Esterification of oleic acid with methanol on structured solid acid catalysis
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2024
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01. Izmir Institute of Technology
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Abstract
Bu çalışmada, Oleik Asit metanol ile birlikte Sülfonlanmış Alüminyum Silika (SAS) heterojen asidik katalizörü üzerinde gerçekleştireceği esterifikasyon reaksiyonu incelenecektir. Araştırma, farklı metanol/yağ asidi mol oranları (9/1-21/1), katalizör miktarları (%10-%20) ve reaksiyon sürelerinin (3s–9s) 105°C sıcaklıkta reaksiyon verimliliği üzerindeki etkisini Box Bhenkhen yardımı ile değerlendirmeyi amaçlamaktadır. Katalizörlerin aktivitesi iki farklı katalizör formu (toz, yapısal) ele alınarak değerlendirilecektir. Bu çalışma, varyans analizi istatistiksel sonuçlarına göre, toz katalizör varlığında gerçekleştirilen deneylerde reaksiyon süresinin dönüşüm değerleri üzerinde en büyük etkiye sahip olduğunu göstermektedir. Reaksiyon süresi uzadıkça dönüşüm oranları hızlı bir şekilde artmıştır. Ayrıca, kullanılan katalizör miktarı da doğrudan etkili olmuş ve en yüksek dönüşüm oranı, Alkol/FFA oranının 9/1 olduğu durumda elde edilmiştir. Ayrıca, yapısal katalizörlerin varlığında gerçekleşen reaksiyonun dönüşüm değerinin, toz formundaki katalizörlerin değerleriyle karşılaştırılabilir olduğu tespit edilmiştir. Ayrıca yapılandırılmış katalizörlerde toz katalizöre göre ayırma adımına gerek kalmamıştır.
In this study, the esterification reaction of Oleic Acid with methanol on the Sulfonated Aluminum Silica (SAS) heterogeneous acidic catalyst will be examined. The research aims to evaluate the effect of different methanol/fatty acid mole ratios (9/1-21/1), catalyst amounts (10%-20%), and reaction times (3h-9h) on the reaction efficiency at 105°C with the help of Box Bhenkhen. The activity of the prepared catalysts will be evaluated by considering two different catalyst forms (powder, and structural). This study demonstrates that, according to ANOVA statistical results, reaction time has the most significant impact on conversion values in experiments conducted with powdered catalysts. As the reaction time increases, the conversion rates rise rapidly. Additionally, the amount of catalyst used has a direct effect, with the highest conversion rate achieved at an Alcohol/FFA ratio of 9/1. Furthermore, it was discovered that the conversion values of the reaction that occurred in the presence of structural catalysts are comparable to those of the powder form. Additionally, they did not require a separation step when using structured catalysts as opposed to powder catalysts.
In this study, the esterification reaction of Oleic Acid with methanol on the Sulfonated Aluminum Silica (SAS) heterogeneous acidic catalyst will be examined. The research aims to evaluate the effect of different methanol/fatty acid mole ratios (9/1-21/1), catalyst amounts (10%-20%), and reaction times (3h-9h) on the reaction efficiency at 105°C with the help of Box Bhenkhen. The activity of the prepared catalysts will be evaluated by considering two different catalyst forms (powder, and structural). This study demonstrates that, according to ANOVA statistical results, reaction time has the most significant impact on conversion values in experiments conducted with powdered catalysts. As the reaction time increases, the conversion rates rise rapidly. Additionally, the amount of catalyst used has a direct effect, with the highest conversion rate achieved at an Alcohol/FFA ratio of 9/1. Furthermore, it was discovered that the conversion values of the reaction that occurred in the presence of structural catalysts are comparable to those of the powder form. Additionally, they did not require a separation step when using structured catalysts as opposed to powder catalysts.
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Includes bibliographical references (leaves. 37-38)
Thesis (Master)--Izmir Institute of Technology, Chemical Engineering, Izmir, 2024
Text in English; Abstract: Turkish and English
Thesis (Master)--Izmir Institute of Technology, Chemical Engineering, Izmir, 2024
Text in English; Abstract: Turkish and English
Keywords
Catalysts, Esterification, Oleic acid
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47
