RU2009105025A

RU2009105025A - METHOD FOR SYNTHESIS OF CARBON NANOTUBES

Info

Publication number: RU2009105025A
Application number: RU2009105025/05A
Authority: RU
Inventors: Алексей Григорьевич Ткачев (RU); Алексей Григорьевич Ткачев; Сергей Владимирович Мищенко (RU); Сергей Владимирович Мищенко; Владимир Николаевич Артемов (RU); Владимир Николаевич Артемов; Максим Алексеевич Ткачев (RU); Максим Алексеевич Ткачев
Original assignee: Общество с ограниченной ответственностью "НаноТехЦентр" (RU); Общество с ограниченной ответственностью "НаноТехЦентр"
Priority date: 2009-02-13
Filing date: 2009-02-13
Publication date: 2010-08-20
Also published as: RU2401798C1

Abstract

1. Способ получения углеродных нанотрубок, заключающийся в том, что в реактор, снабженный нагревателем и соединенным с приводом вращения диском, установленным в нижней части корпуса реактора, на диск помещают мелкодисперсный катализатор слоем 0,1-0,3 мм, продувают инертным газом и при включенном приводе вращения диска нагревают до температуры пиролиза, после чего производят непрерывную подачу углеродсодержащего газа и отвод газообразных продуктов пиролиза через патрубки, размещенные в верхней части реактора, и по окончании процесса пиролиза готовый продукт охлаждают, отличающийся тем, что в реакторе устанавливают расположенное над диском газораспределительное устройство и выполняют каналы, соединенные с системой принудительного охлаждения, на диске устанавливают контейнер, в котором помещают катализатор, после герметизации реактора включают нагреватели и через газораспределительное устройство в пространство над контейнером подают инертный и углеродсодержащий газ, при этом отвод продуктов пиролиза ведут из полости, расположенной над газораспределительным устройством, после окончания синтеза включают систему принудительного охлаждения реактора. ! 2. Способ получения углеродных нанотрубок по п.1, отличающийся тем, что углеродсодержащий газ перед подачей в реактор дополнительно подогревают до температуры, ниже температуры пиролиза. ! 3. Способ получения углеродных нанотрубок по п.1, отличающийся тем, что в линии углеродсодержащего газа дополнительно устанавливают подогреватель газа, который соединяют с линией отвода газообразных продуктов пиролиза. 1. A method of producing carbon nanotubes, which consists in the fact that in a reactor equipped with a heater and a disk connected to a rotation drive installed in the lower part of the reactor vessel, a finely dispersed catalyst is placed on the disk with a layer of 0.1-0.3 mm, purged with an inert gas and with the drive turned on, the rotation of the disk is heated to the pyrolysis temperature, after which the carbon-containing gas is continuously supplied and the gaseous pyrolysis products are removed through the nozzles located in the upper part of the reactor, and at the end of the process the finished product is cooled, characterized in that a gas distribution device located above the disk is installed in the reactor and channels connected to the forced cooling system are executed, a container is placed on the disk in which the catalyst is placed, after the reactor is sealed, the heaters are turned on and through the gas distribution device into the space above the container inert and carbon-containing gas are supplied, while the removal of the pyrolysis products is carried out from the cavity located above the gas distribution device tion, after synthesis include forced cooling system of the reactor. ! 2. The method of producing carbon nanotubes according to claim 1, characterized in that the carbon-containing gas is additionally heated to a temperature below the pyrolysis temperature before being fed to the reactor. ! 3. The method of producing carbon nanotubes according to claim 1, characterized in that a gas heater is additionally installed in the line of carbon-containing gas, which is connected to the exhaust gas line of the pyrolysis products.

Claims

1. A method of producing carbon nanotubes, which consists in the fact that in a reactor equipped with a heater and a disk connected to a rotation drive installed in the lower part of the reactor vessel, a finely dispersed catalyst is placed on the disk with a layer of 0.1-0.3 mm, purged with an inert gas and with the drive turned on, the rotation of the disk is heated to the pyrolysis temperature, after which the carbon-containing gas is continuously supplied and the gaseous pyrolysis products are removed through the nozzles located in the upper part of the reactor, and at the end of the process the finished product is cooled, characterized in that a gas distribution device located above the disk is installed in the reactor and channels connected to the forced cooling system are executed, a container is placed on the disk in which the catalyst is placed, after the reactor is sealed, the heaters are turned on and through the gas distribution device into the space above the container inert and carbon-containing gas are supplied, while the removal of the pyrolysis products is carried out from the cavity located above the gas distribution device tion, after synthesis include forced cooling system of the reactor.

2. The method of producing carbon nanotubes according to claim 1, characterized in that the carbon-containing gas is additionally heated to a temperature below the pyrolysis temperature before being fed to the reactor.

3. The method of producing carbon nanotubes according to claim 1, characterized in that a gas heater is additionally installed in the line of carbon-containing gas, which is connected to the exhaust gas line of the pyrolysis products.