Abstract
The cement industry is one of the energy intensive industries such as petrochemical and steel industry. The energy efficiency of cement industry is high comparing to oversea's cement industries due to the enforcement of energy conservation policies. The purpose of this study is estimate emission factors for greenhouse gas (<TEX>$CO_{2}$</TEX>) in cement industry. The results of field study, quicklime contained quantity of five factories were <TEX>$0.64{\sim}0.65$</TEX>. Measurement emission (15,382 ton/day) is 40% higher than process emission (8,929 ton/day) on the IPCC Guidelines (1996). Add to combustion emission on the lines of IPCC Guidelines (1996) is similar to the emission of this study. The emission factor of greenhouse gas (<TEX>$CO_{2}$</TEX>) were as follows the emission factor between <TEX>$9.01E-01{\sim}2.15E-01\;ton/ton$</TEX> for <TEX>$CO_{2}$</TEX>. The result of this study is higher than emission factor of IPCC (0.51) but it is similar to U.S. EPA's (0.952).
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