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Effect of Hydrogen Addition on the Conversion of Hydrocarbon Gas to Pyrocarbon Nanoparticles  

Kim, Soo Hyung (Department of Nanosystem and Nanoprocess, College of Nanoscience and Nanotechnology, Pusan National University)
Publication Information
Korean Chemical Engineering Research / v.46, no.6, 2008 , pp. 1025-1028 More about this Journal
Abstract
With the assistance of thermal pyrolysis process for hydrocarbon gases, the formation and growth of particulate carbon was systematically investigated as a function of temperature in the gas phase. The yield and average size of pyrocarbon particles were found to increase with increasing pyrolysis temperature. The difference in the yield of carbon particles generated by pyrolizing acetylene and ethylene gas posed a question about the role of hydrogen in the pyrolysis of hydrocarbon gases. In order to reveal the role of hydrogen, controlled amount of hydrogen was added to the acetylene pyrolysis, and then hydrogen addition was observed to suppress the formation and growth of carbon particles. One can control the size of pyrocarbon particles by controlling the hydrogen gas addition.
Keywords
Pyrolysis; Carbon; Nanoparticles; Hydrogen; Acetylene;
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