Commission Regulation (EC) No 92/2005 (repealed)Show full title

1. Biodiesel production means treatment of the fat fraction of animal by-products (animal fat) under the following conditions:

(a)

The fat fraction of animal by-products is first processed using:

(i)

processing method 1 as referred to in Annex V, Chapter III of Regulation (EC) No 1774/2002 in case of Category 1 or 2 materials; and

(ii)

any of the processing methods 1 to 5 or 7 or, in the case of material derived from fish, method 6 as referred to in Annex V, Chapter III of Regulation (EC) No 1774/2002 in case of Category 3 materials;

(b)

The processed fat is separated from the protein and insoluble impurities are removed to a level not exceeding 0,15 % in weight, and subsequently submitted to esterfication and transesterfication. However, esterfication is not required for Category 3 processed fat. For esterfication the pH is reduced to less than 1 by adding sulphuric acid (H₂SO₄; 1,2-2 molar) or an equivalent acid and the mixture is heated to 72 °C for 2 hours during which it is intensely mixed. Transesterfication shall be carried out by increasing the pH to about 14 with 15 % potassium hydroxide (KOH; 1-3 molar) or with an equivalent base at 35 °C to 50 °C for at least 15 to 30 minutes. Transesterfication shall be carried out twice under the conditions described above using a new base solution. This process is followed by refinement of the products including vacuum distillation at 150 °C, leading to biodiesel;

(c)

In case of biodiesel resulting from the treatment of Category 1 material an appropriate gas clean-up system shall be in place to exclude emission of possible non-combusted protein residues when the biodiesel is combusted.