Eugeny Kenig - Profile on Academia.edu (original) (raw)

Papers by Eugeny Kenig

This work summarises the research and technological achievements of the EC funded research projec... more This work summarises the research and technological achievements of the EC funded research project OPT-ABSO. The major innovation of the present project is the development of a fully integrated set of modelling, simulation, and optimisation methodologies, and computer-aided tools for the design, synthesis, control, and efficient operation of sustainable industrial absorption processes. The aim of cost, waste and energy reduction and the development of realistic operating strategies for practical implementation are facilitated through an interactive software framework.

Design of Reactive Distillation

Reactive distillation (RD) is a process that combines reaction and distillation into one step. Th... more Reactive distillation (RD) is a process that combines reaction and distillation into one step. Though the advantages of RD are well documented it's commercial applications are still few. Reasons to this are the complexity of the process, lack of knowledge to design these systems, need for improved software tools to evaluate and design RD, and limited number of suitable catalyst and equipment to place catalyst inside the column. To overcome these obstacles a three-year project "Reactive distillation" initiated by SUSTECH and supported by EU in the frame of the BriteEuram III program was formed. The consortium consists of the companies Neste Oyj (Finland, Co-ordinator), BP Chemicals (Great Britain), Hoechst (Germany), BASF (Germany), Snamprogetti (Italy), and universities of Clausthal (Germany), Dortmund (Germany), Aston (Great Britain), Bath (Great Britain) and Helsinki University of Technology (Finland). This paper presents an overview of the progress of the project an...

Dynamic Simulation of Reactive Absorption Processes for the Purification of Coke Oven Gases

Investigation of multicomponent mass transfer in liquid-liquid extraction systems at microscale

International Journal of Heat and Mass Transfer, Sep 1, 2010

ABSTRACT

Chem Eng Technol, 2009

N-Ethylethanolamine (EEA) and N,N-diethylethanolamine (DEEA) represent promising candidate alkano... more N-Ethylethanolamine (EEA) and N,N-diethylethanolamine (DEEA) represent promising candidate alkanolamines for CO 2 removal from gaseous streams, as they can be prepared from renewable resources. In this work, the reaction rate constant for the reaction between CO 2 and EEA was determined from the absorption rate measurements of CO 2 in a blend comprising DEEA, EEA and H 2 O. A stirred-cell reactor with a plane, horizontal gas-liquid interface was used for the absorption studies. While the DEEA concentration in the formulated solution was varied in the range of 1.5-2.5 kmol/m 3 , the initial EEA concentration was 0.1 kmol/m 3 . A zwitterion mechanism for EEA and a base-catalyzed hydration mechanism for DEEA were used to describe the reaction kinetics. At 303 K, the second-order reaction rate constant for the CO 2 reaction with EEA was found to be 8041 m 3 /(kmol s). The liquid-side mass transfer coefficient was also estimated, and its value (0.004 cm/s) is in line with those typical of stirred-cell reactors.

Chemical Engineering and Processing Process Intensification, Mar 1, 2003

In the last years chemical process industries have shown permanently increasing interest in the d... more In the last years chemical process industries have shown permanently increasing interest in the development of reactive separation processes (RSP) combining reaction and separation mechanisms into a single, integrated unit. Such processes bring several important advantages among which are increase of reaction yield and selectivity, overcoming thermodynamic restrictions, e.g. azeotropes, and considerable reduction in energy, water and solvent consumption. Important examples of reactive separations are reactive distillation (RD) and reactive absorption (RA). Due to strong interactions of chemical reaction and heat and mass transfer, the process behaviour of RSP tends to be quite complex. This paper gives an overview of up-to-date reactive separation modelling and design approaches and covers both steady-state and dynamic issues. These approaches have been applied to several different RA and RD processes including the absorption of NO x , coke gas purification, methyl acetate synthesis and methyl tertiary butyl ether (MTBE) synthesis. #

Beschreibung der CO 2 -Absorption mit dem Ansatz der hydrodynamischen Analogien

Chem Ing Tech, 2009

Comments on “Simulations of chemical absorption in pilot-scale and industrial-scale packed columns by computational mass transfer” by Liu et al

Chem Eng Sci, 2008

Acceleration of CO 2 Reaction with N , N -Diethylethanolamine in Aqueous Solutions by Piperazine

Ind Eng Chem Res, 2008

N,N-Diethylethanolamine (DEEA), which can be prepared from renewable resources, represents a cand... more N,N-Diethylethanolamine (DEEA), which can be prepared from renewable resources, represents a candidate alkanolamine for CO 2 removal from gaseous streams. In this work, the reaction of CO 2 with aqueous solutions containing N,N-diethylethanolamine (DEEA) was studied ...

