scholarly journals The Potent of Carrier Oil on Pretreatment of Crude Jatropha Curcas Oil

2020 ◽  
Vol 5 (1) ◽  
pp. 45
Author(s):  
Dini Kurniawati ◽  
Iis Siti Aisyah
Keyword(s):  
Jatropha Curcas ◽  
Kinematic Viscosity ◽  
Seed Oil ◽  
The Other ◽  
Jatropha Oil ◽  
Food Sector ◽  
Jatropha Curcas Oil ◽  
Lubricant Oil ◽  
Bio Oil ◽  
Density Values

Jatropha curcas oil is a seed oil or bio-oil, which has advantages compared to others plant’s seed-oil.  The advantage of this oil is due to the fact that Jatropha oil does not compete with the food sector. In this research, the potential carrier oil testing was conducted to seek a way in improving the performance of Jatropha oil as lubricant oil, coolant or biodiesel. For this purpose, Jatropha oil was mixed with the other carrier oils in the variation of 0 – 45 %. Each variation was tested to obtain kinematic viscosity and density values. The results of this research was the carrier oils has the potential to be used as the mixing material since it can improve the physical properties of Jatropha oil, before the next process. Kinematic viscosity and density of Jatropha oil decreases as more percentage of mixed carrier oil was added.

scholarly journals Rapid Alcoholysis of Jatropha Curcas Oil for Biodiesel Production Using Ultrasound Irradiation

2017 ◽  
Vol 12 (3) ◽  
pp. 306
Author(s):  
Muh. Irwan ◽  
Hamdani Saidi ◽  
M. A. Rachman ◽  
Ramli Ramli ◽  
Marlinda Marlinda
Keyword(s):  
Jatropha Curcas ◽  
Isopropyl Alcohol ◽  
Reaction Times ◽  
Ultrasound Irradiation ◽  
Biodiesel Production ◽  
Molar Ratio ◽  
Jatropha Oil ◽  
Jatropha Curcas Oil ◽  
Tert Butanol ◽  
Biodiesel Synthesis

The biodiesel synthesis through alcoholysis process of triglyceride from Jatropha curcas using different type of alcohol, such as: methanol, ethanol, isopropyl alcohol and tert-butanol, was conducted in the presence of potassium hydroxide (KOH) as catalyst under 35 kHz frequency ultrasound irradiation. The optimum conditions, such as: alcohol to jatropha oil molar ratio, concentration of catalyst, reaction temperature, and reaction time, were found  to be 7:1 of alcohol to jatropha oil molar ratio, 0.5 % of KOH, temperature of reaction at 35 0C, within the reaction times of 15 minutes. The results obtained for the different types of alcohol were 62.77 %, 57.93 %, 51.64 %, and 46.77 % for methanol, ethanol, isopropyl alcohol, and tert-butanol, respectively. Copyright © 2017 BCREC Group. All rights reservedReceived: 11st November 2016; Revised: 8th March 2017; Accepted: 9th March 2017; Available online: 27th October 2017; Published regularly: December 2017How to Cite: Irwan, M., Saidi, H., Rachman, M.A., Ramli, R., Marlinda, M. (2017). Rapid Alcoholysis of Jatropha Curcas Oil for Biodiesel Production Using Ultrasound Irradiation. Bulletin of Chemical Reaction Engineering & Catalysis, 12 (3): 306-311 (doi:10.9767/bcrec.12.3.801.306-311) 

scholarly journals Kinetika reaksi hidroksilasi epoksi minyak jarak pagar menggunakan katalis bentonit

2018 ◽  
Vol 12 (2) ◽  
pp. 257
Author(s):  
Ratni Ariatmi Nugrahani ◽  
Flora Elvistia Firdaus ◽  
Yeti Widyawati ◽  
Hana Firginia ◽  
Riris Purnama
Keyword(s):  
Jatropha Curcas ◽  
Ring Opening ◽  
Reaction System ◽  
Chemical Properties ◽  
Oxirane Ring ◽  
Hydroxyl Groups ◽  
Jatropha Oil ◽  
Jatropha Curcas Oil ◽  
Ring Opening Reaction ◽  
Kinetics Of

