Chemical Engineering Second Semester

Unit Operation Principle of chemical engineering Operation process

( fluid flow ) Crude material Reaction ( heat transfer) chemical process separation processes products by products refinery purification pure

 Fluid dynamics: principle of momentum  Heat transfer: principle of energy  Mass transfer: principle of mass types of process: Obey conservation laws

Fluid flow: Flow of fluids,flow in pipes and channels. Energy and momentum relationships. Pumping of fluids Filtration and gravity separators Sedimentation: centrifugal separators Motion of particles in a fluid.Flow of fluids through granular beds and packed beds.

Heat transfer: conduction By convection radiation Mechanism of heat transfer Film coefficients and heat transfer coefficients. Shell and tube exchangers, the condensation of vapors and boiling liquids.

Mass transfer unit operation:separation  Distillation (l--v)  Absorption( 吸收 ) （ adsorption 吸附） (v--l)  Liquid—liquid extraction (l--l)  Drying (s—v)  Evaporation  Filtration  Gas cleaning  Sedimentation  crystallization

Chapters teaching hours distillation 15 absorption 12 liquid—liquid extraction 5 drying 6 Membrane separation 2 40 course design 2 weeks Design a distillation column

Marks examination 90% homework 10% Course design % Reference books: 1.Handbook of Separation Technique for Chemical Engineers by P.A. Schwwitzer, Handbook of Separation Technology by R.W. Rousscan,1987

3. 化工原理（下） 天大、华东、大工 4. 《化工原理学习指导》 匡国柱主编 大连理工大学出版社