Organic chemistry
Unit operations
Transport processes Reaction Eng. CE thermodynamics Separation Eng.
Science experiment
Analytic chemistry Physical chemistry
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Chemical engineering process is complex and various
• For example: • Fluid catalytic cracking(FCC) of petroleum • Synthetic ammonia • Manufacture common salt
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• • • • • •
Agitation and mixing of liquids搅拌 Liquid-solid leaching浸取 Crystallization结晶 Membrane separation膜分离 Adsorption吸附 Ion exchange离子交换
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•Transportation of fluids •Deposition •Filtration •Centrifugal separation •Heating •Cooling •Evaporation •Distillation •Absorption •Adsorption •Extraction •Crystallization •Drying
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MIT founded first ChE department in 1887. The Institution of Chemical Engineers (IChemE 化学工程师学会 ) was founded in 1922. W.H. Walker published first Principles of Chemical Engineering in 1923.
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• Fluid catalytic cracking(FCC) of petroleum •Transportation of fluids and solids
•Distillation •Mechanical separations •Heat transfer
The individual operations have common techniques and are based on the same scientific principles.
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• f. Absorption 吸收 Chapter 17,18 • g. Distillation 精馏 Chapter 20,21 • h. Liquid-liquid extraction 液液萃取 Chapter 23 • i. Drying of solid 干燥, Humidification增 湿 Chapter 24
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INTRODUCTION Chemical engineering has to do with industrial processes in which raw materials are changed or separated into useful products.
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Inorganic chemistry
Chemis t
CE expert
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Chemical production
Chemical engineering is both an art and a science.
• Science does not give a complete answer, it is necessary to use experience and judgment.
Unit Operations of Chemical Engineering
化工流体流动与传热
化工传质与分离过程
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SECTION I
Introductionnciples
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Content
• • • • • Introduction 1.1 Unit operations 1.2 Unit systems 1.3 Dimensional analysis 1.4 Basic concepts
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• 国家首批精品课程（2003）
•(a). Basic Course •(b). Advanced Course •(c). Bilingual Course •(d). Web course
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2.Classification of unit operations
• a. Fluid flow流体流动 Chapter 2~5 • b. Transportation of fluid流体输送 Chapter 8 • c. Mechanical separation机械分离, 非均 相物系的分离 Chapter 7&29 • d. Heat transfer传热 Chapter 10~15 • e. Evaporation蒸发 Chapter 16
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1.1 UNIT OPERATIONS
• • • • 1. Unit operations 2. Classification of unit operations 3. Course description 4. Course objectives
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1. Unit operations
• The unit operations are largely used to conduct the primarily physical steps of preparing the reactants, separating and purifying the products, recycling unconverted reactants, and controlling the energy transfer into or out of the chemical reactor.