Lipase-Catalyzed Production of Biodiesel by Hydrolysis of Waste Cooking Oil Followed by Esterification of Free Fatty Acids

2016 ◽  
Vol 93 (12) ◽  
pp. 1615-1624 ◽  
Author(s):  
Vinicius Vescovi ◽  
Mayerlenis Jimenez Rojas ◽  
Anderson Baraldo ◽  
Daniel Carrero Botta ◽  
Felipe Augusto Montes Santana ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Free Fatty Acids ◽  
Waste Cooking Oil ◽  
Cooking Oil ◽  
Hydrolysis Of

Ferric sulphate catalysed esterification of free fatty acids in waste cooking oil

2010 ◽  
Vol 101 (19) ◽  
pp. 7338-7343 ◽  
Author(s):  
Suyin Gan ◽  
Hoon Kiat Ng ◽  
Chun Weng Ooi ◽  
Nafisa Osman Motala ◽  
Mohd Anas Farhan Ismail
Keyword(s):  
Fatty Acids ◽  
Free Fatty Acids ◽  
Waste Cooking Oil ◽  
Ferric Sulphate ◽  
Cooking Oil

scholarly journals Pemanfaatan Limbah Cangkang Kelapa Sawit (Elaeis guineensis) Sebagai Pengadsorbsi Minyak Jelantah

2018 ◽  
Vol 7 (3) ◽  
pp. 152
Author(s):  
Nurcholis Al Ubaidah ◽  
Siti Nuryanti ◽  
Supriadi Supriadi
Keyword(s):  
Fatty Acids ◽  
Free Fatty Acids ◽  
Water Content ◽  
Palm Oil ◽  
Peroxide Value ◽  
Adsorption Process ◽  
Oil Quality ◽  
Waste Cooking Oil ◽  
Cooking Oil

Improper of usage and storage of cooking oil can increase the water content on cooking oil. It can decrease of cooking oil quality and fried food that resulted from this cooking oil which then can cause health problems. This study aimed to determine of the waste cooking oil quality after it was adsorbed with charcoal from eggshell palm oil (Elaeis gunieensis). The quality was determined based on the free fatty acids, the peroxide value, and the water content of the waste cooking oil before and after adsorption. Determination of free fatty acids was used titration method while determination of water content was used gravimetric method. The result showed that the cooking oil quality contained 0.014% of free fatty acids, 1 meq.O2/kg of peroxide value, and 0.0003% of water content. The waste cooking oil quality without adsorption process was 0.042% of free fatty acids, 26 meq.O2/kg of peroxide value, and 0.0011% of water content. After adsorption process with 5, 10, 15, 20, and 25 gram of charcoal from eggshell palm oil into 100 mL of waste cooking oil, it was found that 15 gram of eggshell weight was the best adsorbent. In was condition, the free fatty acid was 0.0006%, the peroxide value was 2 meq.O2/kg, and the water content 0.0005%. It showed that the waste cooking oil quality become better after adding of charcoal of eggshell palm oil as the adsorbent.

Free fatty acids esterification of waste cooking oil and its mixtures with rapeseed oil and diesel

Fuel ◽  
2013 ◽  
Vol 108 ◽  
pp. 612-619 ◽  
Author(s):  
D.C. Boffito ◽  
C. Pirola ◽  
F. Galli ◽  
A. Di Michele ◽  
C.L. Bianchi
Keyword(s):  
Fatty Acids ◽  
Free Fatty Acids ◽  
Rapeseed Oil ◽  
Waste Cooking Oil ◽  
Cooking Oil
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