制备过程对Robinia pseudoacacia木炭可燃性的影响及其结构性能关系
Lijuan Gao1,2, Xiaohua Ma1, Junxia Cheng2
1School of Health and Wellness, Nanchang Vocational University, Nanchang, 330007, Jiangxi, China.
Scientific reports
|April 25, 2025
概括
这项研究优化了Robinia pseudoacacia (RP) 木炭的生产,使其具有更高的燃烧效率. 在最佳条件下,可获得具有增强活性位点的木炭,高能效,以及与炭酸盐一起改进的联合燃烧点火.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 燃烧科学 燃烧科学
背景情况:
- 生物质木炭生产对于可持续能源至关重要.
- 了解木炭微观结构和燃烧特性之间的关系是优化其使用的关键.
- 罗比尼亚伪木 (RP) 树枝为木炭生产提供了潜在的原料.
研究的目的:
- 为了确定制备RP木炭的最佳条件.
- 分析在最佳条件下生产的RP木炭 (RPC) 的微观结构.
- 为了确定RPC微结构和燃烧性能指标之间的结构-属性关系.
主要方法:
- 在气氛中从RP树枝中制备木炭.
- 热解温度,加热速率和停留时间的优化.
- 使用元素分析,X射线衍射 (XRD) 和拉曼拟合的表征.
- 评价燃烧特征 (R0.5,Di,S,Fith,t<0xE2><0x82><0x9C>) 在与炭石的共同燃烧中.
主要成果:
- 最佳条件被确定为500°C的热解温度,4°C/分钟的加热速率和60分钟的停留时间.
- 优化的RPC展示了许多活跃站点,高无序性,大微晶体大小,最大活性和高能效.
- 在微观结构参数 (例如,晶体碳含量,异构原子含量,Lc,d002) 和燃烧指标 (R0.5,Di,S,Fith,t<0xE2><0x82><0x9C>) 之间建立了线性和抛物线性关系.
结论:
- 最佳的RP木炭制备增强了微观结构,从而提高了燃烧性能和能源效率.
- 异原子含量 (N,S) 对燃烧产生负面影响,而晶体碳含量和层间间距则对燃烧产生积极影响.
- 该研究提供了一种定量结构-属性关系,用于优化木炭燃烧特性.
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