Chapter 14, Problem 14.41P

The following problems involving chemical-reaction stoichiometry are to be solved through the use of reaction coordinates.

1. Feed to a gas-phase reactor comprises 50 kmol+h^-1 of species A, and 50 kmol+h^-1 of species B. Two independent reactions occur:

A + B → C (I)
A + C → D (II)
Analysis of the gaseous effluent shows mole fractions y_a= 0.05 and y_B= 0.10.

1. What is the reactor effluent rate in kmol+h^-1 ?
2. What are the mole fractions y_C and y_D in the effluent?

Feed to a gas-phase reactor comprises 40 kmol+h^-1 of species A, and 40 kmol+h^-1 of species B. Two independent reactions occur:

A + B → C (I)
A + 2B → D (II)
Analysis of the gaseous effluent shows mole fractions: y_c = 0.52 and y_D = 0.04. Determine the rates (kmol+h^-1) of all species in the effluent stream.

Feed to a gas-phase reactor is 100 kmol+h^-1 of pure species A. Two independent reactions occur

A → B + C (I)
A + B → D (II)
Reaction (I) produces valuable species C and coproduct B. The side reaction (II) produces by-product D. Analysis of the gaseous effluent shows mole fractions y_c = 0.30 and Y_D= 0.10. Determine the rates (kmol+h^-1) of all species in the effluent stream.

The feed to a gas-phase reactor is 100 kmol+h^-1, containing 40 mol-% species A and 60 mol-% species B. Two independent reactions occur.

A + B → C (I)
A + B → D + E (II)
Analysis of the gaseous effluent shows mole fractions y_c = 0.25 and y_D = 0.20. Determine:

1. Rates in kmol+h^-1 of all species in the effluent stream.
2. Mole fractions of all species in the effluent stream.