Biomass energy resources are not only seen the raw material basis that individuals live and eat, but the fundamental conditions of national economic development. Like a major energy consumer, China mainly is dependent on fossil energy like coal, oil, and gas because of its energy supply. However, the limitation of fossil energy and it is pressure around the atmosphere has led to its exploitation seriously restricting the sustainable growth and development of the economical society.

Now coal still offers an extremely dominant position in thermal production fields of vapor and warm water. Nevertheless, owned by nonrenewable energy, it may cause not just dust, oxysulfide, oxynitride, etc., but additionally massive relieve eco-friendly house gases as co2 in the usage, therefore leading to climatic change. Prior to the emergence of biomass pellet fuel, the alternative of coal are only able to be diesel oil, gas, and/or cogeneration. Gas is pretty affordable. Yet because its resource is restricted, most areas are missing inside a gas supply, thus its application in industrial and commercial fields is restricted. Diesel oil could be bought throughout China, yet its cost is high, and often in certain areas it's in short supply.