ADVANCEMENTS IN TRACE MOISTURE MEASUREMENT OF DESICCANT DRYER OUTPUT REDUCE VARIOUS OPERATING COSTS IN NATURAL GAS CRYOGENIC PROCESS

摘要

Trace H_2O measurement at desiccant dryer output is crucial for a natural gas processing plant. TDL (Tunable Diode Laser) trace H_2O analyzer has positioned itself as a most desirable analytic technique for this challenging application, due to its superior sensitivity, operation reliability, speed of response, low maintenance and immunity to vapor impurities. This paper describes the analyzer design, system configuration, calibration and validation. Field operation data fully demonstrated that SpectraSensors TDL trace H_2O analyzer has enabled a natural gas processing plant to optimize their processes by reducing dryer regeneration frequency, extending molecular sieve bed life, energy savings, reducing various operational costs and preventing freeze up.