US 11,719,141 B2
Recuperative heat exchanger system
Richard John Jibb, Bloomfield, NJ (US); David Guymon, Bloomfield, NJ (US); Ron Herbanek, Bloomfield, NJ (US); Vincenzo Marco Brignone, Bloomfield, NJ (US); and Roberto Groppi, Bloomfield, NJ (US)
Assigned to LUMMUS TECHNOLOGY LLC, Bloomfield, NJ (US)
Filed by LUMMUS TECHNOLOGY LLC, Bloomfield, NJ (US)
Filed on May 14, 2021, as Appl. No. 17/321,247.
Claims priority of provisional application 63/045,697, filed on Jun. 29, 2020.
Prior Publication US 2021/0404358 A1, Dec. 30, 2021
Int. Cl. F01N 3/02 (2006.01); F01N 5/02 (2006.01); F28D 21/00 (2006.01); F28D 1/04 (2006.01)
CPC F01N 3/0205 (2013.01) [F01N 5/02 (2013.01); F28D 1/0408 (2013.01); F28D 21/001 (2013.01); F24F 2221/54 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A recuperative heat exchanger system, comprising:
a precool section within a first rigid framework, wherein the precool section comprises one or more heat exchangers configured to receive and cool an exhaust gas;
a minor section within a third rigid framework, wherein the minor section comprises a first minor heat exchanger and a second minor heat exchanger;
a first major section within a second rigid framework, wherein the first major section comprises a first major heat exchanger, a second major heat exchanger, and a third major heat exchanger;
a manifold configured to split the cooled exhaust gas from the precool section between a minor stream and a major stream, wherein the minor stream is provided to the minor section and the major stream is provided to the first major section; and
one or more valves configured to balance the split of the cooled exhaust gas to the first major section and the minor section,
wherein the minor section heat exchangers are configured to exchange heat between the minor stream and an oxidant stream,
wherein the major section heat exchangers are configured to exchange heat between the major stream and a recycled CO2 stream, and
wherein the oxidant stream is provided to the precool section after the minor section.