The words of our chancellor still ring in our ears: Until 2020, the share of renewable energies should reach 20% of our total energy demand of fossil fuels.
Bioethanol will take a central role in this process, which is why we’re proud to be able to offer our customers energy saving, highly customized, plug-and-play bioethanol plants – all in accordance with current technological and political trends.
Cereal grains are milled under wet conditions, mixed with water and amylase enzymes and then heated up to turn all contained starch to sugar. The then-called mash is infused with yeast, to induce an alcoholic fermentation process of the sugar, after which the ethanol is separated from the fermented mash via distillation process. Lastly, the ethanol-water mix is dehydrated, which yields bioethanol, the final product.
Raw Materials & Products
Base materials can be starchy crops, such as wheat, triticale, rye or corn. Preferred are those with high starch levels, combined with low levels of proteins, for maximum yield.
A byproduct, produced next to the high quality bioethanol, is the slop, which can be drained from the sump of the distillation column and then processed into high-grade animal feed, both in fresh and dried, stable form (Distiller’s dried grains with solubles – DDGS).
It is also possible to use the slop as a substrate for biogas plants.
Further parts include ethanol storage tanks, cooling tower systems for process water treatment and potentially a decantation mechanism for further processing of the slop.