Anchaleeporn Waritswat. A study of general solid-liquid mass transfer correlation in standard agitated vessel. Master's Degree(Chemical Engineering). Chulalongkorn University. Office of Academic Resources. : Chulalongkorn University, 1987.
A study of general solid-liquid mass transfer correlation in standard agitated vessel
Abstract:
This work is a contribution to the study of general soild liquid mass transfer coefficient correlation in standard agitated vessel. Solids of different densities are suspended in different liquids, water, 13 wt%, 20 wt% and 35.5 wt% sucrose solution respectively. It is found that density difference (△p) not greater than 0.4 g/cm³ had insignificant effect on the mass transfer coefficient. In the study the temperatures are between 25°C to 45°C and the speeds of rotation between 250 rpm to 550 rpm. Results obtained are shown and correlated in terms of dimensionless number SHᴩ = rRe¹˙²¹ Sc⁰˙⁵⁰ This correlation is valid for Reynolds number in the range of 1.04x10 ⁴ to 7.7x10⁴ and Schmidt number in the range of 411 to 14,318. The constant r depends on the systems in the experiment. In the system of benzoic acid coated on glass beads, polystyrene spheres, plastic particles type 1 and type 2 and water, 13 wt%, 20 wt% and 35.5 wt% sucrose solution, the constant r is 1.90x10⁻⁵, 3.00x10⁻⁵, 3.57x10⁻⁵และ 6.48x10⁻⁵ respectively. The correlations obtained for the systems are as follows The system of benzoic acid coated on various materials water. SHᴩ = 1.90x10⁻⁵ Rep¹˙²¹ Sc⁰˙⁵⁰ 4x10⁴