Kinetics of absorption of CO2 into aqueous solutions of 2-amino-2-methyl-1-propanol

✍ Scribed by Asit K. Saha; Syamalendu S. Bandyopadhyay; Asok K. Biswas

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 852 KB
• Volume: 50
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(95)00187-a

✦ Synopsis

The mechanism and kinetics of the reaction between CO 2 and aqueous solution of sterically hindered amine, 2-amino-2-methyl-l-propanol (AMP), were investigated at 294-318 K by gas absorption studies using a wetted wall column. The reaction was found to be first order with respect to both CO 2 and AMP. The values of the second order rate constant were found to be 439, 687, 1179 and 1650 m3/(kmol s) at 294, 301.5, 311.5 and 318 K, respectively, in the amine concentration range 0.5-2.0 kmol/m 3. These results agree closely with those of Alper (1990, Ind. Enyny Chem. Res. 29, 1725-17281, who adopted a completely different methodology, the stopped flow technique, for investigating the kinetics of COz-AMP.