合成三明治结构的石分子和它们对挥发性碳化合物的吸附性能
Tongyuan Liu1, Wenxing Qi1, Lihong Nie1
1School of Petrochemical and Environment, Zhejiang Ocean University, Zhoushan 316000, China.
Materials (Basel, Switzerland)
|May 7, 2025
概括
一种新型的三明治结构的化物分子 (SMZ) 有效地从液化石油气 (LPG) 中捕获挥发性有机化合物 (VOC). 这种耐用吸附剂显示出用于工业排放控制的高容量和可再生性.
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:
- 挥发性有机化合物 (VOC) 排放在原油储存和运输过程中带来了环境和安全挑战.
- 现有的吸附剂往往缺乏机械强度或最佳孔隙结构,以有效捕获VOC.
研究的目的:
- 开发和描述一种新型的三明治结构的化物分子 (SMZ),用于增强VOC吸附.
- 为了评估SMZ的性能,稳定性和水性,用于工业应用.
主要方法:
- 使用ZSM-5粉末和颗粒的压缩合工艺制造SMZ.
- 表面积,毛孔体积和毛孔结构的表征.
- 从液化石油气 (LPG) 中捕获气和n-butan的动态吸附-脱附循环试验.
- 评估热稳定性和疏水性.
主要成果:
- 优化的SMZ (在600°C和10%CMC下烧结) 的表面积为349.51 m2/g,孔积为0.37 cm3/g.
- 层次性孔隙系统显著改善了吸附动力学,实现了的127.6 mg/g和n-butan的118.2 mg/g.
- 与传统的单立式热带石相比,SMZ的吸附能力增加了106%,表现出卓越的性能.
- 在五个周期内保持高容量 (>95%) 和优异的疏水性 (的选择系数为20.9).
结论:
- 开发的SMZ提供了增强的机械强度和优化的孔结构,以有效地减轻VOC.
- SMZ为工业VOC排放控制提供了一个有前途,耐用和可再生的吸附剂.
- 这项研究为环境保护中先进的吸附剂设计提供了基础.
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