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摩洛哥阿尔法草的价值化通过 Pyrolytic 转化为大气CO2捕获的生物炭

Hicham Akaya¹, Zineb Ouzrour¹, Khalid Aziz¹

¹College of Chemical Sciences and Engineering (CCSE), Department of Materials Science, Energy and Nano-engineering, Mohammed VI Polytechnic University (UM6P), Lot 660-Hay Moulay Rachid, 43150 Benguerir, Morocco.

|January 8, 2026

概括

这项研究将阿尔法草转化为生物炭以捕获二氧化碳 (CO2). 在下的热解产生了优异的生物炭,证明了增强的二氧化碳吸收和有效的吸附动力学.

科学领域:

材料科学材料科学材料科学
环境科学环境科学
化学工程是化学工程的重要组成部分.

背景情况:

对像阿尔法草这样的农业废物进行价值化对于可持续材料开发至关重要.
生物炭生产为碳捕获和环境修复提供了一条途径.
为特定应用 (如二氧化碳捕获) 优化生物炭特性,需要进行详细的研究.

研究的目的:

为了研究从阿尔法草中生产生物炭以捕获二氧化碳.
为了将生物炭的特性与制备条件 (温度,大气) 相关联起来.
为了评估产生的生物炭的二氧化碳吸附性能和动力学.

主要方法:

阿尔法草生物炭是通过在300,400和500°C的管状 (N2) 和式 (空气) 炉中缓慢的热解生成的.
综合性表征包括FTIR,拉曼,SEM,TGA,BET,元素分析和密度测量.
在30°C和1bar的温度下进行了二氧化碳吸附实验,随后进行了运动分析.

主要成果:

在N2大气层下产生的生物炭表现出显著更高的二氧化碳吸收 (约. 与空气处理的生物炭相比,生物炭的使用量增加了34%).
最佳吸附性能与微孔,中孔和表面化学的相互作用有关,而不仅仅是表面积.
动力分析表明,选择的生物炭样品遵循了伪二次吸附模型 (R2 ≈ 0.99),这意味着快速吸附.

结论:

在下缓慢的热解是一种有效的方法,用于从阿尔法草中生产高性能二氧化碳捕获生物炭.
受热解条件影响的结构和化学特性是二氧化碳吸附能力的关键决定因素.
阿尔法草原衍生的生物炭显示出对高效和快速的二氧化碳捕获应用的希望.

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