Yonsei University · Engineering
Professor Masoud Mofarahi's research lab specializes in adsorption-based separation technologies and carbon capture materials, with a strong focus on zeolites and amine-based solvents for CO₂ and gas mixtures (e.g., CO₂/N₂, CH₄/N₂, O₂/N₂). The lab conducts experimental and thermodynamic studies on adsorption isotherms, pressure swing adsorption (PSA) processes, and solvent-based capture systems, emphasizing material characterization, process optimization, and energy efficiency. Key research directions include the development and application of advanced adsorbents like 13X, 5A, and 4A zeolites for sustainable gas separation and carbon dioxide mitigation in flue gases and natural gas streams.
Figures are computed from collected data and may differ slightly.
This study focused on comprehensive synthesis and analysis for CO2 adsorption of the widely used zeolites 13X, 4A, 5A, and beta. Zeolites were synthesized utilizing the hydrothermal method. We paid special attention to the characterization of synthesized zeolites. The most common instrumental analysis techniques, including X-ray diffraction (XRD), scanning electron microscopy (SEM), the Brunauer–Emmett–Teller (BET) method, thermogravimetric analysis (TGA), differential thermal gravimetry (DTG),
An overview on the experimental works for obtaining <italic>K</italic><sub>GCO2</sub><italic>a</italic><sub>V</sub> for low- and high-pressure absorption packed columns.
To implement an experimental study of CH4/N2 adsorption on Zeochem Co. zeolite 13X, a volumetric apparatus was utilized. In this regard, pure adsorption isotherms were measured at different temperatures [(273, 283, 303, 323, and 343) K] and pressures up to 10 bar, while binary data were collected at (303 and 323) K and different pressures and bulk gas phase molar fractions. Integral and differential thermodynamic consistency tests (TCT) were performed to validate the collected data and certify a
A study on a four-bed seven-step pressure swing adsorption (PSA) using zeolite 5A was performed experimentally and theoretically for separation of oxygen from air. In this process the steps of feed pressurization, production, blowdown, purge, pressure equalization (two steps), and product pressurization are included in a cycle. The effects of various operating parameters such as adsorption pressure, cycle time, production rate, and purge rate on the product purity and recovery were investigated
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