Kinetic Study of Alcoholysis of the Fatty Acids Catalyzed by Tin Chloride(II): An Alternative Catalyst for Biodiesel Production

2009 ◽  
Vol 23 (3) ◽  
pp. 1718-1722 ◽  
Author(s):  
Abiney L. Cardoso ◽  
Soraia C. G. Neves ◽  
Marcio J. da Silva
Keyword(s):  
Fatty Acids ◽  
Kinetic Study ◽  
Biodiesel Production ◽  
Tin Chloride

Esterification of free fatty acids with supercritical methanol for biodiesel production and related kinetic study

RSC Advances ◽  
2015 ◽  
Vol 5 (64) ◽  
pp. 52072-52078 ◽  
Author(s):  
Tianwei Jin ◽  
Bin Wang ◽  
Jinhui Zeng ◽  
Chun Yang ◽  
Yuqi Wang ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Reaction Time ◽  
Free Fatty Acids ◽  
Kinetic Study ◽  
Kinetic Analysis ◽  
Reaction Temperature ◽  
Raw Material ◽  
Biodiesel Production ◽  
Esterification Reaction ◽  
Supercritical Methanol

The interaction of raw material ratio, reaction temperature and reaction time on the esterification reaction of free fatty acids, and a kinetic analysis of it.

A heterogeneous acid-catalyzed process for biodiesel production from enzyme hydrolyzed fatty acids

AIChE Journal ◽  
2007 ◽  
Vol 54 (1) ◽  
pp. 327-336 ◽  
Author(s):  
Chia-Hung Su ◽  
Chun-Chong Fu ◽  
James Gomes ◽  
I-Ming Chu ◽  
Wen-Teng Wu
Keyword(s):  
Fatty Acids ◽  
Biodiesel Production ◽  
Acid Catalyzed

Assessing the potential of fatty acids produced by filamentous fungi as feedstock for biodiesel production

2017 ◽  
Vol 47 (10) ◽  
pp. 970-976 ◽  
Author(s):  
Juan Daniel Rivaldi ◽  
Ana Karine F. Carvalho ◽  
Leyvison Rafael V. da Conceição ◽  
Heizir F. de Castro
Keyword(s):  
Fatty Acids ◽  
Filamentous Fungi ◽  
Biodiesel Production

scholarly journals Monitoring of Biochemical Compounds and Fatty Acid in Marine Microalgae from the East Coast of Thailand

2018 ◽  
Vol 17 (4) ◽  
pp. 334-347
Author(s):  
Kwanchayanawish MACHANA ◽  
Amonrat KANOKRUNG ◽  
Sirinart SRICHAN ◽  
Boonyadist VONGSAK ◽  
Maliwan KUTAKO ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
East Coast ◽  
Predictive Accuracy ◽  
Partial Least Square ◽  
Least Square ◽  
Biodiesel Production ◽  
Fatty Acid Profiles ◽  
Omega 3 ◽  
Ft Ir

Determinations of fatty acid profiles of five microalgae; Amphora sp., Chaetoceros sp., Melosira sp., Bellerochae sp., and Lithodesmium sp., from the east coast of Thailand were evaluated by conventional Gas Chromatography-Flame Ionization Detector (GC-FID). The results exhibited that the fatty acids suitable for biodiesel production were the most frequent entities encountered in all microalgae profiles. The GC chromatogram of fatty acid profiles in microalgae showed that both Amphora sp. and Chaetoceros sp. comprised essential omega-3 fatty acids, eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA). Additionally, this study assessed whether Fourier Transform infrared (FT-IR) microspectroscopy could be used to evaluate and monitor the biochemical compositions of microalgae, including lipid, carbohydrate, and protein profiles, by using colorimetric methods. Results showed that FT-IR spectra combined with biochemical values of lipid, carbohydrate, and protein contents were used as predictive models generated by partial least square (PLS) regression. Cross-validation of the lipid, protein, and carbohydrate models showed high degrees of statistical accuracy with RMSECV values of approximately 0.5 - 3.22 %, and a coefficient of regression between the actual and predicted values of lipids, carbohydrates, and proteins were 92.66, 95.73, and 96.43 %, respectively. The RPD values were all high (> 3), indicating good predictive accuracy. This study suggested that FT-IR could be a tool for the simultaneous measurement of microalgae composition of biochemical contents in microalgae cells.

