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1. (WO2018226388) HYDRAULIC ENERGY TRANSFER SYSTEM WITH FILTERING SYSTEM
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CLAIMS

1. A system, comprising:

a hydraulic energy transfer system configured to exchange pressures between a first fluid and a second fluid, wherein pressure of the first fluid is greater than pressure of the second fluid; and

a lubrication system coupled to the hydraulic energy transfer system and configured to pump or direct a lubrication fluid into the hydraulic energy transfer system.

2. The system of claim 1, comprising a filtration system coupled to the hydraulic energy transfer system and configured to filter the lubrication fluid before the lubrication fluid enters the hydraulic energy transfer system

3. The system of claim 1, wherein the hydraulic energy transfer system is a rotary isobaric pressure exchanger (IPX) system.

4. The system of claim 1, wherein the first fluid hydraulically acts upon the second fluid to increase the pressure of the second fluid that is driven out of the hydraulic energy transfer system for utilization in a downstream application.

5. The system of claim 1, wherein the lubrication fluid comprises a lubrication fluid supplied by a fluid source external to the hydraulic energy transfer system.

6. The system of claim 1, wherein the lubrication fluid comprises a fraction of the first fluid.

7. The system of claim 6, wherein the filtration system is integrated with a housing of the hydraulic energy transfer system.

8. The system of claim 6, wherein the filtration system comprises a settling filtration system, a centrifugal separation filtration system, or a filtration system disposed within a rotor of the hydraulic energy transfer system.

9. The system of claim 1, comprising a controller programmed to control one or more valves and/or the one or more pumps of the system to selectively route the lubrication fluid based on an operating condition of the system.

10. The system of claim 9, wherein a control algorithm is stored in a memory of the controller and upon execution may modulate flow rates of the first fluid, the second fluid, the lubrication fluid, or a combination thereof, based at least in part on an operating pressure or performance of the hydraulic energy transfer system.

11. The system of claim 1, wherein the lubrication system comprises a dedicated pump to route the lubrication fluid into the hydraulic energy transfer system.

12. A system, comprising:

a hydraulic energy transfer system configured to exchange pressures between a first fluid and a second fluid, wherein pressure of the first fluid is greater than pressure of the second fluid;

a lubrication system coupled to the hydraulic energy transfer system and configured to pump or direct a lubrication fluid into the hydraulic energy transfer system; a filtration system coupled to the hydraulic energy transfer system and configured to filter the lubrication fluid before the lubrication fluid enters the hydraulic energy transfer system;

one or more valves and one or more pumps disposed along fluid flow paths of the system; and

a controller programmed to control the one or more valves and/or the one or more pumps of the system to selectively route the lubrication fluid into the hydraulic energy transfer system based on operating condition of the system.

13. The system of claim 12, comprising one or more sensors disposed along the one or more fluid paths of the system to collect fluid data related to operating condition of the system.

14. The system of claim 12, wherein the fluid data comprises flow rate, flow volume, pressure, temperature, or a combination thereof.

15. The system of claim 12, wherein the lubrication fluid comprises a lubrication fluid that is a fraction of the first fluid, and the lubrication system comprises a dedicated pump to route the lubrication fluid into the hydraulic energy transfer system.

16. The system of claim 12, comprising a temperature control system configured to regulate temperature of the lubrication fluid.

17. A system, comprising:

a hydraulic energy transfer system configured to exchange pressures between a first fluid and a second fluid, wherein pressure of the first fluid is greater than pressure of the second fluid;

a lubrication system coupled to the hydraulic energy transfer system and comprises a dedicated pump to direct a lubrication fluid into the hydraulic energy transfer system;

a filtration system coupled to the hydraulic energy transfer system and configured to filter the lubrication fluid before the lubrication fluid enters the hydraulic energy transfer system, wherein the lubrication fluid comprises a fraction of the first fluid or a fluid from a fluid supply source external to the hydraulic energy transfer system; and a controller programmed to control one or more valves and/or one or more pumps disposed along fluid flow paths of the system to selectively route the lubrication fluid into the hydraulic energy transfer system based on an operating condition of the system.

18. The system of claim 17, wherein the controller is programmed to control the one or more valves, the one or more pumps, or a combination thereof, to route the lubrication fluid to cool one or more heated regions, to heat one or more cold regions of the hydraulic energy transfer system, to lubricate bearings of the hydraulic energy transfer system, or to flush debris or particles from components of the hydraulic energy transfer system.

19. The system of claim 17, wherein the controller is programmed to regulate pressure of the lubrication fluid to be higher or lower than pressure of the first fluid when the lubrication fluid is routed to enter an internal region of the hydraulic energy transfer system.

20. The system of claim 17, wherein the controller is programmed to regulate pressure of the lubrication fluid to be equal to or greater than pressure of the first fluid when the lubrication fluid is routed to merge with the first fluid.