The outputs of the pre-treatment process are proteins, wastewater and clean fish oil (see FISH WASTES TO FISH OIL).
Figure 1: Biodiesel fabrication inputs and outputs at Hiep Thanh Seafood
The fish oil is transformed into biodiesel, whereas the protein is refined for end uses (see BY-PRODUCTS) and waste water treated in a Waste Water Treatment Plant (WWTP) and led out into the river. The PRESECO Fish Power process complies with the local waste management regulations.
Figure 2: PRESECO biodiesel processor 5800
Biodiesel is a fatty acid methyl ester (FAME). It is produced from a chemical reaction called transesterification. When entering the biodiesel processor, the raw material is heated up to 40-50 degrees Celsius. During heating, methanol is mixed effectively with the catalyst for the trans-esterification operation.
The biodiesel processor 5800 is an automatic unit that can process up to 16,000 litres of oil per day. With Processor automation the operational costs are kept to a minimum. The biodiesel processor is an eco-friendly option with high-quality design.
The biodiesel processor requires very little energy to run, but produces a high quality biofuel out of the local raw material. The closed system guarantees a very safe odour-free process and a user-friendly environment.
After the processor, biodiesel is ready for utilization as an engine fuel.
Figure 2: biodiesel pump at a Finnish plant
Main differences between biofuels and fossil fuels are marked in green
It is recommended to blend biodiesel with fossil diesel at low temperature season
The maximum storage time is 6 months