使用CO2和蒸汽激活焦炭罚款:优化和碳吸附剂的特征
Aigul T Ordabaeva1, Zainulla M Muldakhmetov1, Mazhit G Meiramov1
1Institute of Organic Synthesis and Chemistry of Coal of Kazakhstan Republic, Alikhanov Str., 1, Karaganda 100012, Kazakhstan.
Molecules (Basel, Switzerland)
|June 27, 2025
概括
研究人员利用用CO2和H2O激活的焦炭细优化了煤炭吸附剂的生产. 最佳条件产生了高吸附能力 (64.77%) 和432.6 m2 / g的表面积.
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.
- 环境科学 环境科学
背景情况:
- 煤吸附剂对于各种工业应用至关重要.
- 焦炭细是一种未充分利用的副产品,具有吸附剂生产的潜力.
- 激活过程是开发有效吸附剂材料的关键.
研究的目的:
- 为了研究从焦炭细中提取的碳吸附剂的特性.
- 为了确定最佳的激活条件 (温度,时间) 以提高吸附性能.
- 为高效的碳吸附剂生产开发一个工艺模型.
主要方法:
- 使用二氧化碳 (CO2) 和水蒸气 (H2O) 混合物激活焦炭细菌.
- 温度 (700-900°C) 和激活时间 (60-180分钟) 的实验变化.
- 对关键参数的分析:燃烧量,灰含量,散密度,吸附能力,孔腔体积和特定表面积.
主要成果:
- 的最佳吸收能力 (高达64.77%) 在800°C和120分钟的激活时间实现.
- 在最佳条件下,特定表面积达到大约432.6 m2/g.
- 较高的温度 (900°C) 降低了由于孔隙结构降解而导致的吸附;较长的激活增加了燃烧和灰含量.
结论:
- 建立了生产高性能煤炭吸附剂的最佳条件.
- 开发了一种工艺模型,用于高效合成这些碳吸附剂.
- 证明了活性焦炭细作为有效吸附剂材料的潜力.
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