Chen,W. and Xu,R.(2010): Clean coal technology development in China. Energy Policy, 38, 2123-2130.

『中国のクリーンコールテクノロジーの発達』


Abstract
 Coal is found in huge amounts throughout the world and is expected to play a crucial role as an abundant energy source. However, one critical issue in promoting coal utilization is controlling environmental pollution. Clean coal technologies are needed to utilize coal in an environmentally acceptable way and to improve coal utilization efficiency. This paper describes coal's role in China's energy system and the environmental issues related to coal use. Coal is responsible for 90% of the SO2 emissions, 70% of the dust emissions, 67% of the NOx emissions, and 70% of the CO2 emissions. But as the most abundant energy resource, it will continue to be the dominant energy supply for a long time. Therefore, the development and deployment of clean coal technologies are crucial to promote sustainable development in China. Clean coal technologies currently being developed in China are described including high efficiency combustion and advanced power generation technologies, coal transformation technologies, IGCC (integrated gasification combined cycle) and carbon capture and storage (CCS). Although China only recently began developing clean coal technologies, there have been many successes. Most recent orders of coal-fired power plants are units larger than 600 MW and new orders for supercritical and ultra supercritical systems are increasing rapidly. Many national research programs, industrial research programs and international collaboration projects have been launched to develop on IGCC and CCS systems in China. Finally, suggestions are given on how to further promote clean coal technologies in China.

Keywords: China; Clean coal technology; Sustainable development』

1. China's coal dominant energy system
 1.1. Coal: the most abundant fossil energy resource
 1.2. Coal provides around 70% of the total primary energy consumption
 1.3. Power sector consumed nearly half of the coal
 1.4. Coal consumption in end-use demand sectors
2. Coal: the major source of local air pollution and carbon emissions
 2.1. Local air pollution
 2.2. Carbon emissions
3. Current status and development of clean coal technologies in China
 3.1. High efficiency combustion and advanced power generation technologies
  3.1.1. Supercritical and ultra-supercritical systems
  3.1.2. Circulating fluidized beds
  3.1.3. Flue gas desulphurization and NOx removal
 3.2. Coal transformation
  3.2.1. Gasification
  3.2.2. Liquefaction
 3.3. Integrated gasification combined cycle (IGCC)
 3.4. Carbon capture and storage technology
  3.4.1. National science and technology programs for CCS in China
  3.4.2. China's industrial development of CCS
  3.4.3. International partnerships on CCS
4. Concluding remarks
References


Fig. 2. China’s primary energy consumption from 1980 to 2007.


Fig. 3. Coal consumption for power and the % of coal used for power in the total coal consumption.


Fig. 5. Coal Consumption and Percentage in the total final energy consumption from 1991to2005.


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