Record number :
Title of article :
Microwave heating of coal for enhanced magnetic removal of pyrite
Author/Authors :
Uslu، نويسنده , , T. and Atalay، نويسنده , , ـ.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Pages :
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Abstract :
Amenability of Aşkale coal to desulfurization by magnetic separation following microwave heating was investigated. The coal was subjected to magnetic separation at 2 T following the treatment in a microwave oven at 850-W power and 2.45-GHz frequency. The increase in magnetic property by microwave heating at 850 W and 2.45 GHz was not sufficient to enhance the removal of considerable amount pyritic sulfur from the coal by magnetic separation at 2 T. Pyritic sulfur content was reduced by 37.46%. With the addition of 5% magnetite, which is an excellent microwave absorber mineral, microwave heating was enhanced and pyritic sulfur content of coal was reduced by 55.11%, by magnetic separation at magnetic field intensity of 2 T following the microwave heating. In addition, 21.54% decrease in ash content and 20.39% increase in calorific value also resulted.
Keywords :
Coal desulfurization , microwave heating , Magnetic separation
Journal title :
Fuel Processing Technology
Serial Year :
Link To Document :