Elementary Principles Of Chemical Processes
Elementary Principles Of Chemical Processes
4th Edition
ISBN: 9781119254003
Author: Richard M. Felder And Ronald W. Rousseau
Publisher: WILEY
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Chapter 9, Problem 9.34P
Interpretation Introduction

(a)

Interpretation:

The flowchart of the process needs to be prepared, considering absorption and distillation as a single unit.

Concept introduction:

Flow chart is diagrammatic representation of the reaction taking place in the reactor.

Elementary Principles Of Chemical Processes, Chapter 9, Problem 9.34P

The calculation of flowchart is based on the relation

Input-Output=Accumulation

It helps to determine the amount of product formed with respect to the amount of reactant fed to the reactor.

Interpretation Introduction

(b)

Interpretation:

The operating temperature of methanol vaporizer needs to be determined.

Concept introduction

Raoult’s law: This law implies that a given temperature the value of vapor pressure is equal to the product of mole fraction of components and total pressure.

The relationship is gives as

ym×P=Pm×(Tm)

Here,

ym is the number of moles of components

P is the total pressure of components

Pm is the vapor pressure with respect to the temperature (Tm)C

Antoine equation used to determine the temperature using partial pressure in mmHg

log10(P)=ABC+T

P is the vapor pressure in mmHg

T is the temperature in C

A, B and C are the constants with respect to components and temperature

If the vapor pressure in mmHg the calculation of temperature by using relation

T=BAlog10(P)C

This relationship correlates the temperature with vapor pressure.

Interpretation Introduction

(c)

Interpretation:

The feed rate of stream in Kg/hr and product gas composition along with molal flow rate needs to be determined.

Concept introduction:

Mole fraction (yi) of any components given by:

yi=nini

Here, ni is the moles of component i and ni is the total moles of all the components present in the mixture.

The below equation used to calculate the amount of heat transfer

ΔH=ΔH^f+T2T1(cp)dT

Q= Amount of heat transfer

cp is the heat capacity of components

Interpretation Introduction

(d)

Interpretation:

The steam rate generation in kg/hr for waste heat boiler needs to be determined.

Concept introduction:

Relation gives the amount of heat generation:

Q=outnH^iinnH^i

Here,

outnH^i is the heat of formation of product.

innH^i is the heat of formation of reactant.

Enthalpy of reactant and product depends upon the specific heat and the temperature difference.

Interpretation Introduction

(e)

Interpretation:

The impact of steam on outlet temperature needs to be explained.

Concept introduction:

The amount of heat transfer

ΔH=ΔH^f+T2T1(cp)dT

Q= Amount of heat transfer

cp is the heat capacity of components

The concept is based on heat exchangers.

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Chapter 9 Solutions

Elementary Principles Of Chemical Processes

Ch. 9 - Prob. 9.11PCh. 9 - Prob. 9.12PCh. 9 - In the production of many microelectronic devices,...Ch. 9 - Prob. 9.14PCh. 9 - Prob. 9.15PCh. 9 - Prob. 9.16PCh. 9 - Prob. 9.17PCh. 9 - Carbon monoxide at 25°C and steam at 150°C are fed...Ch. 9 - Prob. 9.19PCh. 9 - Prob. 9.20PCh. 9 - Ethyl alcohol (ethanol) can be produced by the...Ch. 9 - Prob. 9.22PCh. 9 - Prob. 9.23PCh. 9 - Prob. 9.24PCh. 9 - Formaldehyde is produced commercially by the...Ch. 9 - Prob. 9.26PCh. 9 - Prob. 9.27PCh. 9 - Prob. 9.28PCh. 9 - Prob. 9.29PCh. 9 - A gas mixture containing 85 mole% methane and the...Ch. 9 - Ethylene oxide is produced by the catalytic...Ch. 9 - Cumene (C6H5C3H7) is produced by reacting benzene...Ch. 9 - Ethylbenzene is converted to styrene in the...Ch. 9 - Prob. 9.34PCh. 9 - Prob. 9.35PCh. 9 - Prob. 9.36PCh. 9 - Prob. 9.37PCh. 9 - Coke can be converted into CO—a fuel gas—in the...Ch. 9 - Prob. 9.39PCh. 9 - Prob. 9.40PCh. 9 - Prob. 9.41PCh. 9 - The equilibrium constant for the ethane...Ch. 9 - You are checking the performance of a reactor in...Ch. 9 - Hydrogen is produced in the steam reforming of...Ch. 9 - Prob. 9.45PCh. 9 - Five cubic meters of a 1.00-molar aqueous sulfuric...Ch. 9 - Prob. 9.47PCh. 9 - Prob. 9.48PCh. 9 - Prob. 9.49PCh. 9 - Calcium chloride is a salt used in a number of...Ch. 9 - A dilute aqueous solution of sulfuric acid at 25°C...Ch. 9 - A 2.00 mole% sulfuric acid solution is neutralized...Ch. 9 - A 12.0-molar solution of sodium hydroxide (SG =...Ch. 9 - Citric acid (C6H8O7) is used in the preparation of...Ch. 9 - Ammonia scrubbing is one of many processes for...Ch. 9 - Various uses for nitric acid are given in Problem...Ch. 9 - A natural gas is analyzed and found to consist of...Ch. 9 - Prob. 9.58PCh. 9 - A fuel gas is known to contain methane, ethane,...Ch. 9 - A fuel gas containing 85.0 mole% methane and the...Ch. 9 - A mixture of air and a fine spray of gasoline at...Ch. 9 - The heating value of a fuel oil is to be measured...Ch. 9 - Methanol vapor is burned with excess air in a...Ch. 9 - Methane at 25°C is burned in a boiler furnace with...Ch. 9 - Methane is burned completely with 40% excess air....Ch. 9 - A gaseous fuel containing methane and ethane is...Ch. 9 - A coal contains 73.0 wt% C, 4.7% H (not including...Ch. 9 - A mixture of methane, ethane, and argon at 25°C is...Ch. 9 - Prob. 9.69PCh. 9 - Prob. 9.70PCh. 9 - Prob. 9.71PCh. 9 - A bituminous coal is burned with air in a boiler...Ch. 9 - Prob. 9.73PCh. 9 - A natural gas containing 82.0 mole% CH4and the...Ch. 9 - Prob. 9.75PCh. 9 - Liquid n-pentane at 25°C is burned with 30% excess...Ch. 9 - Methane is burned with 25% excess air in a...Ch. 9 - Methane and 30% excess air are to be fed to a...Ch. 9 - Prob. 9.79PCh. 9 - In Problem 9.79, the synthesis of methanol from...Ch. 9 - Natural gas that contains methane, ethane, and...Ch. 9 - Prob. 9.82PCh. 9 - The wastewater treatment plant at the Ossabaw...
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