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首页> 外文期刊>ACS Sustainable Chemistry & Engineering >Toward the Shell Biorefinery: Processing Crustacean Shell Waste Using Hot Water and Carbonic Acid
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Toward the Shell Biorefinery: Processing Crustacean Shell Waste Using Hot Water and Carbonic Acid

机译:朝向壳生物料理:使用热水和碳酸加工甲壳类壳废料

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摘要

Biomass fractionation is a prerequisite for almost any biorefinery process. Yet, a cost-effective and environmentally benign approach to separate biomass feedstock into valuable fractions remain a challenge. Herein we introduce a new fractionation method to extract high value chitin from crustacean shell (e.g., shrimp shell) using hot water for deproteinization and carbonic acid for demineralization (termed as the HOW-CA process). This method features high deproteinization and demineralization efficiencies (>90%), and the whole process is accomplished within hours. The desired final product chitin exhibits a high purity. This work addresses the major problems associated with the current industrial practice including the employment of corrosive reagents, the destructive removal of a useful component, and the generation of a large amount of waste. Economic and life-cycle analyses imply that the HOW-CA process is superior to the conventional method, offering both economic and environmental benefits.
机译:生物质分级是几乎任何生物遗料过程的先决条件。然而,将生物量原料分离成有价值的级分的成本效益和环境良性的方法仍然是挑战。在此,我们介绍一种新的分馏方法,以利用热水从甲壳类壳(例如,虾壳)中提取高价值甲壳素,用于脱蛋白和碳酸用于脱矿质(称为How-CA过程)。该方法具有高脱蛋白和脱矿质效率(> 90%),整个过程是在小时内完成的。所需的最终产物依托粘蛋白表现出高纯度。这项工作解决了与当前工业实践相关的主要问题,包括腐蚀性试剂的就业,破坏性去除有用的组成部分,以及产生大量废物的产生。经济和生命周期分析意味着如何加工过程优于传统方法,提供经济和环境效益。

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