Device and method for single-stage continuous preparation of carbon nanotubes

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United States of America Patent

PATENT NO 11820661
SERIAL NO

16605834

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Abstract

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An apparatus for continuous preparation of carbon nanotubes, based on a fluidized bed reactor. The fluidized bed reactor comprises an annular varying diameter zone, a raw material gas inlet, a catalyst feeding port, a protective gas inlet, and a pulse gas controller. The annular varying diameter zone is located at a zone from a ¼ position starting from the bottom to the top. The pulse gas controller is disposed at the arc-shaped top portion of the annular varying diameter zone. The catalyst feeding port is located at the top of the fluidized bed reactor. The raw material gas inlet and the protective gas inlet are located at the bottom of the fluidized bed reactor. The device is also provided with a product outlet and a tail gas outlet. The device has a simple structure and low cost, is easy to operate, has a high raw material utilization rate, can effectively control the problem of carbon deposition on the inner wall of a primary reactor, can manufacture high-purity carbon nanotubes, and is suitable for large-scale industrial production.

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Patent Owner(s)

Patent OwnerAddress
SHANDONG DAZHAN NANO MATERIALS CO LTD256200 320-1 NO 1556 HUIXIAN 1ST ROAD ZOUPING ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE BINZHOU CITY SHANDONG PROVINCE BINZHOU CITY SHANDONG PROVINCE 256200

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bao, Zhongcun Binzhou, CN 1 0
Geng, Lei Binzhou, CN 20 108
Li, Longli Binzhou, CN 2 0
Li, Yan Binzhou, CN 1447 20982
Lv, Zhenhua Binzhou, CN 66 211

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