Metrika

  • citati u SCIndeksu: 0
  • citati u CrossRef-u:0
  • citati u Google Scholaru:[]
  • posete u poslednjih 30 dana:8
  • preuzimanja u poslednjih 30 dana:6

Sadržaj

članak: 1 od 1  
2021, vol. 57, br. 1, str. 27-32
Uticaj temperature pirolize na stepen odsumporavanja uglja nižeg ranga sa visokim sadržajem organskog sumpora
aChina University of Mining and Technology, School of Chemical Engineering and Technology, Jiangsu, China
bUniverzitet u Beogradu, Tehnički fakultet u Boru

e-adresaxiawencheng@cumt.edu.cn
Ključne reči: odsumporavanje uglja; piroliza; XPS; kalorična vrednost; sadržaj sumpora
Sažetak
Sumpor u uglju utiče ne samo na kvalitet koksa već i zagađuje životnu sredinu prilikom sagorevanja. Postupak odsumporavanja uglja sa visokim sadržajem organskog sumpora predstavlja ključno pitanje u nauci o čišćenje uglja. Kako se piroliza koristi u konverziji uglja niskog ranga za dobijanje gasnih/tečnih proizvoda i drvenog uglja, uticaj odsumporavanja prilikom pirolize uglja niskog ranga sa visokim sadržajem organskog sumpora zahteva dalja istraživanja. U ovom radu je ispitivan stepen odsumporavanja uglja niskog ranga sa visokim sadržajem sumpora, kao i promena kalorijske vrednosti uglja i oblika sumpora tokom pirolize. Za analizu promene regulacije sumpora koji nastaje na površini uglja primenjen je XPS. Rezultati su pokazali da je određena količina FeS nastala prilikom pirolize, a da su velike količine sulfatnog sumpora prešle u piritni sumpor i formirale više FeS2 u poređenju sa rovnim ugljem. Ukupan sadržaj sumpora u uglju je smanjen sa 2,32% za rovni ugalj na 1,68% za ugalj dobijen pirolizom na 700°C i tada je temperatura pirolize imala Mali uticaj na sadržaj sumpora. Ukupna kalorična vrednost (pri konstantnoj zapremini i na suvom vazduhu) povećana je sa 17,38 kJ za rovni ugalj na 24,35 kJ za ugalj dobijen pirolizom na 700°C. Temperatura pirolize od 700°C se može smatrati najboljom temperaturom za ovaj postupak zbog niskog sadržaja sumpora i visoke toplotne vrednosti.
Reference
Amjed, N., Bhatti, I.A., Nazir, A., Iqbal, M. (2017) Microwave-assisted desulfurization of coal by photo-catalytic oxidation treatment. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 39 (10), 1043-1049
Baatar, B., Gan-Erdene, T., Myekhlai, M., Otgonbayar, U., Majaa, C., Turmunkh, Y., Javkhlantugs, N. (2017) Desulfurization of coal using the electrochemical technique in neutral and alkaline media. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 39 (15), 1610-1616
Calkins, W.H. (1994) The chemical forms of sulfur in coal: a review. Fuel, 73(4): 475-484
Cheng, J., Zhou, J., Liu, J., Zhou, Z., Huang, Z., Cao, X., Zhao, X., Cen, K. (2003) Sulfur removal at high temperature during coal combustion in furnaces: a review. Progress in Energy and Combustion Science, 29(5): 381-405
Demirbaş, A. (2002) Demineralization and desulfurization of coals via column froth flotation and different methods. Energy Conversion and Management, 43(7): 885-895
Gryglewicz, G.Y., Wilk, P., Yperman, J., Franco, D.V., Maes, I.I., Mullens, J., van Poucke, L.C. (1996) Interaction of the organic matrix with pyrite during pyrolysis of a high-sulfur bituminous coal. Fuel, 75(13): 1499-1504
Grzybek, T., Pietrzak, R., Wachowska, H. (2002) X-ray photoelectron spectroscopy study of oxidized coals with different sulphur content. Fuel Processing Technology, 77: 1-7
Grzybek, T., Pietrzak, R., Wachowska, H. (2004) The Comparison of Oxygen and Sulfur Species Formed by Coal Oxidation with O2/Na2CO3 or Peroxyacetic Acid Solution. XPS Studies. Energy & Fuels, 18(3): 804-809
Gürü, M., Sariöz, B., Cakanyildirim, C. (2008) Oxidative desulfurization of tufanbeyli coal by hydrogen peroxide solution. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 30 (11), 981-987
Ibarra, J., Palacios, J., Moliner, R., Bonet, A.J. (1994) Evidence of reciprocal organic matter-pyrite interactions affecting sulfur removal during coal pyrolysis. Fuel, 73(7): 1046-1050
Iqbal, M., Ghaffar, A., Nazir, A., Yameen, M., Munir, B., Nisar, N., Bokhari, T.H. (2017) Coal desulfurization using gamma and ultraviolet radiation. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 39(11): 1109-1115
