Cement Energy and Environment

Table 1. Yearly Electricity and Fuel Consumption of the plant (Forecast) 2011 2012 2013 2014 Electricity (kWh) 210.000 190.000 220.000 215.000 Petcoke(ton) 150.000 165.000 168.000 170.000 Natural gas (m 3 ) 975.000 1.025.000 1.030.000 1.000.000 Fuel oil (ton) 180 200 200 200 Diesel (ton) 750 6.500 6.500 6.000 / Total Amount($) 55.000.000 65.000.000 70.000.000 75.000.000 t Table 2. Units' Specific Energy Consumption by Years CONSUMPTION OF SPECIFIC ELECTRICAL ENERGY (kWh/ ton product) UNITS 2009 . 2010 I PREBLENDING (kWh/ton raw material) 0,20 0,35 CRUSHERS (kWh/ton raw material) I 1'10 1,0 II 0,75 0,90 RAW MILLS (kWh/ ton raw material) I 27,0 25,0 II 18,0 15,5 ROTARY KILNS (kWh/ ton clinker) I 36,0 33,0 II 28,0 25,95 COAL MILL (kWh/ ton coal) I 23,0 24,19 II 37,5 35,74 CEMENT MILLS (kWh/ ton cement) I 37,5 35,74 II 30,0 34,71 Ill 35,0 34,09 PACKAGING UNITS (kWh/ ton cement) 0,8 0,6 COMPRESSOR (kWh/ ton cement) 3,0 2,10 SOCIAL FACILITIES (kWh/ ton cement) 0,04 0,25 LIGHTING (kWh/ ton cement) 0,38 0,3 ELECTRICAL EERGY LOSSES (kWh/ ton cement) 2,1 3,0 GASOLINE (kWh/ ton cement) 0,091 0,0085 DIESEL (kWh/ ton cement) 0,374 0,436 SPECIFIC HEAT ENERGY (kCal/ clinker) 1ST ROTARY KILN 2ND ROTARY KILN UNITS 2009 860 820 2010 845 800 2011 0,40 0,95 0,80 26,0 17,0 37,0 26,23 25,1 4 36,47 36,47 35,3 35,87 0,75 2,0 0,32 0,4 2,5 0,036 0,418 2011 835 805 2012 0,40 0,80 0,90 25,0 20,0 35,0 30,0 25,0 38,0 38,0 38,57 41 ,0 0,8 2,0 0,2 0,30 2,3 0,04 0,50 2012 825 810 2013 0,35 0,80 0,85 26,0 19,0 34,0 28,0 23,0 35,0 35,0 36,0 36,0 0,7 2,0 0,2 0,3 2,2 0,05 0,45 2013 825 805 10