Rate-Based Heterogeneous Separation Process Calculations

CTS-9526052 拉克希米·斯里达尔 波多黎各大学 摘要 该研究将侧重于开发一个基于速率的非平衡分离模型，该模型将处理多个液相。 的主要动机源于非理想精馏采用非平衡模型的优点，并需要将非均相混合物的稳定性检查。 将使用切平面标准确定稳定性。 基于速率的分离计算将采用严格获得的传质系数。 新的模型将不假设阶段之间的平衡，因此代表真实的情况比理想的平衡阶段模型。 这些结果可能使商业过程模拟器能够解决涉及非均相混合物（如乙醇、苯和水）的分离问题。 特别是，有可能对蒸馏塔的设计和优化产生重大影响。

CTS-9526052 Lakshmi Sridhar University of Puerto Rico ABSTRACT The research will focus on developing a rate-based model for non-equilibrium separations that will handle multiple liquid phases. The primary motivation stems form the advantages of employing non-equilibrium models for nonideal distillation, and the need for incorporating stability checks for heterogeneous mixtures. Stability will be determined using tangent plane criterion. Rate-based separation calculations will employ rigorously obtained mass transfer coefficients. The new model will not assume equilibrium between phases and therefore represents real situations better than the ideal equilibrium-stage model. The results may enable commercial process simulators to solve separation problems involving heterogeneous mixtures like ethanol, benzene and water. In particular, there is potential for significant impact on the design and optimization of distillation columns.