ΜΟΝΤΕΛΟΠΟΙΗΣΗ ΤΗΣ ΠΥΡΟΛΥΣΗΣ ΛΙΓΝΟΚΥΤΤΑΡΙΚΩΝ ΥΛΙΚΩΝ

THE PYROLYSIS OF VARIOUS LIGNOCELLULOSIC MATERIALS WAS STUDIED IN ORDER TO MODELIZE THE KINETICS OF BOTH PRIMARY AND SECONDARY REACTIONS AS ALSO TRANSPORT PHENOMENA. MODELLING WAS BASED ON EXPERIMENTAL DATA OBTAINED BY MEANS OF THERMAL ANALYSIS TECHNIQUES. THE MODEL OF INTERMEDIATE STEP COMPOSITION IS CORRELATED TOTHE PYROLYSIS RATE BY MEANS OF A SIMPLE ADDITIVE MODEL. USING BOTH THE ADDITIVE MODEL AND THE MODEL OF INTERMEDIATE STEP IT IS POSSIBLE TO PREDICT THE PYROLYSIS RATE OF DIFFERENT LIGNOCELLULOSIC MATERIAL UNDER DIFFERENT HEATING CONDITIONS. A MODEL INVOLVING ALSO THE SECONDARY INTERACTIONS BETWEEN CHARCOAL AND VOLATILES WAS SUGGESTED. THE TRANSPORT PHENOMENA AND THE CHEMICAL REACTIONS ARE DESCRIBED BY MEANS OF A GENERAL MODEL INVOLVING THE HEAT TRANSMISSION BALANCE IN APYROLYZING SOLID PARTICLE AND THE EQUATION OF PYROLYSIS RATE. THE HEAT BALANCEINCLUDES A TERM, WHICH REPRESENTS THE HEAT FLOW DUE TO REACTION HEAT. THE HEATOF THE PYROLYSIS REACTIONS CAN BE REPRESENTED BY TWO VALUES: AN ENDOTHERMIC ONE (FOR LOW CONVERSION) AND AN EXOTHERMIC ONE (FOR HIGH CONVERSION).

Grantor dc:publisher

Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ)

Year dc:date

1989

Authors dc:creator

• Κουφοπάνος, Χαράλαμπος
• Koufopanos, Charalambos

• Biomass
• BIOMASS PYROLYSIS
• HEAT TRANSFER MODELS
• KINETIC MODELS
• Lignocellulosic materials
• RENEWABLE FORMS OF ENERGY
• THERMOCHEMICAL CONVERSION OF BIOMASS
• ΑΝΑΝΕΩΣΙΜΕΣ ΜΟΡΦΕΣ ΕΝΕΡΓΕΙΑΣ
• Βιομάζα
• ΘΕΡΜΟΧΗΜΙΚΗ ΜΕΤΑΤΡΟΠΗ ΒΙΟΜΑΖΑΣ
• ΚΙΝΗΤΙΚΑ ΜΟΝΤΕΛΑ
• ΛΙΓΝΟΚΥΤΤΑΡΙΝΙΚΑ ΥΛΙΚΑ
• ΜΟΝΤΕΛΑ ΜΕΤΑΦΟΡΑΣ ΘΕΡΜΟΤΗΤΑΣ
• ΠΥΡΟΛΥΣΗ ΒΙΟΜΑΖΑΣ
• Engineering and Technology
• Chemical Engineering
• Επιστήμες Μηχανικού και Τεχνολογία
• Επιστήμη Χημικού Μηχανικού

Language dc:language

gre

Identifier

10.12681/eadd/1197

OAI identifier oai:identifier

oai:10442/1197