. 51
Acid number, mg KOH/g, max. 0.50
Methanol or Ethanol, % m/m, max 0.2
Free glycerin, % mass 0.020
Total glycerine (free glycerine and unconverted glycerides combined), % by mass, max. 0.25
Group I Metal (Na+K), mg/Kg, max 5
Group II Metal (Ca+Mg), mg/Kg, max 5
Phosphorus content, mg/Kg, max 10