The New Jersey Institute of Technology's
Electronic Theses & Dissertations Project

Title:	The absorption of hydrogen chloride from dilute air mixtures
Author:	Demarest, Edgar L.
View Online:	njit-etd1970-016 ([ix], 58 pages ~ 2.5 MB pdf)
Department:	Department of Chemical Engineering and Chemistry
Degree:	Master of Science
Program:	Chemical Engineering
Document Type:	Thesis
Advisory Committee:	Salamone, Jerome J. (Committee chair) Hanesian, Deran (Committee member) Perna, Angelo J. (Committee member)
Date:	1970-06
Keywords:	Gases -- Absorption and adsorption Hydrochloric acid
Availability:	Unrestricted
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.