Irum, S., Akhtar, J., Sheikh, N., Munir, S. (2017) Oxidative desulfurization of Chakwal coal using potassium permanganate, ferric sulfate, and sodium hypochlorite. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 39(4): 426-432
Lin, D., Qiu, P., Xie, X., Zhao, Y., Chen, G., Zeng, L. (2018) Chemical structure and pyrolysis characteristics of demineralized Zhundong Coal. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 40(3): 282-287
Mi, J., Ren, J., Wang, J.-.C., Bao, W.-.R., Xie, K.-.C. (2007) Ultrasonic and Microwave Desulfurization of Coal in Tetrachloroethylene. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 29(14): 1261-1268
Mullens, S., Yperman, J., Reggers, G., Carleer, R., Buchanan, I.I.I.A.C., Britt, P.F., Rutkowski, P., Gryglewicz, G. (2003) A study of the reductive pyrolysis behaviour of sulphur model compounds. Journal of Analytical and Applied Pyrolysis, 70(2): 469-491
Pietrzak, R., Wachowska, H. (2006) The influence of oxidation with HNO3 on the surface composition of high-sulphur coals: XPS study. Fuel Processing Technology, 87(11): 1021-1029
Sokolović, J., Stanojlović, R.R., Marković, Z.S. (2006) Effect of oxidation on flotation and electro kinetic properties of coal. Journal of Mining and Metallurgy A: Mining, vol. 42, br. 1, str. 69-81
Tang, L., Fan, H., Guo, J., Zeng, W., Tao, X. (2018) Investigation on the mechanism of coal desulfurization by ultrasonic with peroxyacetic acid. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 1-11
Telfer, M., Zhang, D. (2001) The influence of water-soluble and acid-soluble inorganic matter on sulphur transformations during pyrolysis of low-rank coals. Fuel, 80(14): 2085-2098
Wahab, A., Nawaz, S., Shahzad, K., Akhtar, J., Kanwal, S., Munir, S., Sheikh, N. (2015) Desulfurization and Demineralization of Lakhra Coal by Molten Caustic Leaching. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 37(11): 1219-1223
Wang, B., Li, L., Huang, Y., Zhang, J. (2016) Behavior of sulfur and arsenic during co-pyrolysis of Tuanbo-2 coal and sawdust when adding crown ether. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 38(6): 882-889
Wang, H., Song, Q., Yao, Q., Chen, C. (2008) Experimental study on removal effect of wet flue gas desulfurization system on fine particles from a coal-fired power plant. Proceedings-Chinese Society of electrical engineering, 28(5): 1
Xia, W. (2018) A novel and effective method for removing organic sulfur from low rank coal. Journal of Cleaner Production, 172: 2708-2710
Xia, W., Li, Y., Nguyen, A.V. (2018) Improving coal flotation using the mixture of candle soot and hydrocarbon oil as a novel flotation collector. Journal of Cleaner Production, 195: 1183-1189
Xia, W., Zhou, C., Peng, Y. (2017) Enhancing flotation cleaning of intruded coal dry-ground with heavy oil. Journal of Cleaner Production, 161: 591-597
Xia, W., Niu, C., Ren, C. (2017) Enhancement in floatability of sub-bituminous coal by low-temperature pyrolysis and its potential application in coal cleaning. Journal of Cleaner Production, 168: 1032-1038
Xia, W., Li, Y., He, W., Peng, Y. (2018) Desulfurization of low rank coal co-pyrolysis with reduced iron powder followed by dry magnetic separation. Journal of Cleaner Production, 204: 525-531
Xia, W., Niu, C. (2018) Effect of middle-temperature pyrolysis on the surface hydrophobicity of sub-bituminous coal. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 40(3): 320-326
Xu, L., Ni, J., Yang, J., Li, Y., Liu, Z. (2006) Dynamic Behaviors of Sulfur Evolved in the Gas Phase from Pyrolysis of Six Chinese Coals. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 28(3): 281-293
Xu, L. (2003) Effects of Organic Gaseous Additives on Desulfurization of Coal During Pyrolysis. Energy Sources, 25(10): 1033-1042
Yan, J., Yang, J., Liu, Z. (2005) SH Radical: The Key Intermediate in Sulfur Transformation during Thermal Processing of Coal. Environmental Science & Technology, 39(13): 5043-5051
Yani, S., Zhang, D. (2010) An experimental study of sulphate transformation during pyrolysis of an Australian lignite. Fuel Processing Technology, 91(3): 313-321
 

O članku

jezik rada: engleski
vrsta rada: izvorni naučni članak
DOI: 10.5937/JMMA2101027X
primljen: 02.11.2020.
prihvaćen: 30.03.2021.
objavljen u SCIndeksu: 28.12.2021.
Creative Commons License 4.0

Povezani članci