The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Sandra E Kentish - One of the best experts on this subject based on the ideXlab platform.
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membrane gas separation physical solvent absorption combined plant simulations for pre combustion capture
Energy Procedia, 2013Co-Authors: Colin A. Scholes, Clare Anderson, Geoff W. Stevens, Sandra E KentishAbstract:Abstract Removal of carbon dioxide (CO 2 ) from syngas generated by coal gasification is often currently achieved by absorption into physical solvents such as in the Rectisol Process. The vented gas from this process often does not have the CO 2 purity required for carbon capture and storage purposes, because the focus is on recovery and recycling valuable syngas components, such as H 2 . It is shown here that this can be rectified through the use of a CO 2 -selective membrane. For an existing Rectisol process, a CO 2 -selective membrane unit on the vented waste gas can achieve the necessary CO 2 purity with a low CO 2 /H 2 selectivity polymer. This provides a simple and effective method to retrofit such a process to provide a CO 2 stream suitable for storage. Alternatively, the standard multiple flash stages can be replaced by a single flash stage with a gas-separation membrane on the gas recycle. This Rectisol – membrane hybrid design can achieve high purity CO 2 product streams with reasonable membrane CO 2 /H 2 selectivities, dependent on the solvent flash pressure. However, maximizing CO 2 flux across the membrane means a high flashing pressure and therefore only partial solvent regeneration before recycle to the absorber. This results in a significant increase in solvent flowrate and hence absorber size to ensure high CO 2 recovery.
Stefano Consonni - One of the best experts on this subject based on the ideXlab platform.
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review modeling heat integration and improved schemes of Rectisol based processes for co2 capture
Applied Thermal Engineering, 2014Co-Authors: Manuele Gatti, Emanuele Martelli, Francois Marechal, Stefano ConsonniAbstract:The paper evaluates the thermodynamic performances and the energy integration of alternative schemes of a methanol absorption based acid gas removal process designed for CO2 Capture and Storage. More precisely, this work focuses the attention on the Rectisol® process specifically designed for the selective removal of H2S and CO2 from syngas produced by coal gasification. The study addresses the following issues: (i) perform a review of the Rectisol® schemes proposed by engineers and researchers with the purpose of determining the best one for CO2 capture and storage; (ii) calibrate the PC-SAFT equation of state for CH3OH-CO2-H2S-H2-CO mixtures at conditions relevant to the Rectisol® process; (iii) evaluate the thermodynamic performances and optimize the energy integration of a "Reference" scheme derived from those available in the literature; (iv) identify and assess alternative Rectisol® schemes with optimized performance for CO2 Capture and Storage and Heat Integration with utilities. On the basis of the analysis of the Composite Curves of the integrated process, we propose some possible improvements at the level of the process configuration, like the introduction of mechanical vapor recompression and the development of a two stage regeneration arrangement. © 2014 Elsevier Ltd. All rights reserved.
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Multi-objective optimization of a Rectisol® process
Computer Aided Chemical Engineering, 2014Co-Authors: Manuele Gatti, Emanuele Martelli, Francois Marechal, Stefano ConsonniAbstract:This work focuses on the design, simulation and optimization of a Rectisol®-based process tailored for the selective removal of H2S and CO2 from gasification derived synthesis gas. Such task is quite challenging due to the need of addressing simultaneously the process design, energy integration and utility design. The paper, starting from a Rectisol® configuration recently proposed by the authors, describes the models and the solution strategy used to carry out the multi-objective optimization with respect to exergy consumption, CO2 capture level and capital cost. © 2014 Elsevier B.V.
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multi objective optimization of a Rectisol process
Computer-aided chemical engineering, 2014Co-Authors: Manuele Gatti, Emanuele Martelli, Francois Marechal, Stefano ConsonniAbstract:This work focuses on the design, simulation and optimization of a Rectisol®-based process tailored for the selective removal of H2S and CO2 from gasification derived synthesis gas. Such task is quite challenging due to the need of addressing simultaneously the process design, energy integration and utility design. The paper, starting from a Rectisol® configuration recently proposed by the authors, describes the models and the solution strategy used to carry out the multi-objective optimization with respect to exergy consumption, CO2 capture level and capital cost.
