System for collecting and refining SF.sub.6 gas and method there

Details System for collecting and refining SF.sub.6 gas and method there System for collecting and refining SF.sub.6 gas and method there

1998-06-16

1999-12-21

Spitzer, Robert

Gas separation: processes

Chromatography

95119, 95131, 95136, 95138, 95139, 95140, 96101, 96122, 96128, B01D 5304, B01D 1508

Patent

active

060043776

ABSTRACT:
SF.sub.6 gas is collected from the inside of a gas insulated machine during maintenance and inspection and is refined. Compositions of the refined SF.sub.6 gas are analyzed and confirmed to be reusable at the site. In the process of SF.sub.6 gas collecting and refining, acidic gases are neutralized and removed by a dry method using filters and the refined SF.sub.6 gas is collected in a collecting tank. In particular, after the refining, the composition of the collected SF.sub.6 gas is measured and confirmed by analysis equipment to quantitatively confirm whether or not the refined SF.sub.6 gas is reusable.

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