Reaction Coupled Transport and Hydrodynamics in a Phase Transfer Catalysis

相转移催化中的反应耦合传递和流体动力学

• 批准号: 8616201
• 负责人: Joe Goddard
• 金额: $ 10.4万
• 依托单位: University of Southern California
• 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: 1987-02-01 至 1989-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8616201&HistoricalAwards=false
• 关键词: Reaction; Coupled; Transport; Hydrodynamics; Phase

This project is an investigation of reaction-coupled transport associated with PTC (phase-transfer catalysis). The general objectives are to develop and employ novel contacting devices, based on rotating-disk hydrodynamics, to investigate the chemical-kinetic and transport mechanisms which govern the rate of PTC. Specific projects are: 1) to continue current studies of solid-liquid PTC over a rotating disk 2) to develop a novel fluid-fluid contacting device, for which a theory is already worked out, and to employ it to investigate liquid-liquid PTC, and 3) to carry out several exploratory studies of novel applications and membrane-based energy transduction based on PTC. To date, PTC has been studied mainly by chemists, who have now discovered hundreds of new organic synthesis having potential industrial importance. At present, not enough quantitative knowledge is available on chemical mechanisms and rates to allow for systematic chemical-reaction engineering and scale-up of PTC systems. The novelty in this approach resides in the development and use of contacting devices with hydrodynamically variable mass transfer characteristics to study PTC kinetics and mass transfer. The proposed research is expected to have an impact on 1) the basic scientific understanding of PTC, 2) the reaction engineering and scale-up of PTC reactions, and 3) new applications of PTC to the coupling of reaction and transport processes ("phoretochemistry"). In addition, the proposed development of a novel fluid-fluid contacting device with uniform interface would contribute to numerous other branches of physicochemical hydrodynamics.

该项目是对与 PTC（相转移催化）相关的反应耦合传输的研究。 总体目标是开发和采用基于转盘流体动力学的新型接触装置，以研究控制 PTC 速率的化学动力学和传输机制。 具体项目是：1）继续当前对转盘上的固-液PTC的研究；2）开发一种新型的流体-流体接触装置，其理论已经制定，并用它来研究液-液PTC；3）对基于PTC的新颖应用和基于膜的能量转换进行一些探索性研究。 迄今为止，PTC 主要由化学家进行研究，他们现已发现了数百种具有潜在工业重要性的新有机合成。 目前，关于化学机制和速率的定量知识还不足以进行系统的化学反应工程和 PTC 系统的放大。 该方法的新颖之处在于开发和使用具有流体动力学可变传质特性的接触装置来研究 PTC 动力学和传质。 拟议的研究预计将影响 1) 对 PTC 的基本科学理解，2) PTC 反应的反应工程和放大，以及 3) PTC 在反应和传输过程耦合（“电泳化学”）方面的新应用。 此外，所提出的具有均匀界面的新型流体-流体接触装置的开发将有助于物理化学流体动力学的许多其他分支。