Cement Manufacturers Association (CMA)

42 Fig-2 CO 2 Emissions per tonne of Cement Fig-3 Scope for CO 2 Reduction CO 2 Emissions Per Tonne of Cement Decarbonization Potential Carbon Capture Utilisation and Storage (CCUS) In cement manufacturing the carbon dioxide emissions mainly due to the basic raw material of limestone chemistry itself contribute a major 50% and another 40% due to fuel combustion in the process. It may be feasible to minimise CO 2 emission along with its upstream construction industry mainly considering concrete, however, at present it is focused on how this cement industry alone can achieve net zero emissions. Fig-3 indicates decarbonization potentials possible in four major ways for modern cement plants. Fig-4 illustrates the reduction of carbon dioxide directly and capturing it for use and storage. It is only possible for the cement industry to adopt various types of available CCUS technology, which are in different technology readiness levels (TRL). Different experimental stages of CCUS around the globe are not quite encouraging at present because they need further research, innovation, and economic viability to deploy options suitable for individual cement plants in India. 48% 37% 12% 3% Energy Efficiency Alteranate Fuel Reducing Clinker Cement Ratio Carbon Capture Technology 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 2015 Global China India 2020 2025 2030 2035 2040 2045 2050 2055