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|Title:||NO Abatement using Microwave Micro Plasma Generated with Granular Activated Carbon|
Di Natale, F
|Keywords:||Non-Thermal plasma;NOx abatement;Micro-plasma;Microwave cavity;Granular activated carbon|
|Citation:||IEEE Transactions on Industry Applications, (2017)|
|Abstract:||The micro-plasma is generated using granular activated carbon (GAC) particles of size (2-3mm) in loosely fluidized bed in a microwave cavity operated at 2.45GHz. A single mode microwave cavity reactor (SMMCR) was constructed and microwave was injected through another slotted single mode waveguide in a sandwiched manner. COMSOL Multiphysics software was used to investigate the microwave electric field and the power density within the SMMCR. Gas mixture of air and 500 ppm NO (in N2) at the flow rate of 2 l/min was passed through a quartz tube centered within the SMMCR while the supplied microwave power was very low 10-80 W and corresponding NO reduction was greater than 98%. The mass of GAC used for generating the plasma was 5g. The efficiency of NO reduction is found to be 24.84 g(NO2)/kWh. When air is mixed with NO (in N2), the efficiency of NOx reduction achieved vary greatly with respect to the supplied microwave energy and behavior has become complex and is not predictable, which needs further investigation. A gas analyzer (testo 350) was used to measure the gas (NO, NO2, CO and O2) concentration and temperature.|
|Appears in Collections:||Dept of Electronic and Computer Engineering Research Papers|
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