scholarly journals OPTIMIZATION OF FATTY ACID GENERATION USING PARAMETRIC ANALYSIS

2020 ◽  
Vol 7 (6) ◽  
pp. 120-131
Author(s):  
Shraddha Prashant Thakare ◽  
Harsha S ◽  
A S Kulkarni
Keyword(s):  
Fatty Acid ◽  
Reaction Time ◽  
Methyl Ester ◽  
Reaction Rate Constant ◽  
Effect Of Temperature ◽  
Heat Of Reaction ◽  
Flax Seed ◽  
Influencing Parameters ◽  
Time Buffer ◽  
Enzyme Load

The objective of this study is to optimize the different parameters to carry out analysis of fatty acids. A kinetic was observed for first order enzymatic hydrolysis of flax seed methyl ester was carried out by using Rhizomucor michei. In this study the analysis of hydrolysis was carried out by varying the temperature (30-40oC) and enzyme load (2-5%). The optimal condition were found to temperature 50oC, 6h reaction time, buffer to flax seed methyl ester ratio 1.5:1(v/w) and 4% enzyme load to achieve a maximum hydrolysis conversion of 97.56%. The effect of temperature on the reaction rate constant and equilibrium constant has been determined using Arrhenius equation. The heat of reaction was found 14.516 KJ/mol. Taguchi's design of experiment L16 and L9 orthogonal array was performed to optimize hydrolysis reaction conditions. Rate of reaction, effect of temperature, enzyme modifier, pH and oil to buffer ratio were considered as a primary influencing parameters which effects the percentage of hydrolysis and fatty acid formed. From the analysis of variance, the influencing parameters on production of fatty acid were reaction time and enzyme modifier. The predicted conversion was found in good rectification with experimental values having R2=0.9945 and R2=0.983. Maximum fatty acid formed was 98.76% from methyl ester and 98.92% from oil.

scholarly journals Catalyst-free production of fatty acid ethyl esters (FAEE) from macauba pulp oil

2021 ◽  
Vol 72 (1) ◽  
pp. e398
Author(s):  
C. Silva ◽  
T.A.S. Colonelli ◽  
C.P. Trentini ◽  
N. Postaue ◽  
D.A. Zempulski ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Reaction Time ◽  
Free Fatty Acids ◽  
Reaction Medium ◽  
Fatty Acid Ethyl Esters ◽  
Ethyl Esters ◽  
Effect Of Temperature ◽  
Residence Times ◽  
Mass Ratio

In this study, the production of fatty acid ethyl esters (FAEE) from macauba pulp oil and pressurized ethanol was investigated. The experiments were conducted without the addition of catalyst, at 20 MPa, to determine the effect of temperature (200 to 300 °C) and the oil to ethanol mass ratio (1:1 and 1:2) on the FAEE content and different residence times (10 to 45 min). The effect of the addition of n-hexane to the oil (20 wt%) as a co-solvent was also evaluated. The use of high temperatures (275 and 300 °C) resulted in high FAEE content (∼90%). Increasing the amount of ethanol in the reaction medium contributed to the formation of esters only at operating temperatures of 200 to 250 °C. It was also observed that with the addition of co-solvent (in the oil) it was possible to obtain high amounts of FAEE in a shorter reaction time. In addition, a low content of unreacted compounds (∼8.0%) and the conversion of ∼90 and 99% of the free fatty acids and triglycerides were observed, respectively.

Use of Waste Coconut Oil Obtained from Waste Water Pond of Coconut Milk Plant to Produce Biodiesel

2014 ◽  
Vol 625 ◽  
pp. 737-740
Author(s):  
Pinuma Kaewruksa ◽  
Vittaya Punsuvon
Keyword(s):  
Waste Water ◽  
Fatty Acid ◽  
Reaction Time ◽  
Free Fatty Acid ◽  
Methyl Ester ◽  
Acid Methyl Ester ◽  
Coconut Oil ◽  
High Free Fatty Acid ◽  
Acid Methyl ◽  
Water Pond

Waste coconut oil obtained from waste water pond contains high free fatty acid (FFA) which is not suitable to produce biodiesel via transesterification. The two steps of reaction (esterification and transesterification) were used to produce biodiesel from waste coconut oil. The result showed that FFA decreased from 92.95%wt to nearby 2%wt under the conditions of 80%vol of methanol to oil, 4%wt of hydrochloric acid and 4 h of reaction time in esterification step. In addition 95.34%wt conversion of fatty acid methyl ester (FAME) could be achieved in 1 h when 20%vol methanol to oil and 0.5%wt of sodium hydroxide in transesterification step. The fuel properties of waste coconut oil biodiesel were mostly met well within the ranges specified in biodiesel standard.

Evaluation of the Impact of Fatty Acid Methyl Ester (FAME) Contamination on the Thermal Stability of Jet A

2013 ◽  
Author(s):  
Jr Morris ◽  
Shardo Robert W. ◽  
Higgins James ◽  
Cook Kim ◽  
Tanner Rhonda ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Fatty Acid ◽  
Methyl Ester ◽  
Fatty Acid Methyl Ester ◽  
Acid Methyl Ester ◽  
Acid Methyl ◽  
The Impact ◽  
Thermal Stability Of

Studies in the Vulcanization of Rubber. I—Thermochemistry of Vulcanization of Rubber

1930 ◽  
Vol 3 (4) ◽  
pp. 631-639
Author(s):  
John T. Blake
Keyword(s):  
Free Energy ◽  
Internal Energy ◽  
Chemical Reaction ◽  
Effect Of Temperature ◽  
Heat Of Reaction ◽  
Chemical Affinity ◽  
Direct Measure ◽  
Total Change

Abstract WHEN a chemical reaction takes place, it is usually accompanied by an absorption or evolution of heat. The amount of the heat interchange is not a direct measure of the chemical affinity involved in the reaction, nor is it a measure of the free energy of the reaction. The heat of reaction, however, is a measure of the total change in internal energy and is of importance, therefore, in calculating the effect of temperature on a reaction and in elucidating the mechanism of it.

scholarly journals Unique Honey Bee (Apis mellifera) Hive Component-Based Communities as Detected by a Hybrid of Phospholipid Fatty-Acid and Fatty-Acid Methyl Ester Analyses

PLoS ONE ◽  
2015 ◽  
Vol 10 (4) ◽  
pp. e0121697 ◽  
Author(s):  
Kirk J. Grubbs ◽  
Jarrod J. Scott ◽  
Kevin J. Budsberg ◽  
Harry Read ◽  
Teri C. Balser ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Apis Mellifera ◽  
Methyl Ester ◽  
Fatty Acid Methyl Ester ◽  
Honey Bee ◽  
Phospholipid Fatty Acid ◽  
Acid Methyl Ester ◽  
Acid Methyl
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