D. Bogoya M., C. Müller, I. Q., L. R. Oellrich
Abstract
The actual knowledge of the exact water content in saturated gas mixtures still is incomplete, especially in the high pressure and low temperature region. Hence, dew point measurements with nitrogen water and methan-water mixtures were performed, at pressures of 3 and 6 MPa and temperatures from 258 K to 288 K. The dew points were determined with the dew point mirror method and the water content by means of the Karl-Fischer-titration. The experimental values were compared to correlations from the literature. The approach by Sharma-Campbell resulted in the best description of the system nitrogen water. For temperatures below 273 K the assumption of ideal behavior proved to be sufficient for the system methan-water, whereas for temperatures above 273 K calculations with the two-parameter corresponding states principle in combination with a fugacity correction turned out to be the best.
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