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.
Answers: 2
Engineering, 04.07.2019 18:10
Fluids at rest possess no flow energy. a)- true b)- false
Answers: 3
Engineering, 04.07.2019 18:20
Atank with constant volume contains 2.27 kg of a mixture of water phases (liquid-vapor). in the initial state the temperature and the quality are 127 °c and 0.6, respectively. the mixture is heated until the temperature of 160 oc is reached. illustrate the process in a t-v diagram. then, determine (1) the mass of the vapor in kg at the initial state, (2) the final pressure in kpa.
Answers: 3
Engineering, 04.07.2019 18:20
Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa.s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)
Answers: 3
Engineering, 04.07.2019 19:10
Plan an experiment to measure the surface tension of a liquid similar to water. if necessary, review the ncfmf video surface tension for ideas. which method would be most suitable for use in an undergraduate laboratory? what experimental precision could be expected?
Answers: 2
The hydrogenolysis of thiophene C4H4S) has been studied at 235-265 °C over a cobalt-molyb- date cata...
Geography, 17.03.2020 23:41
Biology, 17.03.2020 23:41
Geography, 17.03.2020 23:41
Mathematics, 17.03.2020 23:41
Biology, 17.03.2020 23:41
Mathematics, 17.03.2020 23:41
Mathematics, 17.03.2020 23:41