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Acetylene was pyrolysed at 893 and 1019 K, at pressures between 31.5 and 109 Torr, and at residence times between 23 and 451 ms. By electron microscopy, carbon nanotubes were observed to be formed on the quartz surface. Carbon formation was monitored by laser extinction at unusually low conversions (0.1-1.5%). Formation of gaseous products was followed by gas chromatography. Boosting the radical concentration...
Ethane was pyrolysed in a flow reactor system at residence times from 0.5 to 20 s, at 1185 K and a pressure of 40 kPa. Liquid products were trapped and analyzed by liquid chromatography, gas chromatography and mass spectrometry using atmospheric pressure chemical ionization and electron impact ionization. At least 90 products (with m/z ratios up to 700) were present; of these products 19 were identified,...
This study reports the amounts of gaseous products and pyrolytic carbon formed during the pyrolysis of ethane under industrially significant conditions. Analytical techniques included gas chromatography, mass spectrometry, and gravimetric analysis. Changes in the product composition were measured in a flow system as a function of residence time (0.3 to 21 s), pressure (6.7 to 53 kPa) and temperature...
Acetylene has been pyrolysed in a flow reactor system at 914-1039 K and 6-47 kPa, with residence times between 3 and 50 ms. Pressures at the reactor inlet were greater than those at the outlet because of viscous drag. This permitted calculation of the viscosity of acetylene, which was found to have a dependence on the absolute temperature proportional to T 0.71+ /- ...
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