wAbstract
@This study analyzes current energy and carbon dioxide (CO2) emission trends in China's cement industry
as the basis for modeling different levels of cement production
and rates of efficiency improvement and carbon reduction in 2011-2030.
Three cement output projections are developed based on analyses
of historical production and physical and macroeconomic drivers.
For each of these three production projections, energy savings
and CO2 emission reduction potentials are
estimated in a best practice scenario and two cumulative final
energy savings of 27.1 to 37.5 exajoules and energy-related direct
emission reductions of 3.2 to 4.4 gigatonnes in 2011-2030 under
the best practice scenarios. The continuous improvement scenarios
produce cumulative final energy savings of 6.0 to 18.9 exajoules
and reduce CO2 emissions by 1.0 to 2.4 gigatonnes.
This analysis highlights that increasing energy efficiency is
the most important policy measure for reducing the cement industry's
energy and emissions intensity, given the current state of the
industry and the unlikelihood of significant carbon capture and
storage before 2030. In addition, policies to reduce total cement
production offer the most direct way of reducing total energy
consumption and CO2 emissions.
Keywords: Cement industry; Energy efficiency; Emissions reductionx
1. Introduction
2. Energy consumption and CO2 emissions of
China's cement industry
3. Projections of China's cement output to 2030
4. Potential energy savings and CO2 emissions
reduction from China's cement industry
@4.1. Scenario assumptions
@4.2. Modeling results and analysis
5. Future outlook of China's cement industry
6. Conclusions
Acknowledgments
References