Koffi FIATY

Maître de Conférences

  • Systèmes Non Linéaires et Procédés

Procédés


Bureau 1 Université Claude Bernard Lyon 1, bât 308G ESCPE-Lyon, 43 bd du 11 Novembre 1918 G319 Villeurbanne 69622 France

Téléphone bureau 1: 04 72 43 18 92

Bio

 

 

Characterization of hydrodynamics in membrane chromatography devices using magnetic resonance imaging and computational fluid dynamics

date:2016
références bibliographiques:

Teepakorn, Chalore, Denis Grenier, Koffi Fiaty, and Catherine Charcosset. “Characterization of Hydrodynamics in Membrane Chromatography Devices Using Magnetic Resonance Imaging and Computational Fluid Dynamics.” 113 (September 2016): 61–73. https://doi.org/10.1016/j.cherd.2016.06.027.
Pages:61-73

Chemical Engineering Research and Design

 

Fault Detection Identification and Isolation via high-gain observer in a Semi Continuous Stirred Tank Reactor

date:2016
références bibliographiques:

Abdelkader, A., Moez Boussada, Koffi Fiaty, and Hassan Hammouri. “Fault Detection Identification and Isolation via High-Gain Observer in a Semi Continuous Stirred Tank Reactor.” 10, no. 1 (April 2016): 2055–61. http://www.sta-tn.com/IJ_STA/Papers/volume_10N1_April_2016/P1_IJSTA_V10N1_SI_AND_16.pdf.
Pages:2055-2061

International Journal of Sciences and Techniques of Automatic control & computer engineering

 

Sorption de biomolécules par membrane échangeuse d’ions : étude expérimentale et modélisation

date:2016
références bibliographiques:

Teepakorn, Chalore, Catherine Charcosset, and Koffi Fiaty. “Sorption de Biomolécules Par Membrane échangeuse D’ions : étude Expérimentale et Modélisation.” , January 2016. doi:10.1016/j.crci.2015.11.017.

Comptes Rendus Chimie

 

A Review on Some Recent Advances on Membrane Chromatography for Biomolecules Purification

date:2016
références bibliographiques:

Teepakorn, Chalore, Koffi Fiaty, and Catherine Charcosset. “A Review on Some Recent Advances on Membrane Chromatography for Biomolecules Purification.” 5, no. 1 (2016): 32–44. https://doi.org/10.1166/jcsb.2016.1132.
Pages:32-44

Journal of Colloid Science and Biotechnology

 

Optimization of lactoferrin and bovine serum albumin separation using ion-exchange membrane chromatography

date:2015
références bibliographiques:

Teepakorn, Chalore, Koffi Fiaty, and Catherine Charcosset. “Optimization of Lactoferrin and Bovine Serum Albumin Separation Using Ion-Exchange Membrane Chromatography.” 151 (September 2015): 292–302. doi:10.1016/j.seppur.2015.07.046.
Pages:292-302

Separation and Purification Technology

 

Effect of geometry and scale for axial and radial flow membrane chromatography—Experimental study of bovin serum albumin adsorption

date:2015
références bibliographiques:

Teepakorn, Chalore, Koffi Fiaty, and Catherine Charcosset. “Effect of Geometry and Scale for Axial and Radial Flow Membrane chromatography—Experimental Study of Bovin Serum Albumin Adsorption.” 1403 (July 2015): 45–53. https://doi.org/10.1016/j.chroma.2015.05.023.
Pages:45-53

Journal of Chromatography A

 

Effect of geometry and scale for axial and radial flow membrane chromatography—Experimental study of bovin serum albumin adsorption

date:2015
références bibliographiques:

Teepakorn, Chalore, Koffi Fiaty, and Catherine Charcosset. “Effect of Geometry and Scale for Axial and Radial Flow Membrane chromatography—Experimental Study of Bovin Serum Albumin Adsorption.” 1403 (July 2015): 45–53. doi:10.1016/j.chroma.2015.05.023.
Pages:45-53

Journal of Chromatography A

 

Optimization of lactoferrin and bovine serum albumin separation using ion-exchange membrane chromatography

date:2015
références bibliographiques:

Teepakorn, Chalore, Koffi Fiaty, and Catherine Charcosset. “Optimization of Lactoferrin and Bovine Serum Albumin Separation Using Ion-Exchange Membrane Chromatography.” 151 (September 2015): 292–302. https://doi.org/10.1016/j.seppur.2015.07.046.
Pages:292-302

Separation and Purification Technology

 

Comparison of Membrane Chromatography and Monolith Chromatography for Lactoferrin and Bovine Serum Albumin Separation

date:2015
références bibliographiques:

Teepakorn, Chalore, Koffi Fiaty, and Catherine Charcosset. “Comparison of Membrane Chromatography and Monolith Chromatography for Lactoferrin and Bovine Serum Albumin Separation.” 4, no. 3 (2015): 31. https://doi.org/10.3390/pr4030031.
Pages:31

