INVESTIGATIONS OF HIS ABSORPTION RATE AND SIMULTANEOUS H2S AND CO2 ABSORPTION RATE IN MIXTURES OF PROPYLENE CARBONATE AND TRIETHANOLOAMINE

A new absorbent for acid gas absorption, propylene carbonate (WP) modi fied by triethanoloamine (TEA), was investigated. The measurements of H2S absorption rate were carried out by the laminar jet technique. It was shown that H2S absorption in propylene carbonate with TEA as an ad ditive can be treated as a physical absorption process. The diffusion coefficient of H2S in the new sorbent was measured in the temperature ranging from 10 to 40 degrees C (283-313 K) and correlated as a functi on of temperature and TEA concentration. The measurements of the rate of simultaneous H2S and CO2 absorption in the new absorbent were also carried out.