Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received December 5, 2003
Accepted February 9, 2004
-
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
All issues
A Kinetic Study on the Conversion of Methane to Higher Hydrocarbons in a Radio-Frequency Discharge
Low Temperature Plasma Optics Department, P.N. Lebedev Physical Institute, Leninsky prospect, 53 117924 Moscow, Russian Federation 1Clean Technology Research Center, KIST, P.O.Box 131, Cheongryang, Seoul 136-791, Korea 2School of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 361-763, Korea
nabk@chungbuk.ac.kr
Korean Journal of Chemical Engineering, May 2004, 21(3), 601-610(10), 10.1007/BF02705494
Download PDF
Abstract
This study investigated methane conversion with direct current discharge at low pressure in a radio frequency. The main gaseous products of the reaction were ethane, ethylene, acetylene and propane. This study was concentrated on the influence of discharge conditions on the conversion of methane to higher hydrocarbons. Reaction temperature, electron density and mean residence time were calculated from experimental data and mathematical relations. The maximum conversion of the methane was about 45% with the pure methane as a reactant. Ethane was the main product when the reaction occurred in the glow discharge. Ethane selectivity decreased with the increase of the gas temperature. The kinetics of reactions was also analyzed from possible reaction equations and various rate constant data. Consequently, the dissociation constant and the density of radicals could be obtained at any experimental conditions.
References
Arigorev IS, Melihov EZ, "Physical Constants," Energoatomizdat, Moscow (1991)
Baulch DL, Drysdale DD, Horne DG, Lloyd AC, "Evaluated Kinetics Data for High Temperature Reactions," Univ. of Leads, V. 1 (1972)
Bird RB, Stewart WE, Lightfoot EN, "Transport Phenomena," John Wiley & Sons, New York (1960)
Brunet H, Lavarini B, Phys. Lett. A, 30, 181 (1969)
Cho W, Baek Y, Pang H, Kim YC, Korean J. Chem. Eng., 15(5), 500 (1998)
Dean AM, J. Phys. Chem., 94, 1432 (1990)
Granovsky VL, "Electric Current in Gas," Moscow (1952)
Hwang BB, Yeo YK, Na BK, Korean J. Chem. Eng., 20(4), 631 (2003)
Jeong HK, Kim SC, Han C, Lee H, Song HK, Na BK, Korean J. Chem. Eng., under revision (2001)
Kassel LS, Am. Chem. Soc., 54, 3949 (1932)
Kim SS, Lee H, Na BK, Song HK, Korean J. Chem. Eng., 20(5), 869 (2003)
Lee H, Savinov SY, Song HK, Na BK, J. Chem. Eng. Jpn., 34(11), 1356 (2001)
Lieberman MA, Lichtenberg AJ, "Principles of Plasma Discharge and Material Processing," John Wiley & Sons, New York (1994)
Na BK, Choi JW, Lee H, Song HK, Korean J. Chem. Eng., 19(6), 917 (2002)
Ochkin VN, Savinov YS, Sovolev NN, "Electron Excited Molecules in Nonequilibrium Plasma," N.Y. Niva Publ., Proc. Lebedev Phys. Inst., V. 179, Suppl. V.2 (1989)
Raizer YP, "Gas Discharge Physics," Springer-Verlag, Berlin (1991)
Rusanov VD, Fridman AA, "Physics of Chemically Active Plasma," Nauka, Moscow (1984)
Savinov SY, Lee H, Song HK, Na BK, Ind. Eng. Chem. Res., 38(7), 2540 (1999)
Savinov SY, Lee H, Song HK, Na BK, Korean J. Chem. Eng., 19(4), 564 (2002)
Savinov SY, Lee H, Song HK, Na BK, Plasma Chem. Plasma Process., 23(1), 159 (2003)
Baulch DL, Drysdale DD, Horne DG, Lloyd AC, "Evaluated Kinetics Data for High Temperature Reactions," Univ. of Leads, V. 1 (1972)
Bird RB, Stewart WE, Lightfoot EN, "Transport Phenomena," John Wiley & Sons, New York (1960)
Brunet H, Lavarini B, Phys. Lett. A, 30, 181 (1969)
Cho W, Baek Y, Pang H, Kim YC, Korean J. Chem. Eng., 15(5), 500 (1998)
Dean AM, J. Phys. Chem., 94, 1432 (1990)
Granovsky VL, "Electric Current in Gas," Moscow (1952)
Hwang BB, Yeo YK, Na BK, Korean J. Chem. Eng., 20(4), 631 (2003)
Jeong HK, Kim SC, Han C, Lee H, Song HK, Na BK, Korean J. Chem. Eng., under revision (2001)
Kassel LS, Am. Chem. Soc., 54, 3949 (1932)
Kim SS, Lee H, Na BK, Song HK, Korean J. Chem. Eng., 20(5), 869 (2003)
Lee H, Savinov SY, Song HK, Na BK, J. Chem. Eng. Jpn., 34(11), 1356 (2001)
Lieberman MA, Lichtenberg AJ, "Principles of Plasma Discharge and Material Processing," John Wiley & Sons, New York (1994)
Na BK, Choi JW, Lee H, Song HK, Korean J. Chem. Eng., 19(6), 917 (2002)
Ochkin VN, Savinov YS, Sovolev NN, "Electron Excited Molecules in Nonequilibrium Plasma," N.Y. Niva Publ., Proc. Lebedev Phys. Inst., V. 179, Suppl. V.2 (1989)
Raizer YP, "Gas Discharge Physics," Springer-Verlag, Berlin (1991)
Rusanov VD, Fridman AA, "Physics of Chemically Active Plasma," Nauka, Moscow (1984)
Savinov SY, Lee H, Song HK, Na BK, Ind. Eng. Chem. Res., 38(7), 2540 (1999)
Savinov SY, Lee H, Song HK, Na BK, Korean J. Chem. Eng., 19(4), 564 (2002)
Savinov SY, Lee H, Song HK, Na BK, Plasma Chem. Plasma Process., 23(1), 159 (2003)
