scholarly journals The processing of used cooking oil (yellow grease) using combination of adsorption and ultrafiltration membrane processes

2018 ◽  
Vol 334 ◽  
pp. 012066
Author(s):  
C M Rosnelly ◽  
Sofyana ◽  
D Amalia ◽  
S Sarah
Keyword(s):  
Ultrafiltration Membrane ◽  
Membrane Processes ◽  
Yellow Grease ◽  
Cooking Oil ◽  
Used Cooking Oil

Analysis of the Social and Environmental Impact of Biodiesel Fuel Refined from Used Cooking Oil in Ibaraki Prefecture

2010 ◽  
Vol 40 (3) ◽  
pp. 749-762
Author(s):  
Hirokazu GOTO ◽  
Yuichi HATAYA ◽  
Yasuyuki YOKOTA ◽  
Takeshi MIZUNOYA ◽  
Yoshiro HIGANO
Keyword(s):  
Environmental Impact ◽  
Biodiesel Fuel ◽  
Cooking Oil ◽  
Used Cooking Oil ◽  
The Social ◽  
Ibaraki Prefecture

Synthesis and characterization of coal fly ash supported zinc oxide catalyst for biodiesel production using used cooking oil as feed

2021 ◽  
Vol 170 ◽  
pp. 302-314
Author(s):  
Adeyinka S. Yusuff ◽  
Aman K. Bhonsle ◽  
Jayati Trivedi ◽  
Dinesh P. Bangwal ◽  
Lok P. Singh ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Fly Ash ◽  
Oxide Catalyst ◽  
Coal Fly Ash ◽  
Biodiesel Production ◽  
Synthesis And Characterization ◽  
Cooking Oil ◽  
Used Cooking Oil

scholarly journals Two-Stage Biodiesel Synthesis from Used Cooking Oil with a High Acid Value via an Ultrasound-Assisted Method

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3703
Author(s):  
Ming-Chien Hsiao ◽  
Wei-Ting Lin ◽  
Wei-Cheng Chiu ◽  
Shuhn-Shyurng Hou
Keyword(s):  
Acid Value ◽  
Molar Ratio ◽  
Optimal Conditions ◽  
Two Stage ◽  
Cooking Oil ◽  
High Acid ◽  
Used Cooking Oil ◽  
Biodiesel Synthesis ◽  
Stage Process ◽  
Ultrasound Assisted

In this study, ultrasound was used to accelerate two-stage (esterification–transesterification) catalytic synthesis of biodiesel from used cooking oil, which originally had a high acid value (4.35 mg KOH/g). In the first stage, acid-catalyzed esterification reaction conditions were developed with a 9:1 methanol/oil molar ratio, sulfuric acid dosage at 2 wt %, and a reaction temperature of 60 °C. Under ultrasound irradiation for 40 min, the acid value was effectively decreased from 4.35 to 1.67 mg KOH/g, which was decreased to a sufficient level (<2 mg KOH/g) to avoid the saponification problem for the subsequent transesterification reaction. In the following stage, base-catalyzed transesterification reactions were carried out with a 12:1 methanol/oil molar ratio, a sodium hydroxide dosage of 1 wt %, and a reaction temperature of 65 °C. Under ultrasound-assisted transesterification for 40 min, the conversion rate of biodiesel reached 97.05%, which met the requirement of EN 14214 standard, i.e., 96.5% minimum. In order to evaluate and explore the improvement of the ultrasound-assisted two-stage (esterification–transesterification) process in shortening the reaction time, additional two-stage biodiesel synthesis experiments using the traditional mechanical stirring method under the optimal conditions were further carried out in this study. It was found that, under the same optimal conditions, using the ultrasound-assisted two-stage process, the total reaction time was significantly reduced to only 80 min, which was much shorter than the total time required by the conventional method of 140 min. It is worth noting that compared with the traditional method without ultrasound, the intensification of the ultrasound-assisted two-stage process significantly shortened the total time from 140 min to 80 min, which is a reduction of 42.9%. It was concluded that the ultrasound-assisted two-stage (esterification–transesterification) catalytic process is an effective and time-saving method for synthesizing biodiesel from used cooking oil with a high acid value.

Valorisation of used cooking oil sludge by codigestion with swine manure

2014 ◽  
Vol 34 (8) ◽  
pp. 1537-1545 ◽  
Author(s):  
J. Fierro ◽  
E.J. Martínez ◽  
A. Morán ◽  
X. Gómez
Keyword(s):  
Swine Manure ◽  
Oil Sludge ◽  
Cooking Oil ◽  
Used Cooking Oil

Potential of Used Cooking Oil as Dielectric Liquid for Oil-Immersed Power Transformers

2021 ◽  
Vol 28 (4) ◽  
pp. 1400-1407
Author(s):  
Imran Sutan Chairul ◽  
Norazhar Abu Bakar ◽  
Md Nazri Othman ◽  
Sharin Ab Ghani ◽  
Mohd Shahril Ahmad Khiar ◽  
...  
Keyword(s):  
Dielectric Liquid ◽  
Power Transformers ◽  
Cooking Oil ◽  
Used Cooking Oil

scholarly journals Hydrocracking of Used Cooking Oil into Biofuel Catalyzed by Nickel-Bentonite

2014 ◽  
Vol 26 (13) ◽  
pp. 3785-3789 ◽  
Author(s):  
K. Wijaya ◽  
A. Syoufian ◽  
S.D. Ariantika
Keyword(s):  
Cooking Oil ◽  
Used Cooking Oil

scholarly journals Increased advanced glycation end product specific fluorescence in repeatedly heated used cooking oil

2017 ◽  
Vol 54 (8) ◽  
pp. 2602-2606 ◽  
Author(s):  
Anupriya Chhabra ◽  
Alka Bhatia ◽  
Anil Kumar Ram ◽  
Sumit Goel
Keyword(s):  
Advanced Glycation ◽  
Advanced Glycation End Product ◽  
Specific Fluorescence ◽  
Cooking Oil ◽  
Used Cooking Oil
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