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EFFECT OF KNELSON CONCENTRATOR OPERATION PARAMETERS ON COAL DESULFURIZATION AND DEASHING

Year 2018, Issue: 041, 35 - 47, 16.12.2018

Abstract

The Knelson Concentrator, developed especially
for finer-sized gold recovery, has recently been used to enrich many ores. The
Knelson concentrator is a device that separates by utilizing centrifugal force
and density. In this study, a Knelson Concentrator was used to remove sulfur
and ash forming mineral matter in coal, which is very fine in size and causes
environmental problems. The effects of Knelson Concentrator operating
parameters (centrifugal force, water flow and grain size) on inorganic sulfur
and ash removal were investigated. Both inorganic sulfur and ash were
determined to be effective in removing. % 7.06 total sulfur containing coal
(3.55% inorganic sulfur), sulphurane 15.02% and ash 19.45% were removed 58.16%
with combustible yields (90 G centrifugal force, 1.6 lt/min water flow and
0.150 mm particle size).

References

  • [1] Key world energy statistics, (2017), International energy agency (IEA)
  • [2] Jorjani, E,. Rezai, B., Vossoughi, M., Osanloo, M., Abdollahi, M., (2004), Oxidation pretreatment for enhancing desulfurization of coal with sodium butoxide, Minerals Engineering, 17, 545-552.
  • [3] Jorjani, E., Rezai, B., Vossouhgi, M., Osanloo, M., (2004), Desulfurization of Tabas coal with microwave irridation/peroxyacetic acid washing at 25, 55 and 85 oC, Fuel, 83, 943-949.
  • [4] Jorjani, E., Yperman, J., Carleer, R., Rezai, B., (2006), Reductive pyrolysis study of sulfur compounds in different Tabas coal samples (Iran), Fuel 85, 114–120.
  • [5] Demir, U., (2017), Characterization and desulfurization possibilities of high sulfur gediz-turkey coal, Journal of Environmental Science and Engineering A, 6(1), 31-38.
  • [6] Kawatra, S. K., and Eisele, T. C., (2001), Coal desulfurization, high-efficiency preparation methods, Printed by Edwards Brothers, Ann Arbor, Taylor & Francis Inc. 349.
  • [7] Demir, U., Aydın, A., (2016), Desulfurization of high sulfur coal by Electron Transfer Method, XV. Mineral Processing Symposium (IMPS) Istanbul, Turkey
  • [8] Honaker, R. Q., Wang, D., Ho, K., (1996), Application of the falcon concentrator for fine coal cleaning. Minerals Engineering, 9(2), 1143-1156.
  • [9] Honaker, R., Das, A., Nombe, M., (2005), Improving the separation efficiency of the Knelson concentrator using air injection, Coal Preparation, 25, 99–116.
  • [10] Oruç, F., Özgen, S., Sabah, E., (2010), An enhanced-gravity method to recover ultra-fine coal from tailings: Falcon concentrator, Fuel, 89, 2433–2437.
  • [11] Uslu, T., Sahinoglu, E., Yavuz, M., (2012), Desulphurization and deashing of oxidized fine coal by Knelson concentrator, Fuel Processing Technology 101, 94–100.
  • [12] Boylu, F., (2013), Modeling of free and hindered settling conditions for fine coal beneficiation through a falcon concentrator, International Journal of Coal Preparation and Utilization, 33, 277–289.
  • [13] Boylu, F., (2014), Autogenous medium fine coal washing through falcon concentrator. Separation Science and Technology, 49, 627–633.
  • [14] Meshram, P., Purohit, B. K., Sinha, M. K., Sahu, S. K., Pandey, B. D., (2015), Demineralization of low grade coal – A review, Renewable and Sustainable Energy Reviews 41, 745–761.
  • [15] Zhu, X., Tao, Y., Sun, Q., Man, Z., Xıan, Y., (2016), Deashing and desulphurization of fine oxidized coal by falcon concentrator and flotation, Physicochem. Probl. Miner. Process. 52(2), 634−646.
  • [16] Majumder, A. K., Tiwari, V., Barnwal, J. P., (2007),. Separation characteristics of coal fines in a Knelson concentrator—a hydrodynamic approach, International Journal of Coal Preparation and Utilization 27, 126–137.
  • [17] Ghaffari, A., Farzanegan, A., (2017), An investigation on laboratory Knelson Concentrator separation performance: Part 1: Retained mass modelling, Minerals Engineering 112, 57–67.
  • [18] Öney, Ö., Tanrıverdi, M., (2016), Optimization and modeling of fine coal beneficiation by knelson concentrator using central composite design (CCD), The Journal of ORE DRESSING, 14(27), 11-19.
  • [19] Kökkılıç, O., Langlois, R., Waters, K. E., (2015), A design of experiments investigation into dry separation using a Knelson Concentrator, Minerals Engineering 72, 73–86.
  • [20] Knelson Konsantrator., (2012), KC MD3, Kullanım Kılavuzu
  • [21] Honaker, R. Q., Paul, B. C., Wang, D. and Ho, K., (1995), Enhanced gravity separation: an alternative to flotation, High Efficiency Coal Preparation: An International Symposium, SME, Littleton, Colorado, 70-78.
  • [22] Majumder, A. K., and Barnwall, J. P., (2011), Processing of coal fines in a water-only cyclone, Fuel,90, 834–837.
  • [23] Paul, B. C., Honaker, R. Q., (1994), Production of ıllinois base compliance coal using enhanced gravity separation, DOE Final Technical Report, DE-FC22-92PC92521
  • [24] Wang, X., Nick, J. M., and Kingman, S., (2008), Segregation of ultrafine particles in a centrifugal fluidized bed separator, Advanced Powder Technology,19, 335–348.
  • [25] Luttrell,G. H., Honaker, R. Q., and Phillips, D. I., (1995), Enhanced gravity separators: new alternatives for fine coal cleaning, 12th International Coal Preparation and Conferance, Lexington, K.Y, 282-292.
  • [26] McLeavy, M., Klein, B., and Grewal, I., (2001), Knelson continuous variable discharge concentrator: analysis of operating variables, International Heavy Minerals Conference, Fremantle, WA.

