A gliding discharge reactor supplied by a ferro-resonance system for liquid toluene decomposition

Młotek, Michał; Reda, Ewelina; Reszke, Edward; Ulejczyk, Bogdan; Krawczyk, Krzysztof

doi:10.1016/j.cherd.2016.05.014

Cited by 6 publications

(4 citation statements)

References 28 publications

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“…The 15 mm catalyst bed was located above the end of the electrodes. The applied power supply consisted of ferroresonant transformers with a transistor inverter, which allows for the design of polyphase multielectrode reactor systems (manufactured by Ertec-Poland) . The electric power supplied to the gliding reactor was in the range of 1–2 kW and it was measured by an energy meter, Schrack MGDIZ065.…”

Section: Methodsmentioning

confidence: 99%

“…The applied power supply consisted of ferroresonant transformers with a transistor inverter, which allows for the design of polyphase multielectrode reactor systems (manufactured by Ertec-Poland). 21 The electric power supplied to the gliding reactor was in the range of 1−2 kW and it was measured by an energy meter, Schrack MGDIZ065. The temperature of the outlet gas, which was measured by a K-type thermocouple at the vessel axis 10 mm over the upper ends of the electrodes, reached 175−410 °C.…”

Section: Methodsmentioning

confidence: 99%

“…A homogeneous nonthermal plasma and a plasma-catalytic system have been widely used for many environmental technologies. − The plasma conversion of toluene is investigated by many research groups all over the world. − In the coupled plasma-catalytic system, high conversion of toluene and other volatile organic compounds (VOCs) was obtained and the activity of the catalyst was stable. , This may suggest that the use of active catalysts operating in the plasma of gliding discharge can be successfully implemented to obtain higher conversions of tars. Based on the previous experiments conducted in the plasma-catalytic system with nickel as a catalyst, it can be concluded that nickel on the catalyst surface influenced the tar decomposition process. , The purpose of this work was to investigate the effects of the power of discharge, initial concentration of toluene, and the presence of G-0117 catalyst on the conversion of C 7 H 8 and the composition of outlet gas, as well as its calorific value.…”

Section: Introductionmentioning

confidence: 99%

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Decomposition of Toluene in Coupled Plasma-Catalytic System

Młotek

Ulejczyk

Woroszył

et al. 2020

Ind. Eng. Chem. Res.

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The study of toluene conversion, in a gas such as the one obtained during the pyrolysis of biomass, was conducted at atmospheric pressure in homogeneous and in coupled plasma-catalytic systems. The effects of discharge power, initial concentration of toluene, and the presence of the bed of NiO/Al2O3 - G-0117 (industrial catalyst for methane water shift) on the conversion of C7H8, the composition of the outlet gas, and its calorific value have been investigated. The gas flow rate was 1000 Nl/h and the initial gas composition was CO (0.13), CO2 (0.12), H2 (0.25), and N2 (0.5). The initial toluene concentration was in the range of 2000–4000 ppm. The obtained results show that the conversion of toluene increases with discharge power and the highest one was obtained in the coupled plasma-catalytic system. It was higher than that in the homogeneous system of gliding discharge plasma. The composition of gas changed within the range of a few percent. In the outlet gas acetylene, ethylene and ethane were observed. Trace amounts of toluene were reduced to benzene and formed C3 and C4 hydrocarbons. In an extended process, the reduction of NiO to metallic nickel, methanation reaction of carbon oxides, and an increase of the conversion of toluene were observed. The conversion of toluene in the extended process was 92%. The catalytic activity of G-0117 in a coupled system increased during the study conducted for about 40 min. The use of G-0117 catalyst led to an increase in the calorific value of the outlet gas. In every examined system, it was above the minimal level demanded by engines and turbines. After the process, carbon deposits were present.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Decomposition of Toluene in Coupled Plasma-Catalytic System

Młotek

Ulejczyk

Woroszył

et al. 2020

Ind. Eng. Chem. Res.

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“…The power supply consisted of ferroresonant transformers and a transistor inverter, which allowed us to obtain a poly–phase multi-electrode reactor system. The electric power source was made by Ertec-Poland 28 . Electric power of a gliding discharge reactor was in the range of 1–2 kW.…”

Section: Methodsmentioning

confidence: 99%

Coupled Plasma-Catalytic System with Rang 19pr Catalyst for Conversion of Tar

Młotek

Woroszył

Ulejczyk

et al. 2019

Sci Rep

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A coupled plasma-catalytic system (CPCS) for the conversion of toluene was investigated and compared to the homogeneous system of gliding discharge plasma. Toluene was used as a model compound, which is present in tars. The study was carried out at atmospheric pressure, in a gas composition similar to the one obtained during pyrolysis of biomass. The effect of the initial toluene concentration, energy supplied to gliding discharge (GD) and the presence of a catalyst on the conversion of toluene was studied. Both the composition of outlet gas and its calorific value were monitored. Based on the obtained results it can be concluded that the conversion of toluene increases with the increase of gliding discharge power. The highest toluene conversion (89%) was received in the coupled plasma-catalytic system (catalyst: RANG-19PR) under the following conditions: CO (0.13 mol. fr.), CO2 (0.12 mol. fr.), H2 (0.25 mol. fr.), N2 (0.50 mol. fr.) and 4400 ppm of toluene with a gas flow rate of 1000 Nl/h. The composition of the outlet gas in the homogeneous system and in the CPCS changed in the range of a few percents. Toluene levels were reduced tenfold. Benzene, C3 and C4 hydrocarbons, as well as acetylene, ethylene and ethane, were detected in the outlet stream in trace amounts. Carbon deposits were present in the reactor. The products of methanation of carbon oxides were detected in the both studied systems. A mechanism of toluene decomposition in the CPCS was proposed. The application of the catalyst brought about an increase in the calorific value of the outlet gas. It was above the minimal level demanded by engines and turbines.

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Volatile organic compounds degradation by nonthermal plasma: a review

Shen

Alharbi

et al. 2023

Environ Sci Pollut Res

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A gliding discharge reactor supplied by a ferro-resonance system for liquid toluene decomposition

Cited by 6 publications

References 28 publications

Decomposition of Toluene in Coupled Plasma-Catalytic System

Decomposition of Toluene in Coupled Plasma-Catalytic System

Coupled Plasma-Catalytic System with Rang 19pr Catalyst for Conversion of Tar

Volatile organic compounds degradation by nonthermal plasma: a review

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