Regeneration Technology of Ex-service SF 6 Adsorbent Using Vacuum Heat Treatment

Ex-service SF 6 adsorbent is toxic, and its direct dumping may cause environmental damages. Therefore, studying the environmental-friendly processing of ex-service SF 6 adsorbent has important social values. In this study, the adsorption components of the ex-service SF 6 adsorbent were analyzed by t...

Full description

Saved in:
Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2019-06, Vol.486 (1), p.12024
Main Authors: Wen, Chunlei, Wei, Gang, Hu, Min, Yin, Hua, Yang, Jun, Li, Cuiying, Zhang, Haiyan
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Ex-service SF 6 adsorbent is toxic, and its direct dumping may cause environmental damages. Therefore, studying the environmental-friendly processing of ex-service SF 6 adsorbent has important social values. In this study, the adsorption components of the ex-service SF 6 adsorbent were analyzed by thermogravimetry. In order to study the most economical and effective regeneration method of SF 6 adsorbent, the regeneration technology of vacuum heat treatment was proposed, and the regeneration theory of vacuum heat treatment concerning adsorbent was elaborated, then followed by the experiment of vacuum heat treatment. By combining with infrared spectroscopy, the content change of harmful ingredient in adsorbent was analyzed, focused on the confirmation of vacuum heat treatment regeneration temperature, regeneration time and vacuum pressure, and the test verification on adsorption isothermal curve was performed to determine the desorption capacity of SF 6 molecular sieve adsorbent recycled. We found that vacuum heating can increase performance recovery rate by 85%–90%.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/486/1/012024