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Title: MEASURING HYDROCARBON DEW POINT
Author: Sohrab Zarrabian
Source: 2017 American School of Gas Measurement Technology
Year Published: 2017
Abstract: Hydrocarbon Dew Point (HDP) remains one of the key quality parameters of natural gas streams. Its determination is needed for operational and safety considerations, as well as to satisfy tariffs and regulations in US and overseas pipeline operations. The recent development of shale gas in US has added to the need for accurate and consistent measurement of HDP across a range of different mixtures of natural gas. Theoretical methods for prediction of natural gas have been used in the past, but have been shown to have significant errors associated with them1. In general, theoretical methods using GC component analysis and EOS models have too much error to be useful. Direct measurements, using a chilled-mirror, continue to remain the preferred method for measurement of HDP.

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