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Title: Operations Of On-Line Chromatographs
Author: Mark F. Maxwell
Source: 1999 American School of Gas Measurement Technology
Year Published: 1999
Abstract: On-line Chromatographs are commonly used to determine the individual components of a natural gas stream. The individual components are then used to calculate Btu and Specific Gravity. The chromatographic data is combined with flow rate data to calculate a total energy value. The energy value is then used for custody transfer. Accurate chromatograph data is a critical part of the gas measurement process. Because a wide variety of conditions exist, no standard rules can be applied to all installations. Each manufacturer usually supplies documentation regarding equipment installation. The manufacturer instructions should be followed as closely as possible. However, understanding the operation and principles involved allows system optimization for individual field conditions. Planning is an essential element of a successful chromatograph installation.

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