Abstract: The production of basic chemical materials including calcium carbide and acetylene is an important approach to realizing the value-added conversion of low-rank coal. However,current production technologies usually suffer from many problems including severe pollution,large energy consumption and high cost. This project is intended to reveal the basic science in the processes of mass transfer and chemical conversion under the extreme conditions in an electric field-coupling reaction system,and give deep understanding of the principles of process control,scaling-up and energy recovery. Then,many key technologies in the production are expected to be greatly improved,including the technology of industrializing the rotating arc plasma torch,the power supply with large current for hydrogen plasma and the arc starting at low voltage,the design of long-life electrode and the ablative compensation technology,the low-cost molding of powdery raw materials and the high-temperature transportation of materials. Based on these achievements,a highly efficient,energy-saving and low-cost process for the production of calcium carbide and acetylene from low-rank coal will be developed,and a 5000t/a demonstration plant of producing acetylene from coal by plasma pyrolysis and a 800000t/a industrial plant of the regenerative production of calcium carbide will be established.