Sulfur Hexafluoride (SF₆) Gas Recovery Service

The Third Session of the Conference of the Parties to the United Nations Framework Convention on Climate Change (COP3) was held in Kyoto in December 1997 for the adoption of the Kyoto Protocol, which set legally binding targets on the reduction of emissions for six greenhouse gases, including sulfur hexafluoride (SF₆) gas. With high insulation performance, it is used in many electric devices. Now a measure for preventing the gas from being released into the atmosphere is required in inspections or withdrawals of equipment using SF₆ gas.
We offer the service for recovering unwanted SF₆ gas at the time of removing gas insulated equipment to aid business operators in cutting SF₆ gas emissions to the atmosphere.

Process Flow of SF₆Gas Recovery Service

Features

• The service achieves a high recovery rate. Involving recycling, it also considers the environment.

  Removal ofgas insulated equipment	Maintenance ofgas insulated equipment
  Recovering 99 percent or more (0.005 MPa・abs or less) *	Recovering 97 percent or more (0.015 MPa・abs or less) *

  *

  Source: Electric Technology Research Association: Electrical Cooperative Research, Vol. 54, No. 3

• We offer a service for moving recovered SF₆ gas to a gas manufacturer to refine and recycle it after gas analysis and removal of impurities.

Application Areas

We recover and treat gas from SF₆ gas insulated equipment and other equipment.

• SF₆ gas recovery units
• SF₆ gas circuit breakers
• SF₆ gas insulated switchgears
• Ion accelerators and electron microscopes

FAQs

Q1. Do you destroy the gas?

A1. We destroy the gas if its purity is low, at 85 percent or less.