Plasma catalytic removal of VOCs using cycled storage‐discharge (CSD) mode: Tandem effect of zeolite adsorbents and Au catalysts on complete oxidation of toluene
Plasma catalytic removal of VOCs using cycled storage‐discharge (CSD) mode: Tandem effect of zeolite adsorbents and Au catalysts on complete oxidation of toluene
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DOI：
10.1002/ppap.202200236
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发表时间：
2023-02
影响因子：
3.5
通讯作者：
Amin Zhou;Jing‐Lin Liu;Bin Zhu;L. Di;Xiao‐Song Li;Aimin Zhu
中科院分区：
文献类型：
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作者：
Amin Zhou;Jing‐Lin Liu;Bin Zhu;L. Di;Xiao‐Song Li;Aimin Zhu
高硅沸石吸附剂（ZAs）用于等离子体催化去除甲苯的循环储存-放电模式。在空气等离子体（20% O2in N2）放电阶段，放电时间为5 min时，甲苯转化率达到100%，CO选择性为22%，co2选择性为26%。放电20 min后，空气等离子体对CO和co2的选择性分别为~30%和~60%。为了将甲苯完全氧化为CO2， ZA和Au催化剂组合在一起，实现了等离子体内ZA和等离子体后Au催化剂的串联效应，在100%甲苯转化率下具有近100%的CO2选择性。研究了串联效应对Au负载和ZA - Au催化剂空速比的影响。
High‐silica zeolite adsorbents (ZAs) are employed for plasma catalytic removal of toluene with cycled storage‐discharge mode in this work. At 5 min discharge time of the discharge stage in air plasma (20% O2in N2), toluene conversion attains 100%, obtaining 22% CO and 26% CO2selectivities. After 20 min discharge time, the air plasma gives the selectivities to CO of ~30% and CO2of ~60%. For complete oxidation of toluene to CO2, ZA and Au catalysts are combined and a tandem effect of in‐plasma ZA and postplasma Au catalysts is achieved, featuring nearly 100% CO2selectivity at 100% toluene conversion. Dependences of the tandem effect on Au loading and space velocity ratio of ZA to Au catalyst are investigated.