Sulfonated poly(styrene-divinylbenzene-glycidyl methacrylate)-capsulated magnetite nanoparticles as a recyclable catalyst for one-step biodiesel production from high free fatty acid-containing feedstocks

2018 ◽  
Vol 42 (15) ◽  
pp. 13074-13080 ◽  
Author(s):  
Jinming Chang ◽  
Xiaoyu Guan ◽  
Siyu Pan ◽  
Maolin Jia ◽  
Yi Chen ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Glycidyl Methacrylate ◽  
Fatty Acid Content ◽  
Biodiesel Production ◽  
High Free Fatty Acid ◽  
Styrene Divinylbenzene ◽  
One Step ◽  
The One ◽  
Sulfonated Poly

A magnetically-recyclable nanocatalyst was designed for the one-step production of biodiesel from feedstocks with a high free fatty acid content.

scholarly journals Efficiency Evaluation on the Influence of Washing Methods for Biodiesel Produced from High Free Fatty Acid Waste Vegetable Oils through Selected Quality Parameters

Energies ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 6328
Author(s):  
Eugenia Guadalupe Ortiz Lechuga ◽  
Mauro Rodríguez Zúñiga ◽  
Katiushka Arévalo Niño
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Vegetable Oils ◽  
Canola Oil ◽  
Alternative Energy ◽  
Fatty Acid Content ◽  
Acid Number ◽  
Biodiesel Production ◽  
High Free Fatty Acid ◽  
Specific Storage

The increasing use of alternative energy sources has brought benefits like the recycling of waste vegetable oils (WVO) for biodiesel production; however, this practice presents challenges derived from a highly variable raw matter. Our research focused on the washing techniques usually employed by small to medium scale producers which may lack the infrastructure to perform high-grade purification and often relay on the employment of “artisanal” technology. We report biodiesel production from pure canola oil (C1) and a mix of soybean/canola oil (C2) as well as WVO from sample C2 with high free fatty acid content (2.7 FFA %) oil. We selected seven quality tests: pH determination, cloud, pour and flash point, acid number (AN), water/sediments and soap content considering the most commonly failed checkpoints in biodiesel production. From the use of four washing techniques, we determined that the sawdust filtration had the highest recovering yield with 89%. The majority of the washed biodiesel met the America Society of Testing Material (ASTM) standard limits for the tests selected. Biodiesel stability was tested from week 0 to week 6, determining a shelf life of three weeks in optimal conditions without the addition of antioxidants or specific storage conditions.

Biodiesel Production from the High Free Fatty Acid “Hevea brasiliensis” and Fuel Properties Characterization

2014 ◽  
Vol 625 ◽  
pp. 897-900 ◽  
Author(s):  
Junaid Ahmad ◽  
Suzana Yusup ◽  
Awais Bokhari ◽  
Ruzaimah Nik Mohammad Kamil
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Seed Oil ◽  
Standard Procedure ◽  
Fuel Properties ◽  
Biodiesel Production ◽  
Modern World ◽  
High Free Fatty Acid ◽  
Rubber Seed Oil ◽  
Rubber Seed

Energy crises, depletion of fossil fuel reservoirs, environmental pollution, global warming, green house effect and starvation are becoming very serious problems in the modern world. Biodiesel is a liquid fuel which can be the best alternative for the fossil fuels. In this study, non-edible rubber seed oil (RSO) with high free fatty acid (FFA) content (45%) was used for the production of biodiesel. The process comprises of two steps, in the first step acid esterification was used to reduce the FFA and in the second step base transesterification was employed to convert the treated oil into rubber seed oil methyl esters (RSOMEs). The conversion yield of biodiesel was analyzed using gas chromatography. The fuel properties were tested using the standard procedure of ASTM D6751 and EN14214. All the properties were within the ranges of the biodiesel standards. The result shows that rubber seed oil is a potential non-edible source for biodiesel production.

Performance of Compression Ignition Engine with Coated Piston for Multiple Blends of Methyl Castor Oil

2016 ◽  
Vol 8 (2) ◽  
Author(s):  
V.H. Wilson ◽  
V. Yalini
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Castor Oil ◽  
Fatty Acid Content ◽  
Maximum Yield ◽  
Biodiesel Production ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Step Process ◽  
Performance And Emission

Fossil fuel is getting exhausted at a fast rate and contributes to high carbon monoxide emissions. Biodiesel, being environmentally friendly, has better performance than diesel. Castor oil is an easily available vegetable oil in India. But its high viscosity leads to blockage of the fuel lines. The amount of free fatty acid more than 1% leads to soap formation which necessitates the biodiesel production in a two step process. The first step of acid catalyzed esterification process reduces the free fatty acid content of castor oil to below 1%. The second step of transesterification process converts the preheated oil to castor biodiesel. This two step process gave a maximum yield of 90%.The methyl castor oil (biodiesel) is blended with diesel in different proportions on volume basis as 15:85 (B15), 25:75 (B25), and 35:65 (B35). These blended oils are used to run a single cylinder four stroke compression ignition engine with different coatings of pistons, to study and compare the engine performance and emission characteristics at different load conditions.

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