Jean-Claude Charpentier - Academia.edu (original) (raw)
Papers by Jean-Claude Charpentier
Techniques d'analyse
Notations et symboles 1 Rappels theoriques 2 Techniques experimentales de determination de ... more Notations et symboles 1 Rappels theoriques 2 Techniques experimentales de determination de la diffusivite 2.1 Mesure du flux d'absorption dans un appareil de laboratoire a aire inter-faciale connue 2.2 Technique par desorption a partir d'un liquide au repos 2.3 Technique par transfert entre une bulle et un liquide au repos 2.4 Techniques a diaphragme 2.5 Technique de diffusion a travers une couche liquide stagnante 2.6 Technique par chromatographie en phase liquide 2.7 Technique polarographique (electrode a oxygene) 2.8 Conclusion 3 Estimation a priori de diffusivites moleculaires 3.1 Diffusion d'un gaz dans une solution non electrolytique 3.2 Diffusion d'un electrolyte dans une solution Bibliographie
HAL (Le Centre pour la Communication Scientifique Directe), Sep 27, 2015
Opérations unitaires. Génie de la réaction chimique, 2015
Parmi les nombreux problemes de genie des procedes que rencontrent l’ingenieur et le pharmacien t... more Parmi les nombreux problemes de genie des procedes que rencontrent l’ingenieur et le pharmacien travaillant dans les industries chimiques, petrolieres, pharmaceutiques, cosmetiques et agroalimentaires, l’ecoulement d’un ou de plusieurs fluides a travers un milieu poreux fixe ou mobile tient une place preponderante. Il suffit de citer les principaux procedes unitaires du genie des procedes (sechage, fluidisation, sedimentation, cristallisation, distillation, echange d’ions, extraction liquide-liquide...) pour voir le nombre plethorique de canalisations, de colonnes, de cuves et de reacteurs au sein desquels le ou les procedes sont realises. De meme, pour les industries de la sante, la formulation necessite la conception, le developpement, la production et l’ecoulement de materiaux poreux (ou non poreux) fonctionnant par leur composition, leur preparation et leur agencement pour delivrer une action et rendre un service (par exemple la galenique). Apres un bref rappel des principes fondamentaux de la mecanique des fluides appliques aux cas d’ecoulements de fluides parfaits ou visqueux newtoniens dans les conduites, ce texte fournit les notions de base indispensables sur l’hydrodynamique des ecoulements dans les milieux poreux rencontres dans les procedes de sedimentation et granulation , de reactions necessitant un garnissage , de fluidisation et de filtration . Notre but est de proposer la ou les relations qui existent : entre le debit de fluide et les proprietes caracteristiques du milieu poreux mobile et des fluides pour maintenir ce milieu poreux dans les conditions optimales de fonctionnement afin de realiser le procede et d’elaborer le produit voulu (sedimentation, fluidisation) ; ou entre les pertes de charge necessaires pour assurer un debit connu et optimum de fluide, compte tenu des proprietes caracteristiques du milieu poreux fixe (reacteurs, filtration). Il est bien entendu que ce texte ne se veut nullement exhaustif et le lecteur se reportera utilement aux ouvrages hautement specialises presentes dans la bibliographie, pour une connaissance plus approfondie sur tel ou tel procede.
Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles, 2014
Cet article fait partie du dossier thématique ci-dessous publié dans la revue OGST, Vol. 69, n°5,... more Cet article fait partie du dossier thématique ci-dessous publié dans la revue OGST, Vol. 69, n°5, pp. 773-969 et téléchargeable ici D o s s i e r DOSSIER Edited by/Sous la direction de : P.-L. Carrette PART 1 Post Combustion CO 2 Capture Captage de CO 2 en postcombustion
Chemical Engineering Communications, 1983
Abstract A careful scrutinity of the literature shows on one hand the crucial industrial problems... more Abstract A careful scrutinity of the literature shows on one hand the crucial industrial problems of selectivity in gas-liquid contactors and on the other hand, reveals the limited number of theoretical and experimental studies on the topic. A theoretical approach is proposed with the scheme A gas→ A liquid A + B→ C A+ C→ D using the film theory equations involving a mass balance between the film and the bulk. An original technique for the solution of the proposed differential system shows the influence of seven nondimensional numbers on the selectivity which is in fact calculated with the help of the concentration profiles in the dissolved gas in the reactant and in the product.
