Study of the adsorption and desorption of multiple adsorbates in a fixed bed
Study of the adsorption and desorption of multiple adsorbates in a fixed bed
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固定床中多种吸附物吸附与解吸的研究
DOI：
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发表时间：
1988
期刊：
影响因子：
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通讯作者：
J. Fair
中科院分区：
文献类型：
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作者：
Chen‐Chia Huang;J. Fair
本文对乙烷/丙烷混合气体在氮气或氦气中的吸附进行了实验和理论研究。该研究还包括使用热氮气或氦气吹扫的混合物的解吸。吸附剂为Witco JXC活性炭。一个非平衡，机械模型的开发，并表示吸附和解吸过程。该模型利用Flory Huggins形式的空位溶液模型预测的混合物等温线数据。吸附和热吹扫再生被发现是颗粒内速率控制的过程，与表面扩散占主导地位的颗粒内传质机制。该动力学模型可用于模拟各种商业吸附和解吸条件。
An experimental and theoretical study was made of the adsorption of ethane/propane mixtures from nitrogen or helium. The study also covered the desorption of the mixtures using a purge of hot nitrogen or helium. The adsorbent was Witco JXC activated carbon. A nonequilibrium, mechanistic model was developed and was shown to represent both adsorption and desorption processes. The model utilized mixture isotherm data predicted by the Flory Huggins form of the vacancy solution model. Both adsorption and hot purge regeneration were found to be intraparticle rate controlled processes, with surface diffusion dominating the intraparticle mass transfer mechanism. The dynamic model can be used for the simulation of a variety of commercial adsorption and desorption conditions.