Abstract
Methane coupling under low temperature plasmas at atmospheric pressure is a green process by use of renewable sources of energy. In this study, CH4+H2 discharge plasma was on-line diagnosed by optical emission spectra so as to characterize the discharge system and to do spade work for the optimization of the technical parameters for future commercial production of methane coupling under plasmas. The study was focused on a calculation method for the online diagnosis of the electron excitation temperature in CH4+H2 discharge plasma at atmospheric pressure. The diagnostic method is easy, efficient and fairly precise. A serious error in a literature was corrected during the reasoning of its series of equations formerly used to calculate electron temperatures in plasmas.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Fu C H, Yang Y J. Fundamentals of Physics on Electronic Techniques (in Chinese). Guangzhou: South China University of Technology Press, 1991. 194
Wang Y D, Wang Q J, Fu J S, et al. Principles of Quantum Frequency Standard (in Chinese). Beijing: Science Press, 1986. 87
Hu Z Q, Zhen H S, Shi Y N. Gaseous Electronics (in Chinese). Beijing: Publishing House of Electronics Industry, 1985. 162–163
Chen Z Z, Gao S X. Electric Conduction of Gases (II) (in Chinese). Nanjing: Press of Nanjing Institute of Industry, 1988. 190–193
Ren L L, Cui J H. Optical emission spectrum online diagnoses for CH4+H2 discharge plasma system at atmospheric pressure. www.chemistrymag.org/cji, 2004, 6(6): 41–45
Wang H D, Ren L L, Gu J Q, et al. Physical Experimentation (in Chinese). 2nd ed. Tianjin: Tianjin University Press, 1997. 486
Orlando A, Daniel L F. Plasma Diagnostics (I) (in Chinese). Translated by Zheng S B, Hu J F, Guo S J, et al. Beijing: Publishing House of Electronics Industry, 1994. 393
Guo Z Y, Zhao W H. Arc and Thermal Plasmas (in Chinese). Beijing: Science Press, 1986. 268
Yao Z X, Zheng D X, Feng X M. Physical Electronics (in Chinese). Xi’an: Xi’an Jiaotong University Press, 1991. 193
Cui J H, Xu G H, Liu C J. Novel plasma reactor with rotary multi-tip electrodes used in CH4 coupling. Acta Phys Chim Sin, 2004, 20(5): 557–560
Author information
Authors and Affiliations
Corresponding author
Additional information
Supported by the National Natural Science Foundation of China (Grant Nos. 29776037 and 10675028) and the Science and Technology Development Foundation of SINOPEC (Grant No. X500005)
Rights and permissions
About this article
Cite this article
Cui, J., Xu, Z., Zhang, J. et al. Online diagnosis of electron excitation temperature in CH4+H2 discharge plasma at atmospheric pressure by optical emission spectra. Sci. China Ser. G-Phys. Mech. Astron. 51, 1892–1896 (2008). https://doi.org/10.1007/s11433-008-0175-6
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11433-008-0175-6