METHOD AND DEVICE FOR PREPARING CARBON NANOTUBES AND HYDROGEN

WIPO Patent Application WO/2021/147531

A1

A method capable of continuously producing carbon nanotubes and hydrogen. The method comprises: preparing a catalyst precursor, and pre-reducing the catalyst precursor; adding a certain height of carbon nanotubes in a reactor as a stacked bed in advance, and electrically heating the carbon nanotubes to the reaction temperature of a vapor deposition furnace in the presence of a protective gas; putting the pre-reduced catalyst or unreduced catalyst precursor into the reactor; under the condition of stirring the solid materials in the reactor, introducing a carbon source gas into the reactor, reacting same by means of the vapor deposition furnace to generate new carbon nanotubes and hydrogen, continuously discharging a part of carbon nanotubes and a part of hydrogen, and repeating the described steps to achieve the continuous preparation of carbon nanotubes. A device for the method. The device has the advantages of a simple structure, low costs, easy operation, and a high utilization rate of raw materials, can manufacture a large batch of carbon nanotubes with a high purity at one time, and is suitable for large-scale industrial production.

LI YAN (CN)
GENG LEI (CN)
LV ZHENHUA (CN)
LI LONGLI (CN)

PCT/CN2020/134160

July 29, 2021

December 07, 2020

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SHANDONG GENERAL NANOMATERIALS CO LTD (CN)
SHANDONG DAZHAN NANO MAT CO LTD (CN)

C01B32/162; C01B32/164

CN102482098A	2012-05-30
CN109698033A	2019-04-30
CN110282614A	2019-09-27
CN107311150A	2017-11-03
JP2007112677A	2007-05-10
CN108946704A	2018-12-07
CN110203905A	2019-09-06

SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)

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