Decomposition of methyl chloride by using an RF plasma reactor

Hsieh, Lien Te; Lee, Wen Jhy; Chen, Chuh Yung; Wu, Yo Ping Greg; Chen, Shui Jen; Wang, Ya Fen

doi:10.1016/s0304-3894(98)00182-4

Cited by 24 publications

(25 citation statements)

References 22 publications

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“…Moreover, at higher φ values, higher CH 3 Cl feeding concentrations, and higher input power wattages, more soot formation and polymerization were also found in the plasma reactor. These resulted in a lower carbon balance in the effluent gas stream (Hsieh et al, 1998b). Both methyl chloride decomposition efficiency and fraction of total-carbon input converted into CO and CO 2 were decreased by increasing the methyl chloride feeding concentration.…”

Section: (4) Decomposition Of Ethylene Oxide In the Rf Plasma Environmentioning

confidence: 99%

“…• Hsieh et al (1998b). Hsieh et al (1998b) concluded that in the CH 3 Cl/O 2 /Ar plasma, the decomposition fraction of CH 3 Cl was over 99.99%, which occurred around 440°C in the condition designed for 3% of CH 3 Cl feeding concentration, 1.0 of equivalence ratio (φ), 20 Torr of operation pressure, 100 sccm of total gas flow rate and 100 watts of input power wattage.…”

Section: (4) Decomposition Of Ethylene Oxide In the Rf Plasma Environmentioning

confidence: 99%

“…Hsieh et al (1998b) concluded that in the CH 3 Cl/O 2 /Ar plasma, the decomposition fraction of CH 3 Cl was over 99.99%, which occurred around 440°C in the condition designed for 3% of CH 3 Cl feeding concentration, 1.0 of equivalence ratio (φ), 20 Torr of operation pressure, 100 sccm of total gas flow rate and 100 watts of input power wattage. They indicated that the CH 3 Cl decomposition fractions increase when the equivalence ratio is raised to values around or below stoichiometry; and then decrease either sharply (50 W) or moderately (70 W) when the equivalence ratio goes up or down to values exceeding stoichiometry (Hsieh et al, 1998b). However, there is no significant difference for those in higher input power wattages (both 90 and 100 W).…”

Section: (4) Decomposition Of Ethylene Oxide In the Rf Plasma Environmentioning

confidence: 99%

“…Both methyl chloride decomposition efficiency and fraction of total-carbon input converted into CO and CO 2 were decreased by increasing the methyl chloride feeding concentration. Besides, input power wattage (W) is the most important parameter in governing the temperature in the plasma reactor because the plasma reaction is associated mainly with the energy provided (Hsieh et al, 1998b). Their study indicates the significance of sensitivity for the T (°C) in the plasma reactor is: W > C CH3Cl > φ.…”

Section: (4) Decomposition Of Ethylene Oxide In the Rf Plasma Environmentioning

confidence: 99%

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Decomposition of Methyl Tert-Butyl Ether by Adding Hydrogen in a Cold Plasma Reactor

Hsieh

Tsai

Chang

et al. 2011

Aerosol Air Qual. Res.