Kinetik der Reaktion von CO2 und OH�-Ionen in w�ssrigen L�sungen

Chem Ing Tech, 2002

Advanced Modeling of Reactive Separation Units with Structured Packings

Chemical Product and Process Modeling, 2007

... The simplified hydrodynamics in the developed hydrodynamic analogy enables the use of rigorou... more ... The simplified hydrodynamics in the developed hydrodynamic analogy enables the use of rigorous equations of heat and mass transfer to describe phenomena in RS units as well as in some other applications in which a certain flow regularity exists (see ...

A Study on the Kelvin-Helmholtz Instability Using Two Different Computational Fluid Dynamics Methods

The Journal of Computational Multiphase Flows, Feb 19, 2015

ABSTRACT

Rigorous modelling of absorption in tray and packed columns

Chemical Engineering Science, 2005

Chemical Engineering Science, 2010

Modelling of gas/vapour-liquid separation processes usually requires experimentally determined pa... more Modelling of gas/vapour-liquid separation processes usually requires experimentally determined parameters, e.g., mass transfer coefficients. This results in expensive experimental work, especially for new types of column internals. A novel modelling approach based on hydrodynamic analogies (HA) has recently been developed for distillation units equipped with structured corrugated sheet packings. The HA model takes the packing geometry directly into account whereas the experimental determination of mass transfer coefficients is not required. In this work, the HA approach is extended to cover heterogeneously catalysed reactive stripping processes. Experimental investigations are performed with a test system, esterification of hexanoic acid and 1-octanol, using different types of catalytically coated supports as column internals (one corrugated sheet packing and three film-flow monoliths with different channel geometries). Simulation results obtained with the extended HA model are in a good agreement with experimental values.

Fixed bed reactors are extensively used in chemical industry. Knowledge on local velocity distrib... more Fixed bed reactors are extensively used in chemical industry. Knowledge on local velocity distribution is particularly important for the understanding of the overall reactor performance in terms of pressure drop, residence time distribution, heat and mass transfer coefficients. In this work, such velocity fields are studied taking into account the effect of the confining walls. Irregular particle arrangements are investigated using the commercial computational fluid dynamics code CFX 11.0 by ANSYS Inc. The arrangement geometry is built based on a modified ballistic deposition method. To validate the simulation results, pressure drop correlations from literature are used. Numerical simulations are in a good agreement with correlations that take into account the confining wall effect. Furthermore, the residence time distribution is studied using two different methods.

Influence of operating conditions and column configuration on the performance of reactive distillation columns with liquid-liquid separators

The Canadian Journal of Chemical Engineering, May 31, 2003

... Markus Klöker1, Eugeny Y. Kenig1*, Markus Schmitt2, Klaus Althaus3, Hartmut Schoenmakers3, A.... more ... Markus Klöker1, Eugeny Y. Kenig1*, Markus Schmitt2, Klaus Althaus3, Hartmut Schoenmakers3, A. Peter Markusse4 and Gerard Kwant4 ... For the description of the vapour phase, the Hayden O'Connell equation of state is used to account for the non-idealities due to the ...

Http Dx Doi Org 10 1080 00986445 2011 532699, Jan 3, 2011

An information system has been designed for monitoring the quality of chemical reagents and high ... more An information system has been designed for monitoring the quality of chemical reagents and high purity substances. The information system is based on the international CALS standard (ISO-10303 STEP). It contains the following information for the main elements of analytical monitoring: a list of elements to be monitored (substance classifier), details of the analytical procedure (including the sampling and sample preparation steps), performance parameters of the instruments, metrological support, and normative documentation (governmental standards, technical specifications, and others).

