Methane storage in porous activated carbons
Hanze University of Applied Sciences, Centre of Applied Research and Innovation – Energy Zernikeplein 11, 9747 AS Groningen
E-mail: a.perl@pl.hanze.nl
András Perl and Wim van Gemert
Locally produced methane, - either as biomethane or power-to-gas product, has to be stored to provide a reliable gas source for the fluctuating demand of any local gas distribution network. Additionally, methane is a prominent transportation fuel but its suitability for vehicular application depends on the ability to store an adequate amount in the onboard
fuel tank. in porous materials could enable a simple, safe and cost-effective
method for storing methane at ambient temperature and at reasonably low pressure [1]. Adsorption [1] Menon, V.; Komarneni, S. , 5, 4358. [2] Pfeifer, P. et al. , 17, 041108. [3] Loh, W. S. et al. , 55, 28402847. [4] Bagheri, N.; Abedi, , 89, 20382043. J. Porous Materials Chaos
J. Chem. Eng. Data J. Chemi. Eng. Res. Des.
1998 2007 2010 2011
Acknowledgments
References
In a solid adsorbent, nanometer wide pores can trap methane by
as high density fluid at low pressure and room temperature [2].
van der Waals forces
This research has been financed by a grant of the Energy Delta Gas Research (EDGaR) program. EDGaR is co-financed by the Northern Netherlands Provinces, the European Fund for Regional Development, the Ministry of Economic Affairs, Agriculture and Innovation and the Province of Groningen.
Adsorption
Adsorbent Gas molecules 0 20 40 60 80 100 120 140 40 50 60 70 80 90 100 20 x 400 mm 40 x 400 mm 60 x 400 mm 80 x 400 mm 100 x 400 mm 200 x 400 mm 400 x 400 mm V ol um e to vo lu m e ra ti o Time (min) 0,00 0,01 0,02 0,03 0,04 300 310 320 330 340 350 360 370 T em pe ra tu re (K ) Length (m) 1 min 10 min 20 min 30 min 40 x 400 mmModeling results
In this project we study and test the main thermodynamic and kinetic characteristics of methane adsorption and desorption on activated carbon. Both calculations and measurements are performed to enhance our knowledge about the general performance and the cyclic behavior of the adsorption and desorption processes.
Outlook
The plot of the (a) volume to volume ratio, (b) temperature distribution, (c) adsorption inflow rate and (d) desorption outflow rate as a function of time.
0 300 600 900 1200 1500 1800 0,0 5,0x10-6 1,0x10-5 1,5x10-5 2,0x10-5 2,5x10-5 3,0x10-5 M et ha ne in fl ow (k g/ s) Time (s) 400 x 1000 mm 0 100 200 300 400 500 600 0,0 5,0x10-5 1,0x10-4 1,5x10-4 2,0x10-4 400 x 1000 mm M et ha ne ou tf lo w (k g/ s) Time (s) a b c d
The experimental setup
Adsorption vessel Reference
vessel
Activated carbons with large surface area and high porosity are particularly suitable for methane storage applications at moderate pressures [3,4].
CH4
