『Abstract
　China is the largest coke producer in the world, accounting for over 60% of the world coke production, which makes the coke industry in China a significant coal consumer and air pollutant emitter. Recently, China has taken a series of measures to improve energy efficiency and reduce emissions from the coke industry, including eliminating old and low energy-efficiency coking technologies, promoting advanced technologies, and strengthening energy and environmental requirements on coking processes. As a consequence, China's coke industry is experiencing an unprecedented technology shift, which was characterized by the elimination of old, inefficient, and polluting indigenous ovens and small machinery ones within 10 years. This study examines the policies and the prompt technology shift in China's coke industry, as well as the associated energy and environmental effects, and discusses the implications with respect to the development of the coke industry in China towards a more efficient and clean future. As China sets stricter requirements on energy efficiency and the ambient environment, a more significant change focusing on technologies of energy saving and emission reduction is urgently needed at present. Those mature technologies, including coke dry quenching, coke oven gas recycle, fine particle removal, etc., should be enforced in the near future.

Keywords: Coke making; Energy efficiencies; Emissions』

1. Introduction
2. Overview of technologies used in coke industry
3. Policies on coke industry
　3.1. Phasing out indigenous/modified ovens
　3.2. Market entry criteria for coke industry
　3.3. Energy efficiency policies
　3.4. Environmental performance requirements
　3.5. Export tax on coke
4. Technology shift of coke industry
5. Energy and environmental implications
　5.1. Energy efficiency
　5.2. Environmental performance
6. Conclusions
Acknowledgments
References