Danish bioethanol can output twice the energy used to make it, says report  

2006.04.24
A new analysis from the Danish Royal Veterinary and Agricultural University and Elsam shows that bioethanol has a positive energy balance, provided it is produced in connection with a power station

A new analysis from the Danish Royal Veterinary and Agricultural University and Elsam shows that bioethanol produced from straw and winter wheat grains can output at least twice as much energy as is used to make it, provided that it is produced in connection with an existing power station.

The analysis calculates for the first time the energy balance of Danish production of bioethanol using second generation technology, and shows far more positive results than many of the energy balance calculations from other countries. The authors of the report ascribe this to the significantly greater efficacy of the second generation bioethanol production process.

Professor Claus Felby of the Danish Royal Veterinary and Agricultural University comments: "We can document that the production of bioethanol in Denmark is sensible from an energy perspective in relation to Danish agricultural practices and the latest bioethanol process technology." Prof. Felby emphasises that all the calculations are based on actual measurements and results from pilot scale and full scale plant operation.

Second generation bioethanol plants can use both the easily-converted polysaccharides in wheat grains and the more difficult-to-access starch in straw. The energy accounting includes energy use for cultivation, production and application of fertilizer, chalk and manure, as well as harvesting and transport to the plant. The energy used to manufacture the agricultural machinery and to build the ethanol plant is also accounted together with energy used in the bioethanol process itself.

The output side of the equation includes the by-products of bioethanol production: food proteins, molasses, clean CO2 and biomass which can be used as fuel in the power station. The news is reported by Industriens Dagblad.

Next step

Explore business cases

Please contact me

Name
Company
E-mail
Phone
How can we help you?

IDK
We use cookies to make the website perform optimally. You accept cookies by closing the box or continuing to use the website. Click here to read more about cookies. ×