Absorption of sulfur dioxide by urea

Dissertant

Dukhayyil, Ihsan Habib

University

University of Technology

Faculty

-

Department

Department of Chemical Engineering

University Country

Iraq

Degree

Master

Degree Date

2004

English Abstract

The present research focuses absorption of sulfur dioxide using a dilute solution of urea.

The absorption process was carried out in a packed column of (50 cm length and 7.5 cm diameter) the column is packed to a height of 45 cm with glass Rashid-rings (6 mmx6 mm).

The effects of three operating variables : Sulfur dioxide concentration, Xi = (500 - 2500 ppm) Concentration of urea solution X2 = (0.01 - 0.05 Mole.

rl) Temperature of absorbent solution, X3= (5 - 35 °C) on the efficiency of absorption were studied.

Box-Wilson experimental design method was used to establish a mathematical model relating the efficiency of removal of SO? to the three variables investigated by a second - order surface polynomial which gave : Y = 88.66857 + 0.005377 X! + 84.93197 X 2.

0.088102 X 3 12.000 X 2 - 953.3868 X22 - 0.003461 X 32 The optimum operating conditions corresponding to the maximum absorption efficiency were ; Concentration of sulfur dioxide = 2240 ppm Concentration of urea solution = 0.0445 Mole, r1 Temperature of absorbent solution = 12.7 °C The maximum absorption efficiency at these conditions was (97.14 %).

Taking into account the economic aspects of the method, the regeneration stage was performed for the urea solution and the resulting ~r regenerated solution was reused for further absorption.

Main Subjects

Chemical Engineering

Topics

• Absorption

• APA
• MLA
• AMA

Language

English

Data Type

Arab Theses

Record ID

BIM-305897