In recent years, the rapid economic development has led to the sustained growth of China's energy consumption. At the end of 2013, China's total energy consumption reached 3.75 billion tons of standard coal, including 2.475 billion tons of coal consumption, accounting for 66% of the total energy consumption and 6 billion tons of greenhouse gas emissions As a big energy consumer, China's energy structure is clean and low-carbon The coal based energy structure supports the rapid development of China's economy, but it also causes serious damage to the ecological environment. Coal production capacity far exceeds the scale of scientific production capacity, causing groundwater pollution and ecological damage, and fossil energy utilization brings acid rain, dust, smoke and other pollution, as well as haze problems. Especially since 2012, a large area of national heavy haze has repeatedly appeared, which has seriously threatened the health of the public.