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化工进展  2015 

木炭生产技术研究进展

DOI: 10.16085/j.issn.1000-6613.2015.08.015, PP. 3003-3008

Keywords: 木炭,炭化工艺,生产设备,生物质,热解,再生能源

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Abstract:

木炭作为一种重要的生产、生活原料,在工业生产和家庭生活中应用广泛。现有的木炭生产技术主要有内热式炭化、外热式炭化和循环气流加热式炭化技术,本文概述了3种炭化技术与设备的研发现状,并总结了炭化工艺改进的理论研究进展长低温停留时间,然后快速升温到高温段保温的加热工艺有利于提高木炭产率和品质,同时节省炭化时间和能量;适当提高原料湿度和炭化压力将促进木材热解,增大压力还能提高木炭得率;减小原料尺寸可以提升炭化速率,但会使得炭得率降低。最后指出当前国内木炭生产主要存在工业化水平低、理论研究滞后和缺乏相关的生产使用标准等问题,未来的木炭生产将沿着工业化、高效化和标准化方向发展。

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