水热炭的制备、结构特征和应用
Production, properties and environmental application of hydrochar
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摘要: 随着能源与资源的日益短缺，实现生物质的高效转化和利用尤为关键.水热炭化技术为实现生物质的高效资源化提供了契机，不同于传统的热化学处理方法（例如慢热解法），水热炭化法可以在不需要干燥预处理的情况下直接处理湿润的生物质原料且反应温度较低，近年来引起了学术界的极大关注.本文重点概述了水热炭的制备、材料结构功能特性以及在改变土壤性质、碳固定、污染修复等方面的应用进展，并总结了水热炭在当前研究过程中面临的挑战和需要重点关注的问题，力图为水热炭在农业上的应用和推广提供一定的思路.Abstract: With the shortage of energy and resources, it is critical to achieve the efficient transformation and utilization of biomasses. Hydrothermal carbonization technology (HTC) is a technique which can fulfill this goal. Unlike traditional thermo-chemical technologies (e.g., slow dry pyrolysis), HTC can process wet biomasses without any pre-drying treatment and requires relatively low reaction temperature, and thus has attracted considerable research attention in recent decades. This article reviewed the preparation, physicochemical properties of hydrochar, and summarized its major environmental applications such as soil properties madifications, carbon sequester, pollution rernediation and so on. Finally, main challenges for current research and potential issues which should be given further attentions were proposed. This study would shed some lights on the wider application of hydrochar in agriculture.
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Key words:
- hydrochar /
- preparation /
- properties /
- environmental application
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