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Study of electrical discharge initiated chemical processes in Titan like atmosphere in stationary regime
Zbytek, Filip ; Chudják, Stanislav (referee) ; Krčma, František (advisor)
The aim of the presented bachelor's thesis was the study of chemical processes initiated by electric discharge in an atmosphere similar to that of Titan. This bachelor's thesis focuses on simulating Titan's atmosphere at normal laboratory temperature and atmospheric pressure. Titan's atmosphere is mainly composed of nitrogen, which constitutes 98 % of the atmosphere. For the simulation, spark and glow electric discharges generated in a special reactor were used. Measurements were conducted with varying CH4 flow rates of 0, 1, 2, 3, and 4 sccm. The first part of the measurements was conducted for the spark discharge and the second part for the glow discharge, both under the same conditions. The synthesized gaseous products were analyzed using proton transfer reaction time-of-flight mass spectrometry (PTR-ToF-MS). Mainly simple nitrogenous aliphatic hydrocarbons were detected, but with increasing CH4 flow, the formation of more complex aromatic hydrocarbons occurred for both discharges. The composition of the plasma and its diagnostics were investigated using optical emission spectrometry (OES). Measurements using proton transfer reaction mass spectrometry and optical emission spectrometry were conducted simultaneously.
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