Year: 2017 | Month: June | Volume: 4 | Issue: 6 | Pages: 24-27
Wetted Wall Column: Review on Studies and Investigations
Sunil Jayant Kulkarni
Datta Meghe College of Engineering, Airoli, Navi Mumbai, Maharashtra, India
The mass transfer coefficients are strongly dependent on diffusivity. The diffusion along with convection explains mechanism of mass transfer coefficients. Various theories predict different dependence on diffusivity. Film theory, surface renewal theory, surface stretch theory etc. predict direct relation between mass transfer coefficients and diffusivity, though in different magnitude. The wetted column is normally used to study mass transfer coefficient in laminar region. Gas absorption with different solvents has been studied by various investigators. Studies indicated that lower cost, less toxicity of potassium carbonate can be advantage over monoethanolamine (MEA). The major drawback is low absorption rate owing to poor mass transfer. It was found that fluid flow rates and temperature had significant effects on the variables studied.
Key words: Mass transfer coefficient, diffusivity, temperature, pressure.[PDF Full Text]