Quantitative On-line-Konzentrationsmessung in Flüssig/Gas-Gemischen bei erhöhten Drücken und Temperaturen mit Raman-Spektroskopie

Abstract

P r o f. D r. -I n g . S. R i p p e r g e r 1 ) D r. -I n g . J. A l t m a n n 2 )

Measurement of sorption phenomena near dew points of fluid mixtures: concept for the combination of gravimetric sorption analysis and Raman spectroscopy

“…Thus, they cannot answer the question if Raman spectr oscopy is applicable for investigations in the vicinity of the dew line. The closest resemblance to such studies can be found in the investigations of Stratmann and Schweiger [17,18]. They investigated fluid-phase equilibria of ethanol and carbon dioxide (CO 2 ) utilizing Raman spectroscopy.…”

“…This includes measurements in polluted air [9], combustion gases [10][11][12], motor exhaust gases [13], fusion fuel gas processing [14] and vapor mixtures [15]. Binary mixtures have also been investigated to derive their composition and density from their spectra or to track fluid-phase equilibria [16][17][18]. More recently, investigations focused on the development of multicomponent gas analyzers, e.g., for natural gas and biogas, spatially resolved methods and solubility measurements in supercritical fluids [19][20][21][22][23][24][25][26][27][28][29][30].…”