摘 要
在化学工程领域，质量传递现象是实现高效化学反应和过程控制的关键。文章详细讨论了质量传递的类型与机制，包括扩散传递、对流传质、界面传递以及复合传递机制。这些传递类型在不同化学工程过程中扮演着不同的角色，对过程效率有着直接影响。第四章分析了影响质量传递的各种因素，如温度、压力、流体动力学条件以及相间特性差异。这些因素的优化可以显著提高传质效率，是化学工程设计中的关键考虑点。第五章提供了质量传递的数学描述，包括质量守恒方程、Nernst-Planck方程、傅里叶-拉普拉斯方程以及数值模拟方法。这些数学工具为理解和预测质量传递现象提供了强有力的理论支持。第六章重点探讨了质量传递的强化策略，包括设计优化传递表面、强化混合与湍流、利用外部场增强传递以及采用新型材料与结构。这些策略旨在通过物理、化学或生物手段提高传质效率，降低能耗，实现过程的优化。
关键词：质量传递 化学工程 强化策略 数学描述
Abstract
In the field of chemical engineering, mass transfer phenomenon is the key to achieve efficient chemical reaction and process control. The types and mechanisms of mass transfer are discussed in detail, including diffusion transfer, convection transfer, interface transfer and composite transfer mechanisms. These transfer types play different roles in different chemical engineering processes and have a direct impact on process efficiency. In chapter 4, various factors affecting mass transfer, such as temperature, pressure, hydrodynamic conditions and interphase characteristic difference, are analyzed. The optimization of these factors can significantly improve the mass transfer efficiency and is a key consideration in chemical engineering design. Chapter 5 provides the mathematical desc ription of mass transfer, including mass conservation equation, Nernst-Planck equation, Fourier-Laplace equation and numerical simulation methods. These mathematical tools provide strong theoretical support for understanding and predicting mass transfer phenomena. Chapter 6 focuses on the enhancement strategies of mass transfer, including optimizing the transfer surface, enhancing mixing and turbulence, using external fields to enhance the transfer, and using new materials and structures. These strategies aim to improve mass transfer efficiency, reduce energy consumption, and optimize processes by physical, chemical, or biological means.
Keyword:Quality delivery Chemical engineering Reinforcement strategy Mathematical desc ription
目 录
1绪论 1
1.1研究背景及意义 1
1.2国内外研究现状 1
1.3研究目的 1
2质量传递现象概述 1
2.1质量传递的基本概念 1
2.2质量传递的重要性 2
2.3质量传递的基本原理 2
3质量传递的类型与机制 3
3.1扩散传递 3
3.2对流传质 3
3.3界面传递 4
3.4复合传递机制 4
4影响质量传递的因素 4
4.1温度的影响 4
4.2压力的影响 5
4.3流体动力学条件 5
4.4相间特性差异 5
5质量传递的数学描述 6
5.1质量守恒方程 6
5.2Nernst-Planck方程 6
5.3傅里叶-拉普拉斯方程 6
5.4数值模拟方法 6
6质量传递的强化策略 7
6.1设计优化传递表面 7
6.2强化混合与湍流 7
6.3利用外部场增强传递 7
6.4采用新型材料与结构 8
7结论 8
参考文献 9
致谢 10
