Hydrocarbon Compression

Process Cooling Excessive Gas Inlet Temperature

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There are three factors which increase an air cooler’s inlet temperature:
• The compressor valves are faulty.
• The compression ratio has increased.
• High pressure, high temperature natural gas is being produced from the wellhead.

heat transfer surface area) a 10°F increase in compressor discharge temperature may increase the air cooler outlet temperature by 5-8°F.  “Troubleshooting Reciprocating Compressors.” Temperature rises above those obtained from this correlation indicate bad compressor valves (plates or springs broken) or, less commonly, leakage across the piston rings in a double-acting cylinder.

Depending on the compression ratio, a 10°F increase in the compressor inlet pressure will translate into a considerably larger increase in compressor discharge temperature. Thus, it is conceivable that the cooler outlet temperature may increase due to the effect of putting high temperature wells on line.

Written by Jack

October 25th, 2009 at 12:29 pm