OP-II-3

PP-II-37the solid phase solute concentration is a function of the gaseous phase soluteconcentration characterized by the mass balance in the gas and solid phase [3]. Aone-dimensional fixed bed model is derived from the mass balance in gas and solidphase [4], with the following assumptions: no temperature gradients and noconcentration gradients in a bed section perpendicular to gas flow direction, theregime is isothermal; there is no deactivation of the adsorbent during theexperiments.dуout,idt2RT⎡ FP=t⎢ ( уin,i − уout,i ) − k ⋅ yi⋅θV, i ⋅ q0⋅ wiεV P ⎣ RTit⎤⎥⎦dF PtM NO yθ , ух,( tiV i = in is − ∑ dt)dt RT уt s0 in,iwhere F is the gas feed rate, y in , y out are the inlet and outlet mole fractions ofadsorbate, P t is the total pressure, R is the gas constant, T is the temperature, yiisthe average gas mole fraction in the i layer, V i and w i are the volume and the weightof the layer, ε is the void fraction, k is the rate constant, q 0 is the saturation amount ofnitrogen oxide per unit weight of adsorbent.For calculating the model of the adsorption process on agglomerated zeolite, theprogram package ZEOAD was developed. This program permits to calculate thechanging of the initial concentration of nitrogen oxides depending on time. Also, onecan get breakthrou curves under different specific parameters.References[1]. M.A. Go.mez-Garcı, V. Pitchon, A. Kiennemann Pollution by nitrogen oxides: an approach to NOxabatement by using sorbing catalytic materials // Environment International 31 (2005) pp. 445– 467.[2]. John D. Sherman Synthetic zeolites and other microporous oxide molecular sieves Proc. Natl.Acad. Sci. USA Vol. 96, pp. 3471–3478, March 1999.[3]. Statyukha G., Prymyska S., Beznosyk Yu., Reshetilowski W. Simulation the adsorption process ofnitrogen oxides in zeolites. // 35rd International Conference of Slovak Society of ChemicalEngineering, 26-30 may 2008, Tatranske Matliare, Slovakia. pp. 97 – 99.[4]. Statyukha G, Prymyska S., Beznosyk Yu. Computer designing the adsorption process of nitrogenoxides in zeolite. // 18 th Intern. Congress of Chemical and Process Engineering, August 2008,Praha. – CHISA 2008.401