The testing of the effects of cooking conditions on the quality of biodiesel produced from waste cooking oils

Doğan, Tuba Hatice

doi:10.1016/j.renene.2016.03.088

Cited by 49 publications

(17 citation statements)

References 27 publications

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“…The catalytic transesterification reaction is the most commonly used method for transesterification of oil to produce biodiesel as it is simple and has been widely studied and industrially used to convert edible, non-edible oil, microalgae, animal fats or UCO into biodiesel. Catalytic transesterification is the reaction of triglyceride molecules that are present in the feedstock with an alcohol in the presence of a catalyst to form alkyl esters (biodiesel) and glycerol (Doğan, 2016). Fig.…”

Section: Heterogeneous Catalytic Transesterification Reaction For Biomentioning

confidence: 99%

Synthesis of mesoporous calcium titanate catalyst for transesterification of used cooking oil: A review of the synthesized potential

Yahya¹,

Ngadi²

2020

Int. j. adv. appl. sci.

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Biodiesel is a promising alternative for conventional diesel fuel due to the unsustainable feature of the resources and unstable price of the fuels. However, the production cost is higher compared to the conventional ones and is significantly contributed from the feedstock. Realizing that a large portion of used cooking oil (UCO) is generated daily, this review aims to investigate and explore the production of biodiesel from UCO. In the production reaction process, undoubtedly, the catalyst plays an important role. It has been shown that calcium oxide (CaO) is one of the best heterogeneous basic catalysts in the transesterification reaction for biodiesel production. However, the catalyst has a low surface area which restricts the active basic sites to disperse on the catalyst surface. Moreover, CaO catalyst faces leaching problem, poor stability, and porosity which hinder its catalytic activity and reusability. Therefore, in this study, it is aimed to review the potential of titanium as a support catalyst to modify CaO supported titanium with a mesoporous structure (mesoporous calcium titanate) by a sol-gelhydrothermal method to overcome the limitations of CaO catalyst.

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Section: Heterogeneous Catalytic Transesterification Reaction For Biomentioning

confidence: 99%

Synthesis of mesoporous calcium titanate catalyst for transesterification of used cooking oil: A review of the synthesized potential

Yahya¹,

Ngadi²

2020

Int. j. adv. appl. sci.

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“…Bu reaksiyonlar; suyun neden olduğu hidroliz reaksiyonu, oksijenin neden olduğu oksidasyon reaksiyonu ve ısının neden olduğu termal bozunma reaksiyonlarıdır (Choe ve Min, 2007). Kızartma prosesi sırasında yağda meydana gelen bu reaksiyonlar, yağın özelliklerini ve buna bağlı olarak da bu yağdan üretilen biyodizelin özelliklerini olumsuz yönde etkilemektedir (Doğan, 2016 geçen suyun bir kısmı ve gıdanın kendi nemi yağın içinde kalır. Yağdaki su miktarı arttıkça, yağın hidrolizi ve bununla birlikte serbest yağ asitleri artar.…”

Section: Bulgular Ve Tartışmaunclassified

Kızartma Prosesinin Atık Bitkisel Yağlardan Elde Edilen Biyodizel YAME Ürünü Üzerine Etkilerinin Araştırılması

Doğan

2018

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Biyodizel genellikle yüksek saflıkta yağlar kullanılarak, alkali katalizörlü transesterifikasyon reaksiyonu ile üretilir. Ancak hammadde olarak yemeklik bitkisel yağların kullanımı, biyodizelin en önemli dezavantajlarından biri olan maliyetini arttırır. Her yıl tüm dünyada çok miktarda atık kızartma yağı oluşmaktadır. Bu yağlardan biyodizel üretilmesiyle, hem yakıt maliyetinin düşürülmesine yardımcı olunacak hem de çevreye ve ekonomiye önemli katkılar sağlanmış olunacaktır. Bitkisel yağların kızartma prosesi sırasında maruz kaldıkları pişirme şartları, yağda bir takım değişikliklere sebep olmaktadır. Yağdaki değişiklikler bunlardan üretilen biyodizelin de bazı özelliklerini etkilemektedir. Bu çalışmada, tuz oranı, su oranı, kızartma sıcaklığı ve kızartma süresi gibi farklı kızartma şartlarına maruz bırakılan ve atık hale getirilen üç farklı bitkisel yağdan biyodizel üretilmiştir. Bitkisel yağların kızartma şartlarının üretilen biyodizelin yağ asiti metil ester (YAME) ürününü nasıl etkilediği incelenmiştir. Biyodizel örneklerinin yağ asiti metil ester içerikleri gaz kromatografisi ile ölçülmüştür. Sonuç olarak, tüm bitkisel yağların tuz oranı, su oranı, kızartma sıcaklığı ve kızartma süresi arttıkça üretilen biyodizel örneklerinin ürün miktarının azaldığı tespit edilmiştir. Ayrıca, kızartma prosesinin en fazla mısırözü yağını ve buna bağlı olarak mısırözü biyodizelini olumsuz yönde etkilediği de görülmüştür.

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“…The presence of heat and water accelerates the hydrolysis of triglycerides, increasing the content of free fatty acids (FFA) in the oil (de Araújo, de Andrade, e Silva, & Dupas, ). Doğan () studied the effects of cooking conditions on the cold flow properties and kinematic viscosity of biodiesel produced from cooking oils. Doğan found that an increase in salt and water content, cooking time, and temperature led to deterioration of the physical properties and cold flow properties of B100 (100% biodiesel) samples from WCOs of sunflower, corn, and canola oils.…”

Section: Introductionmentioning

confidence: 99%

Production, engine performance, combustion, emission characteristics and economic feasibility of biodiesel from waste cooking oil: A review

Rekhate

Prajapati

2019

Environmental Quality Mgmt

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The depletion of fossil fuel reserves and increasing demands for diesel are considered to be important triggers for many of the initiatives that have been taken to search for possible sources for the production of biodiesel from materials available within the country. It is possible to produce biodiesel from waste/used cooking oils (WCO) that is comparable in quality to that of fresh vegetable oil. Not only does reuse of WCO, which can otherwise harm human health, reduce the burden on the government of treating oily wastewater, disposing of the waste, and maintaining public sewers, it also significantly lowers the production cost of biodiesel. In the process of frying, oil undergoes many reactions, leading to the formation of a number of undesirable compounds, such as polymers, free fatty acids, and many other chemicals. This poses challenges in the transesterification of WCO. This article covers different techniques in the production of biodiesel from WCO.It also compares combustion, emissions, and engine performance characteristics of biodiesel from WCO as well as factors affecting biodiesel production from WCO and its economic feasibility. K E Y W O R D S

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The testing of the effects of cooking conditions on the quality of biodiesel produced from waste cooking oils

Cited by 49 publications

References 27 publications

Synthesis of mesoporous calcium titanate catalyst for transesterification of used cooking oil: A review of the synthesized potential

Synthesis of mesoporous calcium titanate catalyst for transesterification of used cooking oil: A review of the synthesized potential

Kızartma Prosesinin Atık Bitkisel Yağlardan Elde Edilen Biyodizel YAME Ürünü Üzerine Etkilerinin Araştırılması

Production, engine performance, combustion, emission characteristics and economic feasibility of biodiesel from waste cooking oil: A review

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