期刊
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
卷 11, 期 1, 页码 166-173出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TDEI.2004.1266332
关键词
adsorption; green house effect; SF6/N-2; mixture; SF6 recovery; zeolite
We propose using zeolite filter in portable processing equipment to separate and recover SF6 from SF6/N-2 mixtures. Testing of a prototype filter has shown that SF6 is completely adsorbed by the filter, and the exhaust gas from the filter is pure N-2 (i.e., at an undetectable level of SF6 measured by a gas chromatograph). The SF6 fraction of the sorbate phase (solid phase) has been evaluated from the tests, and it is a high fraction as expected. For example, 70% sorbate corresponding to processing a mixture of 5% SF6, and 83% sorbate corresponding to processing a mixture containing 10% SF6. The process of releasing the SE, from the filter and renewing the filter by thermal swing adsorption (TSA) technique has also been investigated to determine a commercial operating temperature of 150degreesC. The feasibility of applying this new concept in a portable SF6/N-2 mixture processing equipment is discussed and compared with an alternative system that the authors developed previously which was based on pressure swing adsorption (PSA) technique and also using zeolite.
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