Lg Chem, Ltd

Korea Research Institute of Chemical Technology

Korea Institute of Machinery & Materials

Donghyun Cho

Na Young Kang

KyungYeon Kang

Jihee Woo

Dae-hoon Lee

SungJin Kim

Kwan-Tae Kim

Seungyong Lee

Yong-Ki Park

Younghoon Song

Sungkwon Jo

Seongil Choi

A catalyst regenerator according to an embodiment of the present invention, as a catalyst regenerator that regenerates a coked catalyst separated from a product produced in an endothermic catalytic reaction of a fluidized bed reactor, includes: a reaction chamber that includes a regeneration space, receives the coked catalyst from a standpipe connected to the regeneration space, and discharges a regenerated catalyst to an outlet; a fuel supplier that is connected to the reaction chamber to inject a fuel for combustion into the regeneration space; and a fuel supplier that is connected to the reaction chamber to inject an air for combustion into the regeneration space, wherein the fuel injected from the fuel supplier is a reformed fuel containing hydrogen and carbon monoxide.

Catalyst regenerator

The present invention relates to a method for producing large-diameter, low-density carbon nanotubes. The method uses a catalyst containing spherical &#x3b1;-alumina that is capable of controlling the growth of carbon nanotubes without deteriorating the quality of the carbon nanotubes. The use of the catalyst makes the carbon nanotubes highly dispersible.

Carbon nanotubes having larger diameter and lower bulk density and process for preparing same

Growing community of inventors

Daejeon, South Korea

Donghyun Cho