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THE VISIT OF DR. LIONEL POURTIER AT THE SZCZECIN UNIVERSITY OF TECHNOLOGY ADSORPTION RESEARCH INTERESTS IN THE FIELD OF ENVIRONMENTAL PROTECTION J. F. Nastaj Faculty of Chemical Engineering Szczecin University of Technology Szczecin, POLAND Presented at Seminary: Environment Protection at the Department of Chemical Engineering and Environmental Protection Processes 12 May 2005 1 ADSORPTION RESEARCH TEAM Bogdan AMBROŻEK, PhD Elżbieta MAŁACHOWSKA Małgorzata CHYBOWSKA, MSc Filip MOSKAL, MSc Dorota DOWNAROWICZ, PhD Józef NASTAJ, Prof. TU Elżbieta GABRUŚ, PhD Mścisław PADEREWSKI, Prof. Marek KOŚMIŃSKI Joanna RUDNICKA , MSc Krzysztof LACH, PhD Konrad WITKIEWICZ, MSc Book: PADEREWSKI, M. L.,”Adsorption Processes in Chemical Engineering”, WNT Warszawa, 1999 (in Polish). 2 RESEARCH INTERESTS Theoretical and Experimental Studies of Removing and Recovery of Volatile Organic Compounds (VOCs) from Waste Gases Electrothermal Methods of Adsorbents Regeneration Membrane – Adsorption Hybrid Processes Measurements and Prediction of Adsorption Equilibria 3 THEORETICAL AND EXPERIMENTAL STUDIES OF REMOVING AND RECOVERY OF (VOCs) FROM WASTE GASES Cyclic Thermal Swing Adsorption (TSA) Systems with: Fixed Bed of Granular Activated Carbon Fixed Bed of Granular Polymeric Adsorbent Closed Cycle of Purge Gas Recycle of Purge Gas 4 THEORETICAL AND EXPERIMENTAL STUDIES OF REMOVING AND RECOVERY OF (VOCs) FROM WASTE GASES (continued) Cyclic Combined Vacuum and Thermal Swing Adsorption Systems (VTSA) with: Fixed Bed of Granular Activated Carbon Fixed Bed of Granular Polymeric Adsorbent Recycle of Purge Gas 5 CYCLIC SINGLE FIXED BED THERMAL SWING ADSORPTION (TSA) SYSTEM AMBROŻEK B., ”Experimental and theoretical studies of cyclic thermal swing adsorption process for the removal and recovery of volatile organic compounds from waste air streams”, Inż. Chem. Proc., 25, 570-576 (2004). 1 - Pressure control valve 2 - Dryer 3 - Needle Valve 4 - Rotameter 5 - Static mixer 6 - Liquid solvent 7 - Heat Exchanger 8 - Plug Valve 9 - Heater 10 - Insulated Adsorber 11 - Condenser 12 - Separator 13 - Measuring cylinder D - Dispenser S - Sampling point TR - Temperature Recorder TC - Temperature Controller 6 CYCLIC TWO FIXED BED COMBINED VACUUM AND THERMAL SWING ADSORPTION SYSTEMS (VTSA) 7 MEMBRANE–ADSORPTION HYBRID PROCESSES Membrane Processes for Preconcentration: Microfiltration (MF) Ultrafiltration (UF) Nanofiltration (NF) Thermal Swing Adsorption (TSA) in Liquid Phase: Dehydratation of Alcohols - Water Azeotrope Systems on Zeolite Molecular Sieves Removing of Organic Pollutants from Water on Activated Carbons 8 MEMBRANE–ADSORPTION HYBRID PROCESS EXAMPLE Anhydrous Ethanol Production by Fermentation of Waste Lactose WOJTYNIAK B., GABRUŚ E., SZANIAWSKA D., ”Conversion of waste lactose to ethanol and lactic acid using hybrid biomembrane-adsorption processes”, Membr. Sci. and Techn. Conf. PERMEA 2003. Whey permeate Lactose