Continuous Mass Production of Carbon Nanotube Using Secondary Fluidized Bed

Continuous mass production of carbon nanotubes with chemical vapor deposition was studied by using secondary fluidized bed. Parameters such as temperature and flow rate were investigated. The yield of carbon nanotube is 200g/h. TGA and Raman analysis show the purity of the product is over 50%, but not well graphited. Optimized condition acquired is N25000sccm, C2H21000sccm at 750℃. Hydrogen reduction is not necessary and the catalyst can be reused after purification.