| CPC F02M 26/09 (2016.02) [F02D 41/0077 (2013.01); F02D 41/1454 (2013.01); F02M 26/05 (2016.02); F02M 26/34 (2016.02)] | 20 Claims |
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1. A gas compression system comprising:
a gas compressor comprising a compressor rod, a piston mechanically coupled to the compressor rod, and an interior chamber, wherein the gas compressor is configured to:
receive a process gas at a first pressure;
pressurize the process gas in the interior chamber by compressing the process gas via the piston in response to actuation of the compressor rod; and
output the process gas at a second pressure higher than the first pressure;
an internal combustion engine mechanically coupled to the gas compressor and configured to actuate the compressor rod of the gas compressor and to generate an exhaust gas during the actuation of the compressor rod; and
a packing case disposed around the compressor rod and mechanically coupled to the gas compressor, wherein a first side of the packing case is fluidly coupled to the interior chamber, and wherein the packing case is configured to receive the exhaust gas and to direct the exhaust gas to counter a flow of the process gas through the packing case from the interior chamber.
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15. A method comprising:
actuating a compressor rod of a gas compressor such that a process gas is pressurized within a chamber of the gas compressor, wherein the compressor rod extends from the chamber and through a packing case coupled to the gas compressor;
generating, via combustion, exhaust gas; and
supplying the exhaust gas to the packing case such that the exhaust gas permeates:
through the packing case;
around the compressor rod; and
into the chamber, out a vent passage of the packing case, or both.
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20. A gas compressor comprising:
a housing having an interior chamber, an intake to the interior chamber, an outlet from the interior chamber, and a compressor rod orifice;
a piston configured to actuate within the interior chamber and operatively motivate a first flow of a process gas from the intake to the outlet;
a compressor rod mechanically coupled to the piston within the interior chamber and extending out of the interior chamber through the compressor rod orifice, wherein actuation of the compressor rod actuates the piston; and
a packing case coupled to and sealed against the housing, wherein the compressor rod extends through an interior of the packing case, wherein the packing case is configured to receive and direct a purge gas into the interior of the packing case at a first pressure higher than a second pressure within the interior chamber of the housing to reduce a second flow of the process gas from the interior chamber through the interior of the packing case, wherein the purge gas is an exhaust gas from a hydrocarbon combustion process.
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