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thermodynamic analysis energy integration and flowsheet improvement of a methanol absorption acid gas removal process
Chemical engineering transactions, 2013Co-Authors: Manuele Gatti, Emanuele Martelli, Francois Marechal, Stefano ConsonniAbstract:This paper analyses the thermodynamic performance and proposes different energy integration schemes for a methanol absorption based acid gas removal process, namely the Rectisol® process specifically designed for the selective removal of H2S and CO2 from coal derived syngas. The study consists of three major tasks: 1. Calibrating the PC-SAFT equation of state for MEOH-CO2-H2S-H2-CO mixtures at conditions relevant for the Rectisol® process. 2. Evaluating the thermodynamic performances and optimising the energy integration of the "Reference" scheme by means of "heat-cascade" based optimisation methodology. 3. Identifying attractive process modifications on the basis of Process Integration principles.
Colin A. Scholes - One of the best experts on this subject based on the ideXlab platform.
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membrane gas separation physical solvent absorption combined plant simulations for pre combustion capture
Energy Procedia, 2013Co-Authors: Colin A. Scholes, Clare Anderson, Geoff W. Stevens, Sandra E KentishAbstract:Abstract Removal of carbon dioxide (CO 2 ) from syngas generated by coal gasification is often currently achieved by absorption into physical solvents such as in the Rectisol Process. The vented gas from this process often does not have the CO 2 purity required for carbon capture and storage purposes, because the focus is on recovery and recycling valuable syngas components, such as H 2 . It is shown here that this can be rectified through the use of a CO 2 -selective membrane. For an existing Rectisol process, a CO 2 -selective membrane unit on the vented waste gas can achieve the necessary CO 2 purity with a low CO 2 /H 2 selectivity polymer. This provides a simple and effective method to retrofit such a process to provide a CO 2 stream suitable for storage. Alternatively, the standard multiple flash stages can be replaced by a single flash stage with a gas-separation membrane on the gas recycle. This Rectisol – membrane hybrid design can achieve high purity CO 2 product streams with reasonable membrane CO 2 /H 2 selectivities, dependent on the solvent flash pressure. However, maximizing CO 2 flux across the membrane means a high flashing pressure and therefore only partial solvent regeneration before recycle to the absorber. This results in a significant increase in solvent flowrate and hence absorber size to ensure high CO 2 recovery.
Atilano Antonio Vegini - One of the best experts on this subject based on the ideXlab platform.
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Estudo parametrico da purificação de monoxido de carbono : processo Rectisol
2017Co-Authors: Atilano Antonio VeginiAbstract:Resumo: Este trabalho consiste na simulação de uma Planta de Monoxido de Carbon (CO), o qual é produzido a partir do coque de petroleo e oxigenio, e é purificado através do uso de metanol resfriado sob alta pressão (Processo Rectisol). A simulação da Planta de CO é realizada com ajuda de um simulador de processos. A escolha do pacote termodinâmico, a predição da eficiência das colunas, e a correção do balanço energético da coluna de absorção, foram algumas das informações necessárias para a simulação. A validade do simulador é analisada através de dados experimentais obtidos de uma Planta Piloto, e dados coletados na própria Planta de CO. Através da simulação é possível realizar o estudo paramétrico, o qual possibilita verificar como as variáveis de processo influenciam a purificação do CO. Como resultado, apresentamos uma configuração de operação para o processo de purificação, que reduz o custo operacional da Planta de CO e atende as exigências de qualidade do produto finalAbstract: This work consists in a simulation of a Carbon Monoxide (CO) Plant, which is produced by petrol coke and oxygen, and it is cleaned throgh the metanol at low temperatura under high pressure (Rectisol