INFLUENCE ON THE WORK OF ADSORPTION UNITS POLLUTION PROCESSING AIR WITH MOISTURE, CARBON DIOXIDE AND SOME OTHER IMPURITIES

Abstract

Adsorption technologies implemented in the pressure swing adsorption units (PSA), in particular in oxygen and nitrogen plants have found wide application. The separation of gases in these technologies is provided by different adsorption capacity of sorbents of separate the components of the mixture. The various adsorption systems, designed for deep cleaning of air and other gases prior to further processing, are even more common. The long reliable operation of such plants and the preservation of their design parameters is possible only provided to maintain on a certain level of the sorbent adsorption characteristics during the operation. The data issues related with the change during of time work adsorption characteristics of the industrial adsorbents are extremely limited. However, it is known that although the vast number of oxygen and nitrogen PSA-units work with project parameters up to 8-10 years without replacing the adsorbent there has been cases poor operation of such systems through a very short period of time after putting into operation and sometimes even immediately after commissioning works.