Automatic hydrocarbon dewpoint monitor Ensuring safe natural gas transportation New automatic monitoring technique prevents the liquefaction of natural gas in transportation pipelines. The Challenge Natural gas is a complex mixture of hydrocarbons and other species (nitrogen, carbon dioxide etc). The main components are usually methane and ethane but also with a proportion of higher hydrocarbon (C6+) species. The gas is extracted from the ground and transported by pipeline to where it will be used. Depending on the pressure, temperature and composition of the gas, hydrocarbon liquids may separate out in the pipeline. The point at which this occurs is known as the hydrocarbon dewpoint. This can lead to problems such as monitoring meters filling with liquid or damage to components, and in th

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