Method and apparatus for producing long carbon nanotubes

摘要: The present invention is used to produce long carbon nanotubes used, for example, in automobile and/or aircraft industry. An object of the obtain bundles multi-walled and well oriented sufficient length provide stability continuous producing process. The method comprises introducing a carbon-bearing component, promoter precursor nanotube growth catalyst carrier gas stream form mixture these components; passing said through reactor heated an operating temperature 1000°C 1200°C removing formed into product receiver. fed from bottom upwards at linear flow velocity 50 mm/c 130 mm/c. When reaches temperature, decreased 4-10 mm/c, increased 30-130 outlet reactor. apparatus means stream, vertical with working chamber, heating chamber delivering products chamber. made three successive sections, namely lower inlet 16 section, middle 17 section upper 18 diameter 1/5 1/3 17, while 1/4 17.