KÖMÜRDEN İNORGANİK KÜKÜRT VE KÜL UZAKLAŞTIRMADA KNELSON KONSANTRATOR ÇALIŞMA PARAMETRELERİNİN ETKİSİ

Year 2018, Issue: 041, 35 - 47, 16.12.2018

Abstract

Özellikle çok ince boyutlarda serbestleşen altın
kazanımı için geliştirilen Knelson Konsantratör, son zamanlarda birçok cevherin
zenginleştirilmesinde kullanılmaktadır. Knelson konsantratör santrifüj kuvvet
ve yoğunluk farkından yararlanarak ayırma yapan bir cihazdır. Bu çalışmada,
kömürde bulunan ve çevresel sorunlara neden olan çok ince boyutta serbestleşen
kükürt ve kül oluşturan mineral maddenin uzaklaştırılmasında Knelson
Konsantratör kullanılmıştır. Knelson Konsantratör çalışma parametrelerinin (santrifüj
kuvvet, su debisi ve tane boyutu) inorganik kükürt ve kül uzaklaştırmaya olan
etkileri araştırılmıştır. Hem inorganik kükürt hem de kül uzaklaştırmada etkili
olduğu belirlenmiştir.  %7,06 toplam
kükürt içeren kömürden (%3,55 inorganik kükürt bulunmakta), kükürdün %15,02’si,
külün ise %19,45’i uzaklaştırılarak %58,16 yanabilir verimle temiz kömür (90 G
santrifüj kuvvet, 1,6 lt/dak su debisi, 0,150 mm tane boyutu çalışma
koşullarında) elde edilmiştir. 

