化工原理第5章传质过程与塔设备（Chemical principles chapter 5 mass transfer process and tower equipment）.docVIP

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化工原理第5章传质过程与塔设备（Chemical principles chapter 5 mass transfer process and tower equipment）.doc

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化工原理第5章传质过程与塔设备（Chemical principles chapter 5 mass transfer process and tower equipment）

化工原理第5章传质过程与塔设备（Chemical principles chapter 5 mass transfer process and tower equipment） This article is contributed by 873160059 The PPT document may not have a good browsing experience at the WAP end. It is recommended that you choose TXT, or download the source file to the native view. Chapter v mass transfer process and tower equipment The main points of this chapter: The calculation of the absorption rate of the absorption rate of the gas-liquid phase equilibrium transfer mechanism of the absorption process: the calculation of material balance, the amount of absorbent, the diameter of the tower and the height of the filler layer Chapter v mass transfer process and tower equipment The calculation of absorption and absorption of gas in mass transfer process Introduction to mass transfer process Mass transfer process is the process of mass transfer. Mass transfer process is the process of mass transfer. Single word quality Only occurs in a phase of mass transfer and mass transfer Through the phase interface in mass transfer process Common mass transfer process Mass transfer process of the direction of the mass transfer process and mass transfer rate limit Common mass transfer equipment Common mass transfer process Dissolution, crystallization drying, adsorption absorption, distillation, rectification extraction liquid - solid gas - solid - liquid - liquid In single-phase system, the transmission mode of matter: diffusion The diffusion of the molecules diffuses the material from the high concentration to low concentration of the fluid through the turbulent and eddy currents, and the material is transferred from a high concentration to a low concentration Interphase mass transfer A phase - phase diffusion phase interface diffusion phase Gas absorption The other phase is diffused Direction of mass transfer: taking ammonia absorption as an example Ammonia gas (low concentration) + air Mass transfer limit: phase equilibrium Sealed container water (solvent) In the distr