Research Chemical

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CHEMICAL ENGINEERING

RECENT RESEARCH - Miniaturization of Chemical Process Systems for Efficiency Enhancement

 

Efficiency of the multiphase process systems mainly depends on the interfacial area available in the systems for the transport of targeted molecules. Miniaturization is one of the novel techniques which can used to enhance the process efficiency up to 95% by increasing the interfacial area for the molecular transport. In our studies, efficiency of more than 90% has been achieved in miniaturized droplet flow multiphase reactive extraction systems where the citric acid from dilute aqueous solutions was extracted to Trioctylamine-Decanol system in circular mesoscale channels. Similar process carried out in many conventional systems have achieved efficiencies less than 30% only. The miniaturized mesoscale droplet flow systems consisted of channels with 0.9 mm diameter and 10 mm length with phase mixer having confluence angle of 120o and total flow rate of 20 mL/h. The phase mixer used in the process was fabricated using Polydimethylsiloxane (PDMS) polymer by gravity casting. The system was offering higher efficiencies even at higher flowrates with a nominal increase in the length of the channels. In addition, the phase separation in the high-volume systems is highly energy oriented and time consuming and generally accompanied with a lot of process problems. The miniaturized multiphase systems also offer an easy, cost effective and rapid in-situ phase separation using phase splitter working on the principle of unequal wetting of different surfaces by individual phases in flowing fluid mixture. The experiments with PDMS- glass based phase splitter for the separation aqueous phase from the organic phase in the above system was delivering 90% phase separation efficiency at total flow rates as high as 120 mL/h. However, a single miniaturized system limits the process volumes to very lean level and is a challenge in using the same when a large process output is expected. But the highly efficient low volume systems can be scaled out to large number of modules to accomplish higher process outputs required in commercial operations.

Major Areas of Research

  • Process Dynamics and Control
  • Polymer Nanocomposites
  • Polymer Electrolytes
  • Bioprocess Engineering
  • Microfluidics
  • Wastewater Treatment
  • Hydrophobic Surfaces
  • Materials for Energy Technology
  • Membrane Separation
  • Mathematical Modelling of Chemical Processes

RESEARCH TOPICS BY FACULTY MEMBER

Dr. Mary Thomas

Process dynamics and control

Er. Priwiya Peter

Polymer nanocomposites for aerospace applications

Dr. C. Ajith

Polymer electrolytes

Mathematical modelling of chemical processes

Dr. Lisha K. P.

Bioprocess optimization and control

Genome-scale metabolic modelling

Material development for water purification

Dr. Eldho Abraham

Miniaturization of chemical process

Conversion of plastic wastes to value added products

Bio adsorption for removal of heavy metals from effluent water

Er. Sarangi V. S.

Heavy metal removal from contaminated water

Dr. Sreekiran R. P.

Hydrophobic surface development and interaction

Analytical techniques

Dr. Prince George

Materials for energy conversion, storage and chemical sensing

Er. Anoopa Ann Thomas

Membrane based separation

Water treatment

Er. Akhil Ashokan

Kinetic modelling of hydrocarbon fuel combustion

CONTACT

Dr M D Mathew

Dean PG & Research

Saintgits College of Engineering

+91 481 2436169 [Ext-505]

mathew.md@saintgits.org

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SAINTGITS COLLEGE OF ENGINEERING

Kottukulam Hills, Pathamuttom
PO Kottayam, Pin – 686532, Kerala

Tel: +91 481 2430349, 2436169, 2436170

Email: mail@saintgits.org

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Anju Anna Jacob
Admissions Officer
+91 9895903278, +91 8129702585
anjukakkad@saintgits.org

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