Greenhouse gas mitigation potential from waste heat recovery for power generation in cement industry: The case of Thailand

Abstract

The cement industry has the highest proportion of energy consumption and greenhouse gas (GHG) emitted in the Thai demand-side industry sector. Therefore, the potential GHG emission from energy efficiency is necessary to achieve the NDC target. Due to vast thermal energy consumption for cement production, especially clinker production, waste heat recovery utilization for power generation which partially replaced the on-grid electricity for cement production, has been estimated the GHG emission performance tracking in this study. We found that there are 12 waste heat power plants with a total 263.5 MW installed capacity in the Thai cement industry. With a potential of 1,663,674.21 MWh electricity production annually and GHG mitigation potential of 793,572.60 tons CO2eq per year in 2019. This GHG mitigation figure accounts for 7.21% of GHG mitigation targets for the NDC roadmap.