scholarly journals Effect of nitrogen and potassium fertilization on the production and quality of oil in Jatropha curcas L. under the dry and warm climate conditions of Colombia

2014 ◽  
Vol 32 (2) ◽  
pp. 255-265 ◽  
Author(s):  
Omar Montenegro R. ◽  
Stanislav Magnitskiy ◽  
Martha C. Henao T.
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Jatropha Curcas ◽  
Oil Content ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Fruit Production ◽  
Biodiesel Production ◽  
Oil Composition

This study was conducted to assess fruit and seed yield, oil content and oil composition of Jatropha curcas fertilized with different doses of nitrogen and potassium in Espinal (Tolima, Colombia). The yields ranged from 4,570 to 8,800 kg ha-1 of fruits and from 2,430 to 4,746 kg ha-1 of seeds. These yields showed that the fertilizer dose of 150 kg ha-1 N + 120 kg ha-1K increased fruit production by 92% and seed production by 95%, which represents an increase of about 100% in oil production, which increased from 947 to 1,900 kg ha-1. The total oil content in the seeds ranged from 38.7 to 40.1% (w/w) with a high content of the unsaturated fatty acids oleic (> 47%) and linoleic acid (> 29%). The highest content of oleic acid in the seed oil was from the unfertilized control plants and plants with an application of 100 kg ha-1 of N and 60 kg ha-1 of K, with an average of 48%. The lowest content of oleic acid was registered when a low dose of nitrogen and a high level of potassium were applied at a ratio of 1:2.4 and doses of 50 kg ha-1 N + 120 kg ha-1 K, respectively. Low contents of the saturated fatty acids palmitic (13.4%) and stearic (7.26%) were obtained, making this oil suitable for biodiesel production. The nitrogen was a more important nutrient for the production and quality of oil in J. curcas than potassium under the studied conditions of soil and climate.

scholarly journals Effects of nitrogen, phosphorus, EDTA and sodium chloride on biomass and lipid accumulation of Chaetomorpha aerea

2020 ◽  
pp. 152-158
Author(s):  
Gour Gopal Satpati ◽  
Ruma Pal
Keyword(s):  
Fatty Acids ◽  
Sodium Chloride ◽  
Total Lipid ◽  
Lipid Accumulation ◽  
Saturated Fatty Acids ◽  
Stress Conditions ◽  
Biodiesel Production ◽  
Cultural Conditions ◽  
Chaetomorpha Aerea ◽  
Nitrogen Phosphorus

The increase of total lipid and fatty acids production was studied under different nutrient stress conditions using the macroalga, Chaetomorpha aerea. The effects of nitrogen, phosphorus, ethylene diamine tetra-acetate and sodium chloride on the growth and lipid accumulation were systematically investigated in laboratory conditions. The biomass was harvested at different stages of cultivation and assessed. The maximum changes of growth and lipid accumulation were observed in the exponential phase at different cultural conditions. The two-fold increase of total lipid was found in the order of 28.27±0.04 % (at 0.1 g/L nitrogen) > 27.30±0.37 % (at 0.5 g/L of phosphorus) > 25.86±0.77 % (at 0.05 g/L of EDTA)> 24.37±0.04 % (at 0.05 g/L NaCl) on 8th day of cultivation. The fatty acids were identified and quantified by gas chromatography mass spectrometry (GC-MS). The alga produces significantly high amount of monounsaturated fatty acid (MUFA) and saturated fatty acids (SFA) than the polyunsaturated fatty acids (PUFA) in different cultural conditions. The elevated levels of C16:1, C18:1 and C20:1 was identified under nitrate, phosphate and salt stress conditions, which are more suitable for biodiesel production.

Removal of free fatty acids in Pongamia Pinnata (Karanja) oil using divinylbenzene-styrene copolymer resins for biodiesel production

2012 ◽  
Vol 37 ◽  
pp. 335-341 ◽  
Author(s):  
V. Sathya Selva Bala ◽  
K.V. Thiruvengadaravi ◽  
P. Senthil Kumar ◽  
M.P. Premkumar ◽  
Vaidyanathan Vinoth kumar ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Free Fatty Acids ◽  
Pongamia Pinnata ◽  
Biodiesel Production ◽  
Styrene Copolymer ◽  
Karanja Oil
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