US 12,187,613 B2
System and method of producing carbon nanotubes
David Gailus, Merrimack, NH (US); and Mark Schauer, Merrick, NH (US)
Assigned to Nanocomp Technologies Inc., The Woodlands, TX (US)
Filed by Nanocomp Technologies, Inc., The Woodlands, TX (US)
Filed on Oct. 13, 2023, as Appl. No. 18/379,974.
Application 18/379,974 is a continuation of application No. 17/598,970, granted, now 11,820,660, previously published as PCT/US2020/026590, filed on Apr. 3, 2020.
Claims priority of provisional application 62/828,981, filed on Apr. 3, 2019.
Prior Publication US 2024/0124311 A1, Apr. 18, 2024
Int. Cl. C01B 32/162 (2017.01); B01J 23/745 (2006.01); B01J 31/12 (2006.01); B01J 38/02 (2006.01); B01J 38/16 (2006.01); B01J 38/48 (2006.01); B01J 38/60 (2006.01); B82Y 40/00 (2011.01); D01F 9/133 (2006.01)
CPC C01B 32/162 (2017.08) [B01J 23/745 (2013.01); B01J 31/122 (2013.01); B01J 38/02 (2013.01); B01J 38/16 (2013.01); B01J 38/48 (2013.01); B01J 38/60 (2013.01); D01F 9/133 (2013.01); B82Y 40/00 (2013.01); C01P 2004/13 (2013.01); C01P 2004/60 (2013.01); C01P 2004/64 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method of producing carbon nanotubes, comprising:
(i) obtaining a flare gas comprising carbonaceous gases;
(ii) treating the flare gas by subjecting the flare gas to one or more processes to remove at least a portion of any excess carbon dioxide and/or carbon monoxide from the flare gas;
(iii) introducing a mixture of the flare gas, catalyst, and hydrogen into a reactor having a temperature of at least 800° C.;
(iv) permitting the carbon atoms of the carbonaceous gases to interact with the catalyst to produce carbon nanotubes; and
(v) collecting the carbon nanotubes.