HAL (Le Centre pour la Communication Scientifique Directe), 1974
Springer eBooks, 1983
Gas-liquid reactions and absorptions are widely used in five main fields of the chemical, petroch... more Gas-liquid reactions and absorptions are widely used in five main fields of the chemical, petrochemical, agro-food, pharmaceutical and energetical industries that are the liquid phase processes: oxidation, hydrogenation, sulfonation, nitration, halogenation, hydro-halogenation, alkylation, sulfation, polycondensation, polymerization... the gas scrubbing : CO2, H2S, CO, SO2, NO, NO2, NxOy, HF, SiF4, Cl2, P2O5, Phosgene, Hydrocarbons... (very often to fight against the air pollution) the manufacturing of pure products : H2SO4, HNO3, BaCO3 BaCl2, adipic acid, nitrates, phosphates... biology: aerobic fermentation, oxidation of sludges, manufacturing of proteins from hydrocarbons, biological waste treatment... multi- and two-phase flow in petroleum and nuclear engineering.
The chemical engineering journal, 1980
Experimental interfacial and mass transfer data for several bubble columns including draught tube... more Experimental interfacial and mass transfer data for several bubble columns including draught tubes are presented. Operation at high gas throughputs up to approximately 10 m s−1 corresponding to transported bed flow is considered. It is shown that, under these hydrodynamic conditions, for a given transfer flux demand the bubble columns require the same energetic cost but can be several times smaller in volume, when compared with other equipment.
International journal of petroleum technology, Nov 17, 2014
Chemical Engineering Communications, 1981
(1981). MASS TRANSFER AND PHASE DISTRIBUTION FOR TWO-PHASE FLOW THROUGH POROUS MEDIA. Chemical En... more (1981). MASS TRANSFER AND PHASE DISTRIBUTION FOR TWO-PHASE FLOW THROUGH POROUS MEDIA. Chemical Engineering Communications: Vol. 10, No. 4-5, pp. 269-281.
Chemical Engineering Science, 1980
Av =103fO denommator m their rate equation also mvolves the same factor Equabon (4) reqrures a fu... more Av =103fO denommator m their rate equation also mvolves the same factor Equabon (4) reqrures a further expressIon for the forward velocity v:-= whrch can be deduced by Langmuir-Hmshelwood kmetlcs or other appropnate assumptrons We gave such a derivahon eqmvalent the case where Steps 2 and 3 m eqn (1) are rate-controlling191 and showed that It was poss~blc to separate a potenhal factor Denvahons for a slmdar system were also presented by Blschoff and Froment[S] and applied to dehydrogenation of secondary butyl alcohol by Shah and Davrdson{lO], though m this case the assumption was made that hydrogen desorptlon rather than that of aldehydc was one of the rate-controllmg steps In that case, It would not be possible to separate a potential factor from the rate expression We belreve that the use of steady state tracmg IS thus a useful tool to effect simplification of kinetic relatronshlps where reversible reactions are mvolved
The chemical engineering journal, 1970
A convenient method is presentedfor the determination of the parameters of a model in which a flu... more A convenient method is presentedfor the determination of the parameters of a model in which a fluid in piston Jlow continuously exchanges mass with stagnant fluid. The technique is applied to the gas phase in counter-current Jlow in a trickle flow irrigated packed tower. The validity of the model is conjirmed and its predictive accuracy is compared with the axially dispersed plug flow model by convolution using the calculated parameters.
Chemical Engineering Science, Nov 1, 1970
Journal of Loss Prevention in The Process Industries, Nov 1, 2012
Thermal degradation of triacetone triperoxide (TATP) was studied using differential scanning calo... more Thermal degradation of triacetone triperoxide (TATP) was studied using differential scanning calorimetry (DSC) and gas chromatography/mass spectrometry (GC/MS). TATP, a potential explosive material, is powerful organic peroxide (OP) that can be synthesized by available chemicals, such as acetone and hydrogen peroxide in the laboratory or industries. The thermokinetic parameters, such as exothermic onset temperature (T 0) and heat of decomposition (DH d), were determined by DSC tests. The gas products from thermal degradation of TATP were identified using GC/MS technique. In this study, H 2 O 2 was mixed with propanone (acetone) and H 2 SO 4 catalysis that produced TATP. The T 0 of TATP was determined to be 40 C and E a was calculated to be 65 kJ/mol. A thermal decomposition peak of H 2 O 2 was analyzed by DSC and two thermal decomposition peaks of H 2 O 2 /propanone were determined. Therefore, H 2 O 2 /propanone mixture was applied to mix acid that was discovered a thermal decomposition peak (as TATP) in this study. According to risk assessment and analysis methodologies, risk assessment of TATP for the environmental and human safety issue was evaluated as 2-level of hazard probability rating (P) and 6-level of severity of consequences ratings (S). Therefore, the result of risk assessment is 12-point and was evaluated as "Undesirable" that should be enforced the effect of control method to reduce the risk.
