Wyniki wyszukiwania - BazTech

Ograniczanie wyników

2 Polish Journal of Applied Chemistry

2 2005

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: C2 hydrocarbons

Sortuj według:

Ogranicz wyniki do:

Reactions of methane in non-equilibrium plasmas under different process parameter

Schmidt-Szałowski K., Opalińska T., Sentek J.

Polish Journal of Applied Chemistry

2005

Vol. 49, nr 1-2

79-89

The methane conversion into C2 hydrocarbons, carbon black, and hydrogen has been studied under non-equilibrium plasma conditions, using dielectric barrier discharges (DBD) and gliding discharges (GD) at low and medium temperatures at atmospheric pressure. It has been found that ethane is the main product of the filamentary DBD action in the mixtures CH4+Ar and the reaction rate depends mainly on the concentration of high-energy components being able to initiate the chemical transformations of methane. Using GD, two processes are observed: the methane conversion into unsaturated hydrocarbons C2 (mainly acetylene) and into carbon black. The energy density of GD and the methane concentration in initial gas mixtures (CH4+H2 and CH4+Ar) are the main parameters influencing the methane conversion rate and the unit energy consumption.

Reactions of methane in dielectric-barrier discharges

Górska A., Sentek J., Krawczyk K., Schmidt-Szałowski K.

Polish Journal of Applied Chemistry

2005

Vol. 49, nr 1-2

91-100

The reactions of methane under the conditions of barrier discharges were studied in the mixtures: 1) 50% CH4+ 50% Ar, 2) 50%CH4+ 25%CO2+ 25% Ar, and 3) 50%CH4+ 50%CO2, under atmospheric pressure at about 50°C and about 300°C. Besides hydrogen, ethane was the main gaseous product of the reaction, with small additions of ethylene and acetylene. An increase of the overall methane conversion and conversion into C2 hydrocarbons was observed in cases where grains of quartz glass was packed in the discharge gap.