Patent ID: 8722007
Filing Date: 2014-05-13
Classification: B82Y,C01B

Abstract:
1. A method for producing carbon nanospheres, the method employing heavy oil obtained from decant oil as a carbon precursor, and using the technique of chemical vapor deposition to obtain carbon nanospheres, the method comprising: a) pumping the carbon precursor to a vaporization chamber in which it is dripped onto a surface heated to and maintained at a temperature at which the carbon precursor drop is completely vaporized, simultaneously being swept by a controlled flow of inert gas to provide pulses of vapor of constant composition into a reaction chamber of a tubular furnace; b) forming carbon nanospheres from decomposition of the carbon precursor into the reaction chamber into an open alumina tube maintained at a temperature between 700° C. and 1200° C.; and c) collecting the carbon nanospheres continuously, when using a vertical tubular furnace, or in a batch, when using a horizontal tubular furnace.