Applications

The modern technologies in radio-electronics, cryogenic, laser, space techniques, medicine demand more and more high-purity gases, making more and more strict requirements under the concentration of the micro impurities. The technology of production of high-purity gases demands modern analytical methods both for operative control of the technological process and for quality assurance of raw materials, intermediate and end products.

Parameter monitoring procedure in natural gas amine treatment to remove CO₂ during Liquid Natural Gas (LNG) production differs from analytical algorithms developed for removal processes of sour components (CO₂, H₂S, SO₂, R-SH) from associated gases or from refinery hydrocarbon gases. Both technical approaches include compositional analysis of amines and gas streams at inlet and outlet of an amine treating unit. If mains gas with low concentrations of hydrogen sulphide and other sulphur-containing substances is used as a feedstock, then in the LNG Compressor it is only sufficient to monitor CO₂ content in treated gas. Notwithstanding, in order to monitor parameters of aqueous amine absorption and regeneration processes in the LNG Compressor it is necessary to perform quantitative assays of basic components of unreduced amines – MDEA, piperazine – and identify their salts (carbamates and bicarbonates)