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https://open.uns.ac.rs/handle/123456789/13582
Назив: | The bioethanol production with the thin stillage recirculation | Аутори: | Pejin, Dušanka Mojović, Ljiljana Grujić, Olgica Pejin, Jelena Rakin, Marica |
Датум издавања: | 1-јан-2009 | Издавач: | Belgrade: Association of the Chemical Engineers of Serbia | Часопис: | Chemical Industry and Chemical Engineering Quarterly | Сажетак: | In this paper, the bioethanol production with the thin stillage recirculation in mashing was investigated. The mashing was performed with recirculation of: 0, 10, 20 and 30 % of the thin stillage. The thin stillage recirculation was repeated six times. In the experiment without the thin stillage, the recirculation bioethanol yield (compared to the theoretical yield) was 97.96 %, which implicates that the experiment conditions were chosen and performed well. With the addition of the thin stillage, the bioethanol yield increased and was above 100 %. Higher bioethanol yield than 100 % can be explained by the fact that the thin stillage contains carbohydrates, amino acids and yeast cells degradation products. The bioethanol yield increased with the increased number of thin stillage recirculation cycles. Dry matter content in fermenting slurry increased with the increased thin stillage quantity and the number of the thin stillage recirculation cycles (8.04 % for the first and 9.40 % for the sixth cycle). Dry matter content in thin stillage increased with the increased thin stillage quantity and the number of thin stillage recirculation cycles. Based on the obtained results it can be concluded that thin stillage recirculation increased the bioethanol yield. The highest bioethanol yields were obtained with recirculation of 10% thin stillage. | URI: | https://open.uns.ac.rs/handle/123456789/13582 | ISSN: | 14519372 | DOI: | 10.2298/CICEQ0901049P |
Налази се у колекцијама: | TF Publikacije/Publications |
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