Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 369, Issue -, Pages 430-438Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2019.01.098
Keywords
Adsorbed toluene; Non-thermal plasma; Mineralization; Hybrid materials; Kinetics
Categories
Funding
- China Postdoctoral Science Foundation [2017M613289XB]
- Key Project of Shaanxi Provincial Science and Technology Innovation [2016TZC-S-19-2]
- Integration and Application Demonstration of Air Pollution Interconnection Control Technology [2017YFC0212204]
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Non-thermal plasma mineralization of the adsorbed toluene over gamma-Al2O3 hybrid with 13X, ZSM-5, and HY was investigated in a sequential adsorption and plasma oxidation system. The gamma-Al2O3-13X was shown to have a better plasma oxidation performance with fewer by-products as compared to gamma-Al2O3-ZSM-S and gamma-Al2O3-HY, which was due to its better discharge performance and 03 decomposition ability. For all of the tested materials, the plasma mineralization of the adsorbed toluene process had a good match with the pseudo-second-order kinetic model: kt = 1/n - 1/n(o), where n(0) and n are the amount of adsorbed toluene (mmol) at discharge time = 0 and t, respectively. The overall reaction constant (k) was shown to be affected by the packing materials. The reason for the kinetic model following the pseudo-second-order in the sequential process was analyzed based on the chemical reaction and mineralization mechanism.
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