The two-stage Pyrolysis cold gasification is composed of a pyrolysis coal gasifier, a gas washing tower, and an electrostatic tar collector. This process has the advantages of high thermal efficiency, high gas calorific value, high tar productivity, simple operation, stable operation, and high automation performance. Moreover, the adaptability of coal types is wide, and various types of coal such as lignite coal, bituminous coal, and anthracite can be gasified. Although it is cold gas, 100% of the gas has undergone electrostatic purification, resulting in high gas cleanliness. The combustion temperature is automatically controlled and tar recovery is achieved, which has multiple advantages such as safety and low investment.

  In addition to the above characteristics, this process can also use a compressor to pressurize the gas and then transport it over a long distance, without blocking the pipeline. Its application range is extremely wide.