Abstract: A system includes a rotary isobaric pressure exchanger (IPX) configured to exchange pressures between a first fluid and second fluid. The rotary IPX includes a first end cover including a first fluid aperture configured to route the first fluid. The rotary IPX also includes a first piston integral with the first end cover. The first piston includes a first hydraulic path configured to route the first fluid to or from the first fluid aperture.

Abstract: A frac system that includes a hydraulic energy transfer system configured to exchange pressures between a first fluid and a second fluid.

Abstract: A system includes a hydraulic energy transfer system configured to exchange pressures between a first fluid and a second fluid. The system also includes a motor system configured to power the hydraulic energy transfer system and a shaft coupling the motor system and the hydraulic energy transfer system. Additionally, the system includes a shaft seal disposed about the shaft. Further, the system includes a pressure compensator configured to reduce a pressure differential across the shaft seal.

Abstract: A system includes an isobaric pressure exchanger (IPX) that includes a housing and a rotor disposed within the housing. The system also includes a rotor advancing tool configured to engage and to move the rotor while the rotor is within the housing. The housing includes an opening that enables the rotor advancing tool to extend through the opening to engage and move the rotor.

Abstract: A system including a frac system with a rotary isobaric pressure exchanger configured to exchange pressures between a first fluid and a second fluid, and a lubrication system configured to lubricate the rotary isobaric pressure exchanger.

Abstract: A system includes a solvent gas processing system having a high pressure reaction vessel configured to remove an acid gas from an untreated feed gas using a solvent in a lean solvent fluid stream. The system includes a high pressure reaction vessel is configured to output a treated clean gas and a first flow of a high pressure fluid stream via a first flow path. The system includes a turbine having a main nozzle, an auxiliary nozzle, and an outlet. The main nozzle is configured to receive a second flow of the high pressure fluid stream from the first flow path via a main flow path. The system includes an auxiliary nozzle valve disposed along an auxiliary flow path. The auxiliary nozzle valve is configured to control a third flow of the high pressure fluid stream into the auxiliary nozzle of the turbine.

Abstract: A system includes an integrated manifold system including multiple isobaric pressure exchangers (IPXs) that each includes a low-pressure first fluid inlet, a high-pressure second fluid inlet, a high-pressure first fluid outlet, and a low-pressure second fluid outlet. The integrated manifold system includes a low-pressure first fluid manifold coupled to each of the low-pressure first fluid inlets and configured to provide low-pressure first fluid to each of the low-pressure first fluid inlets, a high-pressure second fluid manifold coupled to each of the high-pressure second fluid inlets and configured to provide high-pressure second fluid to each of the high-pressure second fluid inlets, a high-pressure first fluid manifold coupled to each of the high-pressure first fluid outlets and configured to discharge high-pressure first fluid, and a low-pressure second fluid manifold coupled to each of the low-pressure second fluid outlets and configured to discharge low-pressure second fluid.

Abstract: A system including a frac system with a hydraulic energy transfer system configured to exchange pressures between a first fluid and a second fluid, and a flush system configured remove particulate out of the hydraulic energy transfer system.

Abstract: Various aspects of the technology provide for reducing noise and vibration in a pressure exchanger for high pressure fluid handling equipment such as a desalination system, by disposing grooves between a seal surface and a port. The groove reduces a hammer effect in moving high pressure fluid to a low pressure port and moving low pressure fluid to a high pressure port. Reduction in the hammer effect, in addition to reducing noise, reduces vibration that can cause deterioration of high pressure fluid handling equipment.

Abstract: A rotating assembly adapted for use in turbines and pumps is provided. The rotating assembly includes a shroud that rotates around a central axis and a disk seated in a recess in the shroud so that the disk rotates with the shroud, the disk being oriented perpendicular to the central axis. The rotating assembly also includes a stationary element in which at least one surface of the disk contacts a fluid so that when the fluid flows under pressure, the surface of the disk resists the generation of drag between the surface and the stationary element of the rotating assembly. A shroud is provided that includes a circular recess with a cavity on an outer perimeter extending away from the fixed assembly. A method of manufacturing a rotating assembly is provided.

Abstract: A system includes an amine gas processing system that includes a contactor configured to remove an acid gas from an untreated natural gas using an amine in a lean amine stream, output a treated natural gas, and output a rich amine stream. The system also includes a regenerator configured to regenerate the amine in the rich amine stream, output the lean amine stream, and output the acid gas. The system also includes an isobaric pressure exchanger (IPX) configured to transfer the rich amine stream from the contactor to the regenerator and to transfer the lean amine stream from the regenerator to the contactor.

