scholarly journals Biodiesel from Hydrolyzed Waste Cooking Oil Using a S-ZrO2/SBA-15 Super Acid Catalyst under Sub-Critical Conditions

Energies ◽  
2018 ◽  
Vol 11 (2) ◽  
pp. 299 ◽  
Author(s):  
◽  
◽  
◽  
Keyword(s):  
Acid Catalyst ◽  
Waste Cooking Oil ◽  
Critical Conditions ◽  
Cooking Oil ◽  
Super Acid

Synthesis and Characterization of Heterogeneous Solid Acid Catalyst from Alstonia Scolaris Stalks for Biodiesel Production using Waste Cooking Oil

2020 ◽  
Vol 10 ◽  
Author(s):  
Charishma Venkata Sai Anne ◽  
Karthikeyan S. ◽  
Arun C.
Keyword(s):  
Reaction Time ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Wood Biomass ◽  
Waste Wood ◽  
X Ray ◽  
Cooking Oil

Background: Waste biomass derived reusable heterogeneous acid based catalysts are more suitable to overcome the problems associated with homogeneous catalysts. The use of agricultural biomass as catalyst for transesterification process is more economical and it reduces the overall production cost of biodiesel. The identification of an appropriate suitable catalyst for effective transesterification will be a landmark in biofuel sector Objective: In the present investigation, waste wood biomass was used to prepare a low cost sulfonated solid acid catalyst for the production of biodiesel using waste cooking oil. Methods: The pretreated wood biomass was first calcined then sulfonated with H2SO4. The catalyst was characterized by various analyses such as, Fourier-transform infrared spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Energy Dispersive X-Ray Spectroscopy (EDS) and X-ray diffraction (XRD). The central composite design (CCD) based response surface methodology (RSM) was applied to study the influence of individual process variables such as temperature, catalyst load, methanol to oil molar ration and reaction time on biodiesel yield. Results: The obtained optimized conditions are as follows: temperature (165 ˚C), catalyst loading (1.625 wt%), methanol to oil molar ratio (15:1) and reaction time (143 min) with a maximum biodiesel yield of 95 %. The Gas chromatographymass spectrometry (GC-MS) analysis of biodiesel produced from waste cooking oil was showed that it has a mixture of both monounsaturated and saturated methyl esters. Conclusion: Thus the waste wood biomass derived heterogeneous catalyst for the transesterification process of waste cooking oil can be applied for sustainable biodiesel production by adding an additional value for the waste materials and also eliminating the disposable problem of waste oils.

scholarly journals Optimization of Biodiesel Production from Waste Cooking Oil Using S–TiO2/SBA-15 Heterogeneous Acid Catalyst

Catalysts ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 67 ◽  
Author(s):  
Muhammad Hossain ◽  
Md Siddik Bhuyan ◽  
Abul Md Ashraful Alam ◽  
Yong Seo
Keyword(s):  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Catalyst Loading ◽  
Esterification Reaction ◽  
Impregnation Method ◽  
Cooking Oil ◽  
Heterogeneous Acid Catalyst

The aim of this research was to synthesize, characterize, and apply a heterogeneous acid catalyst to optimum biodiesel production from hydrolyzed waste cooking oil via an esterification reaction, to meet society’s future demands. The solid acid catalyst S–TiO2/SBA-15 was synthesized by a direct wet impregnation method. The prepared catalyst was evaluated using analytical techniques, X-ray diffraction (XRD), Scanning electron microscopy (SEM) and the Brunauer–Emmett–Teller (BET) method. The statistical analysis of variance (ANOVA) was studied to validate the experimental results. The catalytic effect on biodiesel production was examined by varying the parameters as follows: temperatures of 160 to 220 °C, 20–35 min reaction time, methanol-to-oil mole ratio between 5:1 and 20:1, and catalyst loading of 0.5%–1.25%. The maximum biodiesel yield was 94.96 ± 0.12% obtained under the optimum reaction conditions of 200 °C, 30 min, and 1:15 oil to methanol molar ratio with 1.0% catalyst loading. The catalyst was reused successfully three times with 90% efficiency without regeneration. The fuel properties of the produced biodiesel were found to be within the limits set by the specifications of the biodiesel standard. This solid acid catalytic method can replace the conventional homogeneous catalyzed transesterification of waste cooking oil for biodiesel production.

Production of methyl esters from waste cooking oil and chicken fat oil via simultaneous esterification and transesterification using acid catalyst

2020 ◽  
Vol 226 ◽  
pp. 113366
Author(s):  
Shatesh Kumar ◽  
Mohd Razali Shamsuddin ◽  
M.S Ahmad Farabi ◽  
Mohd Izham Saiman ◽  
Zulkarnain Zainal ◽  
...  
Keyword(s):  
Methyl Esters ◽  
Acid Catalyst ◽  
Waste Cooking Oil ◽  
Chicken Fat ◽  
Cooking Oil

scholarly journals Esterification of Waste Cooking Oil Using Ultrasonic: Kinetic Study

2019 ◽  
Vol 20 (2) ◽  
pp. 57-68
Author(s):  
Egi Agustian ◽  
Jessica Jessica ◽  
Pudji Untoro ◽  
Anny Sulaswatty
Keyword(s):  
Phosphoric Acid ◽  
Conventional Method ◽  
Acid Catalyst ◽  
Waste Cooking Oil ◽  
Reaction Rate Constant ◽  
Order Reaction ◽  
Second Order ◽  
Raw Material ◽  
Irreversible Reaction ◽  
Cooking Oil

Waste cooking oil (WCO) have a great potential as an alternative raw material for producing biodiesel. The literatures kinetic of the esterification of WCO in the presence of phosphoric acid catalyst with ultrasonic assisted are rare and most literatures used conventional method. This study aims to determine the optimum condition and the parameters of first and second order kinetics of the WCO esterification which was assisted by ultrasonic bath. Variables that used in this study are methanol/oil mole ratio, acid catalyst concentration and reaction temperature. The highest conversion was 42.08% with methanol/oil mole ratio of 15:1, a catalyst (phosphoric acid) concentration of 9% wt and temperature of 50oC within 90 minutes. The reaction time was reduced to 3 times (minute) compare to conventional method and fatty acid reduced 42%. Kinetic parameters were calculated with assumption that the esterification was the irreversible reaction. The reaction rate constant increasing with temperature. The value of activation energy for esterification of WCO is 42.94 kJ/mol for first order reaction and 35.30 kJ/mol for second order reaction.

Glycerol Esters from Real Waste Cooking Oil Using a Robust Solid Acid Catalyst

2014 ◽  
Vol 57 (17-20) ◽  
pp. 1545-1549 ◽  
Author(s):  
Venkatesh Subbiah ◽  
Peter van Zwol ◽  
Alexandre C. Dimian ◽  
Vitaly Gitis ◽  
Gadi Rothenberg
Keyword(s):  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Waste Cooking Oil ◽  
Cooking Oil
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