Gas Adsorption Equilibria: Experimental Methods and - download pdf or read online

By Jürgen U. Keller

ISBN-10: 0387235973

ISBN-13: 9780387235974

ISBN-10: 0387235981

ISBN-13: 9780387235981

This publication is meant to provide for the 1st time experimental ways to degree equilibria states of natural and combined gases being adsorbed at the floor of good fabrics. it's been written for engineers and scientists from and academia who're attracted to adsorption established fuel separation methods and/or in utilizing fuel adsorption for characterization of the porosity of stable fabrics.

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Additional info for Gas Adsorption Equilibria: Experimental Methods and Adsorptive Isotherms

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5 nm and at 300 K about 22 Chapter 1 dominating for different types of sorptive gases and ranges of temperature and pressure. Industrial adsorption processes normally are cyclic processes in which adsorption and desorption steps of the sorbent material alterate periodically. 16]. An important quantity to characterize the desorption process is the (molar) enthalpy needed to desorb the leading component either of product or waste – of a gas mixture from the sorbent. 2 some examples of desorption processes and their industrial applications together with typical values of the molar desorption enthalpy are given.

For industrial applications also the monograph by R. 5] wholeheartedly can be recommended. *) Mobil Catalytic Material 41. 30 Chapter 1 1. Basic Concepts 4. 31 CHARACTERIZATION OF POROUS SOLIDS The porosity or pore system of a porous sorbent material can be characterized in many different ways. The most important physical methods and their ranges of application, i. e. 42]. The basic physical principle of all of these methods is the same: one chooses a physical agent, namely a probe or yardstick molecule or atom, or elementary particles like neutrons, protons or photons of different wave length, i.

26]. In view of the abundance of porous materials already available and actual space limitations, here the purpose of this section only can be to provide the *) This surface is usually determined by the amount of adsorbed on the surface of the pores at the boiling temperature of at 1 atm, i. e. 77 K. Experimental data are correlated by use of a special adsorption isotherm due to Brunauer, Emmett and Teller, cp. Chap 7, Sect. 4. From this curve the BET surface is determined assuming the molecules form a monolayer, each molecule occupying an area of Sometimes instead of Ar at T = 87 K is measured.

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Gas Adsorption Equilibria: Experimental Methods and Adsorptive Isotherms by Jürgen U. Keller


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