Publication: Pamuk Yağı-metanol Enzimatik Transesterifikasyon Reaksiyonunun İncelenmesi
Loading...
Files
Date
Authors
Advisor
Department
Kimya Mühendisliği
Chemical Engineering
Chemical Engineering
Journal Title
Journal ISSN
Volume Title
Publisher
Fen Bilimleri Enstitüsü
Institute of Science And Technology
Institute of Science And Technology
Type
Abstract
Bu çalışmada, pamuk yağının metanol ile Novozym 435 mikrobiyal immobilize lipazı varlığında enzimatik transesterifikasyon reaksiyonu optimum koşullar belirlenerek gerçekleştirilmiştir. Çalışmada dört parametrenin reaksiyon üzerindeki etkisi incelenmiş ve en yüksek metil ester içeriği yağın % 30’ u oranında alınan enzim miktarında, 1/4 yağ/alkol mol oranında, 50?C reaksiyon sıcaklığında ve 7 saat reaksiyon süresinde elde edilmiştir. Kullanılan immobilize enzimin tekrar kullanılabilirlik derecesi de araştırılmış ve üçüncü kullanım sonunda metil ester içeriğinin % 91.45’ ten % 11.69’ a düştüğü görülmüştür. Çalışmanın son aşamasında, pamuk yağı-metanol enzimatik transesterifikasyon reaksiyonu sonucu elde edilen metil esterin alternatif yakıt özellikleri incelenmiştir. Elde edilen biyomotorin Normal İklimler-Tip A sınıfına uygun çevre dostu yenilenebilir alternatif bir yakıt adayıdır.
In this study enzymatic transesterification reactions between methanol and cottonseed oil in the presence of immobilized microbial lipase Novozym 435 is realized. The effects of four parameters on the methyl ester content of the reactions are investigated. The highest methyl ester content is obtained when the amount of the enzyme is taken as 30% of oil, oil/alcohol molar ratio as 1/ 4, temperature and reaction time as 50?C and 7 hours, respectively. To determine the extent of reuse of the immobilized enzyme, three consecutive runs were done and methyl ester content decreased from 91.45% to 11.69%. Biodiesel obtained from the cottonseed oil is a fuel substitute for Normal Climates- Class A according to Turkish standarts. Biodiesel is an environmental friendly, renewable and alternative diesel fuel candidate.
In this study enzymatic transesterification reactions between methanol and cottonseed oil in the presence of immobilized microbial lipase Novozym 435 is realized. The effects of four parameters on the methyl ester content of the reactions are investigated. The highest methyl ester content is obtained when the amount of the enzyme is taken as 30% of oil, oil/alcohol molar ratio as 1/ 4, temperature and reaction time as 50?C and 7 hours, respectively. To determine the extent of reuse of the immobilized enzyme, three consecutive runs were done and methyl ester content decreased from 91.45% to 11.69%. Biodiesel obtained from the cottonseed oil is a fuel substitute for Normal Climates- Class A according to Turkish standarts. Biodiesel is an environmental friendly, renewable and alternative diesel fuel candidate.
Description
Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 1999
Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 1999
Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 1999
Journal or Series
ISSN
ISBN
Rights
İTÜ tezleri telif hakkı ile korunmaktadır. Bunlar, bu kaynak üzerinden herhangi bir amaçla görüntülenebilir, ancak herhangi bir biçimde yeniden oluşturulması veya dağıtılması yazılı izin alınmadan yasaklanmıştır.
İTÜ theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
İTÜ theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
Keywords
Pamuk yağı, Enzimatik Transesterifikasyon Reaksiyonu, Biyomotorin, Cottonseed oil, Enzymatic Transesterification Reaction, Biodiesel
Citation
Endorsement
Review
Supplemented By
Referenced By
13
Görüntülenme
38
İndirme
Google Scholar
Scholar'da Ara ↗ Bu yayında DOI yok — Altmetric/Dimensions/PlumX/BIP! rozetleri DOI gerektirir.