Separation of mineral oil droplets using polypropylene fibre bed coalescence

This paper investigates the separation possibilities of model emulsion oil-in-water using polypropylene fibre bed coalescence. Experiments were carried out over a wide range of physico-chemical characteristics of mineral oils, bed permeability and operating fluid velocities. The aim of this study was to analyse the influence of the dispersed oil phase nature and of the bed geometry on the separation efficiency. From the obtained results, it can be concluded that polypropylene fibres in the broadest studied range of bed permeabilities and fluid velocities, effectively separate oil that is highly polar. On the contrary, for the other two investigated oils at low values of bed permeability a region was detected in which the coalescer is incapable to operate. It has to be emphasized that the polypropylene fibres efficiently separate all three investigated oils at the highest studied bed permeability. [Projekat Ministarstva nauke Republike Srbije, br. 172022]

[1]  S. U. Patel,et al.  Coalescence filtration performance of blended microglass and electrospun polypropylene fiber filter media , 2014 .

[2]  T. Stegmaier,et al.  Effect of Fibrous Coalescer Geometry and Operating Conditions on Emulsion Separation , 2013 .

[3]  T. Stegmaier,et al.  Role of surface wettability and roughness in emulsion separation , 2013 .

[4]  Dragan D. Govedarica,et al.  A novel approach for the estimation of the efficiency of steady-state fiber bed coalescence , 2013 .

[5]  Goutham Viswanadam.  Water–diesel secondary dispersion separation using superhydrophobic tubes of nanofibers , 2013 .

[6]  Dragan D. Govedarica,et al.  Evaluation of the Separation of Liquid–Liquid Dispersions by Flow through Fiber Beds , 2012 .

[7]  G. Chase,et al.  The effect of surface energy of woven drainage channels in coalescing filters , 2012 .

[8]  G. Chase,et al.  Layered hydrophilic/hydrophobic fiber media for water-in-oil coalescence , 2012 .

[9]  T. Stegmaier,et al.  Effect of fibrous filter properties on the oil-in-water-emulsion separation and filtration performance. , 2011, Journal of hazardous materials.

[10]  Dragan D. Govedarica,et al.  Separation of oil-in-water emulsion using two coalescers of different geometry. , 2010, Journal of hazardous materials.

[11]  S. Sokolović,et al.  Oily water treatment using a new steady-state fiber-bed coalescer. , 2009, Journal of hazardous materials.

[12]  R. M. S. Sokolović,et al.  Effect of bed length on steady-state coalescence of oil-in-water emulsion , 2007 .

[13]  Q. Wei,et al.  Dynamic studies of polypropylene nonwovens in environmental scanning electron microscope , 2007 .

[14]  R. M. S. Sokolović,et al.  Effect of Fluid Flow Orientation on the Coalescence of Oil Droplets in Steady-State Bed Coalescers. , 2006 .

[15]  Yongan Gu,et al.  Coalescence of oil-in-water emulsions in fibrous and granular beds , 2005 .

[16]  R. M. S. Sokolović,et al.  Effect of Fibrous Bed Permeability on Steady-State Coalescence , 2003 .

[17]  J. Shaw,et al.  Secondary drop production in packed-bed coalescers , 1996 .

[18]  E. Clayfield,et al.  The coalescence of secondary dispersions: I. The effect of wettability and surface energy , 1985 .

[19]  D. G. Austin.  Coalescence of secondary dispersions , 1979 .

[20]  R. S. Schechter,et al.  Device for Evaluating Coalescence of Oil Emulsion , 1977 .

[21]  S. Goren,et al.  Progress in Induced Coalescence and a New Theoretical Framework for Coalescence by Porous Media , 1970 .

[22]  R. C. Kintner,et al.  Coalescence in fibrous beds , 1966 .