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A compression intensified thermodynamic gas process that includes a compressor rotor having a series of passage forming blades between which a process gas is conducted during compression. A coolant metering system is contained within the rotor structure which is arranged to introduce a liquid coolan

A compression intensified thermodynamic gas process that includes a compressor rotor having a series of passage forming blades between which a process gas is conducted during compression. A coolant metering system is contained within the rotor structure which is arranged to introduce a liquid coolant directly into the gas flow as the gas is being compressed. Coolant nozzles are strategically positioned throughout the rotor so that coolant droplets that are introduced into the flow stream will pass freely out of the rotor without impacting the rotor blades.

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A high efficiency compressor for use in a compression intensified gas process that includes: an impeller having a series of radially extending blades affixed thereto that coact to form flow passages therebetween through which a process gas is conducted during the compression process; each blade havi

A high efficiency compressor for use in a compression intensified gas process that includes: an impeller having a series of radially extending blades affixed thereto that coact to form flow passages therebetween through which a process gas is conducted during the compression process; each blade having a front face and a back face and a blade tip; a driveshaft for rotating the impeller at a speed sufficient to compress the process gas conducted through said flow passages; each flow passage having a suction side and a pressure side; a coolant supply channel that passes axially through said shaft; a first coolant metering circuit passing radially outward through each of said impeller blades such that said first circuit communicates at said blade radially inner end with said supply channel and at said blade radially outer end with a first nozzle for introducing a coolant into one of said flow passages; each of said first nozzles positioned in said back face of said associated blade to discharge coolant into said suction side of an adjacent passages so as to transverse said flow passage, said first nozzles further sized and positioned to substantially avoid discharged liquid coolant from impinging on said blades and to cool the process gas in said flow passages; and a coolant supply means for introducing a liquid coolant into the said supply channel whereby coolant is metered through the said first circuit as said impeller rotates.