Natural gas is booming in the United States and despite several issues around the drilling of shale for the extraction of natural gas, the U.S. is continuing to press forward on the extraction of cheap natural gas due to the improvements in drilling techniques (link to story on CNBC). Another recent piece of news was that the U.S. is planning to export natural gas to the UK within five years!
In the ion chromatography technical note featured in this blog post, chemists at our Sunnyvale Applications Lab in California, used our latest High Pressure Ion Chromatography (HPIC) system (Thermo Scientific Dionex ICS-5000+ HPIC system) which operates continuously at 5000 pso in both analytical and capillary scale formats in combination with our Reagent-Free IC (RFIC) technology for the separations of heat stable salts in amine processing solutions used to treat crude natural gas to remove impurities of carbon dioxide and hydrogen sulphide. It is also essential that the amine waste solutions meet discharge requirements. By the way, the US EPA has also produced this 40-page guide, titled, Exemption of Oil and Gas Exploration and Production Wastes from Federal Hazardous Waste Regulations. [Downloadable PDF])
Technical Note 122: Separation of Heat Stable Amine Salts in Methyldiethanolamine (MDEA) Solutions Using High-Pressure IC, (downloadable PDF) describes the method developed by our researchers to determine the anions in mixtures of both common inorganic anions and heat stable amine salts (fluoride, chloride, nitrate, nitrite, bromide, sulfate, phosphate, acetate, formate, propionate, sulfite, thiosulfate, thiocyanate) added to methyldiethanolamine solutions.
The column used in the method development is one of our anion-exchange columns (Thermo Scientific Dionex IonPac AS11-HC-4µm) which is a high-capacity and high-efficiency column that has been designed for the fast profiling of inorganic anions and organic acid anions.
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The technical note also makes reference to the following application notes for the inorganic anion determinations in environmental and industrial wastewater samples using standard bore and microbore IC and I thought it would save readers some time searching our site if I listed them here:
- Application Note 135: Determination of Inorganic Anions in Wastewater by Ion Chromatography (downloadable PDF)
- Application 138: Determination of Thiosulfate in Refinery and Other Wastewaters (downloadable PDF)
- Application Update 138: Determination of Ethanolamines in Industrial Waters by Cation-Exchange Chromatography (downloadable PDF)
A fascinating bit of news related to natural gas reservoirs: scientists at the Berkeley Lab in California are studying to see if depleted natural gas reservoirs can be re-purposed as geologic carbon sequestration sites!
By the way, do check out our online resource on this high-pressure ion chromatography solution featuring product videos, on-demand webinars, and downloadable technical and application notes.
Let us know if you have any questions on the method featured here in the Comments box below; our experts look forward to hearing from you!