Multicomponent mass transfer complicated by chemical reactions in flowing liquid film

Theoretical Foundations of Chemical Engineering

ABSTRACT

This work summarises the research and technological achievements of the EC funded research projec... more This work summarises the research and technological achievements of the EC funded research project OPT-ABSO. The major innovation of the present project is the development of a fully integrated set of modelling, simulation, and optimisation methodologies, and computer-aided tools for the design, synthesis, control, and efficient operation of sustainable industrial absorption processes. The aim of cost, waste and energy reduction and the development of realistic operating strategies for practical implementation are facilitated through an interactive software framework.

Design of Reactive Distillation

Reactive distillation (RD) is a process that combines reaction and distillation into one step. Th... more Reactive distillation (RD) is a process that combines reaction and distillation into one step. Though the advantages of RD are well documented it's commercial applications are still few. Reasons to this are the complexity of the process, lack of knowledge to design these systems, need for improved software tools to evaluate and design RD, and limited number of suitable catalyst and equipment to place catalyst inside the column. To overcome these obstacles a three-year project "Reactive distillation" initiated by SUSTECH and supported by EU in the frame of the BriteEuram III program was formed. The consortium consists of the companies Neste Oyj (Finland, Co-ordinator), BP Chemicals (Great Britain), Hoechst (Germany), BASF (Germany), Snamprogetti (Italy), and universities of Clausthal (Germany), Dortmund (Germany), Aston (Great Britain), Bath (Great Britain) and Helsinki University of Technology (Finland). This paper presents an overview of the progress of the project an...

Dynamic Simulation of Reactive Absorption Processes for the Purification of Coke Oven Gases

Investigation of multicomponent mass transfer in liquid-liquid extraction systems at microscale

International Journal of Heat and Mass Transfer, Sep 1, 2010

ABSTRACT

Chem Eng Technol, 2009

N-Ethylethanolamine (EEA) and N,N-diethylethanolamine (DEEA) represent promising candidate alkano... more N-Ethylethanolamine (EEA) and N,N-diethylethanolamine (DEEA) represent promising candidate alkanolamines for CO 2 removal from gaseous streams, as they can be prepared from renewable resources. In this work, the reaction rate constant for the reaction between CO 2 and EEA was determined from the absorption rate measurements of CO 2 in a blend comprising DEEA, EEA and H 2 O. A stirred-cell reactor with a plane, horizontal gas-liquid interface was used for the absorption studies. While the DEEA concentration in the formulated solution was varied in the range of 1.5-2.5 kmol/m 3 , the initial EEA concentration was 0.1 kmol/m 3 . A zwitterion mechanism for EEA and a base-catalyzed hydration mechanism for DEEA were used to describe the reaction kinetics. At 303 K, the second-order reaction rate constant for the CO 2 reaction with EEA was found to be 8041 m 3 /(kmol s). The liquid-side mass transfer coefficient was also estimated, and its value (0.004 cm/s) is in line with those typical of stirred-cell reactors.

Chemical Engineering and Processing Process Intensification, Mar 1, 2003

In the last years chemical process industries have shown permanently increasing interest in the d... more In the last years chemical process industries have shown permanently increasing interest in the development of reactive separation processes (RSP) combining reaction and separation mechanisms into a single, integrated unit. Such processes bring several important advantages among which are increase of reaction yield and selectivity, overcoming thermodynamic restrictions, e.g. azeotropes, and considerable reduction in energy, water and solvent consumption. Important examples of reactive separations are reactive distillation (RD) and reactive absorption (RA). Due to strong interactions of chemical reaction and heat and mass transfer, the process behaviour of RSP tends to be quite complex. This paper gives an overview of up-to-date reactive separation modelling and design approaches and covers both steady-state and dynamic issues. These approaches have been applied to several different RA and RD processes including the absorption of NO x , coke gas purification, methyl acetate synthesis and methyl tertiary butyl ether (MTBE) synthesis. #

Beschreibung der CO 2 -Absorption mit dem Ansatz der hydrodynamischen Analogien

Chem Ing Tech, 2009

Comments on “Simulations of chemical absorption in pilot-scale and industrial-scale packed columns by computational mass transfer” by Liu et al

Chem Eng Sci, 2008

Acceleration of CO 2 Reaction with N , N -Diethylethanolamine in Aqueous Solutions by Piperazine

Ind Eng Chem Res, 2008

N,N-Diethylethanolamine (DEEA), which can be prepared from renewable resources, represents a cand... more N,N-Diethylethanolamine (DEEA), which can be prepared from renewable resources, represents a candidate alkanolamine for CO 2 removal from gaseous streams. In this work, the reaction of CO 2 with aqueous solutions containing N,N-diethylethanolamine (DEEA) was studied ...

