According to the agricultural biomass energy industry development planning for 2007 to 2015 of China’s Agriculture Ministry, 1000 straw gasification gas supply stations, with an annual capacity of 365 million cubic meters of gas from straw had been built by 2010, to solve the basic energy demands and changing the way China’s countryside is used; 2000 straw gasification gas supply stations will be built by 2015, with an annual capacity of 730 million cubic meters of gas from straw.

In China, the institute of energy in Shandong province is the representative, whose rural straw gas centralized supply system gained major popularization and application. About 300 gas supply projects were built and a total investment of one hundred million Yuan was carried out. China has dozens of companies engaged in producing and marketing of rural straw gas centralized supply devices. Various types of straw were supplied as the main raw material in the straw gasification technology. Thermal energy was supplied for cooking gas or drying food by central supply gas system. Farmers, especially the richest in well-off localities, eager to use clean energy, have changed the healthy and clean appearance of their villages. Because of straw gasification, farmers burn gas instead of wood, which met the demand of the farmers to improve the quality of life, and gained farmers’ welcome and love.

There exist some problems in the straw gasification application for gas supply process. First of all, the gas centralized supply system of rural straw applied in China is the production of low calorific value biomass fuel gas with air medium. The flammable gas ingredient is CO, whose content is more than the regulations of the state civil gas standards. Farmer’s culture, science and technology quality is low, especially in China, they have a big hidden danger of security with cooking gas. Secondly, the waste gas, produced by burning low value gas, would pollute the environment. In addition, the biggest problem of the Chinese straw gasification units in operation is the removal and processing of the tar. Therefore, the pipeline is easily blocked during the process because of tar precipitation, which is too little to recycle and be reused. If it is not removed, the environment will be polluted. Tar cracking is an effective method to solve the problem of pollution by tar, as showed in China’s new energy nets. The problem of waste water containing tar could be solved if the quantity of tar is decreased greatly. It is hard to make the tar become cracked completely with the present technology, and water washing is needed to some degree. So wastewater treatment and recycling is necessary.