Chemical Engineering Science, Jul 1, 1969
DOI to the publisher's website. • The final author version and the galley proof are versions of t... more DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal. If the publication is distributed under the terms of Article 25fa of the Dutch Copyright Act, indicated by the "Taverne" license above, please follow below link for the End User Agreement:
MATEC web of conferences, 2023
However, the demonstrations carried out are subject to caution, either due to errors, or by the u... more However, the demonstrations carried out are subject to caution, either due to errors, or by the use of the BOLTZMANN equation or the principle of least action associated with the Lagrangian (FONTEIX et al., 2020). The conference presented at the previous SFGP congress (CAMARGO et al., 2019) was based on the results of a publication (FONTEIX et al., 2020). The aim was to write the energy, momentum and matter balances in special relativity, for continuous fluid mixtures (ARZELIES, 1971). Contrary to custom, these assessments were demonstrated using 2 principles. The first is well known, it is the inseparability of space and time during a change of inertial frame (MINKOWSKI, 1907). The second is our original proposal: in the Tangent Inertial Frame of a flat space-time, the equations of the relativistic dynamics of continuous fluid mixtures and those of classical physics are identical. Thanks to this, we were able to integrate relativistic gravitation (BRAGINSKY et al., 1992) (Mc DONALD, 1997) (TARTAGLIA et al., 2004) in flat space-time (not curved) and electromagnetism. However, we had not considered nuclear reactions and quantum phenomena (SCHULMAN, 1980), nor approached relativistic thermodynamics (STRUCHTRUP, 1998). We will not do it more here, but we will see in the present conference if it is possible, based on the previous results, to make experiments whose results differ significantly from those carried out on earth, namely experiments carried out in the fastest usable vehicle currently available: the International Space Station (ISS).
Food and Bioproducts Processing, Mar 1, 2004
Techniques d'analyse
Notations et symboles 1 Rappels theoriques 2 Techniques experimentales de determination de ... more Notations et symboles 1 Rappels theoriques 2 Techniques experimentales de determination de la diffusivite 2.1 Mesure du flux d'absorption dans un appareil de laboratoire a aire inter-faciale connue 2.2 Technique par desorption a partir d'un liquide au repos 2.3 Technique par transfert entre une bulle et un liquide au repos 2.4 Techniques a diaphragme 2.5 Technique de diffusion a travers une couche liquide stagnante 2.6 Technique par chromatographie en phase liquide 2.7 Technique polarographique (electrode a oxygene) 2.8 Conclusion 3 Estimation a priori de diffusivites moleculaires 3.1 Diffusion d'un gaz dans une solution non electrolytique 3.2 Diffusion d'un electrolyte dans une solution Bibliographie
HAL (Le Centre pour la Communication Scientifique Directe), Sep 27, 2015
Opérations unitaires. Génie de la réaction chimique, 2015
Parmi les nombreux problemes de genie des procedes que rencontrent l’ingenieur et le pharmacien t... more Parmi les nombreux problemes de genie des procedes que rencontrent l’ingenieur et le pharmacien travaillant dans les industries chimiques, petrolieres, pharmaceutiques, cosmetiques et agroalimentaires, l’ecoulement d’un ou de plusieurs fluides a travers un milieu poreux fixe ou mobile tient une place preponderante. Il suffit de citer les principaux procedes unitaires du genie des procedes (sechage, fluidisation, sedimentation, cristallisation, distillation, echange d’ions, extraction liquide-liquide...) pour voir le nombre plethorique de canalisations, de colonnes, de cuves et de reacteurs au sein desquels le ou les procedes sont realises. De meme, pour les industries de la sante, la formulation necessite la conception, le developpement, la production et l’ecoulement de materiaux poreux (ou non poreux) fonctionnant par leur composition, leur preparation et leur agencement pour delivrer une action et rendre un service (par exemple la galenique). Apres un bref rappel des principes fondamentaux de la mecanique des fluides appliques aux cas d’ecoulements de fluides parfaits ou visqueux newtoniens dans les conduites, ce texte fournit les notions de base indispensables sur l’hydrodynamique des ecoulements dans les milieux poreux rencontres dans les procedes de sedimentation et granulation , de reactions necessitant un garnissage , de fluidisation et de filtration . Notre but est de proposer la ou les relations qui existent : entre le debit de fluide et les proprietes caracteristiques du milieu poreux mobile et des fluides pour maintenir ce milieu poreux dans les conditions optimales de fonctionnement afin de realiser le procede et d’elaborer le produit voulu (sedimentation, fluidisation) ; ou entre les pertes de charge necessaires pour assurer un debit connu et optimum de fluide, compte tenu des proprietes caracteristiques du milieu poreux fixe (reacteurs, filtration). Il est bien entendu que ce texte ne se veut nullement exhaustif et le lecteur se reportera utilement aux ouvrages hautement specialises presentes dans la bibliographie, pour une connaissance plus approfondie sur tel ou tel procede.
Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles, 2014
Cet article fait partie du dossier thématique ci-dessous publié dans la revue OGST, Vol. 69, n°5,... more Cet article fait partie du dossier thématique ci-dessous publié dans la revue OGST, Vol. 69, n°5, pp. 773-969 et téléchargeable ici D o s s i e r DOSSIER Edited by/Sous la direction de : P.-L. Carrette PART 1 Post Combustion CO 2 Capture Captage de CO 2 en postcombustion
Chemical Engineering Communications, 1983
Abstract A careful scrutinity of the literature shows on one hand the crucial industrial problems... more Abstract A careful scrutinity of the literature shows on one hand the crucial industrial problems of selectivity in gas-liquid contactors and on the other hand, reveals the limited number of theoretical and experimental studies on the topic. A theoretical approach is proposed with the scheme A gas→ A liquid A + B→ C A+ C→ D using the film theory equations involving a mass balance between the film and the bulk. An original technique for the solution of the proposed differential system shows the influence of seven nondimensional numbers on the selectivity which is in fact calculated with the help of the concentration profiles in the dissolved gas in the reactant and in the product.
HAL (Le Centre pour la Communication Scientifique Directe), 1974
Springer eBooks, 1983
Gas-liquid reactions and absorptions are widely used in five main fields of the chemical, petroch... more Gas-liquid reactions and absorptions are widely used in five main fields of the chemical, petrochemical, agro-food, pharmaceutical and energetical industries that are the liquid phase processes: oxidation, hydrogenation, sulfonation, nitration, halogenation, hydro-halogenation, alkylation, sulfation, polycondensation, polymerization... the gas scrubbing : CO2, H2S, CO, SO2, NO, NO2, NxOy, HF, SiF4, Cl2, P2O5, Phosgene, Hydrocarbons... (very often to fight against the air pollution) the manufacturing of pure products : H2SO4, HNO3, BaCO3 BaCl2, adipic acid, nitrates, phosphates... biology: aerobic fermentation, oxidation of sludges, manufacturing of proteins from hydrocarbons, biological waste treatment... multi- and two-phase flow in petroleum and nuclear engineering.
The chemical engineering journal, 1980
Experimental interfacial and mass transfer data for several bubble columns including draught tube... more Experimental interfacial and mass transfer data for several bubble columns including draught tubes are presented. Operation at high gas throughputs up to approximately 10 m s−1 corresponding to transported bed flow is considered. It is shown that, under these hydrodynamic conditions, for a given transfer flux demand the bubble columns require the same energetic cost but can be several times smaller in volume, when compared with other equipment.
International journal of petroleum technology, Nov 17, 2014
Chemical Engineering Communications, 1981
(1981). MASS TRANSFER AND PHASE DISTRIBUTION FOR TWO-PHASE FLOW THROUGH POROUS MEDIA. Chemical En... more (1981). MASS TRANSFER AND PHASE DISTRIBUTION FOR TWO-PHASE FLOW THROUGH POROUS MEDIA. Chemical Engineering Communications: Vol. 10, No. 4-5, pp. 269-281.