Kinetik der Reaktion von CO2 und OH�-Ionen in w�ssrigen L�sungen

Chem Ing Tech, 2002

Advanced Modeling of Reactive Separation Units with Structured Packings

Chemical Product and Process Modeling, 2007

... The simplified hydrodynamics in the developed hydrodynamic analogy enables the use of rigorou... more ... The simplified hydrodynamics in the developed hydrodynamic analogy enables the use of rigorous equations of heat and mass transfer to describe phenomena in RS units as well as in some other applications in which a certain flow regularity exists (see ...

A Study on the Kelvin-Helmholtz Instability Using Two Different Computational Fluid Dynamics Methods

The Journal of Computational Multiphase Flows, Feb 19, 2015

ABSTRACT

Rigorous modelling of absorption in tray and packed columns

Chemical Engineering Science, 2005

Chemical Engineering Science, 2010

Modelling of gas/vapour-liquid separation processes usually requires experimentally determined pa... more Modelling of gas/vapour-liquid separation processes usually requires experimentally determined parameters, e.g., mass transfer coefficients. This results in expensive experimental work, especially for new types of column internals. A novel modelling approach based on hydrodynamic analogies (HA) has recently been developed for distillation units equipped with structured corrugated sheet packings. The HA model takes the packing geometry directly into account whereas the experimental determination of mass transfer coefficients is not required. In this work, the HA approach is extended to cover heterogeneously catalysed reactive stripping processes. Experimental investigations are performed with a test system, esterification of hexanoic acid and 1-octanol, using different types of catalytically coated supports as column internals (one corrugated sheet packing and three film-flow monoliths with different channel geometries). Simulation results obtained with the extended HA model are in a good agreement with experimental values.

Fixed bed reactors are extensively used in chemical industry. Knowledge on local velocity distrib... more Fixed bed reactors are extensively used in chemical industry. Knowledge on local velocity distribution is particularly important for the understanding of the overall reactor performance in terms of pressure drop, residence time distribution, heat and mass transfer coefficients. In this work, such velocity fields are studied taking into account the effect of the confining walls. Irregular particle arrangements are investigated using the commercial computational fluid dynamics code CFX 11.0 by ANSYS Inc. The arrangement geometry is built based on a modified ballistic deposition method. To validate the simulation results, pressure drop correlations from literature are used. Numerical simulations are in a good agreement with correlations that take into account the confining wall effect. Furthermore, the residence time distribution is studied using two different methods.

Influence of operating conditions and column configuration on the performance of reactive distillation columns with liquid-liquid separators

The Canadian Journal of Chemical Engineering, May 31, 2003

... Markus Klöker1, Eugeny Y. Kenig1*, Markus Schmitt2, Klaus Althaus3, Hartmut Schoenmakers3, A.... more ... Markus Klöker1, Eugeny Y. Kenig1*, Markus Schmitt2, Klaus Althaus3, Hartmut Schoenmakers3, A. Peter Markusse4 and Gerard Kwant4 ... For the description of the vapour phase, the Hayden O'Connell equation of state is used to account for the non-idealities due to the ...

Http Dx Doi Org 10 1080 00986445 2011 532699, Jan 3, 2011

An information system has been designed for monitoring the quality of chemical reagents and high ... more An information system has been designed for monitoring the quality of chemical reagents and high purity substances. The information system is based on the international CALS standard (ISO-10303 STEP). It contains the following information for the main elements of analytical monitoring: a list of elements to be monitored (substance classifier), details of the analytical procedure (including the sampling and sample preparation steps), performance parameters of the instruments, metrological support, and normative documentation (governmental standards, technical specifications, and others).

Multicomponent mass transfer complicated by chemical reactions in flowing liquid film

Theoretical Foundations of Chemical Engineering

ABSTRACT