Process). The simulation of CO Plant is made with the support of a process simulator. The selection of property method, the prediction about efficiency column, and correction in the energetic balance absortion column, were some of the input information necessary to the simulation. The result of simulation is analysed with expérimentais data obtained from a Pilot Plant, and also from the industrial CO Plant. From the simulation it is possible to realize the parametric study, which becomes possible to verify how the process variables affect the CO purification. As the result of this work, we show a new operation conditions to the purification process, which reduce the production cost of the CO Plant, and not affecting the quality of the final produc
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estudo parametrico da purificacao de monoxido de carbono processo Rectisol
1992Co-Authors: Atilano Antonio Vegini, Milton MoriAbstract:Este trabalho consiste na simulacao de uma Planta de Monoxido de Carbon (CO), o qual e produzido a partir do coque de petroleo e oxigenio, e e purificado atraves do uso de metanol resfriado sob alta pressao (Processo Rectisol). A simulacao da Planta de CO e realizada com ajuda de um simulador de processos. A escolha do pacote termodinâmico, a predicao da eficiencia das colunas, e a correcao do balanco energetico da coluna de absorcao, foram algumas das informacoes necessarias para a simulacao. A validade do simulador e analisada atraves de dados experimentais obtidos de uma Planta Piloto, e dados coletados na propria Planta de CO. Atraves da simulacao e possivel realizar o estudo parametrico, o qual possibilita verificar como as variaveis de processo influenciam a purificacao do CO. Como resultado, apresentamos uma configuracao de operacao para o processo de purificacao, que reduz o custo operacional da Planta de CO e atende as exigencias de qualidade do produto final Abstract
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Estudo parametrico da purificação de monoxido de carbono : processo Rectisol
Universidade Estadual de Campinas . Faculdade de Engenharia Química, 1992Co-Authors: Atilano Antonio VeginiAbstract:Este trabalho consiste na simulação de uma Planta de Monoxido de Carbon (CO), o qual é produzido a partir do coque de petroleo e oxigenio, e é purificado através do uso de metanol resfriado sob alta pressão (Processo Rectisol). A simulação da Planta de CO é realizada com ajuda de um simulador de processos. A escolha do pacote termodinâmico, a predição da eficiência das colunas, e a correção do balanço energético da coluna de absorção, foram algumas das informações necessárias para a simulação. A validade do simulador é analisada através de dados experimentais obtidos de uma Planta Piloto, e dados coletados na própria Planta de CO. Através da simulação é possível realizar o estudo paramétrico, o qual possibilita verificar como as variáveis de processo influenciam a purificação do CO. Como resultado, apresentamos uma configuração de operação para o processo de purificação, que reduz o custo operacional da Planta de CO e atende as exigências de qualidade do produto finalThis work consists in a simulation of a Carbon Monoxide (CO) Plant, which is produced by petrol coke and oxygen, and it is cleaned throgh the metanol at low temperatura under high pressure (Rectisol Process). The simulation of CO Plant is made with the support of a process simulator. The selection of property method, the prediction about efficiency column, and correction in the energetic balance absortion column, were some of the input information necessary to the simulation. The result of simulation is analysed with expérimentais data obtained from a Pilot Plant, and also from the industrial CO Plant. From the simulation it is possible to realize the parametric study, which becomes possible to verify how the process variables affect the CO purification. As the result of this work, we show a new operation conditions to the purification process, which reduce the production cost of the CO Plant, and not affecting the quality of the final produc
Francois Marechal - One of the best experts on this subject based on the ideXlab platform.