Hydroxylation kinetics of jatropha oil epoxy using bentonite catalyst. Based on chemical properties such as fatty acid compositions and iodium value, jatropha curcas oil can potentially be applied as lubricant. Unsaturation of this oil decreases its  oxidative stability. Improvement of this property may be done by chemical modification involving epoxidation and oxirane ring opening with bentonite catalyst, forming polyol by hydroxylation. The purpose of this research is to characterize the products and kinetics of the oxirane ring opening reaction. The results of chemical analysis by titration for residual oxiranes and hydroxyl formed in the reaction system, was showed using ir spectroscopy. Their effects were to reduce epoxy groups at 824-842 cm−1 and appearance of hydroxyl groups at the oh characteristic absorption peak from 3450-3800 cm−1. The oxirane number of epoxidized jatropha oil was reduced from 4.7% to 0.05% by ring opening. The kinetics of the oxirane ring opening of epoxidized jatropha curcas oil by methanol with bentonite was studied at 50, 60, and 65 oc. The oxirane ring opening analyzed by the pseudo-homogeneous approach followed a pseudo-first order kinetics. From the temperature dependence of the  rate, reaction enthalpy (δh) and activation energy (δea) were found to be 8,27 kcal mol−1 and 7,63 kcal mol−1, respectively.Keywords: epoxidized jatropha curcas, hydroxyl, oxirane, bentonite, kinetic AbstrakBerdasarkan sifat-sifat komposisi asam lemak dan bilangan iodium, minyak jarak pagar (Jatropha curcas) berpotensi menjadi bahan dasar pelumas. Meskipun demikian, kandungan ikatan tidak jenuh minyak ini menurunkan kestabilan oksidasinya. Kestabilan oksidasi ini dapat diperbaiki melalui modifikasi kimiawi dengan reaksi epoksidasi yang menghilangkan ikatan rangkap.  Ini dilakukan melalui reaksi hidroksilasi dengan membuka ikatan gugus oksirana epoksi. Tujuan penelitian ini adalah mengkarakterisasi produk, serta mempelajari kinetika reaksi pembukaan cincin oksirana oleh metanol dengan katalis bentonit untuk membentuk poliol. Hasil analisis FTIR produk reaksi menunjukkan penurunan intensitas gugus epoksi pada bilangan gelombang 824-842 cm−1 dan munculnya gugus hidroksil pada bilangan gelombang 3450-3800 cm−1. Bilangan oksirana epoksi jarak pagar berkurang dari 4,7% menjadi 0,05% setelah pembukaan cincin. Bilangan hidroksil poliol adalah sebesar 165,77. Pengukuran kinetika pembukaan cincin pada gugus oksirana dari epoksi jarak pagar dilakukan pada 50, 60, dan 65oC. Analisis data laju reaksi yang dianalisis dengan pendekatan sistem pseudohomogen menunjukkan bahwa reaksi mengikut kinetika orde-1 semu. Dari perubahan laju reaksi terhadap temperatur diperoleh nilai entalpi reaksi dan energi aktivasi sebesar masing-masing 8,27 kkal mol-1 dan 7,63 kkal mol-1.Kata kunci: epoksi jarak pagar, hidroksil, oksirana, bentonit, kinetika

Jatropha Curcas oil for distribution transformer – A comparative review

2021 ◽  
Vol 46 ◽  
pp. 101259
Author(s):  
Anu Kumar Das ◽  
Aniket Shivaji Chavan ◽  
Dayal Ch. Shill ◽  
Saibal Chatterjee
Keyword(s):  
Jatropha Curcas ◽  
Distribution Transformer ◽  
Jatropha Curcas Oil ◽  
Comparative Review

scholarly journals Evaluation of thermo-oxidized Jatropha bio-oil in lubrication of actual wet clutch materials

2020 ◽  
pp. 135065012098146
Author(s):  
Leonardo I Farfan-Cabrera ◽  
Ezequiel A Gallardo-Hernández ◽  
José Pérez-González ◽  
Benjamín M Marín-Santibáñez ◽  
Roger Lewis ◽  
...  
Keyword(s):  
Automatic Transmission ◽  
Viscosity Index ◽  
Jatropha Oil ◽  
Oxidative Aging ◽  
Lubrication Regime ◽  
Viscosity Increase ◽  
Bio Oil ◽  
Wet Clutch ◽  
Transmission Fluid ◽  
Pin On Disk

