Carbon foot print of the cement industry: a case study in India | |
| Author | Mohd, Shafiqh |
| Call Number | AIT RSPR no.ET-18-04 |
| Subject(s) | Cement industries--India Carbon foot print--India |
| Note | A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Energy |
| Publisher | Asian Institute of Technology |
| Series Statement | |
| Abstract | India is the second largest producer of cement in the world producing 400 MT of cement annually and Andhra Pradesh has the highest number of cement plants accumulated in this region producing 55 Mt of cement annually making it the leading cement producing state in India. The main reason for the accumulation of cement plants in Andhra Pradesh is due to presence 1/3th of India’s limestone reserves in this region. Cement manufacturing process yields high carbon dioxide emissions mainly from calcination and fossil fuel combustion. This research study estimates the carbon footprint of a cement plant named Nagarjuna Cements located in Andhra Pradesh that has an annual cement production capacity of 2 MT and potential emission reduction technologies in terms of retrofitting of old equipment with the modern technologies and Alternative Fuel substitution have been suggested. The Carbon dioxide emission from the plants were 4705 tons of CO2 per day is emitted for 6000 tons of cement produced in the plant i.e. 0.8 Ton CO2/ Ton of cement.The Sulphur dioxide emissions from the plant are 10 tons per day for 6000 tons of cement production. The carbon dioxide emission reduction opportunities were suggested that included the retrofitting of Preheater from 4 stage to 6 stage, Planetary Clinker cooler to Reciprocating grate cooler and Coal and cement grinding systems from Ball mills to Vertical Roller Mills that led to a cumulative CO2 Emission reduction of 0.3 Ton CO2/ Ton of cement and electrical savings of 0.15 kWh/ Ton of cement.The cost associated with the retrofitting sums up to 112 Million INR. Use of Refused derived fuel was suggested instead of coal by substitution rates of 30% and 60% for RDF leading to decrease in CO2 Emission reduction of 0.06 Ton CO2/ Ton of cement for 30% RDF substitution and 0.11 Ton of CO2/ Ton of cement for 60% RDF substitution. The cost saved by usage of RDF instead of coal for 30% and 60% were 373 Million INR/annually and 746 million INR/annually respectively, though the cost of the RDF feeding system is 100 Million INR. The Reduction of CO2 Emissions due to 30% RDF usage and retrofitting leads to cumulative reduction of 0.091 Ton CO2/Ton of cement and 60% RDF usage with retrofitting leads to cumulative reduction of 0.151 Ton CO2/ Ton of cement. |
| Year | 2018 |
| Corresponding Series Added Entry | |
| Type | Research Study Project Report (RSPR) |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Energy Technology (ET) |
| Chairperson(s) | Salam, P. Abdul |
| Examination Committee(s) | Kumar, Sivanappan;Singh, Jai Govind |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship |
| Degree | Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 2018 |