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PP-II-37ZEOLITES IN THE GAS PURIFICATION PROCESSES:INVESTIGATION AND SIMULATIONPrymyska S. 1 , Beznosyk Yu. 1 , Reschetilowski W. 21 National Technical University of Ukraine (KPI), 03056 Kyiv, Ukraine,primiska@rambler.ru, prymyska@ukr.net2 Institut für Technische Chemie, TU Dresden, 01062 Dresden, Germany,wladimir.reschetilowski@chemie.tu-dresden.deINTRODUCTIONThe harmful effects of nitrogen oxides on the environment have initiated intensiveresearch for the design of efficient techniques for their abatement from stationary andmobiles sources. NO x is the major atmospheric pollutant which is responsible forphotochemical smog and acid precipitation problems. In contrast to the selectivecatalytic reduction of nitrogen oxides which is the good established method to reduceNO x emissions, adsorption of NO x is an alternative method which is especiallyeffective for the concentrated removal of low concentrations of NO x [1]. Adsorption ofNO x using zeolites has been an important research topic for the development oftransport and stationary exhaust treatment systems [2]. In order to model thedynamics of the adsorption of nitrogen oxide on zeolites, the basic informationrequired is the adsorption equilibrium isotherm of the pure components.INVISTIGATIONAdsorption of NO x has been experemantaly studied on various molecular sievesusing the mass spectrometric method to determine the potential for separation ofthese common atmospheric contaminants from air. The molecular sieves studiedinclude KA zeolite, 13X zeolite and LiLSX zeolite. The granular adsorbent (1.6-2.5mm size; 35 g) was packed into the adsorber consisting of a vertical heatable glasstube. The adsorption and desorption experiments have been performed at varyingtemperatures and gas flow rates of 25, 30, …,50°C and 5, 10, 15 l/h, respectively.Equilibrium isotherm were produced in order to quantify sorbate capacity undervarious conditions. For the certain equipment, the main parameters (the gas flowrate, the weight of adsorbent, the temperature) were determined.SIMULATIONIn the isothermal adsorption systems the equilibrium relationship between theadsorbent and adsorbate can be characterized by single curve or isotherm, where400