Vapor pressure measurements of bis(hydroxyethyl)piperazine and tris(hydroxyethyl)ethylenediamine
Journal Article
·
· Journal of Chemical and Engineering Data
- Univ. of British Columbia, Vancouver, British Columbia (Canada). Dept. of Chemical and Bio-Resource Engineering
Aqueous solutions of diethanolamine (DEA) are commonly used to remove acid gases (including hydrogen sulfide and carbon dioxide) from natural, refinery, and other industrial gas streams. Vapor pressures of bis(hydroxyethyl)piperazine (BHEP) and tris(hydroxyethyl)ethylenediamine (THEED) were measured in the temperature ranges of (412.65 to 507.15) and (372.55 to 472.35) K using the static and gas saturation techniques, respectively. The experimental data are well represented by the modified Antoine and the integrated Clausius-Clapeyron equations, and their coefficients are reported. The enthalpies of vaporization were found to be (62.76 {+-} 5.33) and (89.96 {+-} 3.91) kJ/mol for BHEP and THEED, respectively.
- OSTI ID:
- 624281
- Journal Information:
- Journal of Chemical and Engineering Data, Journal Name: Journal of Chemical and Engineering Data Journal Issue: 2 Vol. 43; ISSN 0021-9568; ISSN JCEAAX
- Country of Publication:
- United States
- Language:
- English
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