NOVELTY - A carbonization process taking carbon dioxide (CO2) as temperature-control component comprises providing gas making part comprising carbonization furnace and carbonization chamber heat-carrying component internal circulating system. The carbonization furnace comprises burning chamber of fuel gas and carbonizing chamber of coal. The carbonizing chamber is divided into first section coal pre-heating section (or gas cooling section); second section coal carbonizing section and third section carbon cooling section (or gas pre-heating section) according to forward line of the coal.    USE - Carbonization process taking carbon dioxide as temperature-control component for combustion (claimed).    ADVANTAGE - The method changes conventional carbonization process of crude product into chemical-industrial process of producing fine product. It provides chemical-industrial technical line to coal; and is convenient for improving the existing items.    DETAILED DESCRIPTION - Carbonization process taking carbon dioxide (CO2) as temperature-control component comprises providing gas making part comprising carbonization furnace and carbonization chamber heat-carrying component internal circulating system. The carbonization furnace comprises burning chamber of fuel gas and carbonizing chamber of coal. The carbonizing chamber is divided into first section coal pre-heating section (or gas cooling section); second section coal carbonizing section and third section carbon cooling section (or gas pre-heating section) according to forward line of the coal. In the third section, the heat of first path of gas of carbonizing chamber heat-carrying component is exchanged with heat of the process material of second section to recover the heat. The gas is heated to form third-section process gas, where third-section process material is departed from three sections. In the second section, the gas of burning chamber and third-section process gas are directly in contact with one section of process material to carry out carbonization action. The two-section process material is departed from the second section to enter to the third section. The two-section process gas is departed from second section to enter to first section. In the first section, the two-section process gas is in contact with the coal added from outside to transfer heat and cool and then mix with first-section generated to form first-section product gas (raw coal gas). The coal is heated to form first-section process material to enter to second section. At least one part of material flow based on raw coal gas is returned to carbonizing chamber to act as heat-carrying part of carbonizing chamber to form internal circulation of heat-carrying part of carbonizing chamber of gas making part. The gas product of gas making part is acted as off-loop gas that departs from gas making part. The oxygen supply body of burning chamber is oxygen-rich body or pure oxygen that takes CO2 as main temperature-control component of burning chamber. The temperature-control component of burning chamber comprises non-burnable component from outside of carbonizing chamber which coexist with fuel component in burning chamber. The temperature-control component is capable of controlling temperature of fuel gas, not participant with burning reaction, passing through burning chamber and passing through carbonizing chamber to contact with fuel and entering to raw coal gas when departing from carbonization furnace.