The CO2 emissions from

our biodiesel are 91.7%

lower than conventional



Biodiesel Argent produces second-generation biodiesel of high quality, with major advantages for both the environment and performance.


The benefits of our biodiesel include: (1) the high-quality biodiesel (FAME) is produced in accordance with the European standard (EN 14214), (2) the reduced emission of greenhouse gases up to more than 91.7% for the entire production chain, in comparison to fossil fuels, (3) it’s suitable for all diesel engines and meets the requirements set by the automotive industry, (4) it yields better performance than conventional (first-generation) biodiesel and even better than most fossil fuels, (5) it’s produced from a fully-trackable supply chain of organic waste materials, (6) and the by-products from the production of biodiesel are converted into valuable end products such as bio heating oil, biofertiliser and bioglycerine.



Waste oils and fats contain free fatty acids, which can be converted to biodiesel using methanol. This process is an esterification, and occurs under acidic circumstances. That is why sulphuric acid is added to the reaction as a catalyst. Phase separation allows the water that is formed to be separated from the oil phase (the remainder of the raw material with biodiesel) and deployed for processing by-products. The product of the esterification is then a mixture of non-reacted raw material and biodiesel. This mixture then proceeds to the next reaction step.


The second important component of the raw material is glycerides. This can actually react to become biodiesel under basic conditions. Again, methanol is used for this. Potassium hydroxide (KOH) is added to create the basic conditions. Because a glyceride is already an ester, and a different ester (biodiesel) is created, this process is called a trans-esterification. The by-product of this reaction step is glycerine. Glycerine and biodiesel are separated in the reactor by phase separation. This is possible because biodiesel and glycerine do not mix well.


In this step the biodiesel phase from the trans-esterification is purified to a quality which meets the highest standards for biodiesel. This occurs through distillation (separation based on a difference in boiling point). This distillation occurs in a vacuum. The object here is to remove the heavy organic particles from the biodiesel. These particles form a stream which is called Bio Heating Oil (BHO). This stream can be used as a sustainable fuel for the generation of energy in the form of steam.


The by-products of the esterification (acid water) and the trans-esterification (glycerine phase) are mixed in this part of the process, yielding a mixture of solid matter and two fluids. These three are separated from each other with a type of centrifuge (tricanter). The oil part of the fluid phase is again deployed in the process. The watery fluid part (a mixture of glycerine, water and methanol) is separated further through two distillations. This produces three streams: raw glycerine, water and methanol, which can again be deployed in the process.

  • Crude biodiesel
    Distillation > 2G biodiesel in accordance with the EN14214 standard.


  • Bio glycerine
    Building block for a range of production processes.


  • Bio-heating oil
    Sustainable fuel which can be used to generate energy (heat).


  • Biofertilizer
    Used as an environmentally-friendly fertilizer for the agricultural sector.