Highly efficient production of FAMEs and β-farnesene from a two-stage biotransformation of waste cooking oils

2019 ◽  
Vol 199 ◽  
pp. 112001 ◽  
Author(s):  
Jiajia Lv ◽  
Yuefei Wang ◽  
Chengyu Zhang ◽  
Shengping You ◽  
Wei Qi ◽  
...  
Keyword(s):  
Efficient Production ◽  
Two Stage ◽  
Highly Efficient ◽  
Waste Cooking Oils ◽  
Cooking Oils

High-efficient production of biofuels using spent fluid catalytic cracking (FCC) catalysts and high acid value waste cooking oils

2021 ◽  
Vol 168 ◽  
pp. 57-63
Author(s):  
Nguyen Le-Phuc ◽  
Tri V. Tran ◽  
Thien T. Phan ◽  
Phuong T. Ngo ◽  
Quan L.M. Ha ◽  
...  
Keyword(s):  
Catalytic Cracking ◽  
Acid Value ◽  
Fluid Catalytic Cracking ◽  
Efficient Production ◽  
High Acid ◽  
Waste Cooking Oils ◽  
High Efficient ◽  
Cooking Oils ◽  
Fcc Catalysts

scholarly journals Variation of the Chemical Composition of Waste Cooking Oils upon Bentonite Filtration

Resources ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 108 ◽  
Author(s):  
Alberto Mannu ◽  
Gina Vlahopoulou ◽  
Paolo Urgeghe ◽  
Monica Ferro ◽  
Alessandra Del Caro ◽  
...  
Keyword(s):  
Particle Size ◽  
Chemical Composition ◽  
Solid Phase ◽  
Volatile Fraction ◽  
X Ray Diffraction ◽  
Specific Chemical ◽  
Waste Cooking Oils ◽  
Main Components ◽  
Cooking Oils ◽  
Chemical Groups

The chemical composition and the color of samples of waste cooking oils (WCOs) were determined prior to and after filtration on two different pads of bentonite differing in particle size. The volatile fraction was monitored by headspace solid-phase microextraction (HS-SPME) coupled with gas-chromatography, while the variation of the composition of the main components was analyzed by 1H NMR. Both techniques allowed the detection of some decomposition products, such as polymers, terpenes, and derivatives of the Maillard process. The analysis of the chemical composition prior to and after bentonite treatment revealed a tendency for the clays to retain specific chemical groups (such as carboxylic acids or double bonds), independent of their particle size. A pair comparison test was conducted in order to detect the sensory differences of the intensity of aroma between the WCO treated with the two different bentonites. In addition, characterization of the bentonite by means of powder X-ray diffraction (XRD) and thermogravimetric measurements (TG) was performed.

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