Engineering, 18.10.2019 17:10 anniebear

Ethanol is produced commercially by the hydration of ethylene:

c2h4+h2o--> c2h5oh

some of the product is converted to diethyl ether in side reaction

2c2h5oh--> (c2h5)2o+h2o

the feed to the reactor contains ethylene, steam, and an inert gas. a sample of the reactor effluent gas is analyzed and found to contain 43.3 mole% ethylene, 2.5% ethanol, 0.14% ether, 9.3% inerts, and the balance water.

a. take as a basis 100 mol of effluent gas, draw and label a flowchart, and do a degree-of-freedom analysis based on atomic species to prove that the system has zero degrees of freedom?

b. calculate the molar composition of the reactor feed, the percentage conversion of ethylene, the fractional yield of ethanol, and the selectivity of ethnaol production relative to ether production?

Answers: 2

Show answers

Another question on Engineering

Engineering, 04.07.2019 18:10

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false

Answers: 1

Answer

Engineering, 04.07.2019 18:20

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above

Answers: 1

Answer

Engineering, 04.07.2019 19:20

To save energy, the air supply to a 2000 ft office has been shut off overnight and the room temperature has dropped to 40°f. in the morning, the thermostat is reset to 70°f and warm air at 120 f begins to flov in at 200ft'/min. the air is well mixed within the room, and an equal mass flow of air at room temperature (changing with time) is withdrawn through a return duct. the air pressure is nearly 1 atm everywhere. ignoring heat transfer with the surroundings and kinetic and potential energy effects, estimate how long it takes for the room temperature to reach 70°f. plot the room temperature as a function of time.

Answers: 1

Answer

Engineering, 04.07.2019 19:20

Consider airflow over a flat plate of length l = 1.5 m under conditions for which transition occurs at le = 0.9 m based on the critical reynolds number, re,e = 5 x 10. evaluating the thermophysical properties of air at 400 k, determine the air velocity. (hint: use the tables to find the properties of air)

Answers: 3

Answer

You know the right answer?

Ethanol is produced commercially by the hydration of ethylene:

c2h4+h2o--> c2h5oh

Questions