Thermal plasma treatment method for sulfur hexafluoride degradation

A thermal plasma treatment method for sulfur hexafluoride (SF6) degradation, comprising the following steps:

• inputting Ar into a reaction cavity in a thermal plasma generator as a carrier gas, wherein the reaction cavity receives the carrier gas Ar through a swirler, and annular electrodes are electrically connected to a direct current power supply to generate an arc plasma region in the presence of the carrier gas Ar;
• and
• inputting to-be-reacted SF6 and to-be-reacted reaction gas in a predetermined ratio into the arc plasma region to generate hydrogen/oxygen radicals and fluorine radicals, and bonding the hydrogen/oxygen radicals and the fluorine radicals with each other to generate final products, wherein the final products mainly comprise acidic gas which can be absorbed by alkali liquid and is subjected to harmless treatment.