# CBEMS 45A Chemical Processing and Materials Balances (2012-2013)

#### CBEMS 45A Chemical Processing and Materials Balances

**CBEMS 45A Chemical Processing and Materials Balances (Credit Units: 4)** Introduction to chemical engineering and the industries where chemical engineers play vital roles. Problem-solving skills and techniques. Quantitative calculations and applications using mass and energy balances. Stoichiometric equations, multiple bypasses, and others in process industries. Prerequisite: Mathematics 2B; Chemistry 1B; Physics 7C. (Design units: 0)

Don Green, Perry's Chemical Engineers' Handbook, Eighth Edition. 8th Edition, McGraw-Hill Professional, 2007, ISBN-13 978-0071422949.

1. Define the discipline of chemical engineering, including contemporary issues. (EAC j)

2. Describe the professional opportunities available to chemical engineers.

3. Draw and fully label a flowchart for a written process description, choose a convenient basis, perform degrees-of-freedom analysis, and calculate the required process variables for the overall system. (EAC a, EAC c, EAC e, EAC k)

4. Use component mole balances, the extent of reaction methodology, and atomic species balances to solve material balance problems with reactions. (EAC a, EAC e, EAC k)

5. Calculate the feed rate of air for a combustion reaction, given the fuel composition and percent excess air. ChE-2 (EAC a, EAC c, EAC e, EAC k)

6. Apply the ideal gas law to determine any of the four quantities: a) temperature, b) pressure, c) mole number, or d) volume, when the other three are given. (EAC a)

7. Estimate the vapor pressure of pure, non-aqueous substances at a specified temperature, or the boiling point at a specified pressure, using: a) the Antoine equation, b) the Cox chart, or c) the Clausius-Clapeyron equation. (EAC a)

8. Estimate the vapor pressure of pure water at a specified temperature, or the boiling point at a specified pressure, using the steam tables. (EAC a)

- General Chemistry
- Use of units and significant figures
- Chemical stoichiometry
- Ability to solve algebraic equations

- Units, dimensions
- Material balances
- Recycle, bypass, purge
- Material balances on reacting systems
- Combustion processes
- Elementary phase equilibrium
- Staged separations - extraction
- Basic process synthesis based on economic, environmental, and safety considerations

Meets for 3 hours of lecture and 1 hour of discussion each week for 10 weeks.

Students are required to use basic computer skills to prepare solutions to some homework assignments and the designated computer assignment.

None.

Contributes toward the Chemical Engineering Major design experience.

- Homework: 10%
- Quizzes: 20%
- Midterm Exam: 35%
- Final Exam: 35%
- Total: 100%

Mathematics and Basic Science: 0.0 credit units

Computing: 0.0 credit units

Engineering Topics: 4.0 credit units

Engineering Science: 4.0 credit units

Engineering Design: 0.0 credit units