| 摘要 |
PURPOSE:To efficiently obtain carbon fibers hardly contaminated by soot, by feeding a carbon source compound, catalyst source compound, sulfur compound and carrier gas to a heating zone at a specific temperature or above at specific feed rates. CONSTITUTION:A carbon source compound, e.g. methane, ethane, ethylene, etc., catalyst source compound, e.g. FeCl3, etc., carrier gas, e.g. H2, He, N2, Ar, etc., and sulfur compound, e.g. methyl thiol, etc., are fed to a heating zone to produce carbon fibers. In the process, the temperature of the heating zone is set at >=1,300 deg.C and the ratio of the feed rate (g) per unit time of the carbon source compound to the feed rate (mol) per unit time of the carrier gas fed to the heating zone is set at >=0.04mol/g. |
