(98ac) Biphasic Liquid Flows and Mass Transfer Characterization in Y Junction Microstructured Contactors Conference: AIChE Annual MeetingYear: 2013Proceeding: 2013 AIChE Annual MeetingGroup: Engineering Sciences and FundamentalsSession: Poster Session: Fluid Mechanics (Area 1j) Time: Monday, November 4, 2013 - 11:00am-12:30pm Authors: Sahu, A., Indian Institute of Technology, Madras, Chennai (T.N.) India Pushpavanam, S., Indian Institute of Technology, Madras Microstructured contactor forms an important tool for process intensification in multiphase systems.Liquid-Liquid extraction is a key mass transfer operation in the chemical, food process andpharmaceutical industries. High mass transfer rates compared to conventional equipment and ease ofhandling of two-phase flows make microstructured contactors an ideal choice for extraction studies. Ourwork focuses on quantifying this improvement in mass transfer by carrying out extraction experimentsin Y-Junction glass micro structured contactor with square cross-section of 150 x 150 μm. Amathematical treatment of these physical phenomena is done from basic flow equations and a model isdeveloped for the same. Cyclohexane (organic) and water (aqueous) are chosen as solvents for flowregime characterization. Propionic acid is used as the solute to be extracted from the organic to theaqueous phase. The experimental results are used to determine the mass transfer coefficient. Comparative analysis will be done for estimating mass transfer coefficients in batch, slug and stratified flows. Effect of different solvents, slug sizes and the presence of thin film between slug and wall will also be highlighted. Conditions under whichmicrostructured contactors can be preferred to the conventional systems will be obtained.