Journal
Article title
Authors
Title variants
Languages of publication
Abstracts
Coal is the most important energy source, but its application in traditional way causes pollution. Preparation of coal-water liquids consists of: initial crushing of coal, wet milling in mixer mill and homogenization. To obtain coal-water liquids there were used three kinds of materials: coal of medium assortment with a low content of ash (6-25 mm), fine coal (0-20 mm) and coal sludge. The parameters of the grinding process which results in coal-water suspensions characterized by the most advantageous functional properties (high stability, low density and viscosity and the smallest equivalent diameter of particles of coal in a slurry) have been chosen and the influence of additives on the listed properties of the suspensions was determined. For suspensions consisted of water and coal independent parameters were vibration frequency 30 1/s, one ball with diameter of 15 mm and amount of water: 70 wt%. Substances which were applied to improve the properties of coal-water suspensions were: Triton X-405, sodium carboxymethyl cellulose and poly(acrylic acid), partial sodium salt-graft-poly(ethylene oxide). The best stability, low viscosity and the lowest density of the suspensions were characterized by coal, water and 0.1 wt% of carboxymethyl cellulose as a result of the 30 min milling.
Keywords
Discipline
Journal
Year
Volume
Issue
Pages
1025-1029
Physical description
Dates
published
2014-10
Contributors
author
- Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland
author
- Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland
author
- Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland
References
- [1] J. Kucowski, D. Laudyn, M. Przekwas, Energetyka a ochrona środowiska, WNT, Warszawa 1997 (in Polish)
- [2] T. Doniecki, Analiza porównawcza mułów węglowych z różnych rejonów wydobywczych jako materiałdo budowy barier izolacyjnych. Zrównoważona produkcja i konsumpcja surowców mineralnych, Wydawnictwo IGSMiE PAN, Kraków 2011 (in Polish)
- [3] J. Biegańska, M. Czop, Analiza odpadów górniczych w aspekcie ich zagospodarowania. Zrównoważona produkcja i konsumpcja surowców mineralnych, Wydawnictwo IGSMiE PAN, Kraków 2011 (in Polish)
- [4] J. Dublewski, B. Madej, New developments in the polish mining industry - waste management rules now and in the future. Sustainable Post-Mining Land Management, CUPRUM OBR, Wrocław 2004
- [5] J. Hycnar, Wiadomości Górnicze 2, 63 (2001) (in Polish)
- [6] Patent WO 81/01152
- [7] Patent US 4282006
- [8] R. Turian, J. Attal, D. Dung, L. Wedgewood, Fuel 81, 2019 (2002), doi: 10.1016/S0016-2361(02)00149-7
- [9] Z. Aktas, E.T. Woodburn, Fuel Process. Technol. 62, 1 (2000), doi: 10.1016/S0378-3820(99)00059-4
- [10] S. Lee, J.G. Speight, S.K. Loyalka, Handbook of Alternative Fuel Technologies, CRC Press Taylor & Francis Group, New York 2007
- [11] J.S. Laskowski, Fizykochemiczne Problemy Metalurgii 24, 11 (1991) (in Polish)
- [12] A. Al-Amrousi, M. Al-Sabagh, M. Osman, Fuel 75, 1193 (1996), doi: 10.1016/0016-2361(96)00069-5
- [13] Patent US 4265407
- [14] A. Heim, Procesy mechaniczne i urządzenia do ich realizacji, Wydawnictwo Politechniki Łódzkiej, Łódź 1996 (in Polish)
- [15] V. Seshadri, S.N. Singh, K.K. Jain, A.K. Verma, Mech. Eng. 89, 3 (2008)
- [16] H.K. Naik, M.K. Mishra, U.M. Rao Karanam, Coal Combust. Gasif. Prod. 1, 25 (2009), doi: 10.4177/CCGP-D-09-00005.1
- [17] E.S. Mosa, A.M. Saleh, T.A. Taha, A.M. El-Molla, Physicochem. Probl. Min. Process. 42, 107 (2008)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv126n437kz