Recycling and Reuse of Sulfur Hexafluoride in Guangdong Power Grid Corporation

DOI

10.2991/iccahe-16.2016.7How to use a DOI?

Keywords

SF6, recycling and reuse, "SF6 Purified in Multi-channel (SFPM)" technology

Abstract

As an excellent insulating medium, sulfur hexafluoride (SF6) is widely used in electrical equipment, despite its high global warming potential. Besides, a series of hazardous decomposition products can be formed after long-term use of SF6, so it is very important for power companies to recycle SF6 in electrical equipment that is in overhaul or to be retired. To solve this problem, a "SF6 Purified in Multi-channel (SFPM)" technology was developed, which comprises washing, adsorption, distillation, curing and exhaust gas circulation processes. The specific purification processes by which disused SF6 is purified can be customized according to its quality and the quality of SF6 after treatment meets the standards of "Industrial Sulfur Hexafluoride" (GB/T 12022-2006) and IEC 60480-2004, with zero emission of SF6 achieved during the whole process. Equipment for SF6 purification was developed and a base for SF6 recycling and reuse was established in 2010. During the past six years of operation and promotion, 93.630 t of SF6 was recycled and a total of 90.887 t of treated SF6 was reused in electrical equipment at Guangdong Power Grid Corporation.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Min Chen
PY  - 2016/10
DA  - 2016/10
TI  - Recycling and Reuse of Sulfur Hexafluoride in Guangdong Power Grid Corporation
BT  - Proceedings of the 2016 5th International Conference on Civil, Architectural and Hydraulic Engineering (ICCAHE 2016)
PB  - Atlantis Press
SP  - 35
EP  - 42
SN  - 2352-5401
UR  - https://doi.org/10.2991/iccahe-16.2016.7
DO  - 10.2991/iccahe-16.2016.7
ID  - Chen2016/10
ER  -