Envien Group: producing biofuel from crops and used oil
Envien Group is a major company active in the production of biofuel.
It links up biofuel makers in Slovakia: one such company produces bioethanol from maize by fermentation, another makes biodiesel from rapeseed oil, used cooking oil and other oils using a transesterification process modified to FAME (Fatty Acid Methyl Ester), while a third makes rapeseed oil.
It's an efficient system organised by a group with an eye to the circular economy and the reuse of waste. Each of the companies in the Envien Group produces a biofuel component, with waste used for specific purposes, such as manufacturing pelleted animal feed or as a co-substrate for biogas production. The biofuel components are blended to obtain conventional mixtures of diesel and gasoline.
- Since 2007, the Envien Group has produced more than 1 million m3 of bioethanol, which has saved about 1 million tonnes of CO2 in comparison to petroleum
- Side-streams from production are used mainly for animal feed (pelleted feed in the form of Dried Distillers Grains with Solubles), or as a co-substrate for biogas production in biogas plants (lecithin sludge).