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Title: Chromatograph Applications and Problems from a Users Standpoint
Author: Daniel Tiller
Source: 2018 International School of Hydrocarbon Measurement
Year Published: 2018
Abstract: Natural Gas is sold as Energy. Gas Chromatographs calculate the Energy value of the Gas (as well as other calculated values used in Flow Calculations). When there is only a single Gas Chromatograph (GC) on a Custody Metering station, the downtime for a GC must not only be at a minimum but it should be planned for ahead of time, rather than addressing issues as they arise. It is necessary to create a preventative maintenance program and oversee that it is taking place so that analysis problems are identified before they cause measurement errors. It is necessary to perform maintenance on a predictive basis, rather than being triggered by a measurement issue. This paper will describe the routine preventative maintenance that should be performed on a Gas Chromatograph System, the predictive diagnostics tools that should be used, and finally outline the steps taken to perform an overhaul of the analysis system.




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