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review modeling heat integration and improved schemes of Rectisol based processes for co2 capture
Applied Thermal Engineering, 2014Co-Authors: Manuele Gatti, Emanuele Martelli, Francois Marechal, Stefano ConsonniAbstract:The paper evaluates the thermodynamic performances and the energy integration of alternative schemes of a methanol absorption based acid gas removal process designed for CO2 Capture and Storage. More precisely, this work focuses the attention on the Rectisol® process specifically designed for the selective removal of H2S and CO2 from syngas produced by coal gasification. The study addresses the following issues: (i) perform a review of the Rectisol® schemes proposed by engineers and researchers with the purpose of determining the best one for CO2 capture and storage; (ii) calibrate the PC-SAFT equation of state for CH3OH-CO2-H2S-H2-CO mixtures at conditions relevant to the Rectisol® process; (iii) evaluate the thermodynamic performances and optimize the energy integration of a "Reference" scheme derived from those available in the literature; (iv) identify and assess alternative Rectisol® schemes with optimized performance for CO2 Capture and Storage and Heat Integration with utilities. On the basis of the analysis of the Composite Curves of the integrated process, we propose some possible improvements at the level of the process configuration, like the introduction of mechanical vapor recompression and the development of a two stage regeneration arrangement. © 2014 Elsevier Ltd. All rights reserved.
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Multi-objective optimization of a Rectisol® process
Computer Aided Chemical Engineering, 2014Co-Authors: Manuele Gatti, Emanuele Martelli, Francois Marechal, Stefano ConsonniAbstract:This work focuses on the design, simulation and optimization of a Rectisol®-based process tailored for the selective removal of H2S and CO2 from gasification derived synthesis gas. Such task is quite challenging due to the need of addressing simultaneously the process design, energy integration and utility design. The paper, starting from a Rectisol® configuration recently proposed by the authors, describes the models and the solution strategy used to carry out the multi-objective optimization with respect to exergy consumption, CO2 capture level and capital cost. © 2014 Elsevier B.V.
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multi objective optimization of a Rectisol process
Computer-aided chemical engineering, 2014Co-Authors: Manuele Gatti, Emanuele Martelli, Francois Marechal, Stefano ConsonniAbstract:This work focuses on the design, simulation and optimization of a Rectisol®-based process tailored for the selective removal of H2S and CO2 from gasification derived synthesis gas. Such task is quite challenging due to the need of addressing simultaneously the process design, energy integration and utility design. The paper, starting from a Rectisol® configuration recently proposed by the authors, describes the models and the solution strategy used to carry out the multi-objective optimization with respect to exergy consumption, CO2 capture level and capital cost.
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thermodynamic analysis energy integration and flowsheet improvement of a methanol absorption acid gas removal process
Chemical engineering transactions, 2013Co-Authors: Manuele Gatti, Emanuele Martelli, Francois Marechal, Stefano ConsonniAbstract:This paper analyses the thermodynamic performance and proposes different energy integration schemes for a methanol absorption based acid gas removal process, namely the Rectisol® process specifically designed for the selective removal of H2S and CO2 from coal derived syngas. The study consists of three major tasks: 1. Calibrating the PC-SAFT equation of state for MEOH-CO2-H2S-H2-CO mixtures at conditions relevant for the Rectisol® process. 2. Evaluating the thermodynamic performances and optimising the energy integration of the "Reference" scheme by means of "heat-cascade" based optimisation methodology. 3. Identifying attractive process modifications on the basis of Process Integration principles.
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conceptual design of a thermo electrical energy storage system based on heat integration of thermodynamic cycles part a methodology and base case
Energy, 2012Co-Authors: Matteo Morandin, Francois Marechal, Mehmet Mercangoz, Florian BuchterAbstract:This paper analyses the thermodynamic performance and proposes different energy integration schemes for a methanol absorption based acid gas removal process, namely the Rectisol® process specifically designed for the selective removal of H2S and CO2 from coal derived syngas. The study consists of three major tasks: 1. Calibrating the PC-SAFT equation of state for MEOH-CO2-H2S-H2-CO mixtures at conditions relevant for the Rectisol® process. 2. Evaluating the thermodynamic performances and optimising the energy integration of the "Reference" scheme by means of "heat-cascade" based optimisation methodology. 3. Identifying attractive process modifications on the basis of Process Integration principles. © 2013, AIDIC Servizi S.r.l.