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introduction to chemical engineering ch (2) .pdf



Original filename: introduction to chemical engineering ch (2).pdf
Title: Chapter 2
Author: Ken Solen

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Chapter 2 – Answer Key, Introduction to Chemical Engineering: Tools for Today and Tomorrow
Reading Question 2.1:
The purpose of the equipment and conditions used in a process is to convert the starting materials
into the desired products.

Chapter 2 – Answer Key, Introduction to Chemical Engineering: Tools for Today and Tomorrow
Reading Question 2.2:
A continuous process operates without interruptions in the flows and reactions of the process. In
contrast, a batch process consists of multiple steps which are initiated and concluded in
sequence, one batch at a time.

Chapter 2 – Answer Key, Introduction to Chemical Engineering: Tools for Today and Tomorrow
Reading Question 2.3:
A steady-state process is one in which none of the process characteristics change with time. In
other words, the conditions at any point in the process remain the same (constant with respect to
time).

Chapter 2 – Answer Key, Introduction to Chemical Engineering: Tools for Today and Tomorrow
Reading Question 2.4:
A PFD shows more detail than a block diagram and typically includes a stream table. The PFD
also includes symbols or icons which “look like” the actual equipment as opposed to the
rectangular blocks used in the block diagram.

Chapter 2 – Answer Key, Introduction to Chemical Engineering: Tools for Today and Tomorrow
Reading Question 2.5:
Test tube
Tank
Lab Burner
Heat Exchanger
Reaction Vessel
Reactor
Distillation Apparatus
Distillation Column

Chapter 2 – Answer Key, Introduction to Chemical Engineering: Tools for Today and Tomorrow
Homework Problem 2.1:
a. continuous and non steady-state.
b. batch and non steady-state.
c. continuous and steady-state.

Chapter 2 – Answer Key, Introduction to Chemical Engineering: Tools for Today and Tomorrow
Homework Problem 2.2:

Dialysate
Concentrate

Distilled
Water

Hot
Water

Ultrapure
Filter

Heater
Warm
Dialysate

Impurities
Heparin
From
Patient

Impure
Blood

Hemodialyzer

Filter
Cleansed
Blood

Drain

Particulates

Return to
Patient

Chapter 2 – Answer Key, Introduction to Chemical Engineering: Tools for Today and Tomorrow
Homework Problem 2.3:
Oil
Heater

Reactor

Crude
Biodiesel

Coconut Oil

Water
Filter

Washer
Water

Water vapor
Dry diesel
Water

Fuel

Water and
residuals

Mixer
Glycerol

NaOH
Methanol

Condensed
Methanol

Water
Evaporator

Washed (wet)
Biodiesel

Fuel

Coconuts

Diesel
Heater

Methanol
Condenser Cold
Water
Glycerol
Heater

Methanol vapor

Methanol Evaporator
Purified
Glycerol
Coconut Milk

Fuel

NaCl Solution

Solidifier
Soap

Chapter 2 – Answer Key, Introduction to Chemical Engineering: Tools for Today and Tomorrow
Homework Problem 2.4:
a. Block diagram
Steam

Steam
Propane
Storage

Desulfurizer

Reforming
Furnace

CO
Converter

CO2
Absorber

Methanator

Purified
Hydrogen

b. Process flow diagram

Steam

Steam

Steam

Amine
Solution
In
Water
Amine
Solution
Out

Propane
Storage
Tank

Desulfurizer

Fuel

Reforming
Furnace

CO
Converter

CO2
Absorber

Water
Purified
Hydrogen
to Storage
Methanator


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