scholarly journals Transesterification of Moringa Oleifera Seed Oil by Sodium Silicate Catalyst Using Different Co-Solvents

2018 ◽  
Vol 7 (3.36) ◽  
pp. 1
Author(s):  
Puvaniswaran K. Moorthi ◽  
Preeti Shrivastava ◽  
Soundarajan Krishnan

Biodiesel is a renewable energy source which is derived as an alternate fuel for diesel engine. It is produced by transesterification process. Moringa oleifera seed oil has been extracted using n-hexane by solvent extraction method. The high flashpoint of Moringa oleifera oil is a beneficial safety feature so that it can safely be stored at room temperature. The study examines the production of biodiesel using Moringa oleifera seed oil with sodium silicate as catalyst and different co-solvents. The biodiesel produced from Moringa oleifera seed oil exhibits high yield using diethyl-ether as co-solvent with 60oC as the reaction temperature and 1 hour as the reaction time. Furthermore, the optimum ratio of methanol to oil is 7:1 and the amount of catalyst required to produce highest yield is 0.30 g. Moreover, the optimum ratio of methanol to co-solvent is 1:1 ratio. It has been found that the saponification value and free fatty acid are 170.2 mg of KOH/ g of oil and 0.33 %, respectively. The moisture content of biodiesel is 0.04% with higher calorific value when compared to diesel and vegetable oil. The pH and cloud point of biodiesel recorded are 7.37 and 18oC, respectively. All these values have been found to be within the range of American Standard for Testing Material for biodiesel. Only the acid value has fallen outside the ASTM limits. Hence, it can be concluded that biodiesel produced from Moringa oleifera seed oil has the potential to be an alternate fuel and the energy of the future. 

2021 ◽  
Vol 7 (1) ◽  
pp. 01-05
Author(s):  
Idoko Owoicho

Soap is sodium or potassium salt of fatty acid produced by saponification reaction using sodium or potassium hydroxide. It is used for cleaning, bathing, and washing. Soaps were produced from bleached palm oil (BPO) and Moringa oleifera seed oil using the cold process method with slight modification. The physicochemical properties (acid value, saponification value, peroxide value, iodine value and moisture content) of the oil were determined and it showed that the values are within the standard specifications. The quality of the soaps were also assessed by determining the physicochemical properties such as; free caustic alkali, matter insoluble in alcohol (MIA), pH, total fatty matter (TFM), cleaning properties, washing properties and foam stability. All the results obtained showed that the soaps analyzed are good soaps safe for the skin.


2021 ◽  
pp. 1-47
Author(s):  
Alessandra Marjorie de Oliveira ◽  
Márcia Maria dos Anjos Szczerepa ◽  
Maria Cristina Bronharo Tognim ◽  
Benício Alves de Abreu Filho ◽  
Lúcio Cardozo-Filho ◽  
...  

2011 ◽  
Vol 51 (3) ◽  
pp. 503-510 ◽  
Author(s):  
Babatunde S. Ogunsina ◽  
T. N. Indira ◽  
A. S. Bhatnagar ◽  
C. Radha ◽  
S. Debnath ◽  
...  

Biomolecules ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 616
Author(s):  
Bakari Hamadou ◽  
Djomdi ◽  
Ruben Zieba Falama ◽  
Cedric Delattre ◽  
Guillaume Pierre ◽  
...  

The aim of this work is to study the influence of the physicochemical characteristics of neem seeds, according to their mass and oil content, on the production of biodiesel. After the physical characterization of the seeds and extraction of the oil (triglycerides), biodiesel was produced from crude neem seed oil by transesterification with ethanol in the presence of sodium hydroxide. This study shows that the physicochemical characteristics of these seeds vary according to the origin of the samples. The seeds from Zidim, with a mass average of 200 seeds evaluated at 141.36 g and an almond content of 40.70%, have better characteristics compared to those collected in the city of Maroua, with average values evaluated at 128.00 g and 36.05%, respectively. Almonds have an average lipid content of 53.98 and 56.75% for the Maroua and Zidim samples, respectively. This study also reveals that neem oil, by its physicochemical characteristics, has a satisfactory quality for a valorization in the production of biodiesel. However, its relatively high free fatty acid content is a major drawback, which leads to a low yield of biodiesel, evaluated on average at 89.02%, and requires a desacidification operation to improve this yield. The analysis of biodiesel indicates physicochemical characteristics close and comparable to those of petrodiesel, particularly in terms of calorific value, density, kinematic viscosity, acid value, evaluated at 41.00 MJ/kg, 0.803, 4.42 cSt, and 0.130 mg/g, respectively.


2011 ◽  
Vol 10 (5) ◽  
pp. 409-414 ◽  
Author(s):  
H.A. Ogbunugafo ◽  
F.U. Eneh ◽  
A.N. Ozumba ◽  
M.N. Igwo-Ezikp ◽  
J. Okpuzor ◽  
...  

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