Effect of temperature on rate of absorption of ammonia by water in packed tower

Author

Chhotu B. Patel, New Jersey Institute of Technology

Document Type

Thesis

Date of Award

6-30-1964

Degree Name

Master of Science in Chemical Engineering - (M.S.)

Department

Chemical Engineering

First Advisor

John W. Axelson

Second Advisor

Joseph Joffe

Abstract

Measurements of the rate of absorption of ammonia in water have been made using a 4-inch diameter Lucite column With porcelain Raschig rings packed to a height of 3 feet, Tests were made with water rates of 462 and 695 lbs./ hr-ft² and a constant gas rate of 130 lbs/hr-ft² with liquid temperature verying from 72° F. to 110° F.

At constant liquid and gas rate, the mass transfer coefficient, Κ_Ga, decreases with increasing liquid temperature and in represented by straight lines on plot of Κ_Ga versus temperature. The variation of Κ_Ga with liquid temperature ranged from 6,05 at 72° F. to 2.5 at 104° F. with a constant liquid rate of 462 lbs. /hr-ft² and a constant gas rate of 130 lbs./hr-ft², At the same gas rate of 130 lbs./hr-ft², Κ_Ga varied from 6.55 at 78° F, to 5.28 at 100° F.

It was also found that Κ_Ga increases with an increase in water rate, and may also be represented by straight lines on a log-log plot.

Recommended Citation

Patel, Chhotu B., "Effect of temperature on rate of absorption of ammonia by water in packed tower" (1964). Theses. 2129.
https://digitalcommons.njit.edu/theses/2129