From small to large scale biodiesel synthesis from waste frying oil
BỘ CÔNG THƯƠNG TRƯỜNG ĐẠI HỌC CÔNG NGHIỆP TP HCM KHOA CƠNG NGHỆ HĨA From small to large scale biodiesel synthesis from waste frying oil Authors : Fatiha Ouanji et al 2016 Presenter : TRAN THI QUYNH MAI Lecturer : PhD DO QUY DIEM Present date : 31 March 2019 TranThiQuynhMai_17112501 Outline Introduction Methods Outstanding results Optimal conditions Conclusions TranThiQuynhMai_17112501 Why we use waste frying oil (UFO)? https:// vnexpress.net/khoa-hoc/bi en-dau-an-phe-thai-thanhdau-diesel-2085453.html Lower cost 20-30 kg/day Develop ways that efficiently reduce the cost of biodiesel production Optimize the conditions for lab-scale synthesis of Biodiesel from UFO TranThiQuynhMai_17112501 Methods Waste frying oil Alkadi (KOH) Biodiesel Pretreat Centrifugation Filter Dehydration at 115 ° Stirring in MeOH* T*, t* Drying at 80 °C Stored for 8h UFO Vacuum distillation Purification Preheat 60 °C Unreact alcohol & water TranThiQuynhMai_17112501 TranThiQuynhMai_17112501 Compositions of UFO and RFO Outstanding results UFO has much higher acid value than RFO TranThiQuynhMai_17112501 Effect of reaction time Outstanding results Effect of reaction time on biodiesel yield: RFO/AGM (a), RFO/PCM (b); UFO /AGM (c); UFO/PCM (d) Reaction conditions: KOH 1.2 wt.%, reaction temperature 60°C, reaction time h and molar ratio 6:1 Purities of MeOH and oil ↓ → Yield ↓ Rapid increase TranThiQuynhMai_17112501 Effect of catalyst conc Outstanding results Effect of catalyst concentration on biodiesel yield RFO/AGM (a): RFO/PCM (b); UFO/AGM (c): UFO/PCM (d) (Reaction conditions: reaction temperature 60°C, reaction time h and molar ratio Rapid increase Quality of oil ↓ → Yield ↓ TranThiQuynhMai_17112501 Effect of MeOH/oil Outstanding results Ratio ↑ → yield ↑ TranThiQuynhMai_17112501 Outstanding results Physicochemical properties of biodiesel Not too far to EU standard TranThiQuynhMai_17112501 10 -COOCH3 methyl ester group Biodiesel analysis -COOCH3 methyl ester group No peaks at 4.0-4.5 ppm assigned for triacylglycerols Outstanding results 1H-NMR spectrum of biodiesel obtained with UFO/PCM, methanol /oil ratio: 6(a); 9(b) and 12(c) (Reaction conditions: KOH 1.2 wt.%, reaction temperature 60°C, reaction time h.) TranThiQuynhMai_17112501 11 Optimal conditions Catalyst : KOH* 1.2% wt Temperature* : 60-65 ° Reaction time : 120 min* Purity of MeOH : purified crude MeOH (96.6%) MeOH/oil : 6/1 TranThiQuynhMai_17112501 12 Large scale biodiesel synthesis Reactor NaOH 1% /MeOH Decantation 90 ° 90 TranThiQuynhMai_17112501 Decantation storage 13 TranThiQuynhMai_17112501 14 ... Unreact alcohol & water TranThiQuynhMai_17112501 TranThiQuynhMai_17112501 Compositions of UFO and RFO Outstanding results UFO has much higher acid value than RFO TranThiQuynhMai_17112501 Effect of... MeOH/oil : 6/1 TranThiQuynhMai_17112501 12 Large scale biodiesel synthesis Reactor NaOH 1% /MeOH Decantation 90 ° 90 TranThiQuynhMai_17112501 Decantation storage 13 TranThiQuynhMai_17112501 14 ... ratio Rapid increase Quality of oil ↓ → Yield ↓ TranThiQuynhMai_17112501 Effect of MeOH/oil Outstanding results Ratio ↑ → yield ↑ TranThiQuynhMai_17112501 Outstanding results Physicochemical