EFFECT OF TREATING MALODOROUS GASES BY NON-THERMAL PLASMA COUPLING CATALYST

Abstract

Abstract: To improve the limitation of non-thermal plasma (NTP) technology andbroaden its application in the treatment of odorous gas, Cu doped catalyst was combined with NTP technology. The H₂S degradation efficiency, influence of coupling methods, internal structure and external structure were researched comprehensively. In addition, the role of catalyst and synergetic mechanism were approached. The results showed that the contact points between the catalyst particles and the reactor wall enhanced the discharge process,while the output of high-energy electrons was lower in external structure system.Compared with the single NTP system, the built-in coupling system could cut off the H₂S and make itcontact with the active substance sufficiently, which improved the discharge efficiency, and the output efficiency could reach 64.79% at 35 V.

Key words: non-thermal plasma, porous catalyst, Cu²⁺ doped, internal structure, external structure, hydrogen sulfide, elemental sulfur

References

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