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Iranian Journal of Chemistry and Chemical Engineering، جلد ۳۸، شماره ۲، صفحات ۲۵۳-۲۶۱
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عنوان انگلیسی Selection of Appropriate Model for the Synthesis of Coal Water Slurry (CWS) Using PVA and TEA
چکیده انگلیسی مقاله Coal-Water Slurry (CWS) is an attractive alternative fuel with lower cost and reliable in terms of transportation and handling. The efficiency of CWS gasification depends on the preparation of CWS to ensure the higher carbon contents and low viscosity which will enhance the heating rates along with the atomization of CWS. In this paper, the rheology of CWS was studiedwith coal loading 30 to 60% and the rheological behavior was discussed with the help of Power-law, Casson and Herschel Buckley models which shows that CWS exhibits pseudo-plastic (shear thinning) behavior. The CWS was prepared by using Poly-Vinyl Alcohol (PVA) and Triethanol Amine (TEA) as dispersants and Xanthan gum as a stabilizer. The experimental results showed that for a constant coal loading viscosity decreases as the shear rate increases and out of these rheological models, power-law fits best on the experimental data with the highest R2 of 0.99
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نویسندگان مقاله Nadia Khan |
Polymer and Petrochemical Engineering Department, NED University of Engineering &Technology, Karachi, PAKISTAN

Syed Ali Ammar Taqvi |
Chemical Engineering Department, Universiti Teknologi PETRONAS (UTP), 32610 Seri Iskandar Perak, MALAYSIA

Hamza Bin Rafiq |
Polymer and Petrochemical Engineering Department, NED University of Engineering &Technology, Karachi, PAKISTAN

Asra Nafees |
Polymer and Petrochemical Engineering Department, NED University of Engineering &Technology, Karachi, PAKISTAN

Haslinda Zabiri |
Chemical Engineering Department, Universiti Teknologi PETRONAS (UTP), 32610 Seri Iskandar Perak, MALAYSIA

نشانی اینترنتی http://www.ijcce.ac.ir/article_33852_9ec48242609a00e7b30fa05d1a0113f1.pdf
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