ΠΑΡΑΓΩΓΗ ΑΙΘΥΛΕΝΙΟΥ ΜΕ ΚΑΤΑΛΥΤΙΚΗ ΑΤΜΟΠΥΡΟΛΥΣΗ Κ-ΕΞΑΝΙΟΥ

IN THIS THESIS IT WAS STUDIED THE PRODUCTION OF ETHYLENE IN THE PRESENCE OF CATALYSTS VIA STEAM CRACKING OF N-HEXANE. VARIOUS TYPES OF CATALYSTS WERE PREPAREDAND TESTED IN AN EXPERIMENTAL PYROLYSIS UNIT. THE CATALYST SAMPLE WITH THE COMPOSITION 12CAO7AL2O3 SHOWED THE HIGHEST SELECTIVITY IN RELATION TO ETHYLENE PRODUCTION. THE EFFECT OF CALCINATION TEMPERATURE IN CATALYST PERFORMANCE WAS ALSOSTUDIED AND IT WAS POINTED OUT THAT TEMPERATURES HIGHER THAN 1100 C ARE ESSENTIAL FOR THE NEGLIGIBLE COKE AND CO, CO2 PRODUCTION. THE EFFECT OF OPERATING VARIABLES WAS STUDIED. IT WAS FOUND THAT THE CATALYTIC ACTION IS DUE TO PEROXIDIC OXYGEN THAT IS PRESENT. IN THE CRYSTAL PHASE OF THE CATALYST. A SIMPLIFIED FIRST ORDER MODEL WAS USED TO DESCRIBE THE OVERALL DECOMPOSITION REACTION OF N-HEXANE. A MECHANISTIC MODEL WAS PROPOSED FOR THE SIMULATION OF N-HEXANE THERMAL ANDCATALYTIC CRACKING. THE REACTION THEME ADOPTED INCLUDES 92 REACTIONS (88 ELEMENTARY AND 4 MOLECULAR). THE MODEL WAS SUCCEEDED IN PREDICTING ALL THE PRODUCT DISTRIBUTION AT VARIOUS OPERATING CONDITIONS.

Grantor dc:publisher

Aristotle University Of Thessaloniki (AUTH)

Year dc:date

1990

Authors dc:creator

• Λεμονίδου, Αγγελική
• Lemonidou, Angeliki

• ΑΙΘΥΛΕΝΙΟ-ΠΑΡΑΓΩΓΗ
• ΑΤΜΟΠΥΡΟΛΥΣΗ
• ΚΑΤΑΛΥΤΕΣ ΑΡΓΙΛΙΚΟΥ ΑΣΒΕΣΤΙΟΥ
• ΚΙΝΗΤΙΚΗ-ΠΥΡΟΛΥΣΗ
• ΜΗΧΑΝΙΣΤΙΚΑ ΜΟΝΤΕΛΑ
• ΠΥΡΟΛΥΣΗ ΕΞΑΝΙΟΥ
• CALCIUM ALUMINATE CATALYST
• Ethylene production
• HEXANE PYROLYSIS
• Kinetics
• Mechanistic models
• STEAM CRACKING
• Επιστήμες Μηχανικού και Τεχνολογία
• Επιστήμη Χημικού Μηχανικού
• Engineering and Technology
• Chemical Engineering

Language dc:language

gre

Identifier

10.12681/eadd/1686

OAI identifier oai:identifier

oai:10442/1686