Processes

 

Novel inductively-heated catalytic system for fast VOCs abatement, application to IPA in air

Abstract Pt-Al2O3, Al2O3 and SnO2 were deposited as thin films on a stainless steel support that was inserted into an annular reactor and heated using an electromagnetic induction device. Possibility of an accurate temperature control was demonstrated and heating rates up to 800 °C min−1 were obtained. Total abatement of 1000 ppm isopropyl alcohol (IPA) was achieved at low temperature (T50 about 80 °C) on 1 wt% Pt/Al2O3. Nevertheless, the strong IPA adsorption on the alumina support and the formation of large amounts of acetone dictated to select the other catalyst, SnO2. IPA 90% conversion into CO2 and H2O was then obtained at 250 °C with a total flow of 100 NmL min−1 containing 1000 ppm IPA. Considering the volume of the very thin reactive sheath (hydraulic diameter about 3.6 mm), ghsv was as high as 2.6 × 103 h−1. Total abatement to CO2 and H2O of high amounts of IPA (about 1 vol%) in air was achieved in less than 30 s and near-room temperature was recovered quickly when the contaminant level at the reactor inlet felled again below a given threshold.

date:2014
références bibliographiques:

Leclercq, J., F. Giraud, D. Bianchi, K. Fiaty, and F. Gaillard. “Novel Inductively-Heated Catalytic System for Fast VOCs Abatement, Application to IPA in Air.” 146 (2014): 131–37. https://doi.org/10.1016/j.apcatb.2013.03.049.
Pages:131-137

Applied Catalysis B: Environmental

 

Novel inductively-heated catalytic system for fast VOCs abatement, application to IPA in air

Abstract
Pt-Al2O3, Al2O3 and SnO2 were deposited as thin films on a stainless steel support that was inserted into an annular reactor and heated using an electromagnetic induction device. Possibility of an accurate temperature control was demonstrated and heating rates up to 800 °C min−1 were obtained. Total abatement of 1000 ppm isopropyl alcohol (IPA) was achieved at low temperature (T50 about 80 °C) on 1 wt% Pt/Al2O3. Nevertheless, the strong IPA adsorption on the alumina support and the formation of large amounts of acetone dictated to select the other catalyst, SnO2. IPA 90% conversion into CO2 and H2O was then obtained at 250 °C with a total flow of 100 NmL min−1 containing 1000 ppm IPA. Considering the volume of the very thin reactive sheath (hydraulic diameter about 3.6 mm), ghsv was as high as 2.6 × 103 h−1. Total abatement to CO2 and H2O of high amounts of IPA (about 1 vol%) in air was achieved in less than 30 s and near-room temperature was recovered quickly when the contaminant level at the reactor inlet felled again below a given threshold

date:2013
références bibliographiques:

Leclercq, J., F. Giraud, D. Bianchi, K. Fiaty, and F. Gaillard. “Novel Inductively-Heated Catalytic System for Fast VOCs Abatement, Application to IPA in Air.” , 2013, 131–37. doi:10.1016/j.apcatb.2013.03.049.
Pages:131-137

Applied Catalysis B: Environmental

 

Modelling nitrate reduction in a flow-through catalytic membrane contactor: Role of pore confining effects on water viscosity

Nitrate hydrogenation has been largely considered as an eco-friendly strategy for nitrate abatement in drinking water to meet more and more stringent emission targets. Nitrate conversion on conventional Pd–Cu catalysts can be dramatically promoted in catalytic membrane reactors operating in flow-through configuration. In a previous study (Wehbe et al. [14]), we have reported an unexpected result: the nitrate conversion increases with the transmembrane flowrate when operating with mesoporous top layers (pore size < 10 nm), opposing to the expected inverse trend from basic Reactor Engineering concepts. Moreover, at a given flowrate, the catalytic activity increased with a reduction of the pore size. To provide a rationale on such effects, we present here a coupled model of concentration polarization and ionic solute transport within membrane pores. Mass transfer within the membrane top layer has been modelled using the extended Nernst–Planck equations (convection–diffusion–migration) combined with Donnan steric partitioning and dielectric exclusion at both membrane/solution interfaces. In addition to concentration polarization effects, a potential increase of the solvent viscosity under confinement, involving unexpectedly low ionic and hydrogen diffusivities under nanoconfinement, is argued as the underlying reason for such effects.

date:2012
références bibliographiques:

Pera-Titus, M., M. Fridmann, N. Guilhaume, and K. Fiaty. “Modelling Nitrate Reduction in a Flow-through Catalytic Membrane Contactor: Role of Pore Confining Effects on Water Viscosity.” 401–2 (15, 2012): 204–16. https://doi.org/10.1016/j.memsci.2012.02.003.
Pages:204-216

