Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor?

Chemical Reaction Engineering
Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor?

Very low temperature should be used throughout the reaction

Very high temperature should be used throughout the reaction

None of these

Temperature should be high in the beginning and decreased towards the end of the reaction

Very low temperature should be used throughout the reaction

Very high temperature should be used throughout the reaction

None of these

Temperature should be high in the beginning and decreased towards the end of the reaction

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Chemical Reaction Engineering
Fluidised bed reactor is characterised by

Absence of continuous catalyst regeneration facility

Uniformity of temperature

Very small pressure drop

Comparatively smaller equipment

Absence of continuous catalyst regeneration facility

Uniformity of temperature

Very small pressure drop

Comparatively smaller equipment

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Chemical Reaction Engineering
Variables affecting the rate of homogeneous reactions are

Pressure, temperature and composition

Pressure and composition only

Pressure and temperature only

Temperature and composition only

Pressure, temperature and composition

Pressure and composition only

Pressure and temperature only

Temperature and composition only

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Chemical Reaction Engineering
Semibatch reactor is preferred, when a/an

A gas is to be reacted with liquid (e.g. hydrogenation of fat)

All of these

A highly exothermic reaction is to be controlled

Undersirable side reaction (at high concentration of one of the reactants) is to be avoided

A gas is to be reacted with liquid (e.g. hydrogenation of fat)

All of these

A highly exothermic reaction is to be controlled

Undersirable side reaction (at high concentration of one of the reactants) is to be avoided

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Chemical Reaction Engineering
BET apparatus

Operates at very high pressure

Is made entirely of stainless steel

Measures the catalyst surface area directly

None of these

Operates at very high pressure

Is made entirely of stainless steel

Measures the catalyst surface area directly

None of these

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Chemical Reaction Engineering
Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus)

Tan hT/tan T

Tan hT/T

Tan T/T

None of these

Tan hT/tan T

Tan hT/T

Tan T/T

None of these

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Chemical Reaction Engineering

Chemical Reaction Engineering Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor?

Chemical Reaction Engineering Fluidised bed reactor is characterised by

Chemical Reaction Engineering Variables affecting the rate of homogeneous reactions are

Chemical Reaction Engineering Semibatch reactor is preferred, when a/an

Chemical Reaction Engineering BET apparatus

Chemical Reaction Engineering Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus)

Chemical Reaction Engineering
Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor?

Chemical Reaction Engineering
Fluidised bed reactor is characterised by

Chemical Reaction Engineering
Variables affecting the rate of homogeneous reactions are

Chemical Reaction Engineering
Semibatch reactor is preferred, when a/an

Chemical Reaction Engineering
BET apparatus

Chemical Reaction Engineering
Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus)