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通过农业垃圾的形态和化学转化,对基于碳的多孔生物燃料进行 Torrefaction 的解释
Hina Mukhtar1, Nehar Ullah2, Mohammad Younas2
1Department of Chemical Engineering, NFC Institute of Engineering & Fertilizer Research, 38090 Faisalabad, Pakistan; Department of Chemical Engineering, University of Engineering and Technology, Lahore 54890, Pakistan.
Ecotoxicology and environmental safety
|September 8, 2023
概括
农业废弃的玉米和大米被热成高能量生物燃料. 这一过程提高了孔隙性,表面积和碳含量,降低了运输成本.
科学领域:
- 材料科学 材料科学 材料科学
- 可再生能源可再生能源是可再生能源.
- 生物质转换生物质转换
背景情况:
- 农业废弃物,如玉米 (CC) 和大米 (RH) 等纤维纤维素材料,存在处理方面的挑战.
- 农业废物转化为生物燃料对可持续能源生产至关重要.
- 造是一种有前途的热化学转化工艺,用于生物质提升.
研究的目的:
- 为了研究用于生物燃料生产的CC和RH的热化.
- 描述化生物燃料的结构,表面积和化学特性.
- 评估化生物质作为能源密集燃料来源的潜力.
主要方法:
- 在60分钟内在200-300°C的温度下对CC和RH进行热化.
- 扫描电子显微镜 (SEM) 用于结构分析.
- 布鲁努埃尔-埃梅特-泰勒 (BET) 分析用于表面积和孔隙体积的确定.
- 用于化学转化评估的结晶度指数和O/C比率分析.
主要成果:
- 在250-300°C的化生产的生物燃料具有更高的孔隙性,表面积 (CC: 1.19-2.87 m2 g−1,RH: 1.22-2.67 m2 g−1) 和孔隙体积 (CC: 1.23-2.81 ×10−3 m3 g−1,RH: 1.46-2.58 ×10−3 m3 g−1).
- 碳含量升级至94%,氧和含量显著降低.
- 在300°C时,氨酸巨分子的转化率为CC达到63%,为RH达到47%.
- 化生物燃料在氧化热解过程中表现出更好的热稳定性和更高的转化率.
结论:
- 热化有效地将CC和RH农业废物转化为能量密集的生物燃料.
- 该过程增强了诸如孔隙性,表面积和碳含量等关键性质,使它们适合能源应用.
- 烧焦生物燃料的散装密度降低和纤维结构分解导致运输成本降低,提高整体经济可行性.
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