Physico-chemical Treatment of Commercial Active Carbon for Its Utilize in Adsorption Cooling System

摘要

Methanol adsorption of the active carbon seems to be very interesting for use in thermody-namic systems such as heat pumps and transformers as well as cooling systems. The porous structure of commercial active carbon modified by successive removal of external layers from a particle surface as produced by abrasion in a spouted bed and by demineralisation was evaluated on the basis of the nitrogen adsorption data and those for methanol. The modifications improve densimetric characteristics and heat effects of methanol adsorption. Porous structure parameters obtained for nitrogen and methanol agreed reasonably well and Dubinin-Radushkevich approach can be useful method for characterisation of these systems. The methods for calculation of heat effects of methanol adsorption in wide range of temperature and pressures are discussed.