scholarly journals Tar Removal by Nanosecond Pulsed Dielectric Barrier Discharge

2020 ◽  
Vol 10 (3) ◽  
pp. 991 ◽  
Author(s):  
Mirosław Dors ◽  
Daria Kurzyńska
Keyword(s):  
High Voltage ◽  
Barrier Discharge ◽  
Reaction Pathway ◽  
Plasma Reactor ◽  
Catalytic Reforming ◽  
Dielectric Barrier ◽  
Tar Removal ◽  
Plasma Reaction ◽  
Biomass Tar ◽  
By Products

Plasma-catalytic reforming of simulated biomass tar composed of naphthalene, toluene, and benzene was carried out in a coaxial plasma reactor supplied with nanosecond high-voltage pulses. The effect of Rh-LaCoO3/Al2O3 and Ni/Al2O3 catalysts covering high-voltage electrode on the tar conversion efficiency was evaluated. Compared to the plasma reaction without a catalyst, the combination of plasma with the catalyst significantly enhanced the conversion of all three tar components, achieving complete conversion when an Rh-based catalyst was used. Apart from gaseous and liquid samples, char samples taken at five locations inside the reactor were also analyzed for their chemical composition. Char was not formed when the Rh-based catalyst was used. Different by-products were detected for the plasma reactor without a catalyst, with the Ni- and Rh-based catalysts. A possible reaction pathway in the plasma-catalytic process for naphthalene, as the most complex compound, was proposed through the combined analysis of liquid and solid products.

scholarly journals Abatement of Toluene by Reverse-Flow Nonthermal Plasma Reactor Coupled with Catalyst

Catalysts ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 511 ◽  
Author(s):  
Wenjun Liang ◽  
Huipin Sun ◽  
Xiujuan Shi ◽  
Yuxue Zhu
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Reverse Flow ◽  
Plasma Reactor ◽  
Nonthermal Plasma ◽  
Toluene Degradation ◽  
Dielectric Barrier ◽  
Reactor Temperature ◽  
Dbd Reactor ◽  
By Products

In order to make full use of the heat in nonthermal plasma systems and decrease the generation of by-products, a reverse-flow nonthermal plasma reactor coupled with catalyst was used for the abatement of toluene. In this study, the toluene degradation performance of different reactors was compared under the same conditions. The mechanism of toluene abatement by nonthermal plasma coupled with catalyst was explored, combined with the generation of ozone (O3), NO2, and organic by-products during the reaction process. It was found that a long reverse cycle time of the reactor and a short residence time of toluene decreased the internal reactor temperature, which was not beneficial for the degradation of toluene. Compared with the dielectric barrier discharge (DBD) reactor, toluene degradation efficiency in the double dielectric barrier discharge (DDBD) reactor was improved at the same discharge energy level, but the concentrations of NO2 and O3 in the effluent were relatively high; this was improved after the introduction of a catalyst. In the reverse-flow nonthermal plasma reactor coupled with catalyst, the CO2 selectivity was the highest, while the selectivity and amount of NO2 was the lowest and aromatics, acids, and ketones were the main gaseous organic by-products in the effluent. The reverse-flow DBD-catalyst reactor was successful in decreasing organic by-products, while the types of organic by-products in the DDBD reactor were much more than those in the DBD reactor.

scholarly journals Effect of methane on the conversion of HFC-134a in a dielectric barrier discharge non-equilibrium plasma reactor

2016 ◽  
Vol 284 ◽  
pp. 412-421 ◽  
Author(s):  
Sazal K. Kundu ◽  
Eric M. Kennedy ◽  
John C. Mackie ◽  
Clovia I. Holdsworth ◽  
Thomas S. Molloy ◽  
...  
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Plasma Reactor ◽  
Dielectric Barrier ◽  
Equilibrium Plasma ◽  
Hfc 134A ◽  
Non Equilibrium

Upgrading of Anisole in a Catalytic Pulsed Dielectric Barrier Discharge Plasma Reactor

2013 ◽  
Vol 27 (12) ◽  
pp. 7424-7431 ◽  
Author(s):  
Mohammad Reza Rahimpour ◽  
Abdolhossein Jahanmiri ◽  
Parisa Rostami ◽  
Hamed Taghvaei ◽  
Bruce C. Gates
Keyword(s):  
Dielectric Barrier Discharge ◽  
Discharge Plasma ◽  
Barrier Discharge ◽  
Plasma Reactor ◽  
Dielectric Barrier Discharge Plasma ◽  
Dielectric Barrier ◽  
Barrier Discharge Plasma

Experimental Study on the Reaction of CCl3F and CH4in a Dielectric Barrier Discharge Nonequilibrium Plasma Reactor

2016 ◽  
Vol 55 (2) ◽  
pp. 463-471 ◽  
Author(s):  
Sazal K. Kundu ◽  
Eric M. Kennedy ◽  
John C. Mackie ◽  
Clovia I. Holdsworth ◽  
Thomas S. Molloy ◽  
...  
Keyword(s):  
Experimental Study ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Plasma Reactor ◽  
Nonequilibrium Plasma ◽  
Dielectric Barrier
Sign in / Sign up

Export Citation Format

Share Document