A Triple-Port High-Pressure Volumetric Sorption Analyzer: Calibration, Measurements, and Uncertainty Analysis for Refrigerant Blend Separation Applications
Gensheng Lin, Panpan Liu, Markus Richter, Xiaoxian Yang
TL;DR
A high-pressure sorption analyzer was developed to test materials for separating refrigerant blends, showing that certain zeolites effectively isolate R-32 from mixtures.
Contribution
A novel triple-port sorption analyzer was developed and validated for refrigerant blend separation applications.
Findings
Zeolite samples showed higher R-32 adsorption capacity compared to other refrigerants.
Köstrolith 4ABFK exhibited the highest selectivity for R-32 separation.
Metal–organic frameworks and activated carbon were less effective for refrigerant separation.
Abstract
A triple-port automatic high-pressure volumetric sorption analyzer was set up for sorption measurements over the temperature range of (273.15–368.15) K and pressures up to 10 MPa. The main function of this apparatus is to rapidly screen porous materials for the separation of a specific gas mixture by measuring adsorption isotherms. Measurements with empty sample containers were carried out to evaluate potential systematic errors. Validation measurements on commonly studied cases (CO2 adsorption on Zeolite 4A, ZIF-8, and Zeolite 13X) were performed, and the excellent agreement with results of literature indicates the high reliability of the measurement system. A comprehensive uncertainty analysis was carried out to determine the uncertainty of measurement results and to propose future improvements of the system. Later, the measurement system was applied to screen suitable materials for…
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Taxonomy
TopicsCarbon Dioxide Capture Technologies · Adsorption and Cooling Systems · Phase Equilibria and Thermodynamics