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Research Papers: Energy Systems Analysis

Simulation of Adsorptive Storage of CO2 in Fixed Bed of MOF-5

[+] Author and Article Information
Rached Ben-Mansour

Mechanical Engineering Department,
KFUPM,
Dhahran 34464, Saudi Arabia
e-mail: rmansour@kfupm.edu.sa

Bamidele Olufemi Eyitope

Mechanical Engineering Department,
KFUPM,
Dhahran 34464, Saudi Arabia
e-mail: eyitope.bamidele@gmail.com

Mohammed A. Antar

Mechanical Engineering Department,
KFUPM,
Dhahran 34464, Saudi Arabia
e-mail: antar@kfupm.edu.sa

Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received February 14, 2015; final manuscript received July 6, 2015; published online September 23, 2015. Editor: Hameed Metghalchi.

J. Energy Resour. Technol 138(1), 012001 (Sep 23, 2015) (12 pages) Paper No: JERT-15-1062; doi: 10.1115/1.4031451 History: Received February 14, 2015; Revised July 06, 2015

Adsorptive storage of CO2 in a fixed bed is studied numerically. The simulation of an adsorption process of CO2 on a fixed bed has been carried out to evaluate the capacity of metal-organic framework novel materials (MOF-5 also known as IRMOF1) for CO2 storage with varying feed gas pressure up to 50 bar and ambient temperature. We also have presented similar studies for activated carbon bed. The adsorption model has been validated by testing it against experimental data for adsorption storage characteristics of hydrogen on activated carbon. The mathematical model used to carry out the numerical simulations is a one-dimensional transient model accounting for mass, momentum, species, and energy transport including mass transfer and empirically based adsorption models. The developed model has been coded in matlab to carry out the presented simulations.

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Figures

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Fig. 1

Physical structure of metal-organic frameworks (MOFs)

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Fig. 2

Adsorption system. L, length of adsorption column (0.171 m) and M, size of each division (0.00171 m), where: L = Length of adsorption column (0.171 m), M = Size of each division (0.00171 m)

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Fig. 3

Feed pressure curve fit for adsorption of H2 in activated carbon

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Fig. 4

Adsorbed amount of H2 in activated carbon at bed midspan

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Fig. 5

Adsorbed amount of CO2 on activated carbon at bed midspan after 83 min

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Fig. 6

Profile of amount of CO2 stored on MOF-5 for various feed pressures

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Fig. 7

Profile of amount of CO2 stored on MOF-5 for 50 min for varying feed pressures

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Fig. 8

Temperature profile of bulk gas for storage of CO2 on MOF-5 for various feed pressures

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Fig. 9

Temperature profile of adsorption column wall during adsorption of CO2 on MOF-5 for various feed pressures

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Fig. 10

Profile of equilibrium adsorption constant for CO2 adsorption on MOF-5 for various feed pressures

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Fig. 11

Effect of bed length on total amount of CO2 stored on MOF-5 and activated carbon for 250 min

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Fig. 12

Effect of bed diameter on total amount of CO2 stored on MOF-5 and activated carbon for 600 min

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Fig. 13

Profile of amount of CO2 stored on activated carbon for 50 min for varying feed pressures

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Fig. 14

Effect of feed pressure on stored amount of CO2 on activated carbon bed for 50 min feeding duration

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