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AUTHOR(S):

Georgios E. Giakoumakis, Dimitrios K. Sidiras

 

TITLE

Torrefaction for Increasing Gross Heat of Combustion of Medical Cotton Waste

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ABSTRACT

Cotton is a very popular material that has its own stock market. There are huge amounts of cotton waste and medical cotton waste that can be treated and become a considerable source of energy, instead of buried with other waste in the land-field or incinerated. The purpose of this study was first to examine and then to maximize, if possible, the efficiency of pretreated cotton waste, regarding its gross heat of combustion. More specifically we used a blast furnace in order to torrefy cotton. The cotton torrefaction was achieved through a non-isothermal heating up to 340 oC for 20-50 minutes. The effect of pretreatment conditions, i.e., reaction time and temperature, were investigated using a calorimeter. The diagrams show the heat energy curve and how gross heat of combustion is affected from the conditions applied.

KEYWORDS

cotton, torrefaction, medical waste, gross heat of combustion, recycling, severity factor

REFERENCES

[1] J.C. Lawrence, A Century after Gamgee, Burns, Vol. 13, No.1, 1986, pp. 77-79.

[2] Monthly Economic Letter. October 2017 http://www.cottoninc.com/corporate/market-data/monthlyeconomicletter/pdfs/monthlyeconomicletter-english.pdf (access 14 Oct 2017)

[3] Z.Z. Ismail, A.R. Talib, Recycled medical cotton industry waste as a source of biogas recovery, Journal of Cleaner Production, Vol. 112, 2016, pp. 4413-4418.

[4] A. Isci, G.N. Demirer, Biogas production potential from cotton wastes, Renewable Energy, Vol. 32, 2007, pp. 750-757.

[5] M. Ertas, B Acemioglu, M Hakki Alma, M. Usta, Removal of methylene blue from aqueous solution using cotton stalk, cotton waste and cotton dust, Journal of Hazardous Materials, Vol. 183, 2010, pp. 421-427.

[6] M. Baghdadi, B. Alipour Soltani, M. Nourani, Malachite green removal from aqueous solutions using fibrous cellulose sulfate prepared from medical cotton waste: Comprehensive batch and column studies, Journal of Industrial and Engineering Chemistry, 2017, in press.

[7] H. Taghipour, M. Mosaferi, Characterization of medical waste from hospitals in Tabriz, Iran, Science of the Total Environment, Vol. 407, 2009, 1527-1595.

[8] E. A. Windfeld, M. Su-Ling Brooks, Medical waste management - A review, Journal of Environmental Management, Vol. 163, 2015, pp. 98-108.

[9] Y. Chen, L. LIU, Q. Feng, G Chen, Key issues study on the operation management of medical waste incineration disposal facilities, Procedia Environmental Sciences, Vol. 16, 2012, pp. 208-213.

[10] J. Dengchao, B. Zhenbo, Y. Xinping, Effects of Vacuum on Sterilizing Rate in Medical Waste Steam Treatment Process, Procedia Environmental Sciences, Vol. 11, 2011, pp. 1407-1411.

[11] A. Graikos, E. Voudrias, A. Papazachariou, N. Iosifidis, M. Kalpakidou, Composition and production rate of medical waste from a small producer in Greece, Waste Management, Vol. 30, 2010, pp. 1683-1689.

[12] Dimitrios P. Komilis, Issues on medical waste management research, Waste Management, Vol. 48, 2016, pp. 1-2.

[13] JJ Perkins, Principles and Methods of Sterlization in Health Sciences, Charles C. Thomas, 1969.

[14] S. Wang, G. Dai, B. Ru, Y. Zhao, X. Wang, G. Xiao, Influence of torrefaction on the characteristics and pyrolysis behaviour of cellulose, Energy, Vol. 120, 2017, pp. 864-871.

[15] T.R.K.C. Doddapaneni, J. Konttinen, T. Hukka, Influence of torrefaction pretreatment on the pyrolysis of Eucalyptus clone: A study on kinetics, reaction mechanism and heat flow, Industrial Crops and Product, Vol. 92, 2016, pp. 244-254.

[16] Q-V. Bach, K-Q Tran, dry and wet torrefaction of woody biomass – A comparative study on combustion kinetics, Energy Procedia, Vol. 75, No.1, 2015, pp. 150-155.

[17] Y-H. Kim, B-Il. Na,B-J. Ahn, H-W. Lee, J-W Lee, Optimal condition of torrefaction for high energy density solid fuel of fast growing tree species, Korean Journal of Chemical Engineering Vol.32, No.8, 2015, pp. 1547-1553. Georgios E. Giakoumakis, Dimitrios K. Sidiras

[18] ISO 1716:2010 Preview Reaction to fire tests for products -- Determination of the gross heat of combustion (calorific value).

[19] R. Overend, E. Chornet., Fractionation of lignocellulosics by steam-aqueous pretreatments, Philosophical Transactions of the Royal Society of London, Vol. 321,No.1, 1987, pp. 523-536.

[20] D. Sidiras, F. Batzias, R. Ranjan, M. Tsapatsis, Simulation and optimization of batch autohydrolysis of wheat straw to monosaccharides and oligosaccharides, Bioresource Technology, Vol. 102, No.1, 2011, pp. 10486-10492.

Cite this paper

Georgios E. Giakoumakis, Dimitrios K. Sidiras. (2017) Torrefaction for Increasing Gross Heat of Combustion of Medical Cotton Waste. International Journal of Economics and Management Systems, 2, 350-355

 

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