A Study on the Estimation of Emission Intensity and Response for Greenhouse Gas Reduction in the Lime Industry

The lime industry accounts for about 75% of greenhouse gases generated from process emissions, and because large amounts of fossil fuels are used, the intensity of greenhouse gas emissions per unit of product production is quite high. In order to respond more accurately and quickly to greenhouse gas regulations, including the domestic emissions trading system, it is necessary to establish a system for accurately identifying greenhouse gas emission sources and calculating emissions for each lime manufacturing process. In this study, in order for limestone processing companies to effectively respond to the domestic greenhouse gas emissions trading system, the operation method, input raw materials, and fuel differences for each type of limestone kiln were identified through field surveys, and the greenhouse gas emission intensity was analyzed As a results, it was confirmed that greenhouse gas emissions were reduced when using a Parallel flow regenerative kiln compared to an improved shaft kiln even when the same amount of limestone was used.