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首页> 外文会议>The 3rd international conference on engineering for waste and biomass valorisation. >FROM GRAPE MARC TO GRAPE SEED OIL BY SUPERCRITICAL TECHNOLOGY: A FEASIBILITY STUDY
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FROM GRAPE MARC TO GRAPE SEED OIL BY SUPERCRITICAL TECHNOLOGY: A FEASIBILITY STUDY

机译：超临界技术从葡萄籽油到葡萄籽油的可行性研究

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Exhausted grape marc is a waste produced by the distilling industries in the wine-producing regions, and its conversion into grape seed oil is already carried out, but not on a extensive scale: most of this marc remains and has to be treated somehow (landfill disposal, composting, field spreading, etc.). Moreover, none industrial plant is nowadays operative for the grape seed oil supercritical extraction: grape seed oil is extracted by means of solvents such as hexane or mechanically by pressure. The aim of this paper is to present the results of a study on the possible use of exhausted grape marc for obtaining grape seed oil by means of the supercritical technology. The idea was to treat an amount of exhausted grape marc corresponding to the production of a reference region in the north-east of Italy (15,000 ton/year), by processes in sequence such as drying, separation in its components, and finally seed oil extraction. A supercritical extraction plant has been designed capable to treat the amount of grape seed locally produced. The process scheme foresees three extractor vessels which allow operating in the counter-current mode, mandatory for industrial scale plants. The costs linked to the whole process (substrate conditioning and supercritical extraction) have been detailed. From this analysis a minimum price for the oil has been obtained which assures the economical sustainability of the process (5.5 euro/kg). The results obtained could be of international interest considering the volume of the worldwide production of exhausted grape marc and the interest towards emerging green technologies as the supercritical one.
机译：精疲力竭的葡萄渣是葡萄酒产区蒸馏工业产生的一种废物，已经将其转化为葡萄籽油，但规模不大：这种渣渣大部分仍然存在，必须以某种方式进行处理（垃圾填埋场）。处置，堆肥，田间传播等）。此外，如今没有一家工厂可用于葡萄籽油的超临界萃取：葡萄籽油是通过诸如己烷之类的溶剂萃取或通过压力机械萃取。本文的目的是提出一项研究结果，以研究利用超临界技术可能用尽的葡萄渣来获得葡萄籽油的方法。这个想法是通过依次干燥，分离其成分，最后制成种子油的方法，处理相当于意大利东北部一个参考地区生产的葡萄渣（15,000吨/年）。萃取。设计了一种超临界萃取设备，能够处理本地生产的葡萄籽量。该工艺方案预见了三个提取容器，这些提取容器允许以逆流模式运行，这对于工业规模的工厂而言是必需的。与整个过程（底物调节和超临界萃取）相关的成本已得到详细说明。通过该分析，获得了最低油价，可确保该工艺的经济可持续性（5.5欧元/千克）。考虑到世界范围内用尽的葡萄渣的产量以及将新兴的绿色技术作为超临界技术的兴趣，所获得的结果可能具有国际利益。

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