Engineering, 18.02.2020 02:22 SarahBelle5663

The hydrogenolysis of thiophene C4H4S) has been studied at 235-265 °C over a cobalt-molyb- date catalyst, using a CSTR containing 8.16 g of catalyst. The stoichiometry of the system can be represented by

C4H4S+3H2 → C4H8+ H2S Reaction1
C4H8+ H2 → C4H10 Reaction 2

All species are gaseous at reaction conditions. The feed to the CSTR consisted of a mixture of thiophene, hydrogen, and hydrogen sulfide. The mole fractions of butene (C4Hg), butane (C4Hio), and hydrogen sulfide in the reactor effluent were measured. The mole fractions of hydrogen and thiophene were not measured. The data from one particular experimental run are given below:

Total pressure in reactor= 832 mmHg
Feed rate

Thiophene= 0.653 x 10^-4 g mol/min
Hydrogen= 4.933 × 10^-4 g·mol/min
Hydrogen sulfide= 0

Mole fractions in effluent
H2S =0.0719
Butenes = 0.0541

Calculate -rT (the rate of disappearance of thiophene) and the partial pressures of thiophene, hydrogen, hydrogen sulfide, butenes (total), and butane in the effluent. You may assume that the ideal gas laws are valid.

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The hydrogenolysis of thiophene C4H4S) has been studied at 235-265 °C over a cobalt-molyb- date cata...