estudio y caracterización de un plasma de microondas a presión ...

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Capítulo 6 Figure 6.7 shows that the power increase translates into an increase in the rotational temperature. The same is true in the case of vibrational temperature (Fig. 6.8), which shows that the temperature increases with increasing microwave power supplied to the plasma, keeping the same decline in their values for higher axial positions. This increase in temperatures is due to greater input of energy to electrons, which is then transmitted by heavy particle collisions. The rotational temperature increase results in the highest percentage of destruction detected, which is a result of the reduced chance of recombination of initial CCl4 by the dependence of recombination with the gas temperature, as was discussed in the previous section. Axial Position (mm) 35 30 25 20 15 10 5 1.5 L/min, 300 W, 1000 ppm CCl 4 CN I (a.u.) -1,5 -1,0 -0,5 0,0 0,5 1,0 1,5 Radial Position (mm) Axial Position (mm) 35 30 25 20 15 10 5 0 75,00 150,0 225,0 300,0 375,0 450,0 525,0 600,0 675,0 750,0 825,0 900,0 975,0 1050 1125 1200 -1,5 -1,0 -0,5 0,0 0,5 1,0 1,5 Radial Position (mm) Figure 6.9: Radial and axial distribution of CN in the helium plasma with 1000 ppm of carbon tetrachloride for three different values of microwave power. Axial Position (mm) 35 30 25 20 15 10 5 1.5 L/min, 600 W, 1000 ppm CCl 4 CN 1.5 L/min, 900 W, 1000 ppm CCl 4 CN I (a.u.) -1,5 -1,0 -0,5 0,0 0,5 1,0 1,5 Radial Position (mm) 0 125,0 250,0 375,0 500,0 625,0 750,0 875,0 1000 1125 1250 1375 1500 1625 1750 1875 2000 I (a.u.) 0 75,00 150,0 225,0 300,0 375,0 450,0 525,0 600,0 675,0 750,0 825,0 900,0 975,0 1050 1125 1200 159
Distribución de temperaturas y especies 160 As can also be seen in Figures 6.7 and 6.8, when the microwave power increases, the height of the plasma increases. In Figure 6.9, values of the axial and radial head intensity of the molecular radical band of CN are shown for the three values of microwave power discussed. It may be noted that in this case, the plasma increases in intensity and height, increasing the energy received by the electrons and the volume of plasma. 6.4.3. Concentration of carbon tetrachloride In the previous sections, a fixed concentration of 1000 ppm CCl4 has been used. The rotational temperature variation with different concentrations (0 to 10000 ppm) is shown in Figure 6.10. The axial behaviour is similar to that discussed above. The energy decays and points away from the coupler, and the temperature decreases. Rotational Temperature (K) 6000 5500 5000 4500 4000 3500 3000 2500 2000 0 5 10 15 20 25 Axial position (mm) Rotational Temp. Helium Plasma 600W, 1,5L/min, CCl 4 10000 ppm 1000 ppm 100 ppm 10 ppm 0 ppm Figure 6.10: Axial distribution of rotational temperature in a helium plasma for four concentrations and the situation with no residue. An increase is observed in the rotational temperature by introducing more CCl4 as a result of reduced thermal conductivity due to the increased presence of chlorine in the interior of the discharge (Table 6.1). This result is consistent with the rate of destruction
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UNIVERSIDAD DE CÓRDOBA FACULTAD DE
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ESTUDIO Y CARACTERIZACIÓN DE UN PL
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Este trabajo ha sido realizado en e
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Dedicado a Rocío, Darío y Noah Un
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Índice DESTRUCCIÓN DE VOCS CON PL
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Índice iv 4.4. Ejemplo: Antorcha d
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ÍNDICE DE FIGURAS Figura I.1: Esqu
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Índice Figure 3.11: Variation of t
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Índice Figure 6.5: Radial and axia
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ESTRUCTURA Y OBJETIVOS El presente
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I.1. Compuestos orgánicos volátil
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Introducción droguerías. En el si
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Introducción agua subterránea. Es
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I.2.1. Técnicas de recuperación d
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Introducción concentraciones relat
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Introducción cuando el gas sale de
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Introducción los gases a algún va
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Introducción incineradores catalí
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Introducción En la figura I.3 se m
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Introducción plasma, y por tanto r
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I.3.1. Descargas corona pulsadas In
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Introducción En este caso, la mues
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Introducción por tanto, las dimens
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Introducción refiere. De hecho la
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Introducción [26] Hsiao MC, Merrit
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CAPÍTULO 1 REMOVAL OF VOLATILE ORG
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1.2. Experimental set-up Capítulo
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Capítulo 1 The destruction percent
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Capítulo 1 Our data also support t
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% DRE % DRE 100,0000 100,0000 99,99
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Capítulo 1 Energy efficiencies of
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CAPÍTULO 2 APPLICATION OF A MICROW
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Capítulo 2 at atmospheric pressure
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2.2.1. Microwave generator and coup
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2.3. Results 2.3.1. Destruction of
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Capítulo 2 mm. The curves are simi
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Capítulo 2 In obtaining high energ
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Capítulo 2 Figure 2.6b shows the v
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Capítulo 2 revealed the presence o
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Capítulo 2 destruction step but un
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Capítulo 2 concentrations in the p
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[23] B.M. Penetrante, et al.: Plasm
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CAPÍTULO 3 ASSESSMENT OF A NEW CAR
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Capítulo 3 enhanced destruction an
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3.2.1. Microwave generator and its
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3.2.2. Sample insertion Capítulo 3
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Capítulo 3 concentration was a res
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Capítulo 3 Figure 3.4: Variation o
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Capítulo 3 different microwave pow
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Concentration CO 2 (ppm) 10000 1000
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Capítulo 3 CuCl2·2H2O on glass su
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Capítulo 3 Figure 3.10 shows some
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3.4. Conclusions Capítulo 3 The pr
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Capítulo 3 [14] A. Rodero, M.C. Qu
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Destrucción de VOCs con plasma de
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Page 135 and 136: Destrucción de VOCs con plasma de
Page 148 and 149: CAPÍTULO 5 APPLICATION OF MICROWAV
Page 150 and 151: Capítulo 5 99% were achieved. Usin
Page 152 and 153: COMPONENT DESCRIPTION Microwave gen
Page 154 and 155: Concentration (ppb) 300 250 200 150
Page 156 and 157: TCC Concentration (ppb) 1100 1000 9
Page 158 and 159: Capítulo 5 5.4 and 5.5 are virtual
Page 160 and 161: Capítulo 5 indicated that the syst
Page 162 and 163: Capítulo 5 was nearly 100%. The de
Page 164 and 165: Capítulo 5 GC/MS analyses revealed
Page 166 and 167: Figure 5.12: CN rotational bands ob
Page 168 and 169: 5.5. References [1] R.E. Doherty: J
Page 170: DISTRIBUCIÓN DE TEMPERATURAS Y ESP
Page 173 and 174: Distribución de temperaturas y esp
Page 185: Distribución de temperaturas y esp
Page 194 and 195: CAPÍTULO 7 AXIAL DISTRIBUTION OF T
Page 196 and 197: Capítulo 7 of C2HCl3 achieve destr
Page 198 and 199: 7.3. Results Capítulo 7 To study t
Page 200: 7.4. References [1] N.J. Park Ridge
Page 205 and 206: Axial position (mm) Axial Position
Page 208 and 209: CONCLUSIONES GENERALES • Ha sido
Page 210 and 211: Conclusiones Generales punta del ac
Page 212 and 213: ANEXO Producción científica fruto
Page 214 and 215: Producción científica fruto de es
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