Journal of Membrane Science

 

Shunt Concept for Specific Active Transport Using Enzymatic Membranes: Review and Prospects

date:2012
références bibliographiques:

Charcosset, Catherine, Bernard Perrin, Bernard Maïsterrena, and Koffi Fiaty. “Shunt Concept for Specific Active Transport Using Enzymatic Membranes: Review and Prospects.” 41, no. 2 (April 2012): 126–42. doi:10.1080/15422119.2011.580821.
Pages:126-142

Separation & Purification Reviews

 

Shunt Concept for Specific Active Transport Using Enzymatic Membranes: Review and Prospects

Artifical enzymatic membranes (AEMs) were conceived with the aim of replicating the active transport found in vivo. The shunt concept has recently emerged from the use of two enzymes catalysing two opposite reactions occurring on both parts of a porous charged membrane (+ or −) and able to specifically add/remove (or the contrary) a charged group (+ or −) on the selected molecule to be transported. Historically, the Phosphatase (P)/Kinase (K) couple (or its inverse), frequently found in nature, was selected for creating these shunts. Modelling of these transports was realized using the Nernst-Planck equation. In parallel, experimental studies were conducted proving that these shunt topologies, involving enzymatic membranes, lead to specific and active solute transports at physiological temperature and pressure. Issuing from this concept, recent technological prospects, such as the specific separation and concentration of (L) substrate from the (D/L) racemic mixture and the selective transport of neutral molecules by electrophoresis, are presented. This review presents the main results obtained using polymeric membranes linked to enzymes with the aim of replicating the active transport found in vivo.

date:2012
références bibliographiques:

Charcosset, Catherine, Bernard Perrin, Bernard Maïsterrena, and Koffi Fiaty. “Shunt Concept for Specific Active Transport Using Enzymatic Membranes: Review and Prospects.” 41, no. 2 (2012): 126–42. https://doi.org/10.1080/15422119.2011.580821.
Pages:126-142

Separation & Purification Reviews

 

Comparing monolithic and membrane reactors in catalytic oxidation of propene and toluene in excess of oxygen

The catalytic oxidation of propene has been studied as a model chemical reaction, in order to compare performances of a conventional monolithic reactor and a flow-through membrane reactor (contactor type [1]). These formers are different by their configurations but have the same catalytic system: Pt/Al2O3. The results report the catalytic performance of the two reactors in the catalytic oxidation of VOCs in excess of oxygen. In our operating conditions, the most efficient process is the flow-through catalytic membrane reactor.

date:2010
références bibliographiques:

Bénard, S., A. Giroir-Fendler, P. Vernoux, N. Guilhaume, and K. Fiaty. “Comparing Monolithic and Membrane Reactors in Catalytic Oxidation of Propene and Toluene in Excess of Oxygen.” 156, no. 3–4 (October 31, 2010): 301–5. doi:10.1016/j.cattod.2010.07.019.
Pages:301-305

Catalysis Today

 

Hydrogenation of nitrates in water using mesoporous membranes operated in a flow-through catalytic contactor

The hydrogenation of nitrates in aqueous solution has been studied using Pd–Cu catalysts deposited in mesoporous ceramic membranes operated in a flow-through catalytic membrane reactor. The effect of the top-layer pore size (5, 10 or 25 nm) on the catalytic activity was explored. The activity increased with trans-membrane flow rate for the three membranes, although moderately with the 25 nm pore membrane. At a similar flow rate, the activity increased when the pore size decreased. Concentration polarization of nitrates was evidenced by ultrafiltration experiments with bare membranes, and was enhanced when the pore size decreased. Concentration polarization appeared effective in improving the catalytic activity, due to a local increase in nitrate concentration in the catalytic top-layer of the membranes.

date:2010
références bibliographiques:

Wehbe, Najah, Nolven Guilhaume, Koffi Fiaty, Sylvain Miachon, and Jean-Alain Dalmon. “Hydrogenation of Nitrates in Water Using Mesoporous Membranes Operated in a Flow-through Catalytic Contactor.” 156, no. 3–4 (October 31, 2010): 208–15. doi:10.1016/j.cattod.2010.04.048.
Pages:208-215

Catalysis Today

 

High-performance catalytic wet air oxidation (CWAO) of organic acids and phenol in interfacial catalytic membrane contactors under optimized wetting conditions

date:2010
références bibliographiques:

Alame, M., A. Abusaloua, M. Pera-Titus, N. Guilhaume, Koffi Fiaty, and A. Giroir-Fender. “High-Performance Catalytic Wet Air Oxidation (CWAO) of Organic Acids and Phenol in Interfacial Catalytic Membrane Contactors under Optimized Wetting Conditions.” , no. 157 (2010): 327–33. doi:10.1016/j.cattod.2010.03.009.
Pages:327-333

Catalysis Today