Comparative Methods for Gas Diffusivity and Solubility Determination in Extreme Media: Application to Molecular Oxygen in an Industrial Chlorine−Soda Electrolyte - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Industrial and engineering chemistry research Année : 2000

Comparative Methods for Gas Diffusivity and Solubility Determination in Extreme Media: Application to Molecular Oxygen in an Industrial Chlorine−Soda Electrolyte

Résumé

Low-solubility-gas mass-transfer parameter determination has been achieved using conventional, and nonconventional, electrochemical, or predictive calculation methods. The methods have been compared for the oxygen diffusivity and solubility determination in alkaline media. Their validation has been fulfilled in the case of 1 M NaOH at 25 °C. Their use for membrane chlorine−soda process industrial electrolytes, 11.1 M (33 wt %) NaOH at 25 and 80 °C, has then been undertaken, leading to DO2(80 °C) = 2.54 × 10-9 m2 s-1 and He-1(80 °C) = 1.17 × 10-7 mol m-3 Pa-1, which is 72 times lower than that in 1 M NaOH at 25 °C.

Domaines

Matériaux

Dates et versions

hal-00418265 , version 1 (17-09-2009)

Identifiants

Citer

Marian Chatenet, Marc Aurousseau, Robert Durand. Comparative Methods for Gas Diffusivity and Solubility Determination in Extreme Media: Application to Molecular Oxygen in an Industrial Chlorine−Soda Electrolyte. Industrial and engineering chemistry research, 2000, 39, pp. 3083-3089. ⟨10.1021/ie000044g⟩. ⟨hal-00418265⟩
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