Energetic assessment of bioethanol congruent dehydration process
2014
Bremers, G., Latvia Univ. of Agriculture, Jelgava (Latvia) | Rucins, A., Latvia Univ. of Agriculture, Jelgava (Latvia) | Zihmane-Ritina, K., Latvia Univ. of Agriculture, Jelgava (Latvia) | Birzietis, G., Latvia Univ. of Agriculture, Jelgava (Latvia) | Baltins, A., Latvia Univ. of Agriculture, Jelgava (Latvia) | Skele, A., Latvia Univ. of Agriculture, Jelgava (Latvia)
The aim of the research was to develop a new energy-saving bioethanol congruent dehydration technology and respective experimental facility. The developed technology is based on the bioethanol semi-dry congruent dehydration principle. As a result of the performed research an experimental facility for congruent dehydration of bioethanol was created and patented (European patent No. EP12160659.4.) by help of which several options of bioethanol dehydration were tested. As a result of the conducted research a scientifically justified new technology and technological equipment for bioethanol dehydration were obtained that allows saving up to 80 % of energy for the production of concentrated bioethanol. When doing the measurements and calculations of energy consumption of the technological cycle, it was discovered that application of the bioethanol congruent dehydration technology in the energy efficient variant ensures approximately 80 % of energy saving, in contrast to the traditional rectification method using the molecular sieve.
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