Page 16 - Gas Adsorption Equilibria

INTRODUCTION

Abstract This introductory chapter provides some background information of the material to
be presented: experimental methods to measure adsorption equilibria of pure and
mixed gases on inert porous solids. Applications of gas adsorption processes in
science and technology are outlined. An overview of the contents of the book is
given. Remarks on subjects, measurement methods and other fields of adsorption
science which could not be considered within this monography are mentioned. Hints
to respective literature and references are given.

1. INTRODUCTION

Physisorption processes of pure and mixed gases on porous solids are of
growing importance in both science and engineering [0.1-0.3]. This is
reflected – for example – in a growing number of chemical, petrochemical
and biochemical processes including adsorption based separation processes.
As most of these processes today still are driven by the respective adsorption
equilibria, for design of new or up-scaling of laboratory sized processes,
adsorption equilibria data in a broad range of pressure and temperature must
be known. These data are decisive for selection of type, size and number of
adsorption reactors at given gas feed, product specifications and
environmental conditions. As gas adsorption equilibria data up to now cannot
be calculated accurately by theoretical or analytical simulation based models,
it is necessary to measure them, i. e. to determine them by reliably and
accurately performed experiments.

The purpose of this book is to present

a) classical and new experimental methods to measure adsorption
equilibria of
pure gases and
gas mixtures
on inert rigid or deformable porous solids, and