In this work, an assessment of the performance of thermo-oxidated Jatropha oil as a lubricant for actual wet clutch materials was performed and compared with a commercial automatic transmission fluid. For this, Jatropha oil, a commercial automatic transmission fluid and a blend of 20 vol% Jatropha oil–80 vol% automatic transmission fluid were subjected to thermo-oxidative aging at 26 °C and 100 °C, followed by a pin-on-disk testing with disk samples from an actual wet clutch. Evaluation of the film thickness at the sliding interface resulted in a boundary lubrication regime for all the tests. The changes in oxidation, viscosity, and a viscosity index of the samples were evaluated along with friction coefficients at various sliding speeds. Jatropha oil was the most sensitive to thermo-oxidation. Jatropha oil and the blend showed a higher viscosity increase than automatic transmission fluid with thermo-oxidation, while the viscosity index of all oils was decreased considerably, Jatropha oil and the blend being the most reduced. Finally, the anti-shudder property, as measured by the change in the friction coefficient with a sliding speed, of Jatropha oil and automatic transmission fluid was improved by thermo-oxidation at 26 °C but worsened at 100 °C, meanwhile it was barely affected in the blend. Therefore, these results indicate that using pure Jatropha oil as automatic transmission fluid would be unsuitable, but blending it with automatic transmission fluids in specific proportions may be apposite for improving the friction properties of wet clutches even under thermo-oxidative conditions.

Preparation of Ni2P/Zr-MCM-41 catalyst and its performance in the hydrodeoxygenation of Jatropha curcas oil

2016 ◽  
Vol 44 (1) ◽  
pp. 76-83 ◽  
Author(s):  
Nan LUO ◽  
Yang CAO ◽  
Jin LI ◽  
Wei GUO ◽  
Zi-wei ZHAO
Keyword(s):  
Jatropha Curcas ◽  
Jatropha Curcas Oil ◽  
Mcm 41

The population dynamics of metacercariae of Apatemon gracilis (Trematoda: Digenea) in three species of lake-dwelling leeches

Parasitology ◽  
1986 ◽  
Vol 93 (3) ◽  
pp. 517-530 ◽  
Author(s):  
S. M. Spelling ◽  
J. O. Young
Keyword(s):  
Population Dynamics ◽  
Relative Density ◽  
Sexual Maturity ◽  
Egg Production ◽  
Seasonal Pattern ◽  
Distinct Pattern ◽  
The Other ◽  
Mean Intensity ◽  
Density Values ◽  
Host Mortality

SUMMARYMonthly samples of the leeches Erpobdella octoculata, Glossiphonia complanata and Helobdella stagnalis were taken over a two-year period from an eutrophic, English lake to detect metacercariae of the trematode, Apatemon gracilis. In each cohort of each of the three leeches, prevalence was low in young individuals, rose to a peak in autumn/winter, and then declined until the cohort had almost died out; in E. octoculata and H. stagnalis a final brief increase occurred. Mean intensity and relative density values followed a similar seasonal pattern of change to that of prevalence in these last two species, but in G. complanata values fluctuated irregularly with no distinct pattern. The frequency distribution of the parasite in G. complanata was highly over-dispersed, but less so in the other two species. Infected E. octoculata reached sexual maturity. The parasite reduced egg production in G. complanata and H. stagnalis, but only by maximum values of 2·5 and 9% respectively. This reduction in fecundity is low compared to the subsequent high mortality, at 95% or more, of newly recruited young from as yet unidentified causes. Parasite-related host mortality was difficult to assess in young leeches, but there was some evidence for its occurrence in older leeches of E. octoculata and H. stagnalis. However, this is unlikely to play a prominent role in the control and regulation of lacustrine leech populations.

Composition of N – Alkanes and Polynuclear Aromatic Hydrocarbons in Jatropha curcas Seed Oil from Different Locations

2013 ◽  
Vol 824 ◽  
pp. 311-317
Author(s):  
E.T. Akhihiero ◽  
E.O. Aluyor ◽  
T.O.K. Audu
Keyword(s):  
Gas Chromatography ◽  
Aromatic Hydrocarbons ◽  
Jatropha Curcas ◽  
Seed Oil ◽  
Polynuclear Aromatic Hydrocarbons ◽  
Polynuclear Aromatic Hydrocarbon ◽  
Ionization Detector ◽  
Flame Ionization ◽  
Hydrocarbon Content ◽  
Edo State

The hydrocarbon content of Jatropha curcas seed oil obtained from Oleh Community in Delta State, NIFOR farm in Edo State and Ikabigbo in Edo State represented as samples X, Y and Z respectively were investigated using Gas Chromatography with flame ionization detector. The predominant alkanes found in the oil samples are n-Eicosane (C20H42) and n-Docosane (C22H46), while the major polynuclear aromatic hydrocarbon found in the oil samples is chrysene. Sample X has the highest percentage of n-Eicosane (65.72%), sample Y has 35.56% n-Eicosane while sample Z has the lowest n-Eicosane (0.23%). Sample Z has the highest percentage of n-Docosane (91.38%), sample Y has 60.11% n-Docosane with sample X being the lowest (22.65%). The percentage of chrysene in sample Y is highest (100%), sample X has 97.47% while sample Z has the lowest percentage of chrysene (44.75%).

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