Sharif Digital Repository

The aim of this work was to investigate the performance of different kinds of Linde type A zeolite (LTA) for the dehydration of Tetrahydrofuran (THF)-water solution. Batch experiments were carried out to evaluate the effect of various operating parameters such as contact time, initial concentration, mixing temperature (10, 15,and 25 C), amount of adsorbent, and zeolite type(3A, 4A, and 5A zeolites). In theoretical studies, we took the advantage of several types of equilibrium model isotherms such as Langmuir, Freundlich, Dubin-Kaganer-Radushkevich (DKR) to describe the experimental adsorption data. Besides, three adsorption kinetic models including pseudo-first-order, pseudo-second-order,... 

In this project, in search of localization and synthesis of adsorbent for nitrogen purification in Pressure Swing Adsorption (PSA) units, studies have been carried out where after the finalized analysis around the choice of the adsorbent for synthesis and unit design, CMS has been choosen. Despite the lower selectivity compared to zeolite adsorbents in absorbing and separating oxygen from nitrogen, this adsorbent has been used as the first adsorbent in the industrial gas production industry due to higher nitrogen recovery and lower nitrogen absorption after economic studies in this field. In these days you can find few companies that use zeolite adsorbents to make nitrogen generators....