Plasma pyrolyzer

An important feature of acetylene production is the high energy requirement due to the formation of a triple bond. In the Hiils plasma arc process, the energy is supplied by an electric arc. Hydrocarbons are fed to the electric arc reactor in gaseous form and are pyrolyzed at high temperature (>2000 K). At these temperatures, acetylene is formed in preference to other hydrocarbon compounds. To suppress further reaction to carbon and hydrogen, the hot crack gas must be cooled rapidly (a few microseconds) to low temperatures. 

Hamisch F, Savastenko NA, Zhao F, Steffen H, Briiser V, Schroder U (2009) Comparative study on the performance of pyrolyzed and plasma-treated iron(II) phthalocyanine-based catalysts for oxygen reduction in pH neutral electrolyte solutions. J Power Sources 193 86-92... 

Particle size distribution of pyrolyzed and plasma treated cobalt TMPP-based electrocatalysts supported on Black Pearls. (Source Iris Herrmann, Helmholtz Centre Berlin for Materials and Energy, Germany.)... 

In the thermal decomposition of N2H4 in shock waves, NH(X) is formed in secondary reactions [20]. In shock-heated NH3-noble gas mixtures at high temperatures (T>3000 K) [37 to 39] and in a high-temperature plasma (T = 3200 K), emission from NH(A) was observed [40]. At lower temperatures in shock waves NH(X) was observed [41]. HN3 and HNCO can be pyrolyzed at significantly lower temperatures (T> 1200 K) under these conditions mainly NH(X) is formed [44, 45]. 

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