Yazar "Akyalçın, Sema" için listeleme
-
Heterojen katalizör varlığında benzil alkol ile benzenin benzilasyon tepkimesinin incelenmesi
Akyalçın, Sema; Anadolu Üniversitesi, Fen Bilimleri Enstitüsü, Kimya Mühendisliği Anabilim Dalı; Karabulut, Deniz (Tez (yüksek lisans) - Anadolu Üniversitesi, 2019)Bu çalışmada heterojen katalizör varlığında benzenin benzil alkol ile benzilasyonu tepkimesi ile difenilmetan sentezi gerçekleştirilmiştir. Bu tepkimede katalizör olarak kullanılmak üzere MCM-22 zeoliti, hidrotermal sentez ... -
Heterojen katalizörler varlığında etilen oksit-su tepkimesinin kinetik incelenmesi
Akyalçın, Sema (Anadolu Üniversitesi, 2010)Etilen oksit-su tepkimesi kinetik verileri, katalizörsüz ve heterojen katalizör varlığında basınçlı kesikli bir reaktörde elde edilmiştir. Heterojen katalizör olarak denenen dört tip çapraz-bağlı stiren divinilbenzen anyon ... -
Investigation of the Dissolution Kinetics of Meta-Kaolin in H2SO4 Solution
Altıokka, Mehmet Riza; Akalın, Handan; Melek, Nergis; Akyalçın, Sema (American Chemical Society, 2010)Kaolin with a given size distribution was calcined at 1023 K for 2 h then digested in 3 0, 4 5, and 60 N sulfuric acid at constant temperatures within the range 328-358 K The samples taken from the solution at predetermined ... -
Kinetic Study of the Formation of Isopropyl Alcohol by Transesterification of Isopropyl Acetate with Methanol in the Presence of Heterogeneous Catalyst
Akyalçın, Sema (American Chemical Society, 2014)The kinetics of the transesterification of isopropyl acetate with methanol to methyl acetate and isopropyl alcohol catalyzed by Lewatit MonoPlus S100 H+ was studied in a pressurized batch reactor. In the temperature range ... -
Kinetic Study of the Hydration of Propylene Oxide in the Presence of Heterogeneous Catalyst
Akyalçın, Sema (Assoc Chemical Eng, 2017)The kinetics of the hydration of propylene oxide was studied using a pres-surized batch reactor for both uncatalyzed and heterogeneously catalyzed reactions. Lewatit MonoPlus M500/HCO3- was used as heterogeneous cat-alyst, ... -
Kinetics of esterification of acetic acid with 1-octanol in the presence of Amberlyst 36
Akyalçın, Sema; Altıokka, Mehmet Rıza (Elsevier Science BV, 2012)Kinetic data on the esterification of acetic acid with 1-octanol were obtained from both uncatalyzed and heterogeneously catalyzed reactions using a stirred batch reactor in toluene. The equilibrium constant, K-C, which ... -
Kinetics of the Hydration of Ethylene Oxide in the Presence of Heterogeneous Catalyst
Altıokka, Mehmet Riza; Akyalçın, Sema (American Chemical Society, 2009)Kinetic data on the hydration of ethylene oxide was obtained from both uncatalyzed and heterogeneously catalyzed reactions using a pressurized batch reactor. Amberjet 4200/HCO(3)(-) was used as the heterogeneous catalyst, ... -
Methanol to hydrocarbons over large cavity zeolites: Toward a unified description of catalyst deactivation and the reaction mechanism
Bjorgen, Morten; Akyalçın, Sema; Olsbye, Unni; Benard, Sandrine; Kolboe, Stein; Svelle, Stian (Academic Press Inc Elsevier Science, 2010)The reaction mechanism for the conversion of methanol to hydrocarbons over three large cavity zeolites, H-beta, H-MCM-22, and H-mordenite, has been investigated. (13)C methanol was co-reacted with (12)C benzene to study ... -
Optimization of desilication parameters of low-silica ZSM-12 by Taguchi method
Akyalçın, Sema; Akyalçın, Levent; Bjorgen, M. (Elsevier Science BV, 2019)Zeolite ZSM-12 was synthesized by a direct hydrothermal method and subsequently desilicated by alkaline treatment under different conditions. Changes in the properties of the zeolite samples were investigated by XRD, ...
