Preparation of zeolite types 4A and 5A from Iraqi kaolin to remove sulfur and water from LPG


In this work the 4A and 5A types of zeolite were prepared from locally available materials and characterized by X-ray diffraction and atomic absorption techniques .The prepared zeolites were used to remove H2S and to dry water from liquefied petroleum gas LPG using adsorption technique. The adsorption was investigated using flow method which was performed in laboratory adsorption unit made from stainless steel. The results obtained from column adsorption process was fitted with the most commonly used model (Adams-Bohart model) to describe adsorption data. Zeolite 5A was the most effective adsorbent for H2S (90% removal) compared with standard zeolites used in the North Oil Company (Beji- Iraq).