Atmospheric-pressure plasma technology

Kogelschatz, U.

doi:10.1088/0741-3335/46/12b/006

Cited by 263 publications

(165 citation statements)

References 76 publications

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“…The principal product of plasma gasification of MSW is a low to medium calorific value syngas composed of CO and H2 as shown in equation (8). This gas can be burned to produce heat and steam, or chemically scrubbed and filtered to remove impurities before conversion to various liquid fuels or industrial chemicals.…”

Section: Characteristics Of Thermal Plasma Process For the Gasificatimentioning

confidence: 99%

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Thermal Plasma Gasification of Municipal Solid Waste (MSW)

Byun¹,

Cho²,

Hwang³

et al. 2012

Gasification for Practical Applications

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Section: Characteristics Of Thermal Plasma Process For the Gasificatimentioning

confidence: 99%

“…Electrically generated thermal plasma can reach temperature of ~10,000 o C or more, whereas only an upper temperature limit of 2,000 o C can be achieved by burning fossil fuels [7]. For this reason, thermal plasma has been traditionally used in high temperature and large enthalpy processes [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Thermal Plasma Gasification of Municipal Solid Waste (MSW)

Byun¹,

Cho²,

Hwang³

et al. 2012

Gasification for Practical Applications

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“…Various types of discharges [1][2][3][4] have been widely used for the synthesis of different nanomaterials, such as thin films, 5-8 nanoparticles, 9-11 nanotubes [12][13][14] and nanocomposites. 15,16 The applications of atmospheric pressure (AP) discharges conducted at radio frequency (RF) are of high interest due to several advantages, for instance, (i) the convenience of use and the simplicity of hardware design; (ii) high concentrations of precursors in the vapor phase and, as consequence, high product yield; (iii) low thermal input to the substrate due to intrinsic low-temperature nature.…”

Section: Introductionmentioning

confidence: 99%

Spatial distribution of the electrical potential and ion concentration in the downstream area of atmospheric pressure remote plasma

et al. 2014

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This paper presents the results from an experimental study of the ion flux characteristics behind the remote plasma zone in a vertical tube reaction chamber for atmospheric pressure plasma enhanced chemical vapor deposition. Capacitively coupled radio frequency plasma was generated in pure He and gas mixtures: He–Ar, He–O2, He–TEOS. We previously used the reaction system He–TEOS for the synthesis of self-assembled structures of silicon dioxide nanoparticles. It is likely that the electrical parameters of the area, where nanoparticles have been transported from the synthesis zone to the substrate, play a significant role in the self-organization processes both in the vapor phase and on the substrate surface. The results from the spatial distribution of the electrical potential and ion concentration in the discharge downstream area measured by means of the external probe of original design and the special data processing method are demonstrated in this work. Positive and negatives ions with maximum concentrations of 106–107 cm−3 have been found at 10–80 mm distance behind the plasma zone. On the basis of the revealed distributions for different gas mixtures, the physical model of the observed phenomena is proposed. The model illustrates the capability of the virtual ion emitter formation behind the discharge gap and the presence of an extremum of the electrical potential at the distance of approximately 10−2–10−1 mm from the grounded electrode.

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“…The ratio of relative permittivity and thickness ( ε r / d ) determines the amount of the charge transferred in the gas discharge and has significant impact on electron number density and the density of reactive species [9]. The electronic equivalent circuit of DBD system with single dielectric barrier between the conducting electrodes is shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

OPTICAL CHARACTERIZATION OF 50 Hz ATMOSPHERIC PRESSURE SINGLE DIELECTRIC BARRIER DISCHARGE PLASMA

Naz¹,

Ghaffar²,

Rehman³

et al. 2012

PIER M

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Abstract-A low frequency (50 Hz) dielectric barrier discharge (DBD) system with a single dielectric cover on copper coil anode is designed to generate and sustain the micro-discharge plasma which is very practical for material processing applications. The DBD system is powered by a high tension ac source consisting of a conventional step up transformer and variac. The dielectric barriers (quartz and glass) between the conducting electrodes appreciably influences the discharge plasma characterized by optical emission spectroscopy technique. Using intensity ratio method, the electron temperature and electron number density are determined from recorded spectra as function of ac input voltage, type and thickness of dielectric barrier and inter-electrode gap. It is observed that both the electron temperature and electron number density increase with the increase in ac input voltage and ε r / d ratio, while a decreasing trend is observed with increase in inter-electrode gap.

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Atmospheric-pressure plasma technology

Cited by 263 publications

References 76 publications

Thermal Plasma Gasification of Municipal Solid Waste (MSW)

Thermal Plasma Gasification of Municipal Solid Waste (MSW)

Spatial distribution of the electrical potential and ion concentration in the downstream area of atmospheric pressure remote plasma

OPTICAL CHARACTERIZATION OF 50 Hz ATMOSPHERIC PRESSURE SINGLE DIELECTRIC BARRIER DISCHARGE PLASMA

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