7. Reactor with mass transfer and Ideal DC

Reactor with mass transfer involves 2 phases which are gas and liquid. What is the state which the reaction takes place

• Solid

• Liquid

• Gas

• Plasma

Based on the case discussed in the lecture notes, Select TWO(2) cases which limits the production of the product C.

• Mass transfer limited

• Gas - Liquid equilibrium limited

• Chemical rate limited

• Time limited

For mass transfer limited, select ONE (1) correct statement

• Mass transfer of gas to the liquid is very fast

• The reaction proceed as per the chemical reaction kinetics

• Increasing the concentration of reactant in gas can increase the conversion

• Increasing the temperature will increase the conversion rate from reactant to product

For chemical rate limiting process, select ONE (1) incorrect statement

• Increasing the reactor temperature will increase the reaction rate

• Reactant in gas phase easily dissolve in liquid phase

• The mass transfer of gas phase into liquid is low

• The reaction proceed as per intended by the reaction kinetics

Referring to the example discussed in the lecture notes, TCE and CCE for the gas phase is the same because

• Reaction only occur in liquid phase

• the gas phase dynamic is negligible

• Only 1 component is available in gas phase

• Temperature change in gas phase is negligible

For distillation column, what is the condition of the liquid feed to the feed tray?

• Compressed liquid

• Saturated liquid

• Saturated vapor

• Superheated vapor

• Mass

• Volume

• Mole

• Concentration

Several assumption need to be made to simplify the derivation of the Ideal distillation column. Select ONE (1) incorrect statement on the assumption that can be made.

• Temperature change form tray to tray is assumed negligible

• Vapor holdup in every tray is assume to be constant

• Equimolal overflow

• 100% tray efficiency

There are 3 types of condenser that can be used in a distillation column (DC). For the ideal DC case, it is assumed that the condenser used is a

• Total condenser

• Partial Condenser

• Total Reflux

• Total Reboiler

For an Ideal DC, vapor flowrate is consider significant at only 2 location which are reflux drum and

• Top Tray

• Feed tray

• Next top tray

• Column base and reboiler