US 12,442,317 B2
Heat integration
Björn Hardarson, Reykjavik (IS); Ólafur Hrafn Björnsson, Reykjavík (IS); Emeric Sarron, Paris (FR); and Armen Eduardo Kodjaian, Buenos Aires (AR)
Assigned to CRI, HF, Kopavogur (IS)
Filed by CRI, HF, Kopavogur (IS)
Filed on Aug. 27, 2024, as Appl. No. 18/816,961.
Application 18/816,961 is a continuation of application No. 18/161,297, filed on Jan. 30, 2023, granted, now 12,098,657.
Claims priority of provisional application 63/305,392, filed on Feb. 1, 2022.
Prior Publication US 2024/0418105 A1, Dec. 19, 2024
Int. Cl. F01K 23/06 (2006.01); F01K 7/38 (2006.01); F01K 9/00 (2006.01)
CPC F01K 23/064 (2013.01) [F01K 7/38 (2013.01); F01K 9/00 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A system for heat integration between (i) a partner plant which generates steam or another working fluid and (ii) a chemical synthesis plant which produces heat from an exothermic reaction, the system comprising:
a steam or other working fluid generator associated with the partner plant;
a turbine associated with the partner plant, the turbine being configured to receive steam or other working fluid from the steam or other working fluid generator;
a condenser associated with the partner plant, the condenser being configured to receive spent steam or other working fluid from the turbine and to cool and/or condense the spent steam or other working fluid;
a water pre-heater, associated with the partner plant, the water pre-heater being configured to receive the condensed steam or other working fluid from the condenser; and
one or more bleed streams from the turbine;
wherein a first bleed stream of the one or more bleed streams from the turbine is fed to a heat exchanger of the chemical synthesis plant where heat from the first bleed stream is used by the chemical synthesis plant to heat a bottoms condensate fraction from a distillation column in a reboiler associated with said distillation column, the heat exchanger returning a cold stream to the water pre-heater associated with the partner plant, wherein the reboiler is configured to obtain heat, directly or indirectly, from the exothermic reaction conducted within a reactor of the chemical synthesis plant; and
wherein a second bleed stream of the one or more bleed streams from the turbine is fed to the water pre-heater and is of a lesser flow rate than would be required if the heat exchanger of the chemical synthesis plant did not return a cold stream to the water pre-heater associated with the partner plant.