Patent ID: 9102525
Filing Date: 2015-08-11
Classification: B01J,B82Y,C01B

Abstract:
1. A continuous process for producing carbon nanotubes which includes supplying a continuous feed of a catalyst in gaseous vapor form, at least one carrier gas, and at least one hydrocarbon gas to an upward flow reactor operating under conditions suitable to produce carbon nanotubes, the gaseous feed being provided to the reactor through a spiral delivery tube located externally relative to the reactor such that a swirling motion is provided to the flow within the reactor, the internal surfaces of the reactor are cleaned of deposits, and the carbon nanotubes are continuously formed in the reactor and are continuously carried by the flowing gases out of the reactor to be collected in a separation system; wherein the gaseous feed is maintained at a temperature that maintains the catalyst in a gaseous vapor form prior to being supplied to the reactor.