Ethanol dryers

The right dryer is key to getting the best value out of your product.
Swedish Exergy dryers helps our client achieve the best value for their application.

What is ethanol?

Ethanol, also called alcohol, is an organic chemical compound produced from biomass. It is produced by fermentation of different crops, mostly sugarcane or corn. There are many uses for ethanol but the largest single use for it is as a bioethanol, a type of biofuel.

Bioethanol is a renewable source of energy and can technically be used as transportation fuel as is, but is more often used as a gasoline additive. It has a higher octane number than gasoline and is therefore less sensitive to explosion as it can withstand more compression, leading to an increase in the thermal efficiency.

In addition to fuel, it can be produced with the purpose to be consumed as “drinking alcohol”. Fermenting certain crops creates ethanol that then can be distilled to produce liquors like vodka or whiskey.

Residues and energy

The production of ethanol creates a byproduct called distillers grains. It is an excellent source of protein and energy and is often used as animal feed.

The distillation, evaporation and drying are heavily energy consuming tasks and are the main operating cost. By using steam drying for the solids and vapours from the dryer for the evaporators, the total energy consumption for the ethanol production can be reduced by 30-40%.

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