The reaction A → B is conducted in an adiabatic plug flow reactor (PFR). Pure A at a concentration of 2 kmol/m³ is fed to the reactor at the rate of 0.01 m³ /s and at a temperature of 500 K. If the exit conversion is 20%, then the exit temperature (in k)is (Data: Heat of reaction at 298 K = - 50000 kJ/ kmole of A reacted Heat capacities CPA = CPB = 100kJ/kmole. K (may be assumed to be independent of temperature))

Chemical Reaction Engineering
The reaction A → B is conducted in an adiabatic plug flow reactor (PFR). Pure A at a concentration of 2 kmol/m³ is fed to the reactor at the rate of 0.01 m³ /s and at a temperature of 500 K. If the exit conversion is 20%, then the exit temperature (in k)is (Data: Heat of reaction at 298 K = - 50000 kJ/ kmole of A reacted Heat capacities CPA = CPB = 100kJ/kmole. K (may be assumed to be independent of temperature))

500

400

1000

600

500

400

1000

600

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Chemical Reaction Engineering
Space velocity

Is a measure of the ease of the reaction

Is the maximum feed rate pre unit volume of reactor for a given conversion

All of these

Describes the extensive operating characteristics of a tubular flow reactor

Is a measure of the ease of the reaction

Is the maximum feed rate pre unit volume of reactor for a given conversion

All of these

Describes the extensive operating characteristics of a tubular flow reactor

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Chemical Reaction Engineering
A typical example of an exothermic reversible reaction conducted at high pressure in industry is

Reformation of methane

Polymerisation of ethylene

Dehydration of ethanol

Methanol synthesis

Reformation of methane

Polymerisation of ethylene

Dehydration of ethanol

Methanol synthesis

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Chemical Reaction Engineering
The space time is equivalent to the holding time in a steady state mixed reactor for

Variable fluid density systems

Constant fluid density systems

Gas reactions with changing no. of moles

Non-isothermal gas reaction

Variable fluid density systems

Constant fluid density systems

Gas reactions with changing no. of moles

Non-isothermal gas reaction

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Chemical Reaction Engineering
Fluidised bed reactor is characterised by

Very small pressure drop

Absence of continuous catalyst regeneration facility

Comparatively smaller equipment

Uniformity of temperature

Very small pressure drop

Absence of continuous catalyst regeneration facility

Comparatively smaller equipment

Uniformity of temperature

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Chemical Reaction Engineering
According to Arhenious equation of temperature dependency of rate constant for an elementary reaction

K ∝ e-E/RT

None of these

K ∝ √T

K ∝ T e-E/RT

K ∝ e-E/RT

None of these

K ∝ √T

K ∝ T e-E/RT

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Chemical Reaction Engineering

Chemical Reaction Engineering Space velocity

Chemical Reaction Engineering A typical example of an exothermic reversible reaction conducted at high pressure in industry is

Chemical Reaction Engineering The space time is equivalent to the holding time in a steady state mixed reactor for

Chemical Reaction Engineering Fluidised bed reactor is characterised by

Chemical Reaction Engineering According to Arhenious equation of temperature dependency of rate constant for an elementary reaction

Chemical Reaction Engineering
Space velocity

Chemical Reaction Engineering
A typical example of an exothermic reversible reaction conducted at high pressure in industry is

Chemical Reaction Engineering
The space time is equivalent to the holding time in a steady state mixed reactor for

Chemical Reaction Engineering
Fluidised bed reactor is characterised by

Chemical Reaction Engineering
According to Arhenious equation of temperature dependency of rate constant for an elementary reaction