Provided is a method for producing tetrafluoromethane through plasma pyrolysis of waste polytetrafluoroethylene (PTFE), relating to the technical field of waste recycling. The method of the disclosure includes: subjecting the waste PTFE to a plasma pyrolysis reaction to obtain a pyrolysis product, and subjecting the pyrolysis product to quenching and gas-solid separation in sequence to obtain a pyrolysis gas including the tetrafluoromethane, wherein the plasma pyrolysis reaction is performed at a temperature of 1,800 K to 5,000 K. The method provided by the disclosure has advantages such as a high conversion rate, a short reaction time, a large treatment capacity, high reaction safety, easy product purification, and suitable for continuous industrial scale-up, and can realize the recycling of waste PTFE with a low energy consumption and a low cost. In addition, the method of the disclosure avoids the fluorine waste caused by incineration and leads to a high value-added tetrafluoromethane product.

Provided is a method for producing tetrafluoromethane through plasma pyrolysis of waste polytetrafluoroethylene (PTFE). The method includes: subjecting the waste PTFE to a plasma pyrolysis reaction to obtain a pyrolysis product, and subjecting the pyrolysis product to quenching and gas-solid separation in sequence to obtain a pyrolysis gas including the tetrafluoromethane, wherein the plasma pyrolysis reaction is performed at a temperature of 1,800 K to 5,000 K.

Provided is a method for producing tetrafluoromethane through plasma pyrolysis of waste polytetrafluoroethylene (PTFE). The method includes: subjecting the waste PTFE to a plasma pyrolysis reaction to obtain a pyrolysis product, and subjecting the pyrolysis product to quenching and gas-solid separation in sequence to obtain a pyrolysis gas including the tetrafluoromethane, wherein the plasma pyrolysis reaction is performed at a temperature of 1,800 K to 5,000 K.