UNIT OPERATION - EXAMPLE 9.2 : A distillation column separates 10000 kg / hr of a mixture containing equal mass of benzene and toluene. The product D recovered from the condenser at the top of the column contains 95 % benzene, and the bottom W from the column contains 96 % toluene. The vapor V entering the condenser from the top of the column is 8000 kg / hr. A portion of the product from the condenser is returned to the column as reflux R, and the rest is withdrawn as the final product D. Assume that V, R, and D are identical in composition since V is condensed completely. Find the ratio of the amount refluxed R to the product withdrawn D. Hint : Solve the simultaneous equations as follow in order to find the answer (R / D) : 10000 = D + W; 10000 (0.5) = D (0.95) + W (0.04); 8000 = R + D.
- 1 Answers
- 1982 Views
- I also Faced
- E-Mail Answers
Answer Posted / kangchuentat
UNIT OPERATION - ANSWER 9.2 : Overall Process - Total Balance : 10000 = D + W. Benzene Balance : 10000(0.50) = D (0.95) + W (0.04). Solving simultaneously, D = 5050 kg / hr; W = 4950 kg / hr. Total balance around the separator : 8000 = R + D; R = 2950 kg / hr. Answer : Ratio R / D = (2950 / 5050) = 0.58. The answer is given by Kang Chuen Tat; PO Box 6263, Dandenong, Victoria VIC 3175, Australia; SMS +61405421706; chuentat@hotmail.com; http://kangchuentat.wordpress.com.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Define wet bulb globe temperature?
What is the angle of repose and what are its applications in the chemical industry?
Who built the first production scale pla (polylactic acid) facility?
Explain how can one determine if a particular solid can be fluidized as in a fluidized bed?
How can I evaluate the thermal relief requirements for double block-in of 98% sulfuric acid?
What does the catalytic converter on an automobile do?
Why do we apply on iron articles?
what is isochronus and droop speed?
Can you pls tell me how to calculate the amphere rating of cable in case of three phase supply but all load is single phase
which reformer efficiencywise best?
can anybody give me syallbus of chemical engineering for section engineer in railway.
How much will be the increment for postal assistant yearly?
What are the apt definitions for apparent power, active power and reactive power? Explain about different types of lamps?
When using a pumping loop to mix two miscible fluids in a tank, when can the content are considered well mixed?
What steps can be taken to avoid stress corrosion cracking (SCC) in steel vessels used for storing anhydrous ammonia?
