By R. Zarzycki, A. Chacuk and J.M. Coulson (Auth.)
This booklet offers a pragmatic account of the trendy idea of calculation of absorbers for binary and multicomponent actual absorption and absorption with simultaneous chemical response. The booklet comprises elements: the idea of absorption and the calculation of absorbers. half I covers uncomplicated wisdom on diffusion and the speculation of mass move in binary and multicomponent platforms. major rigidity is laid on diffusion thought simply because this kinds the foundation for the absorption method. within the subsequent chapters the basics of simultaneous mass move and chemical response, the idea of the desorption of gases from drinks and the formula of differential mass balances are mentioned. half II is dedicated to the calculation of absorbers and the category of absorbers. The chapters current calculation tools for the fundamental sorts of absorber with an in depth research of the calculation tools for packed, plate and bubble columns. The authors illustrate the offered fabric with lots of examples, beginning with uncomplicated ones for binary structures and finishing with column calculation for multicomponent systems.
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Additional info for Absorption. Fundamentals & Applications
1 sulfide Air Carbon 3 14. 3 25. 6 Nitrogen, bound xlO 31. 2 23 . 8 Chlorine, C l 2 Bromine, Iodine, Br I 48. 2 71.. 7 S 25.. 7 Ethanol 62,. ,6 Br 27 .. ,0 All calculation methods discussed so far fail in the case of dense gases, that is at high pressures or low temperatures. In DIFFUSION 45 dense gases collisions of more than two molecules play an important role, and the sizes of gas molecules can be compared with their mean free path. The solution of diffusion problems in dense gases by means of a method analogous to the Enskog-Chapman method, although theoretically possible, encoiinters serious mathematical obstacles.
97 Xl0' A where factor 1 6 „-l/3 , „ „ A „-15 B A w 1 S V B B A Αβ is the association parameter for associated solvents, I is the interaction parameter for polar solutes, S S_ shape are the 55 factors for paraffins, and Q is the and quantum correction factor for light gases. Correction factors for various compounds are presented in Table 3-6. Molar volumes V and V A Table 3-6. 223 substances. 2 K. 065 for gases. Equation (3-80) can be applied to the diffusion of gases, liquids and solids in liquid solvents and in dilute nonelectrolyte solutions.
31 heterocyclic 0 6.. 8 For those chemical compounds for which it is difficult to determine special diffusion volumes and using the Enskog-Chapman equation is impossible, the Arnold formula is recommended (3-71) In this formula V is the molar volume of component i at its normal S 1 boiling point (Table 3-4). V . ) si S . 76 ( y l 1/2 s j ' /3 (3-72) .... SI SI Table 3-4. 4 Nitric 8,. 1 sulfide Air Carbon 3 14. 3 25. 6 Nitrogen, bound xlO 31. 2 23 . 8 Chlorine, C l 2 Bromine, Iodine, Br I 48. 2 71..