22-09-2014, 01:34 PM
Abstracts: Bodal Chemical Ltd is producing useful chemical dyes intermediate, one of its main product is vinyl sulphone and acetic acid is byproduct produced by batch process. Purpose of our project is to find alternatives or solutions to following major engineering problems which are: (1)To improve HCl (Hydrochloric acid) recovery system: (2)To improve SO2 (Sulfur dioxide) recovery system: 1. Concentration of HCl from falling film absorber is 35% - 37% while the same from adiabatic packed tower ranges from 25% to 30%. 2. Absorption is more efficient in falling film absorber for the given absorption duty. 3. Falling film absorber requires less space compared to adiabatic packed tower type absorber. 4. Other advantages of falling film absorber are lower temperatures, lower pressure drops and higher efficiency. 5.Consumption of caustic in caustic scrubber for neutralization almost negligible