Energy need to produce DDGS?

Question

I want to know normally, how many ton steam and electrical need to produce 1 ton DDGS in ethanol plant(energy need to supply to Evaporator, dryers...)

Thanks so much

Answer 1

When alcohol and water are vaporised together in cold air, the cold air alone provides the energy required to evaporate.

Then, if the vapour is refrigerated, so that liquid condenses from the gas, we get energy delivered to the refrigerator coils from the condensation.

The design of this process can produce a net output of energy only by cooling the already cold air, but it is done.