Author/Authors :
niftaliyeva, aysel ankara üniversitesi - mühendislik fakültesi - kimya mühendisliği bölümü, Turkey , güleç, fatih ankara üniversitesi - mühendislik fakültesi - kimya mühendisliği bölümü, Turkey , şimşek, emir h. ankara üniversitesi - mühendislik fakültesi - kimya mühendisliği bölümü, Turkey , güllü, mustafa ankara üniversitesi - fen fakültesi - kimya bölümü, Turkey , karaduman, ali ankara üniversitesi - mühendislik fakültesi - kimya mühendisliği bölümü, Turkey
Title Of Article :
THE METHYLATION KINETICS OF 2-METHYL NAPHTHALENE OVER Cu AND La MODIFIED Y ZEOLITE
Abstract :
2,6-dimethyl naphthalane (2,6-DMN ) is an important dimethyl naphthalene (DMN) which is used in the synthesis of a new polymer polyethylene naphthalate’s (PEN) monomers 2,6-naphthalane dicarboxylic acid (2,6-NDCA). DMN’s are nine isomers and among them 2,6-DMN is the most important one. So far zeolites which have different qualities have been used for 2,6-DMN synthesis. In this work, methylation of 2 methyl naphthalene (2-MN) for synthesis of 2,6-DMN over Cu and La modified Y zeolite (CBV720, surface area=726m²/g SiO2/Al2O3=30), as experimental was intended for the finding of rate expression. In methylation reaction molar ratio of 1:5:5 2-MN:1,3,5 trimethyl benzene (mesitylene): methanol was fed into the reactor. For kinetic experiments, the changing of 2-MN conversion, the formation of 2,6-DMN and 2,6-DMN / 2,7-DMN ratio with different temperature, space velocity and catalyst were researched. For methylation kinetic, the rate expression depending on the 2-MN and methanol concentration was determined. Arrhenius equation was used for calculation of frequency factor (ko) and activation energy (EA).
NaturalLanguageKeyword :
Y Zeolite , 2 , 6 , DMN , Methylation , Zeolite catalyst , PEN
JournalTitle :
Anadolu University Journal of Science and Technology. A : Applied Sciences and Engineering
