The Experts below are selected from a list of 132 Experts worldwide ranked by ideXlab platform

Sandra E Kentish - One of the best experts on this subject based on the ideXlab platform.

  • membrane gas separation physical solvent absorption combined plant simulations for pre combustion capture
    Energy Procedia, 2013
    Co-Authors: Colin A. Scholes, Clare Anderson, Geoff W. Stevens, Sandra E Kentish
    Abstract:

    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.

Colin A. Scholes - One of the best experts on this subject based on the ideXlab platform.

  • membrane gas separation physical solvent absorption combined plant simulations for pre combustion capture
    Energy Procedia, 2013
    Co-Authors: Colin A. Scholes, Clare Anderson, Geoff W. Stevens, Sandra E Kentish
    Abstract:

    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.

Clare Anderson - One of the best experts on this subject based on the ideXlab platform.

  • membrane gas separation physical solvent absorption combined plant simulations for pre combustion capture
    Energy Procedia, 2013
    Co-Authors: Colin A. Scholes, Clare Anderson, Geoff W. Stevens, Sandra E Kentish
    Abstract:

    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.

Geoff W. Stevens - One of the best experts on this subject based on the ideXlab platform.

  • membrane gas separation physical solvent absorption combined plant simulations for pre combustion capture
    Energy Procedia, 2013
    Co-Authors: Colin A. Scholes, Clare Anderson, Geoff W. Stevens, Sandra E Kentish
    Abstract:

    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.

  • Estudo parametrico da purificação de monoxido de carbono : Processo Rectisol
    2017
    Co-Authors: Atilano Antonio Vegini
    Abstract:

    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

  • Estudo parametrico da purificação de monoxido de carbono : Processo Rectisol
    Universidade Estadual de Campinas . Faculdade de Engenharia Química, 1992
    Co-Authors: Atilano Antonio Vegini
    Abstract:

    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