ADSORPTION OF VAPOR MIXTURES ONTO ACTIVATED CARBON

复杂的工业环境通常含有大量的有机蒸气 和一定范围的相对湿度。 不可能通过实验 确定呼吸器的突破性能， 蒸汽混合物的组合。 基本理解本 需要蒸汽混合物吸附的物理化学相互作用， 为了正确地模拟活性炭床行为，需要。 数据 将被用来评估和修改现有的 呼吸器使用寿命模型。 这些调查的目的是评估吸附的有机 蒸汽混合物上的活性炭。 实验旨在 评价吸附平衡和动力学。 二元蒸汽混合物 含有各种不同的极性和官能团， 将评估三种不同的湿度。 将对数据进行分析 使用Dubinin平衡模型和惠勒动力学的参数 模型 这些参数包括，平衡吸附亲和力 以及动力学速率常数和容量。 还提出了使用硅胶的吸附研究。 吸附到 硅胶，一种极性吸附剂，将有助于确定极性的作用 吸附力，并评估硅胶作为 吸附剂 该项目的成功完成将提供一个更基本的 理解复杂有机蒸气混合物吸附到 活性炭和硅胶。

Complex industrial environments typically contain numerous organic vapors and a range of relative humidities. It is not possible to experimentally determine respirator breakthrough performance for every possible combination of vapor mixtures. A fundamental understanding of the physicochemical interaction of adsorption of vapor mixtures is needed is needed in order to properly model activated carbon bed behavior. Data generated by this proposal will be used to evaluate and modify existing respirator service-life models. The purpose of these investigations is to evaluate adsorption of organic vapor mixtures onto activated carbon. Experiments are designed to evaluate adsorption equilibria and kinetics. Binary vapor mixtures containing a variety of different polarities and functional groups at three different humidities will evaluated. The data will be analyzed using parameters of the Dubinin equilibrium model and the Wheeler kinetic model. These parameters include, equilibrium adsorption affinity coefficients and capacities and kinetic rate constants and capacities. Adsorption studies using silica gel are also proposed. Adsorption onto silica gel, a polar adsorbent, will help to determine the role of polar forces in adsorption and to evaluate the suitability of silica gel as an adsorbent. Successful completion of this project will provide a more fundamental understanding of adsorption of complex organic vapor mixtures onto activated carbon and silica gel.