Development conditions and background of coal chemical industry

4. There is a certain environmental capacity

China is rich in coal resources, but generally speaking, coal contains high sulfur, and the development and utilization of environmental protection requirements are high. In 2003, China's SO2 emission and CO2 emission accounted for the first and second place respectively in the world, of which 90% of SO2 emission came from the use of coal.

The discharge of coal chemical enterprises is inevitable, even if the discharge standard is reached after treatment, there are always three wastes to be discharged. This is an unavoidable problem. The sulfur content of coal in southern China is high, and the environmental capacity of many places has been saturated or exceeded, especially in mountainous areas, exhaust gas diffusion is difficult, and acid rain is serious in many places, and there is no margin for further development of coal chemical industry, and the project is difficult to pass the approval of environmental protection departments.

Coal chemical alternative fuel products can be divided into three categories: oxygenated fuel (alcohol/ether/ester), synthetic oil (coal to oil), gas fuel (methane gas/syngas/hydrogen). Among them, oxygen-containing fuel technology is mature, which should be popularized and applied in the near future. Synthetic oil is fully compatible with existing vehicle technology systems and infrastructure, but its technology has yet to be perfected and will play an important role in 2020. Gas-fueled vehicles have many advantages, and our country will break through one by one from basic scientific research, frontier technological innovation, and engineering application development.