References

  • [1] Key world energy statistics, (2017), International energy agency (IEA)
  • [2] Jorjani, E,. Rezai, B., Vossoughi, M., Osanloo, M., Abdollahi, M., (2004), Oxidation pretreatment for enhancing desulfurization of coal with sodium butoxide, Minerals Engineering, 17, 545-552.
  • [3] Jorjani, E., Rezai, B., Vossouhgi, M., Osanloo, M., (2004), Desulfurization of Tabas coal with microwave irridation/peroxyacetic acid washing at 25, 55 and 85 oC, Fuel, 83, 943-949.
  • [4] Jorjani, E., Yperman, J., Carleer, R., Rezai, B., (2006), Reductive pyrolysis study of sulfur compounds in different Tabas coal samples (Iran), Fuel 85, 114–120.
  • [5] Demir, U., (2017), Characterization and desulfurization possibilities of high sulfur gediz-turkey coal, Journal of Environmental Science and Engineering A, 6(1), 31-38.
  • [6] Kawatra, S. K., and Eisele, T. C., (2001), Coal desulfurization, high-efficiency preparation methods, Printed by Edwards Brothers, Ann Arbor, Taylor & Francis Inc. 349.
  • [7] Demir, U., Aydın, A., (2016), Desulfurization of high sulfur coal by Electron Transfer Method, XV. Mineral Processing Symposium (IMPS) Istanbul, Turkey
  • [8] Honaker, R. Q., Wang, D., Ho, K., (1996), Application of the falcon concentrator for fine coal cleaning. Minerals Engineering, 9(2), 1143-1156.
  • [9] Honaker, R., Das, A., Nombe, M., (2005), Improving the separation efficiency of the Knelson concentrator using air injection, Coal Preparation, 25, 99–116.
  • [10] Oruç, F., Özgen, S., Sabah, E., (2010), An enhanced-gravity method to recover ultra-fine coal from tailings: Falcon concentrator, Fuel, 89, 2433–2437.
  • [11] Uslu, T., Sahinoglu, E., Yavuz, M., (2012), Desulphurization and deashing of oxidized fine coal by Knelson concentrator, Fuel Processing Technology 101, 94–100.
  • [12] Boylu, F., (2013), Modeling of free and hindered settling conditions for fine coal beneficiation through a falcon concentrator, International Journal of Coal Preparation and Utilization, 33, 277–289.
  • [13] Boylu, F., (2014), Autogenous medium fine coal washing through falcon concentrator. Separation Science and Technology, 49, 627–633.
  • [14] Meshram, P., Purohit, B. K., Sinha, M. K., Sahu, S. K., Pandey, B. D., (2015), Demineralization of low grade coal – A review, Renewable and Sustainable Energy Reviews 41, 745–761.
  • [15] Zhu, X., Tao, Y., Sun, Q., Man, Z., Xıan, Y., (2016), Deashing and desulphurization of fine oxidized coal by falcon concentrator and flotation, Physicochem. Probl. Miner. Process. 52(2), 634−646.
  • [16] Majumder, A. K., Tiwari, V., Barnwal, J. P., (2007),. Separation characteristics of coal fines in a Knelson concentrator—a hydrodynamic approach, International Journal of Coal Preparation and Utilization 27, 126–137.
  • [17] Ghaffari, A., Farzanegan, A., (2017), An investigation on laboratory Knelson Concentrator separation performance: Part 1: Retained mass modelling, Minerals Engineering 112, 57–67.
  • [18] Öney, Ö., Tanrıverdi, M., (2016), Optimization and modeling of fine coal beneficiation by knelson concentrator using central composite design (CCD), The Journal of ORE DRESSING, 14(27), 11-19.
  • [19] Kökkılıç, O., Langlois, R., Waters, K. E., (2015), A design of experiments investigation into dry separation using a Knelson Concentrator, Minerals Engineering 72, 73–86.
  • [20] Knelson Konsantrator., (2012), KC MD3, Kullanım Kılavuzu
  • [21] Honaker, R. Q., Paul, B. C., Wang, D. and Ho, K., (1995), Enhanced gravity separation: an alternative to flotation, High Efficiency Coal Preparation: An International Symposium, SME, Littleton, Colorado, 70-78.
  • [22] Majumder, A. K., and Barnwall, J. P., (2011), Processing of coal fines in a water-only cyclone, Fuel,90, 834–837.
  • [23] Paul, B. C., Honaker, R. Q., (1994), Production of ıllinois base compliance coal using enhanced gravity separation, DOE Final Technical Report, DE-FC22-92PC92521
  • [24] Wang, X., Nick, J. M., and Kingman, S., (2008), Segregation of ultrafine particles in a centrifugal fluidized bed separator, Advanced Powder Technology,19, 335–348.
  • [25] Luttrell,G. H., Honaker, R. Q., and Phillips, D. I., (1995), Enhanced gravity separators: new alternatives for fine coal cleaning, 12th International Coal Preparation and Conferance, Lexington, K.Y, 282-292.
  • [26] McLeavy, M., Klein, B., and Grewal, I., (2001), Knelson continuous variable discharge concentrator: analysis of operating variables, International Heavy Minerals Conference, Fremantle, WA.
There are 26 citations in total.

Details

Primary Language Turkish
Journal Section Articles
Authors

Uğur Demir

Publication Date December 16, 2018
Published in Issue Year 2018 Issue: 041

Cite

APA Demir, U. (2018). KÖMÜRDEN İNORGANİK KÜKÜRT VE KÜL UZAKLAŞTIRMADA KNELSON KONSANTRATOR ÇALIŞMA PARAMETRELERİNİN ETKİSİ. Journal of Science and Technology of Dumlupınar University(041), 35-47.

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