#TITLE_ALTERNATIVE#

• Main Author: ADDINA PERMATA (NIM 13004107), AZIZA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/10068
• Institution: Institut Teknologi Bandung

Nowadays, needs of high purities alcohols in industry increase rapidly. Pervaporation is an alternative separation process using membrane which allows separation of alcohol-water mixtures at their azeotropic composition with low energy consumption. Separations can be obtained by using the difference of solubility and diffusivity of components. Pervaporation process performance is determined by flux and selectivity.<p> <br /> <br /> <br /> Hydrophilic membrane was used for dehydrating alcohols trough pervaporation. Previous research showed that using CA/Zeolite membrane could increase the pervaporation performance for ethanol-water separation. This research will study performance of CA/Zeolite membrane in separating alcohol-water mixtures and observe the effect of temperature toward pervaporation performance.<p> <br /> <br /> <br /> The research consists of membrane preparation, membrane characterization, and pervaporation. Feeds are ethanol-water, isopropanol-water, and 2-butanol-water mixtures at their azeotropic composition. Ethanol-water mixtures’ composition are varying at 85%-v, azeotropic, dan 98%-v. Feeds temperature are varying between 40-60°C and downstren pressure 200 mbar. Polymeric membrane cellulose acetate (CA) will be used and modification will be done by depositing 20%-wt CA of zeolite Malang in the polymeric matrix. Research found that by depositing zeolite, flux increases for about 1,35-1,4 times and selectivity increases for about 3,5-8,2 times. 2butanol-air has the largest selectivity, followed by isopropanol and ethanol.