Determination of Carbon Dioxide, Ethane And Nitrogen in Natural Gas by Gas Chromatography
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Determination of Carbon Dioxide, Ethane ...
Determination of Carbon Dioxide, Ethane
And Nitrogen in Natural Gas by Gas Chromatography
1 SCOPE AND FIELD OF APPLICATION
This document is a method for the determination of carbon dioxide, ethane and nitrogen in natural gas in the range 0-10% v/v.
The gas sample will be injected automatically by a ten port valve onto the poraplot U column. The nitrogen will elute first and be switched to the mole sieve column. The mole sieve column will be isolated and the poraplot column will elute the carbon dioxide and ethane via a restrictor column to the detector. After the elution of the carbon dioxide and ethane the poraplot column will be back flushed. Then the nitrogen will be allowed to elute from the mole sieve column (see figure 1.) ...
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