### Abstract

This study proposes a strategy for optimal design of hollow fiber membrane networks for post combustion carbon capture from power plant multicomponent flue gas. A mathematical model describing multicomponent gas permeation through a separation membrane was customized into the flowsheet modeling package ASPEN PLUS. An N-stage membrane network superstructure was defined considering all possible flowsheeting configurations. An optimization formulation was then developed and solved using an objective function that minimizes the costs associated with operating and capital expenses. For a case study of flue gas feed flow rate of 298 m^{3}/s with 13% CO_{2} and under defined economic parameters, the optimization resulted in the synthesis of a membrane network structure consisting of two stages in series. This optimal design was found while also considering feed and permeate pressures as well as recycle ratios between stages. The cost of carbon capture for this optimal membrane network is estimated to be $28 per tonne of CO_{2} captured, considering a membrane permeance of 1000 GPU and membrane selectivity of 50. Following this approach, a reduction in capture cost to less than $20 per tonne CO_{2} captured is possible if membranes with permeance of 2000 GPU and selectivity higher than 70 materialize.

Original language | English |
---|---|

Pages (from-to) | 976-985 |

Number of pages | 10 |

Journal | Computer Aided Chemical Engineering |

Volume | 37 |

DOIs | |

Publication status | Published - 2013 |

Externally published | Yes |

### Keywords

- Carbon capture
- Hollow fiber
- Membrane network superstructure
- Model
- Multicomponent gas
- Optimization

### Cite this

*Computer Aided Chemical Engineering*,

*37*, 976-985. https://doi.org/10.1016/j.egypro.2013.05.193

}

*Computer Aided Chemical Engineering*, vol. 37, pp. 976-985. https://doi.org/10.1016/j.egypro.2013.05.193

**Membrane systems engineering for post-combustion carbon capture.** / Alshehri, Ali; Khalilpour, Rajab; Abbas, Ali; Lai, Zhiping.

Research output: Contribution to journal › Article › Research › peer-review

TY - JOUR

T1 - Membrane systems engineering for post-combustion carbon capture

AU - Alshehri, Ali

AU - Khalilpour, Rajab

AU - Abbas, Ali

AU - Lai, Zhiping

PY - 2013

Y1 - 2013

N2 - This study proposes a strategy for optimal design of hollow fiber membrane networks for post combustion carbon capture from power plant multicomponent flue gas. A mathematical model describing multicomponent gas permeation through a separation membrane was customized into the flowsheet modeling package ASPEN PLUS. An N-stage membrane network superstructure was defined considering all possible flowsheeting configurations. An optimization formulation was then developed and solved using an objective function that minimizes the costs associated with operating and capital expenses. For a case study of flue gas feed flow rate of 298 m3/s with 13% CO2 and under defined economic parameters, the optimization resulted in the synthesis of a membrane network structure consisting of two stages in series. This optimal design was found while also considering feed and permeate pressures as well as recycle ratios between stages. The cost of carbon capture for this optimal membrane network is estimated to be $28 per tonne of CO2 captured, considering a membrane permeance of 1000 GPU and membrane selectivity of 50. Following this approach, a reduction in capture cost to less than $20 per tonne CO2 captured is possible if membranes with permeance of 2000 GPU and selectivity higher than 70 materialize.

AB - This study proposes a strategy for optimal design of hollow fiber membrane networks for post combustion carbon capture from power plant multicomponent flue gas. A mathematical model describing multicomponent gas permeation through a separation membrane was customized into the flowsheet modeling package ASPEN PLUS. An N-stage membrane network superstructure was defined considering all possible flowsheeting configurations. An optimization formulation was then developed and solved using an objective function that minimizes the costs associated with operating and capital expenses. For a case study of flue gas feed flow rate of 298 m3/s with 13% CO2 and under defined economic parameters, the optimization resulted in the synthesis of a membrane network structure consisting of two stages in series. This optimal design was found while also considering feed and permeate pressures as well as recycle ratios between stages. The cost of carbon capture for this optimal membrane network is estimated to be $28 per tonne of CO2 captured, considering a membrane permeance of 1000 GPU and membrane selectivity of 50. Following this approach, a reduction in capture cost to less than $20 per tonne CO2 captured is possible if membranes with permeance of 2000 GPU and selectivity higher than 70 materialize.

KW - Carbon capture

KW - Hollow fiber

KW - Membrane network superstructure

KW - Model

KW - Multicomponent gas

KW - Optimization

UR - http://www.scopus.com/inward/record.url?scp=84891488267&partnerID=8YFLogxK

U2 - 10.1016/j.egypro.2013.05.193

DO - 10.1016/j.egypro.2013.05.193

M3 - Article

VL - 37

SP - 976

EP - 985

JO - Computer Aided Chemical Engineering

JF - Computer Aided Chemical Engineering

SN - 1570-7946

ER -