preconcentration (NF) R1 Fermentation + UF R2 P2 R – Retentate NF – Nanofiltration Concentrated ethanol Anhydrous ethanol – Permeate UF – Ultrafiltration Ethanol concentration (PV) Ethanol dehydratation (TSA) P PV – Pervaporation TSA – Thermal Swing Adsorption Water for use 9 ELECTROTHERMAL METHODS OF ADSORBENTS REGENERATION Electrothermal Temperature Swing Adsorption (ETSA): Removing of VOCs from Off-gases – Adsorption on Activated Carbon Fixed Bed Regeneration of Activated Carbon Bed by Means of Direct Electric Heating and Recovery of VOCs DOWNAROWICZ D., NASTAJ J., ”Development of an granular activated carbon adsorption/ Electrothermal regeneration system to VOCs recovery”, CHISA 2004, Proceedings, Paper: P3.169, 1-13. NASTAJ J., DOWNAROWICZ D., ”Numerical model of internal heat source capacity in desorption step of ETSA process”, Int. Comm. in Heat and Mass Transfer, 32 (6), 779-785 (2005). 10 ELECTROTHERMAL METHODS OF ADSORBENTS REGENERATION (continued) Adsorption/Regeneration VOCs system – Use of Induction Heating : Removing of VOCs from Off-gases – Adsorption on Modified Activated Carbon Bed Seeking of More Efficient Methods of Internal Heat Source Capacity Generation During VOCs Desorption by Induction Heating MOSKA F., NASTAJ J., ”Inductive heating of fixed bed of activated carbon”, Przemysł Chemiczny, 2003, 82, 22-26 (in Polish). MOSKA F., NASTAJ J. , ”Improvement induction heating efficiency of bed composed of activated carbon and iron granular mixture”, CHISA 2004, Proceedings, Paper: P3.168, 1-13. 11 ELECTROTHERMAL TEMPERATURE SWING ADSORPTION (ETSA) Experimental Equipment of Adsorption/Electrothermal Regeneration System - DIRECT RESISTANCE HEATING APPLICATION C 5 2c 6 1 - Drying column nitrogen to atmosphere C 4 2 - Rotameter 3 - Gas washing bottle 4 - Mixer 2b 7 2a 5 - Adsorption column 6 - Auxiliary adsorber C 3 7 - Condensation unit condensate 1 8 - Auxiliary adsorber 8 to atmosphere air 12 ADSORPTION/REGENERATION VOCS SYSTEM – INDUCTION HEATING APPLICATION Experimental Setup Z4 1 1 - Adsorption column 5 6 2 - Coil winding 10 T C A Z5 2 9 C T C T 3 - Flowmeter 11 4 - Saturator Z2 V T C T C T 3 4 5 - Metering pump 6 - Protective column Z1 7 - Condenser T C ZR2 ZR1 8 - Condensate receiver 7 COOLING WATER C Z7 NITROGEN Z6 COMPRESSED AIR Z3 9 - Supply system 10 - Current converter 11 - Voltage converter 8 13 MEASUREMENTS AND PREDICTION OF ADSORPTION EQUILIBRIA Adsorption Equilibria for Single Component Systems Multicomponent Adsorption Equilibria Adsorption Equilibria of Mixtures for Polar and Non- Polar Components Nonisothermal Adsorption Equilibria 14 MULTICOMPONENT ADSORPTION EQUILIBRIA Experimental Apparatus AMBROŻEK B., JABŁOŃSKI M., ”Measurement and prediction of adsorption equilibria of ternary mixture of acetone, methanol and benzene on activated carbon”, Inż. Chem. Proc., 25, 563-569 (2004). 1 - Dryier 2 - Rotameters 3 - Washing bottles 4 - Mixer 5 - Heater 6 - U-tube 7 - Cold trap 15 Thank You for Your Atention !!! 16