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首页> 外文会议>International Symposium on Supercritical Fluids Tome 1: Natural Products, Process amp; Equipment Development; 20030428-20030430; Versailles; FR >PROCESSING OF CASHEW NUT (Anacardium occidentale L.) AND CASHEW NUT SHELL LIQUID WITH SUPERCRITICAL CARBON DIOXIDE AND WATER
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PROCESSING OF CASHEW NUT (Anacardium occidentale L.) AND CASHEW NUT SHELL LIQUID WITH SUPERCRITICAL CARBON DIOXIDE AND WATER

机译：超临界二氧化碳和水对贝壳头坚果（Anacardium occidentale L.）和贝壳头坚果壳液的加工

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摘要

In this work, our objective was to examine methods for processing cashew nut shell liquid and cashew shell with carbon dioxide and water. Supercritical CO2 was applied for extraction of split cashew shells and near-critical water was applied for reaction of the cashew shell material. In the extractions, it was found that a pressurization-depressurization step that was approximately 1 h gave extraction yields as high as 60%. Extraction of ground shell material gaved extraction yields as high as 90%. Composition of the extracted CNSL showed that it was similar to expressed oil so that it can be concluded that extraction with supercritical CO_2 leads to an oil of high quality. Reaction of the shell material in near-critical water with a diamond-anvil cell technique showed that the material could be liquefied at 334℃ and that the liquefaction products dissolved into water at about 358℃. From these results, it can be concluded that CO_2 and water can be used to extract CNSL and process cashew shell material for the purpose of developing a new green chemical process.
机译：在这项工作中，我们的目标是研究用二氧化碳和水处理腰果壳液体和腰果壳的方法。将超临界CO2用于提取腰果壳，将近临界水用于腰果材料的反应。在提取中，发现大约1小时的加压-减压步骤给出了高达60％的提取产率。提取外壳材料可得到高达90％的提取率。提取的CNSL的组成表明，它与所表达的油相似，因此可以得出结论，用超临界CO_2提取可得到高质量的油。壳材料在近临界水中与金刚石-砧池技术反应表明，该材料可在334℃液化，液化产物在约358℃时溶解在水中。从这些结果可以得出结论，为了开发新的绿色化学方法，可以使用CO_2和水提取CNSL和加工腰果壳材料。

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