US 11,939,477 B2
High temperature heat integration method of making carbon black
Peter Louis Johnson, Mountain View, CA (US); and Roscoe W. Taylor, San Mateo, CA (US)
Assigned to MONOLITH MATERIALS, INC., Lincoln, NE (US)
Filed by MONOLITH MATERIALS, INC., Redwood City, CA (US)
Filed on Aug. 19, 2016, as Appl. No. 15/241,771.
Claims priority of provisional application 62/209,017, filed on Aug. 24, 2015.
Prior Publication US 2017/0058128 A1, Mar. 2, 2017
Int. Cl. C09C 1/48 (2006.01); B01J 19/08 (2006.01); C01B 32/05 (2017.01)
CPC C09C 1/485 (2013.01) [B01J 19/088 (2013.01); C01B 32/05 (2017.08); C09C 1/48 (2013.01); B01J 2219/0871 (2013.01); B01J 2219/0883 (2013.01); B01J 2219/0898 (2013.01)] 13 Claims
 
1. A method, comprising:
(a) producing, from a hydrocarbon feedstock in a reactor, an effluent gas comprising carbon particles and hydrogen;
(b) directing the effluent gas to a heat exchanger;
(c) separating at least a portion of the hydrogen from the effluent gas, thereby obtaining separated hydrogen;
(d) preheating the separated hydrogen in the heat exchanger to (i) at least 1200° C. or (ii) a temperature up to a reaction temperature in the reactor, thereby obtaining preheated hydrogen, wherein the heat exchanger comprises graphite; and
(e) providing the preheated hydrogen to the reactor.