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Methyl tert-butyl ether (MTBE) is extensively used as an oxygenate and octane enhancer in gasoline. Its release to the environment has generated great public and governmental concern. In this study, we give a brief review of the decomposition of air toxics by the application of radio frequency (RF) plasma reactors and then present our study on decomposition of methyl tert-butyl ether by adding hydrogen in a cold plasma reactor. Based on our references, there are four types of the application in the RF plasma reactors are discussed, including: (i) Application I.: Converting methane, decomposing carbon dioxide, ethoxyethane, and ethylene oxide; (ii) Application II.: Decomposing methyl chloride, 1,1-C 2 H 2 Cl 2 , and CH 2 Cl 2 ; (iii) Application III.: Decomposing dichlorodifluoromethane, CHF 3 , CH 2 F 2 , CCl 2 F 2 , and BF 3 ; (iv) Application IV.: Decomposing dichlorodifluoromethane, CH 3 SH, CS 2 , SF 6 , and SF 6 + H 2 S mixture. Moreover, this study demonstrates the feasibility of applying a radio frequency (RF) plasma reactor for decomposing and converting MTBE. Experimental results indicate that the decomposition efficiency (η MTBE ) and the fraction of total input carbon converted into CH 4 , C 2 H 2 and C 2 H 4 (F CH4+C2H2+ C2H4 ) increased with the input power and decreased as both the H 2 /MTBE ratio and the MTBE influent concentration in the MTBE/H 2 /Ar plasma environment increased. Interestingly, applying radio frequency plasma to the decomposition of MTBE while adding hydrogen constitutes alternative method of decomposing and converting MTBE into CH 4 , C 2 H 4 , C 2 H 2, iso-butane and iso-butene.

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Section: (4) Decomposition Of Ethylene Oxide In the Rf Plasma Environmentioning

confidence: 99%

Section: (4) Decomposition Of Ethylene Oxide In the Rf Plasma Environmentioning

confidence: 99%

Section: (4) Decomposition Of Ethylene Oxide In the Rf Plasma Environmentioning

confidence: 99%

Section: (4) Decomposition Of Ethylene Oxide In the Rf Plasma Environmentioning

confidence: 99%

See 2 more Smart Citations

Decomposition of Methyl Tert-Butyl Ether by Adding Hydrogen in a Cold Plasma Reactor

Hsieh

Tsai

Chang

et al. 2011

Aerosol Air Qual. Res.

Self Cite

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“…In this case, air direct current plasma torches are most often used [2]. In addition, the processing of waste by nonequilibrium plasma is investigated: gliding discharge [3], DBD [4], RF plasma [5]. Particular interest is plasma processing with steam, which leads to the decomposition of complex heteroatomic organic substances (e.g., chlorinated) with the formation of an appropriate hydride (e.g., hydrogen chloride) [6].…”

Section: Introductionmentioning

confidence: 99%

High voltage AC plasma torch operating on vapours of organic substances

Суров

Popov

Serba

et al. 2017

J. Phys.: Conf. Ser.

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Decomposition of ethoxyethane in the cold plasma environment

Liao

Lee

Chen

et al. 2000

J. Chem. Technol. Biotechnol.

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A radio frequency (RF) plasma system was used to decompose the ethoxyethane (EOE) contained gas. The reactants and ®nal products were analyzed by using an FTIR (Fourier Transform Infrared) spectrometer. The effects of plasma operational parameters, including input power wattage (W), equivalence ratios (Φ), feeding concentration (C) of EOE and total gas¯ow rate (Q) for EOE decomposition were evaluated. In addition, the possible reaction pathways for EOE decomposition and the formation of ®nal products were built up and are discussed in this paper. The mole fraction pro®les of C 2 H 5 OC 2 H 5 , CH 3 CHO, CH 4 , C 2 H 6 , C 2 H 4 , C 2 H 2 , CO 2 and CO were detected and are also presented in this paper. At lower input power wattages, the creation of glow discharge is strongly dependent on the plasma production index (PPI). When input power wattages are smaller than 30 W, the minimum values of PPI to create glow discharge ranged between 18.2 and 19.0. The results of this study revealed that, in the RF plasma reactor, the decomposition fraction of EOE could reach 100% under most operational conditions.

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Decomposition of methyl chloride by using an RF plasma reactor

Cited by 24 publications

References 22 publications

Decomposition of Methyl Tert-Butyl Ether by Adding Hydrogen in a Cold Plasma Reactor

Decomposition of Methyl Tert-Butyl Ether by Adding Hydrogen in a Cold Plasma Reactor

High voltage AC plasma torch operating on vapours of organic substances

Decomposition of ethoxyethane in the cold plasma environment

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