Reactive absorption in packed bed columns in the presence of magnetic nanoparticles and magnetic field: Modeling and simulation

Mohammad Rahimi; Asghar Molaei Dehkordi

Journal of Industrial and Engineering Chemistry, Vol.45, 131-144, January, 2017

DOI10.1016/j.jiec.2016.09.016 Export Citation

Reactive absorption in packed bed columns in the presence of magnetic nanoparticles and magnetic field: Modeling and simulation

Mohammad Rahimi, and Asghar Molaei Dehkordi^†

Department of Chemical and Petroleum Engineering, Sharif University of Technology, P.O. Box 11155-9465, Tehran, Iran

E-mail:

In this article, the influences of ferrofluid and magnetic field on the reactive absorption in packed-bed contactors have been investigated. Because of importance of carbon dioxide emission as a global concern, absorption of carbon dioxide was chosen to investigate these effects. In this regard, multitube approach was applied to model the contactor. The simulation results were validated against experimental data reported in the literature in the absence of nanoparticles and magnetic field and good agreement was obtained. Moreover, influences of various operating conditions on the contactor performance were investigated. It was found that for 3.4 vol.% of magnetic nanoparticles (MNPs), the local mass-transfer coefficient for the gas phase at the top of the absorption column increases about six times relative to that obtained in the absence of magnetic field and MNP and an increase of 117% in the average Sherwood number value for the gas phase was obtained. Furthermore, it was found that using MNPs and applying a magneticfield simultaneously enhance the performance of industrial chemical absorption systems.

Keywords:Packed bed column;Ferrofluids;Magnetic nanoparticles;Reactive absorption;Magnetic field;Mass-transfer coefficient

[References]

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[2] Pandya J, Chem. Eng. Commun., 19, 343 (1983)

[3] Asendrych D, Niegodajew P, Drobniak S, Chem Process Eng, 34, 269 (2013)

[4] Khan FM, Krishnamoorthi V, Mahmud T, Chem. Eng. Res. Des., 89(9A), 1600 (2011)

[5] Akanksha, Pant KK, Srivastava VK, Chem. Eng. J., 133(1-3), 229 (2007)

[6] Amrei SMHH, Memardoost S, Asadi S, Dehkordi AM, Can. J. Chem. Eng., 92(10), 1749 (2014)

[7] Suresh A, Bhalerao S, Indian J. Pure Appl. Phys., 40, 172 (2002)

[8] Komati S, Suresh AK, Ind. Eng. Chem. Res., 49, 390 (2009)

[9] Olle B, Bucak S, Holmes TC, Bromberg L, Hatton TA, Wang DIC, Ind. Eng. Chem. Res., 45(12), 4355 (2006)

[10] Niu XF, Du K, Xiao F, Int. J. Refrig. -Rev. Int. Froid, 33, 686 (2010)

[11] Samadi Z, Haghshenasfard M, Moheb A, Chem. Eng. Technol., 37(3), 462 (2014)

[12] Salimi J, Haghshenasfard M, Etemad SG, Heat Mass Transf., 51, 621 (2015)

[13] Makaremi S, Shahraki BH, Shariati A, Investigating the effect of interfacial drag on chemical gas absorption in a packed column by modelling and numerical simulation, IEEE (2010) 387

[14] Khushrushahi SR, Ferrofluid Spin-up Flows in Uniform and Non-uniform Rotating Magnetic Fields, Ph.D. Thesis, Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, 2010.

[15] Astarita G, Mass Transfer with Chemical Reaction, Elsevier, Amsterdam, 1967.

[16] Hikita H, Asai S, Ishikawa H, Honda M, Chem. Eng. J., 13, 7 (1977)

[17] Shliomis MI, Soviet Phys. JETPS, 34, 4 (1972)

[18] inlayson B, Modeling a ferrofluid in a rotating magnetic field, COMSOL User’s Conference, Boston, 2007.

[19] Rosensweig RE, Ferrohydrodynamics, Dover Publications, 1997.

[20] Rosensweig R, Basic Equations for Magnetic Fluids with Internal Rotations, Springer, Berlin Heidelberg, 2002, pp. 61.

[21] Shliomis M, Soviet J. Exp. Theor. Phys., 34, 1291 (1972)

[22] Schumacher KR, Sellien I, Knoke GS, Cader T, Finlayson BA, Phys. Rev. E, 67, 026308 (2003)

[23] Blums E, Mikhaılov IUA, Ozols R, Heat and Mass Transfer in MHD Flows, World Scientific, Singapore, 1987.

[24] Postelnicu A, Int. J. Heat Mass Transf., 47(6-7), 1467 (2004)

[25] Elbashbeshy E, Int. J. Eng. Sci., 35, 515 (1997)

[26] Hoffmann KA, Computational Fluid Dynamics for Engineers, fourth ed., Engineering Education System, Austin, TX, 1989.

[27] Versteeg HK, Malalasekera W, An Introduction to Computational Fluid Dynamics: the Finite Volume Method, second ed., Pearson Education, 2007.

[28] Rashid H, Abd H, Sharifah B, Iskandar M, Aust. J. Basic Appl. Sci., 8, 258 (2014)