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Reports of MOEJ/GEC JCM Feasibility Study: FY2013

Title of Study JCM Feasibility Study
Energy Conservation in Cement Plant
FYFY 2013
Main Implementing EntityTaiheiyo Engineering Corporation
Study PartnersTaiheiyo Cement Corporation, and Osumi Corporation
Location of Project/ActivityDarkhan, Mongolia
Category of Project/ActivityEnergy Efficiency Improvement
Study Report

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/ActivityEnergy conservation and GHG emission reduction in Cement plant is to be achieved by introducing dry process instead of existing wet process
JCM MethodologyEligibility Criteria
  1. 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
  2. After conversion of process, unit CO2 emission within the current production capacity shall be lower by 35% or more than reference scenario.
  3. To evaluate by total performance, CO2 emission shall be lower 8% or more than that of Mongolian dry processes
  4. Having sufficient performance for environment protection by installing ESP or bag-filter to satisfy environmental regulatory standard and similar standard.
  5. After operation, the facility can reduce energy loss with smooth and stable operation. Annual operation days are expected above 300 days.
Default Values
  • 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 EmissionsWet 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 MethodCoal 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 ImpactsNo environmental impact is expected since proposed process shall be equipped with ESP or bag filter.
Project Plan2014 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 TechnologiesJapanese 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.

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