Chbe 301- Material & Energy Balances Rice University Department of Chemical and Biomolecular Engineering

Table of Contents

Cover Page and Credits Chapter 0: Introduction and Schedule Felder & Rousseau Examples Chapter 1: Material Balances Chapter 2: The Chemical Engineering FORTRAN Programs

Chapter 3: Mass and Energy Balance Simulations Chapter 4: Multi-Phase Problems Chapter 5: Graphical Representation of Matlab Commands Indices

Chapter 0:

• 0.1: Introduction
• 0.2: Schedule

Chapter 1: Material Balances

•  
• 1.1: Discussion
• 1.2: Drawing Flow Diagrams
• 1.3: Flow Sheet Simulation
• 1.4: Linear Independence of Multiple Reactions
• 1.5 Analysis of Plant Units
• 1.6 Analyzing the Flows and Reactions in a Plant

  Discussion:

  • 1.1.1 Template for Typical Problem
  • 1.1.2 Example and Exercise on Flow Rates
  • 1.1.3 Problem: General Plant Separation

  Flow Sheet Simulation:

  • 1.3.0 The Mass Balance User Programs
  • 1.3.1 Starting a Session with: start301
  • 1.3.2 Saving MATLAB Workspace and Continuing a Session
  • 1.3.3 Listing Compound Names with: shownoh
  • 1.3.4 The Display Data Function: showm
  • 1.3.5 The Separator Function: sep
  • 1.3.6 The Splitter Function: split
  • 1.3.7 The Mixer Function: mix
  • 1.3.8 The Reactor Function: react
  • 1.3.9 Listing Equations with: chemeqs

  Analysis of Plant Units:

  • 1.5.0 Intro
  • 1.5.1 The Distillation Function: fraco
  • 1.5.2 The Separator Function: sept
  • 1.5.3 The Reactor Function: reactr
  • 1.5.4 The Root Finding "Module": ssec2
  • 1.5.5 Extraction of a Solute with: phase
  • 1.5.6 Extraction of a Solute with: phaseg

  Analyzing the Flows and Reactions in a Plant:

  • 1.6.1 Summary of Degree of Freedom Table
  • 1.6.2 Using the Modules to Simulate a Plant
  • 1.6.3 The General Purpose Driver Program: drive
  • 1.6.4 Use of Specially Written Functions

Chapter 2: The Chemical and Biomolecular Engineering FORTRAN Programs

• 2.1: Discussion
• 2.2: The General Program: cengfort
• 2.3: Unit Conversion
• 2.4 Molecular Weight Determination
• 2.5: The Atomic Matrix
• 2.6: Element Balances
• 2.7: Thermodynamic properties programs
• 2.8: Properties of Humid Air

Unit Conversion

• The Programs: convu and convh
• Table 2.3-1: Unit Conversion Table
• Changing Gas Constants
• An Old Homework Assignment
• Inconsistent old and new Units?

Molecular Weight Determinant

• The Program: fwt

The Atomic matrix

• The Program: atm

Element Balances

• The Program: el1
• The Program: el2
• The Program: el3

Thermodynamic properties programs

• The Program: steam
• The Programs: tprop2 and tprop3

Properties of Humid Air

• The Program: humid

Chapter 3: Mass and Energy Balance Simulations

• 3.1: Compound Property Data
• 3.2: Conservation of Energy: Terms in an Energy Balance
• 3.3: Energy Flow Sheet Functions
• 3.4: Examples of Energy Balances

Compound Property Data

• 3.1.1 Data in CENG 301's databases
• 3.1.2 Creating Your Own Data
• 3.1.3 Programs used to Access Data
• Table of Data Base Access Commands
  • shownoh
  • listcom
  • start301
  • Balancing Equations

Conservation of Energy

• 3.2.1 Energy Balance for a Closed System
• 3.2.2 Balance for an Open Steady State System

Energy Flow Sheet Functions

• 3.3.1 Table of the Main Energy Balance Functions
  • The Functions: enth1, enth2, and enth3
  • The Functions: HinkJ and mHinkJ
  • The Functions: setne, mixe, and showe
  • Example 7.25 in Reklaitis: using mixe
  • The Functions: sepe, splite, reacte, and reacten
  • Using addcomp and reacten in Example 8.4 in Reklaitis
  • Using reacten in Problem 8.28
  •  
• 3.3.2 Comparison of Enthalpies from HinkJ with those from the Fortran Programs
• 3.3.3 Avoiding the Use of Missing Data

Examples of Energy Balances

• 3.4.1 Sabatier Reactor Example
• 3.4.2 Degree of Freedom Table for Energy Balances

Chapter 4: Multi-Phase Problems

• 4.1: Phase Equilibria Between Vapor and Liquids
• 4.2: Mass and Energy Balances of Humid Air

Phase Equilibria Between Vapor and Liquids

• 4.1.1 Vapor Pressure of Pure Compounds
  • The Vapor Pressure Function: vappr
• 4.1.2 Bubble and Dew Points
  • The Distribution Coefficient Function: kval
  • Bubble Points with: bubpt
  • The Dew Point function: dewpt
• 4.1.3 Flashing a Liquid Mixture
  • The Flash function: flash

Mass and Energy Balances of Humid Air

• 4.2.1 Ratios of Water to Air
  • Start Humid Air Programs: humidity
  • The Function: molrat
  • The Mass Ratio Function: masrat
• 4.2.2 The Enthalpy and Volume of Humid Air
  • The Enthalpy of Humid Air Function: humde
  • The Volume Function: humdv

Chapter 5: Graphical Representation of Matlab Commands

• 5.1 sep
• 5.2 split
• 5.3 mix
• 5.4 react
• 5.5 fraco
• 5.6 sept
• 5.7 reactr
• 5.8 phaseg
• 5.9 mixe
• 5.10 sepe
• 5.11 splite
• 5.12 reacte
• 5.13 reacten

Indices

• Index of Matlab Functions
• Index of FORTRAN Functions