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Modelling of activated carbon desorption by a circulated inert gas
Author(s) -
Jedrzejak Andrzej
Publication year - 1988
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.270110146
Subject(s) - condenser (optics) , inert gas , desorption , activated carbon , adsorption , inert , chemistry , thermodynamics , solvent , process (computing) , carbon fibers , chemical engineering , process engineering , materials science , organic chemistry , engineering , computer science , physics , composite material , light source , composite number , optics , operating system
The adsorption solvent recovery process, known as Recursorb which involves desorption and cooling steps by a circulated inert gas, is analyzed in detail on the basis of equilibrium theory. Employing the method of characteristics, the model is solved for each step of the overall process. The estimations confirm that the process performance with respect to final gas purity, activated carbon useful capacity and operation times depends on condenser and heater temperatures. Simple expressions are derived for the calculation of adsorption, desorption and cooling times.