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首页> 外文期刊>International Journal of Photochemistry and Photobiology >Utilization of Mash Treatment Unit for Sterilization and Clarification of Final Molasses in Ethanol Plant
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Utilization of Mash Treatment Unit for Sterilization and Clarification of Final Molasses in Ethanol Plant

机译：利用沼气处理装置对乙醇厂中的最终糖蜜进行灭菌和澄清

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The study aimed to determine the effect of sterilization treatment of molasses in ethanol industry in terms of increased production, reduced operating costs and maintenance, through introducing of a specialized unit to enhance the purification and sterilization of molasses, as well as, taking the advantage of high vinasses temperature (a by-product in the ethanol industry) as a source of heat instead of steam, and lowered temperatures of beer as a source for partial cooling. This study depended on scientific experimentation in lab conditions to measure the value of (brix, pH and temperature) as the main primary data collection. The verification of the results was done through the work of two models for the production of ethanol using treated molasses as first model and non treated molasses as second model. Thereafter, the percentage of ethanol production was determined as well as the number of yeasts in both models. Moreover, the difference between the two models was spotted as well. In addition to that, the two models which have been implemented by controlling the values of brix, pH, and temperature and fermentation period in order to determine the optimum and best values that would give higher and better productivity of ethanol and a greater number of yeast. Results showed that the optimum values were found at 21 brix, pH 5, at 30℃ temperature, which gave the highest ethanol production, which was 8.1%, 6.7% and 6.4% respectively, when using molasses without treatment and 8.98%, 7.7%, and 7.3% respectively when using treated molasses with a period of fermentation 48 hours in all cases. Also on the other hand and regarding the yeast growth the results showed that the optimum values were found at 18-19 brix, pH 5, at 30℃ temperature, which gave the highest growth of yeast cell count, where it was 13.86×10~7, 9.96×10~7 and 9.16×10~7 respectively, when using molasses without treatment and 14.91×10~7, 10.09×10~7 and 9.21×10~7 when using treated molasses with a period of fermentation 24 hours in all cases. It is recommended to establish a specific treatment unit for the molasses so as to achieve greater productivity of ethanol and to adjust the brix value at 21%, temperature at 30℃, pH at 5 and the period of fermentation should be 48 hours.
机译：该研究旨在通过引入专门的装置来增强糖蜜的纯化和灭菌，并利用乙醇的优势，确定乙醇工业中糖蜜的灭菌处理对提高产量，降低运营成本和维护的影响。酒窖温度高（乙醇行业的副产品）作为热源代替了蒸汽，降低了啤酒的温度作为部分冷却的源。这项研究取决于实验室条件下的科学实验，以测量（白利糖度，pH和温度）值作为主要的主要数据收集。通过使用处理糖蜜作为第一模型和未处理糖蜜作为第二模型的两个用于生产乙醇的模型来完成对结果的验证。此后，确定两种模型中乙醇的产生百分比以及酵母数。此外，两个模型之间的差异也被发现。除此之外，通过控制白利糖度，pH值，温度和发酵时间实现了两个模型，以确定最佳和最佳值，这些最佳和最佳值将提供越来越高的乙醇生产率和更多数量的酵母。结果表明，最佳糖度是在21糖度，pH 5、30℃温度下找到的最佳值，当不使用糖蜜处理时，乙醇的产量最高，分别为8.1％，6.7％和6.4％，分别为8.98％，7.7％。在所有情况下，如果使用经过处理的糖蜜并发酵48小时，则分别为7.3％和7.3％。另一方面，关于酵母的生长，结果表明，在pH 30的18-19糖度下，在30℃的温度下发现了最佳值，这使酵母细胞的生长达到最高，为13.86×10〜。在不加糖蜜的情况下使用未经处理的糖蜜分别为7、9.96×10〜7和9.16×10〜7，而在经过发酵24小时的糖蜜处理中使用糖蜜则分别为14.91×10〜7、10.09×10〜7和9.21×10〜7。所有情况。建议建立专门的糖蜜处理装置，以提高乙醇的生产率，并将白利糖度值调整为21％，将温度调整为30℃，将pH调整为5，发酵时间应为48小时。

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