|Title of Study|| JCM Feasibility Study|
|Energy Conservation in Cement Plant|
|Main Implementing Entity||Taiheiyo Engineering Corporation|
|Study Partners||Taiheiyo Cement Corporation, and Osumi Corporation|
|Location of Project/Activity||Darkhan, Mongolia|
|Category of Project/Activity||Energy Efficiency Improvement|
Note: JCM proposed methodology, and calculation sheet are the result of the study. They have neither been officially approved, nor are guaranteed to be officially approved under the JCM.
|Description of Project/Activity||Energy conservation and GHG emission reduction in Cement plant is to be achieved by introducing dry process instead of existing wet process |
|JCM Methodology||Eligibility Criteria||
- Energy efficiency is secured by adopting dry suspension preheater system or dry preheater with precalciner system.
The plant capacity is 2,500t-clinker/day or more, heat consumption shall be 900kcal/kg -clinker or less, electricity consumption shall be 105kWh/t-cement or less
- After conversion of process, unit CO2 emission within the current production capacity shall be lower by 35% or more than reference scenario.
- To evaluate by total performance, CO2 emission shall be lower 8% or more than that of Mongolian dry processes
- Having sufficient performance for environment protection by installing ESP or bag-filter to satisfy environmental regulatory standard and similar standard.
- After operation, the facility can reduce energy loss with smooth and stable operation. Annual operation days are expected above 300 days.
- CO2Emission factor for Coal 101.2 t-CO2/TJ (2006 IPCC Guidelines)
- Grid electricity CO2 Emission factor 1.1030t-CO2/MWh (2009-2010 CDM-Mongolia Grid factor)
- Unit heat value of coal ,200kcal/kg (17,581kJ/kg) (Measured at the plant)
|Calculation of Reference Emissions||Wet process unit energy consumption after operation improvement shall be used as reference unit energy consumption. Reference emission is calculated based on this unit energy consumption ﾗproduction amount.|
|Monitoring Method||Coal consumption and cement production shall be measured certified weight scale per shipment. Monthly inventory is also used.|
Electricity consumption reading of certified transaction meter every month.
Calorific value of fuel measured at plant for every shipment.
|GHG Emission Reductions||
- Calculation of reference emission:
Reference emission＝(Improved unit heat consumption of wet process(Gcal/t-clinker)ﾗproduction volume (Clinker-t/d)ﾗannual running days(d/y) ﾗ CO2emission conversion factor from fuel(CO2-t/Gcal)+ Improved unit electricity consumption of wet process(Gcal/t-clinker) ﾗ production volume(Cement-t/d) ﾗ annual running days (d/y) ﾗ CO2emission conversion factor from grid
Result 437,413 t-CO2/y
- Calculation of project emission:
Project emission =unit heat consumption of dry process (Gcal/t-clinker) ﾗ production volume (Clinker-t/d) ﾗannual running days(d/y) ﾗ CO2emission conversion factor from fuel (CO2-t/Gcal)＋unit electricity consumption of dry process (Gcal/t-clinker)ﾗproduction volume(Cement-t/d) ﾗ annual running days (d/y) ﾗCO2emission conversion factor from grid
Result 251,474 t-CO2/y
- GHG emission reduction: 185,939t-CO2/y
|Environmental Impacts||No environmental impact is expected since proposed process shall be equipped with ESP or bag filter.|
|Project Plan||2014 Completion of feasibility and finance scheme |
Decision of studied plant, confirmation of finance scheme
2015 Commencement of plant construction
2017 Completion of plant construction, commissioning, and commercial operation. Commencement of recording
2018～ Calculation of emission reduction
|Promotion of Japanese Technologies||Japanese technologies are superior in O&M and performance. However high cost prevents its dissemination. Chinese equipment is of competitive price. However, reliability is not enough.|
In this project, Chinese equipment with Japanese technology (supplied by implemented company’s JV) is considered for both price and reliability.
|Sustainable Development in Host Country||
- Infrastructure development is essential in Mongolia to meet the recent economic growth.
- However to meet increasing cement demand, using existing wet process may cause adverse effect to sustainable development of Mongolia with its high energy consumption, environmental impact.
- Introduction of dry process, which is energy efficient, little environment impact, and possible for utilizing recycling waste like coal ash, contributes much for the sustainable development of Mongolia.