Calculation and evaluation on carbon emissionfactor of cement production in China

This article summarized the latest progress of a sub-project, Carbon Emission of Cement Production in China, undertaken by Chinese Academy of Sciences. This project seeks to establish a domestic CO 2 emissions factor calculation system for China’s cement production. The Chinese-specific CO 2 emissions factor of cement production will provide a benchmark to support China’s international negotiation on climate change and a baseline for setting emission reduction target. Considering the diversities in different production lines, a sampling survey of cement production lines covering various production technologies and scales has been carried out since the second half of 2011. A two-stage stratified random sampling with unequal probability is devised to ensure the sampling precision. By the end of 2015, 22 provinces have been sampled and a CO 2 emission factor inventory database consisting of 359 cement production lines has been established.