Synthesis of biodiesel from Jatropha curcas oil using waste eggshell and study of its fuel properties

RSC Advances ◽  
2015 ◽  
Vol 5 (78) ◽  
pp. 63596-63604 ◽  
Author(s):  
Supriya B. Chavan ◽  
Rajendra R. Kumbhar ◽  
D. Madhu ◽  
Bhaskar Singh ◽  
Yogesh C. Sharma

High purity calcium oxide (CaO) was prepared from eggshell and was used as a catalyst for the production of biodiesel.

2019 ◽  
Vol 3 (1) ◽  
pp. 59-64
Author(s):  
Ravindra Verma ◽  
Dinesh K. Sharma ◽  
Prakash S. Bisen

Background: Jatropha curcas is one of the most suitable plants which seeds are nonedible in nature but rich in oil. Around 350 oil bearing crops are found suitable as potential alternative fuels for diesel engine. Non-edible crop Jatropha curcas has been identified by many experts for biodiesel production in many countries like India. Objective: The objective of this study is to find out the composition of Jatropha curcas oil and its relation with engine parameters. This research covers selected aspects of physical and chemical relation of fatty acid composition of Jatropha curcas oil and its fuel properties. Methods: A gas-chromatograph with high resolution mass spectrometer was used to determine the free fatty acid composition of the Jatropha curcas oil sample. The column length, diameter and thickness were 30m, 0.25mm and 0.25μm respectively. Helium gas was used as carrier gas, column flow of 1.80 mL/min for the GC. Results: The major fatty acids found in Jatropha curcas crude oil were the oleic (3.81%), linoleic (50%), palmitic fatty (35.66%) acid. Some physical and chemical characteristics have been evaluated and found suitable for the application in engine. Oxidation stability oxidizability and cetane number has been calculated as 4.949, 1.076 and found 55.856. Conclusion: The physical and chemical properties of Jatropha crude oil are similar to the biodiesel except the viscosity; therefore, further processing is required. The fuel properties of Jatropha Curcas oil based biodiesel were found to be within the limits of American Society for Testing and Materials (ASTM) specifications for biodiesel and diesel fuel.


Rapid Industrialization has led to a drastic decline in fossil fuels giving rise to the need for environment-friendly biodiesel to fulfill the industrial appetite. Biodiesel from Jatropha curcas has significant potential for being an alternative fuel. The type of catalyst used for the production of biodiesel determines its fuel properties and is considered as a factor affecting its yield. The main objective of the current research work was to compare biodiesel properties obtained from the homogeneous and heterogeneous base catalyst. The properties were compared with ASTM standardized fuel properties to validate its potential as a replacement for diesel. In this study, the base-catalyzed transesterification process was used as a method to produce biodiesel from Jatropha curcas oil. KOH and CaO were used as homogenous and heterogeneous base catalysts. The biodiesel thus obtained is subjected to various characterization techniques such as acid number, fire point, flash point, cloud point, pour point, and also were checked for fluid characteristics like density and specific gravity. The results obtained (Example: Fire point: 126, Specific gravity: 0.87) using KOH catalyst were promising as the values were in line with ASTM standard. Therefore, the major outcome of this research work is that a systematic comparison between two different catalysts has been carried out and it has been observed that KOH is an optimum catalyst that is economical and can be scaled up to produce maximum yield. This process can be considered as a zero-waste process as the by-product (glycerin) can further be considered as a raw material to produce commercial-grade products like bioplastics and soap. The important future prospects of this research work is that., as novel methods are taking centre stage to produce biodiesel through environmentally and economically acceptable processes., the jatropha-based biodiesel using effective base catalyst (KOH) through transesterification process will be taking a centre stage as it is found to be much safer fuel than diesel because of its higher flash point and fire point, decreases the dependence on imported petroleum and increases indigenous energy sufficiency


2021 ◽  
Vol 46 ◽  
pp. 101259
Author(s):  
Anu Kumar Das ◽  
Aniket Shivaji Chavan ◽  
Dayal Ch. Shill ◽  
Saibal Chatterjee

Author(s):  
Gajanan Sahu ◽  
Sujan Saha ◽  
Sudipta Datta ◽  
Prakash D. Chavan ◽  
Vishal Chauhan ◽  
...  

2016 ◽  
Vol 44 (1) ◽  
pp. 76-83 ◽  
Author(s):  
Nan LUO ◽  
Yang CAO ◽  
Jin LI ◽  
Wei GUO ◽  
Zi-wei ZHAO

2021 ◽  
pp. 37-46
Author(s):  
Fredy Torres Mejía ◽  
Juan Alexander Torres Mejía ◽  
Henry Edgardo Maradiaga Galeano ◽  
Claudia López Toro

The aim of this work is to evaluate the performance of the extraction and mechanical filtering of Jatropha curcas oil and to evaluate the primary energy of the raw material resulting from the process, this is a qualitative-quantitative study of transversal order based on measurements and analysis of the process in situ: The following factors were evaluated as factors: weight of oil per seed processed, weight of pressed cake, and measurements in the filtering process, from which a balance of matter of the process used was constructed, and the energy valuation of the oil and pressed cake, energy was used as the response variable, measured in Tons of Oil Equivalent (TEP), Barrels of Oil Equivalent (BEP), and tons of Carbon Dioxide Equivalent (Ton CO2eq). The seed used is Creole, the one existing in the area, the extraction was carried out in a KEK-P0101 press, and a KEK-F0090 filter. The collected seeds were dried and then discarded, the average shell weight is 40% of the total weight of the dry seed, from the oil extraction process a yield of 18.6% was obtained using seed with 5.8% humidity, and from the oil filtering process, when it passed through the filter, no weight loss in kg was obtained; finally, the equivalent primary energy valuation of one ton of oil is 39076. 39 MJTon-1, which is equivalent to 0.94 TEP, 2.90 Ton CO2 eq, and 20.87 BEP; in the same way one ton of Jatropha cake represents 15969.30 MJ, equivalent to 0.38 TEP, 1.18 Ton CO2 eq, and 8. 53 BEP, and the total primary energy between one ton of oil and one ton of Jatropha cake after oil extraction together contain 55045.61 MJTon-1, equivalent to 1.32 TEP, 4.08 Ton CO2 eq, and 29.41 BEP.


2010 ◽  
Vol 10 (3) ◽  
pp. 396-400 ◽  
Author(s):  
Abdullah Abdullah ◽  
D.R. Wicakso ◽  
A.B. Junaidi ◽  
Badruzsaufari Badruzsaufari

Nitration of biodiesel from Jatropha curcas oil using mixture of HNO3 and H2SO4 had been done in an attempt to obtain a cetane improver or cetane number enhancer. The nitration was carried out by varying the numbers of moles of sulphuric acid, nitric acid, temperature and time. The process was conducted in a round bottom flask reactor that equipped with a magnetic stirrer and a ball cooler on a water batch. The mixture of H2SO4 and HNO3 was placed in the reactor and subsequently added slowly with biodiesel drop by drop. The results showed that increasing the mole numbers of sulphuric acid tends to reduce the yield or volume and total N of nitrated biodiesel. Increasing the number of moles of nitric acid tends to increase the yield, but decrease the value of total N. While increasing of temperature and reaction time tends to reduce the yield and total N. From FTIR spectra product was estimated as a mixture of esters of alkyl nitrates and nitro. From the testing of cetane number it can be predicted that nitrated biodiesel potentially as cetane improver.


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