Development, Construction, and Operation of a Multisample Volumetric Apparatus for the Study of Gas Adsorption Equilibrium.
Development, Construction, and Operation of a Multisample Volumetric Apparatus for the Study of Gas Adsorption Equilibrium.
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用于气体吸附平衡研究的多样品容量装置的开发、构建和操作。
DOI：
10.1021/ed500633h
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发表时间：
2015
影响因子：
3
通讯作者：
J. Mota
中科院分区：
文献类型：
--
作者：
R. Ribeiro;Ricardo J. S. Silva;I. Esteves;J. Mota
一个简单的容积式吸附装置的建设是突出的。该装置是廉价的，并提供了一个明确的演示气相吸附的概念。本课题适合于化学、化工类本科生。此外，该装置还可以提供定量数据，供年轻研究人员筛选不同吸附材料对各种气体的吸附能力。开发了一个基于Labview的界面，允许学生执行自动数据采集和单元控制。实验室设置允许同时测量两个吸附剂样品上的气体吸附平衡，在宽的温度范围（303-1373 K）高达20巴。通过与高精度重量分析仪上记录的吸附等温线进行比较，验证了所获得的数据的质量。为此目的，二氧化碳（CO2）在303和353 K和氮气（N2）在323 K的吸附平衡上的金属氧化物的商业样品记录。
The construction of a simple volumetric adsorption apparatus is highlighted. The setup is inexpensive and provides a clear demonstration of gas phase adsorption concepts. The topic is suitable for undergraduate chemistry and chemical engineering students. Moreover, this unit can also provide quantitative data that can be used by young researchers to screen the adsorption capacity of different adsorbent materials for various gases. A Labview-based interface was developed to allow the students to perform automated data acquisition and unit control. The laboratorial setup permits the simultaneous measurement of gas adsorption equilibrium on two adsorbent samples, up to 20 bar over a wide temperature range (303–1373 K). The quality of the obtained data was validated by comparison with adsorption isotherms recorded on a high-precision gravimetric apparatus. For this purpose, adsorption equilibria of carbon dioxide (CO2) at 303 and 353 K and nitrogen (N2) at 323 K were recorded on a commercial sample of metal–o...