Dynamics of Continuous Countercurrent Mass-Transfer Processes

连续逆流传质过程的动力学

• 批准号: 8715263
• 负责人: Friedrich Helfferich
• 金额: $ 13.57万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-11-15 至 1991-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8715263&HistoricalAwards=false
• 关键词: Dynamics; Continuous; Countercurrent; Mass; Transfer

The proposed research is aimed at developing a theory for predicting the dynamic behavior of countercurrent mass-transfer columns. All previous models are aimed at predicting the steady-state behavior. The theoretical development will begin with a single component and with finite mass transfer rates to be followed by multicomponent mixtures. Experiments will be conducted on countercurrent packed-column extraction, with concentration disturbances. The effects of reflux on the column dynamics and on the stability will then be analyzed. The dynamic analysis results will be useful in process design and in the control of a host of countercurrent mass-transfer operations, such as distillation, adsorption, absorption, and extraction.

拟议的研究旨在开发一种理论，以预测反流质量转移柱的动态行为。 所有以前的模型旨在预测稳态行为。 理论发展将从单个组件开始，并以有限的传质速率进行多组分混合物。 实验将在逆流填充物提取上进行，并具有浓度干扰。 然后将分析反流对列动力学和稳定性的影响。 动态分析结果将在过程设计和控制许多逆流质量转移操作（例如蒸馏，吸附，吸收和提取）中有用。