US 12,222,147 B2
Trans-critical thermodynamic system and method for removing solutes from fluid
Ian M Bunce, Derby (GB); and Chloe J Palmer, Derby (GB)
Assigned to ROLLS-ROYCE plc, London (GB)
Appl. No. 17/761,429
Filed by ROLLS-ROYCE PLC, London (GB)
PCT Filed Sep. 3, 2020, PCT No. PCT/EP2020/074657
§ 371(c)(1), (2) Date Mar. 17, 2022,
PCT Pub. No. WO2021/058255, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 1913880 (GB), filed on Sep. 26, 2019.
Prior Publication US 2022/0364772 A1, Nov. 17, 2022
Int. Cl. F25B 9/06 (2006.01); F25B 9/00 (2006.01); F25B 43/04 (2006.01)
CPC F25B 9/06 (2013.01) [F25B 9/008 (2013.01); F25B 43/043 (2013.01); F25B 2309/061 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A trans-critical thermodynamic system, comprising:
an expansion device configured to receive a supercritical fluid containing solutes, the expansion device operable to expand the supercritical fluid to produce a sub-critical gas by reducing a temperature and/or a pressure of the supercritical fluid;
a separator configured to remove the solutes from the sub-critical gas;
a high pressure circuit configured for the supercritical fluid to flow therethrough; and
a fluid extraction point operable to extract a portion of the supercritical fluid from the high pressure circuit, wherein the expansion device is operable to expand the portion of the supercritical fluid.