January 2015

Special Report: LNG, NGL and Alternative Feedstocks

Optimize amine sweetening with an optical O2 analyzer

After extraction, raw natural gas must go through processing before it is suitable for industrial, commercial and residential usage. The first stage of gas processing is known as “sweetening,..

Hammond, S., Barben Analytical

After extraction, raw natural gas must go through processing before it is suitable for industrial, commercial and residential usage. The first stage of gas processing is known as “sweetening,” where hydrogen sulfide (H2S) and carbon dioxide (CO2) are removed through exposure to amines (Fig. 1).     Fig. 1. In gas sweetening, H2S and CO2 are removed   through exposure to amines. Here, the negative effects of entrained oxygen (O2) on the amine sweetening process are examined, and the use of an optical O2 analyzer as a measurement solution is explored. Gas contaminants Purified, or “pipeline-quality,” natural gas typically consists of 95% m

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