Processing of hydrocarbons in an AC discharge nonthermal plasma reactor: An approach to generate reducing agents for on-board automotive exhaust gas cleaning

Xing, Yu; Liu, Zhenxin; Couttenye, Richard A.; Willis, William S.; Suib, Steven L.; Fanson, Paul T.; Hirata, Hirohito; Ibe, Masaya

doi:10.1016/j.jcat.2007.10.024

Cited by 22 publications

(7 citation statements)

References 11 publications

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“…Energy efficiency (ratio of the total volumetric flow rate of produced gas to the corresponding input power) is well-known in plasma chemistry research. This parameter follows the reactor performance and was selected in several studies as a criterion to find process optimum conditions. ,,− ,− Figure shows the energy efficiency vs catalyst type. As mentioned, the glass packing, with a higher dielectric constant compared to empty discharge, increases the net dielectric constant of the discharge, maybe cause a decrease in discharge efficiency.…”

Section: Resultsmentioning

confidence: 99%

“…They employed three types of catalyst (Ni–W, Ni–Mn, and Rh–Ce) and illustrated that Rh–Ce catalyst is the best one in viewpoint of hydrogen production . Catalytic cracking of hexane and octane have been carried out in a catalytic plasma reactor by Xing et al , They used iron and nickel as the catalyst, and it has been found that nickel is better for lighter hydrocarbons production.…”

Section: Introductionmentioning

confidence: 99%

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Hexadecane Cracking in a Hybrid Catalytic Pulsed Dielectric Barrier Discharge Plasma Reactor

Hooshmand

Rahimpour

Jahanmiri

et al. 2013

Ind. Eng. Chem. Res.

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In the present work, cracking of a model heavy hydrocarbon (hexadecane) in a nanosecond pulsed catalytic dielectric barrier discharge (DBD) plasma reactor has been investigated. The effect of different commercial catalyst materials based on alumina, titania, and silica has been considered on the reactor performance and products distribution. The reactor performance increases significantly when the discharge zone is packed with catalyst granules. Energy efficiency and hydrogen concentration in the produced gas vary between 36.98 and 194.44 lit/kWh and 17.7% and 63.7%, respectively. The highest energy efficiency was achieved when the plasma was packed with Mo–Ni/Al2O3 catalyst for 52.3 W power input. In this condition, the production rate and concentration of hydrogen have been 108.03 mL/min and 63.7%, respectively. The breakdown voltage is decreased significantly when the reactor is packed with TiO2 based catalyst.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hexadecane Cracking in a Hybrid Catalytic Pulsed Dielectric Barrier Discharge Plasma Reactor

Hooshmand

Rahimpour

Jahanmiri

et al. 2013

Ind. Eng. Chem. Res.

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“…In order to optimize the design of a DBD reactor, it is necessary to investigate the power of the reactor consumed in the discharge over a wide range of discharge conditions. In other reports [25e27, 32,33,35,38] voltageecurrent characteristics have been investigated in different types of DBD reactors. In the present work, the outer electrode of reactor was grounded through a current measurement resistor of 5 U to display the waveform of the discharge current on the oscilloscope.…”

Section: Voltage and Current Waveformmentioning

confidence: 99%

“…Xing et al [19,20] have suggested the possible use of combined plasma-catalytic approach for hydrocarbon cracking. They performed experiments with n-hexane in a DBD catalyst integrated system at a power supply of 10.64 kV and have concluded that CeC bond cracking is the dominant reaction in the gas phase plasma zone.…”

Section: Introductionmentioning

confidence: 99%

Dielectric barrier discharge plasma torch treatment of pyrolysis fuel oil in presence of methane and ethane

Gharibi¹,

Khosravi

Khani

et al. 2015

Journal of Electrostatics

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“…cylindrical pulsed corona [6,7], packed pellet cylindrical configuration [8], dielectric discharge with flat electrodes [9]). All these configurations show a good removal of NO x and PM; the packed cylindrical configuration has a relative better efficiency certainly due to a major plasma-polluted gas interaction, however in this type of reactors the exhaust gas pressure diminishes when the gas collides with a barrier (pellets), this fact implies an augment in consumption of gasoline in vehicles.…”

Section: Introductionmentioning

confidence: 99%

Removal of main exhaust gases of vehicles by a double dielectric barrier discharge

Pacheco¹,

Alva²,

Valdivia³

et al. 2012

J. Phys.: Conf. Ser.

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Removal of main exhaust gases of vehicles by a double dielectric barrier discharge Abstract. Because the health effects and their contribution to climate change, the emissions of toxic gases are becoming more controlled. In order to improve the diminution of toxic gases to the atmosphere, several techniques have been developed; here it will be focus only to automotive emissions. This work deals about the treatment of toxic gases emitted from vehicles by a non-thermal plasma. Several tests were done in a 4-cylinder 2002/Z16SE motor to characterize the vehicle emissions. With these results gas mixture simulating the exhaust gases vehicles, was used in experiments at different conditions employing a double dielectric barrier reactor for their treatment. The removal efficiencies superior to 90% show the competence of the non-thermal plasma reactor to treat these gases. Experimental results are explained with the aid of a simple chemical model that suggests a possible mechanism of degradation of toxic gases. The plasma reactor employed could works at 12V supplied without difficulty by a vehicle battery.

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Processing of hydrocarbons in an AC discharge nonthermal plasma reactor: An approach to generate reducing agents for on-board automotive exhaust gas cleaning

Cited by 22 publications

References 11 publications

Hexadecane Cracking in a Hybrid Catalytic Pulsed Dielectric Barrier Discharge Plasma Reactor

Hexadecane Cracking in a Hybrid Catalytic Pulsed Dielectric Barrier Discharge Plasma Reactor

Dielectric barrier discharge plasma torch treatment of pyrolysis fuel oil in presence of methane and ethane

Removal of main exhaust gases of vehicles by a double dielectric barrier discharge

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