The absorption of hydrogen chloride from dilute air mixtures

Author

Edgar L. Demarest, New Jersey Institute of Technology

Document Type

Thesis

Date of Award

6-30-1970

Degree Name

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

Department

Chemical Engineering and Chemistry

First Advisor

Jerome J. Salamone

Second Advisor

Deran Hanesian

Third Advisor

Angelo J. Perna

Abstract

A study was made of the absorption of hydrogen chloride from air mixtures containing from 1 to 40 mgm. HCl/liter (1000 to 40000 mgm./m.³), using a.4" diameter tower packed with 2" Intalox saddles, irrigated with water or with sodium hydroxide solutions of 0.3% to 3.8% concen?tration. Gas flow rates of 177 to 752 lbs./(hr.)(ft.²) were investigated at three liquid rates: 2960 ; 4260, and 5700 lbs./(hr/)(ft.²). All data were collected below the flooding point.

Correlations of the height of a transfer unit with the superficial gas velocity were prepared for water and for sodium hydroxide irrigation, and a relationship was presented for the over-all coefficient of mass transfer to the ratio of sodium hydroxide normality and pressure. Height of a transfer unit is approximately 0.5 foot for a superficial gas velocity of 500 lbs./(hr.)(ft.²) for both water and sodium hydroxide as absorbing liquid.

Recommended Citation

Demarest, Edgar L., "The absorption of hydrogen chloride from dilute air mixtures" (1970). Theses. 2330.
https://digitalcommons.njit.edu/theses/2330