Chemical Engineering Science, 1980
Av =103fO denommator m their rate equation also mvolves the same factor Equabon (4) reqrures a fu... more Av =103fO denommator m their rate equation also mvolves the same factor Equabon (4) reqrures a further expressIon for the forward velocity v:-= whrch can be deduced by Langmuir-Hmshelwood kmetlcs or other appropnate assumptrons We gave such a derivahon eqmvalent the case where Steps 2 and 3 m eqn (1) are rate-controlling191 and showed that It was poss~blc to separate a potenhal factor Denvahons for a slmdar system were also presented by Blschoff and Froment[S] and applied to dehydrogenation of secondary butyl alcohol by Shah and Davrdson{lO], though m this case the assumption was made that hydrogen desorptlon rather than that of aldehydc was one of the rate-controllmg steps In that case, It would not be possible to separate a potential factor from the rate expression We belreve that the use of steady state tracmg IS thus a useful tool to effect simplification of kinetic relatronshlps where reversible reactions are mvolved
The chemical engineering journal, 1970
A convenient method is presentedfor the determination of the parameters of a model in which a flu... more A convenient method is presentedfor the determination of the parameters of a model in which a fluid in piston Jlow continuously exchanges mass with stagnant fluid. The technique is applied to the gas phase in counter-current Jlow in a trickle flow irrigated packed tower. The validity of the model is conjirmed and its predictive accuracy is compared with the axially dispersed plug flow model by convolution using the calculated parameters.
Chemical Engineering Science, Nov 1, 1970
Journal of Loss Prevention in The Process Industries, Nov 1, 2012
Thermal degradation of triacetone triperoxide (TATP) was studied using differential scanning calo... more Thermal degradation of triacetone triperoxide (TATP) was studied using differential scanning calorimetry (DSC) and gas chromatography/mass spectrometry (GC/MS). TATP, a potential explosive material, is powerful organic peroxide (OP) that can be synthesized by available chemicals, such as acetone and hydrogen peroxide in the laboratory or industries. The thermokinetic parameters, such as exothermic onset temperature (T 0) and heat of decomposition (DH d), were determined by DSC tests. The gas products from thermal degradation of TATP were identified using GC/MS technique. In this study, H 2 O 2 was mixed with propanone (acetone) and H 2 SO 4 catalysis that produced TATP. The T 0 of TATP was determined to be 40 C and E a was calculated to be 65 kJ/mol. A thermal decomposition peak of H 2 O 2 was analyzed by DSC and two thermal decomposition peaks of H 2 O 2 /propanone were determined. Therefore, H 2 O 2 /propanone mixture was applied to mix acid that was discovered a thermal decomposition peak (as TATP) in this study. According to risk assessment and analysis methodologies, risk assessment of TATP for the environmental and human safety issue was evaluated as 2-level of hazard probability rating (P) and 6-level of severity of consequences ratings (S). Therefore, the result of risk assessment is 12-point and was evaluated as "Undesirable" that should be enforced the effect of control method to reduce the risk.
Chemical Engineering Science, Jul 1, 1969
DOI to the publisher's website. • The final author version and the galley proof are versions of t... more DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal. If the publication is distributed under the terms of Article 25fa of the Dutch Copyright Act, indicated by the "Taverne" license above, please follow below link for the End User Agreement:
MATEC web of conferences, 2023
However, the demonstrations carried out are subject to caution, either due to errors, or by the u... more However, the demonstrations carried out are subject to caution, either due to errors, or by the use of the BOLTZMANN equation or the principle of least action associated with the Lagrangian (FONTEIX et al., 2020). The conference presented at the previous SFGP congress (CAMARGO et al., 2019) was based on the results of a publication (FONTEIX et al., 2020). The aim was to write the energy, momentum and matter balances in special relativity, for continuous fluid mixtures (ARZELIES, 1971). Contrary to custom, these assessments were demonstrated using 2 principles. The first is well known, it is the inseparability of space and time during a change of inertial frame (MINKOWSKI, 1907). The second is our original proposal: in the Tangent Inertial Frame of a flat space-time, the equations of the relativistic dynamics of continuous fluid mixtures and those of classical physics are identical. Thanks to this, we were able to integrate relativistic gravitation (BRAGINSKY et al., 1992) (Mc DONALD, 1997) (TARTAGLIA et al., 2004) in flat space-time (not curved) and electromagnetism. However, we had not considered nuclear reactions and quantum phenomena (SCHULMAN, 1980), nor approached relativistic thermodynamics (STRUCHTRUP, 1998). We will not do it more here, but we will see in the present conference if it is possible, based on the previous results, to make experiments whose results differ significantly from those carried out on earth, namely experiments carried out in the fastest usable vehicle currently available: the International Space Station (ISS).
Food and Bioproducts Processing, Mar 1, 2004