ABSTRACT
Sulfur hexafluoride (SF6) gas has been widely used in high and medium voltage electrical equipment due to its excellent insulation and arc extinguishing properties. According to statistics, the global annual output of sulfur hexafluoride (sulfur hexafluoride) gas is about 20,000 tons, and about 80% is used in the power industry. With the large-scale construction and commissioning of AC/DC UHV projects, the consumption of sulfur hexafluoride gas is increasing. However, the greenhouse effect of sulfur hexafluoride gas is more than 23,900 times that of CO2. It can exist in the air for more than 3,200 years. It is one of the six gases prohibited by the Kyoto Protocol. The controlling and reduction of greenhouse gas emission is an important way to deal with climate change and slow down global warming. This paper constructs an evaluation system for the recovery and reuse of sulfur hexafluoride business model, and evaluates and analyzes the main application scenarios currently available.
