Solubility and diffusivity data for the absorption of carbonyl sulfide, carbon dioxide, and nitrous oxide in amine solutions

R.J. Littel, R.J. Littel, Geert Versteeg, Willibrordus Petrus Maria van Swaaij

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Abstract

Absorption data for COS and N,O in aqueous solutlons of N-methyldiethanolamine (MDEA), ethylene glycol, and sulfolane (tetrahydrothiophene 1,l-dioxide) at 298 K and solubility data for COS in water at temperatures ranging from 298 to 338 K are presented. Also density, viscosity, N,O solubility, and N,O dlffusivity data are reported for a wide range of aqueous aikanolamine solutions, aqueous mlxtures of alkanoiamines, and solutions of MDEA in water/ethanol. It is shown that an analogy between COS and N,O with respect to gas solubility in aqueous solutions of ethylene glycol and sulfolane holds up to about 25 mass %. This seems to justify, for engineering purposes, the application of this analogy for the estimation of COS solubilitles in diluted aqueous amine solutions. Direct verificatlon of a COS-N,O analogy was provided by absorption of N,O and COS into aqueous MDEA solutions in a laminar film reactor.
Original languageEnglish
Pages (from-to)49-55
Number of pages7
JournalJournal of chemical & engineering data
Volume37
Issue number1
DOIs
Publication statusPublished - 1992

Keywords

  • METIS-106053
  • IR-82881

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