Question

In a gas absorption tower, acetone is absorbed from its mixture with air using a nonvolatile...

In a gas absorption tower, acetone is absorbed from its mixture with air using a nonvolatile
absorption oil. 100 mol/h of gas mixture enter the bottom of the column contains 30 mol%
acetone while 261.9 mol/h oil enter the top of the column. The exiting gas stream is to
contain 1.3 mol% acetone.
a) Determine molar flow rate of the exiting gas and exiting liquid streams.

b) Determine number of stages required for the above process.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
By means of a plate column, acetone is absorbed from its mixture with air in a...
By means of a plate column, acetone is absorbed from its mixture with air in a non-volatile absorption oil. The entering gas contains 20 mole percent acetone, and the entering oil is acetone-free. Of the acetone in the air, 98.5 percent is to be absorbed, and the concentration of the liquor at the bottom of the tower is to contain 8 mole percent acetone. The equilibrium relationship is ye=1.85xe. Plot the operating line and determine the minimum number of stages....
In an absorption tower (or absorber), a gas is contacted with a liquid such that one...
In an absorption tower (or absorber), a gas is contacted with a liquid such that one or more components in the gas is transferred in the liquid. A stripping tower (stripper) also involves a gas contacting a liquid but components are transferred from the liquid into the gas. A process consisting of an absorber and a stripper is used to separate the components of a gas containing 35.0 mole% CO2 and the balance CH4. This gas is fed to the...
A countercurrent absorption column operating at 3 atm and 20 °C is used to scrub acetone...
A countercurrent absorption column operating at 3 atm and 20 °C is used to scrub acetone from air into water. Separation is to be accomplished in 5 equilibrium stages. The total inlet gas flow rate is 100 kmol/h and contains 0.4 mol% acetone. The inlet liquid contains 0.01 mol% acetone. Outlet gas is 0.02 mol% acetone. Assume constant flow rates and note that the Henry’s law constant (H) for acetone in water at 20 °C is 1.186 atm/(mole fraction). Find...
Gas mixture containing H2S and air from a petroleum distillation column, has its concentration of H2S...
Gas mixture containing H2S and air from a petroleum distillation column, has its concentration of H2S reduced from 4.0 mol% to 0.1 mol% by scrubbing with a triethanolamine-water solvent in a countercurrent tower, operating at 300 K and at atmospheric pressure. H2S is soluble in such a solution and the equilibrium relation may be taken as Ye = 2.2X. The solvent enters the tower free of H2S and leaves containing 0.015 kmol of H2S/kmol of solvent. The overall coefficient for...
A liquid mixture contains 50 wt% ethanol (E), '10 wt% of a dissolved solute (S) and...
A liquid mixture contains 50 wt% ethanol (E), '10 wt% of a dissolved solute (S) and the balance is water (W). A stream of this mixture F, is fed to a continuous distillation column operating at a steady state. Two streams emerge from the column as the top product, P and the bottom waste Q, respectively. The column design class for the product streams is to have equal mass flow rate, and for the top product stream, P is to...
You are required to design an absorption column. A gas stream is 92 mol% N2 and...
You are required to design an absorption column. A gas stream is 92 mol% N2 and 8 mol% CO2. We wish to absorb the CO2 into water. The inlet water is pure and is at 25°C and 1 atm. If the liquid flow rate is 1.5 times the minimum liquid flow rate, how many equilibrium stages are required to absorb 65% of the CO2? The system is considered concentrated. Choose a basis of 100 mol/h of entering gas. Find the...
A mixture of 1000 kg/h contains an equal parts by mass of methanol and water is...
A mixture of 1000 kg/h contains an equal parts by mass of methanol and water is distilled. Product streams leave the top and the bottom of the distillation column. The flow rate of the bottom stream is measured at 673kg/h and the overhead stream is analyzed and found to contain 96 wt % methanol. a. construct a flowchart of the process and perform the degree of freedom analysis. [6 marks] b' Determine the mass and mole fractions of methanol and...
Separations Question It is desired to recover atleast 95% of ethanol from a mixture of ethanol...
Separations Question It is desired to recover atleast 95% of ethanol from a mixture of ethanol and carbon dioxide (containing 98 % CO2 and 2 % ethanol) by scrubbing the vapor mixture with pure water. Assume equilibrium relation Y = 0.57 X. The gas stream enters the absorption column at 180 kmol/hour (V’) at 120 kPa (P) and 27 °C (T). The carrier gas may be considered insoluble in the solvent and the solvent may be considered nonvolatile. Assume dilute...
Rectification. McCabe-Thiele Method. A mixture of benzene-toluene is to be distilled in a fractionating tower at...
Rectification. McCabe-Thiele Method. A mixture of benzene-toluene is to be distilled in a fractionating tower at 101.3 kPa. The column is fed 120 kg mol /h of a saturated liquid at the boiling point with 60 mol % benzene and 40 mol % toluene. The content of the distillate is 92 mol % benzene, and of the bottoms 5 mol % benzene. The reflux ratio is 3:1. (a) Calculate the kg mol/h distillate: D=_______ (b) Calculate the kg mol/h bottoms:...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT