Which of the following is the most suitable for very high pressure gas phase rea

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Question
Which of the following is the most suitable for very high pressure gas phase reaction?
Options
A. Batch reactor
B. Tubular flow reactor
C. Stirred tank reactor
D. Fluidised bed reactor

Correct Answer

Tubular flow reactor

Chemical Reaction Engineering problems

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2. 'If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the
Options
A. pressure
B. temperature
C. both (a) & (b)
D. neither (a) nor (b)

5. A catalyst loses its activity due to
Options
A. loss in surface area of the active component.
B. agglomeration of metal particles caused by thermal sintering of the solid surface.
C. covering of the catalytic active sites by a foregin substance.
D. all (a), (b) and (c).

7. For high conversion in a highly exothermic solid catalysed reaction, use a __________ bed reactor.
Options
A. fixed
B. fluidised bed reactor followed by a fixed
C. fixed bed reactor followed by a fluidised
D. fluidised

9. Pick out the wrong statement pertaining to space velocity of flow reactors.
Options
A. The unit of space velocity is (time)^-1 .
B. The space velocity of 3 hr^-1 means that three reactor volumes of feed at specified conditions are being fed into the reactor every hour.
C. The space velocity of 3 hr^-1 means that one third reactor volume of feed at specified conditions are being fed into the reactor.
D. none of these.

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