Abstract: A system includes an amine gas processing controller that includes one or more tangible, non-transitory, machine-readable media collectively storing one or more sets of instructions and one or more processing devices configured to execute the one or more sets of instructions to operate a contactor to remove an acid gas from an untreated natural gas using an amine in a lean amine, output a treated natural gas, and output a rich amine stream, operate a regenerator to regenerate the amine in the rich amine stream, output the lean amine stream, and output the acid gas, transfer the rich amine stream from the contactor to the regenerator using an isobaric pressure exchanger (IPX), and transfer the lean amine stream from the regenerator to the contactor using the IPX.

Abstract: A rotating assembly adapted for use in turbines and pumps is provided. The rotating assembly includes a shroud that rotates around a central axis and a disk seated in a recess in the shroud so that the disk rotates with the shroud, the disk being oriented perpendicular to the central axis. The rotating assembly also includes a stationary element in which at least one surface of the disk contacts a fluid so that when the fluid flows under pressure, the surface of the disk resists the generation of drag between the surface and the stationary element of the rotating assembly. A shroud is provided that includes a circular recess with a cavity on an outer perimeter extending away from the fixed assembly. A method of manufacturing a rotating assembly is provided.

Abstract: Systems and methods for combined flow control and electricity generation are described. Various embodiments may include an energy recovery device adapted to produce an electric current. At least a portion of the electric current may be used to power a pump. A control system may be adapted to adjust operating parameters of the system to stabilize or maximize the efficiency of the energy recovery device.

Abstract: A system includes an amine gas processing system that includes a contactor configured to remove an acid gas from an untreated natural gas using an amine in a lean amine stream, output a treated natural gas, and output a rich amine stream. The system also includes a regenerator configured to regenerate the amine in the rich amine stream, output the lean amine stream, and output the acid gas. The system also includes an isobaric pressure exchanger (IPX) configured to transfer the rich amine stream from the contactor to the regenerator and to transfer the lean amine stream from the regenerator to the contactor.

Abstract: A system includes an amine gas processing controller that includes one or more tangible, non-transitory, machine-readable media collectively storing one or more sets of instructions and one or more processing devices configured to execute the one or more sets of instructions to operate a contactor to remove an acid gas from an untreated natural gas using an amine in a lean amine, output a treated natural gas, and output a rich amine stream, operate a regenerator to regenerate the amine in the rich amine stream, output the lean amine stream, and output the acid gas, transfer the rich amine stream from the contactor to the regenerator using an isobaric pressure exchanger (IPX), and transfer the lean amine stream from the regenerator to the contactor using the IPX.

Abstract: Vehicles of embodiments of the invention are propelled by an electric motor (DC or AC motor) coupled to one of the vehicle's axles. The electric motor is powered by two or more electrical storage devices (e.g., batteries or battery banks or capacitors). The electrical storage devices are charged by alternators driven by a rotating flywheel. The flywheel is selectively coupled to a different one of the vehicle axles, such that movement of the vehicle (caused by the electric motor) causes the rotation of the flywheel.

Abstract: Vehicles of embodiments of the invention are propelled by an electric motor (DC or AC motor) coupled to one of the vehicle's axles. The electric motor is powered by two or more electrical storage devices (e.g., batteries or battery banks or capacitors). The electrical storage devices are charged by alternators driven by a rotating flywheel. The flywheel is selectively coupled to a different one of the vehicle axles, such that movement of the vehicle (caused by the electric motor) causes the rotation of the flywheel.

Abstract: A hydraulic turbocharger having an outer housing having a first section, a turbine end section and a pump end section. The pump end and turbine end sections are removably secured to the first section. A first cavity being formed between the first section and the turbine end section. A second cavity being formed between the first section and the pump end section. A first insert positioned in the first cavity and a second insert positioned in the second cavity. The first and second inserts being formed have more than one piece and defining a volute passageway in the first and second cavities respectively. The first and second inserts being designed to be capable of being machined to form the volute passageway.

Abstract: Methods for more efficiently carrying out various operations through the use of pressure transfer between streams. The methods are applicable for use in conjunction with a wide range of processes including precipitation reactors (19), subterranean space (49) temperature control systems and exothermic chemical processors (71). Rotary isobaric pressure exchange units (29,55,81) are preferably employed.