ELEM.PRIN.OF CHEMICAL PROC.-W/ACCESS
ELEM.PRIN.OF CHEMICAL PROC.-W/ACCESS
4th Edition
ISBN: 9781119330745
Author: FELDER
Publisher: WILEY
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Chapter 9, Problem 9.75P
Interpretation Introduction

(a)

Interpretation:

The stream temperature of acetone is to be calculated when the relative saturation of acetone is 12.2%.

Concept introduction:

The stream temperature calculation is based on number of moles of acetone, relative saturation and total pressure at the inlet

Formula for calculation is given as

(RelativeSaturation)C3H6O=(yi×PC3H6OpC3H6O(Tf)) ......... (1)

Here yi is the number of moles of C3H6O, PC3H6O is the total pressure of acetone entered,

pC3H6O(Tf) is the partial pressure for the acetone along with stream temperature

Mole fraction (yi) of any component is given by

yi=nini ......... (2)

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

At (STP) condition volume is considered as 22.4 m3

Interpretation Introduction

(b)

Interpretation:

Composition of product formed before and after combustion and the temperature of exit stream is to be calculated.

Concept introduction:

Mole fraction (yi) of any component is given by

yi=nini ......... (2)

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

Energy balance is used to calculate the temperature of exit stream is defined as the temperature attained by the product at the time of leaving the reactor.

ΔH = nC3H6OΔH^c+outnH^iinnH^i

ΔH is the change in enthalpy at 25C

ΔH^c is the heat of reaction

outnH^i is the heat of formation of product

innH^i is the heat of formation of reactant

outnH^i=nCO2cpCO2ΔT+nH2OcpH2OΔT+nN2cPN2ΔTinnH^i=nCO2cpC3H6OΔT+nO2cpO2ΔT+nN2cPN2ΔT

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

Interpretation Introduction

(c)

Interpretation:

The rate of heat transfer in kW for the process before and after combustion is to be calculated. The process for switching of reactor is also to be suggested.

Concept introduction:

Amount of heat transferred in watt is calculated as

Q=outnH^iinnH^i

Based on average heat capacity and temperature.

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Chapter 9 Solutions

ELEM.PRIN.OF CHEMICAL PROC.-W/ACCESS

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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