ChemInform Abstract: Heterogeneous Catalysts for the Transformation of Fatty Acid Triglycerides and Their Derivatives to Fuel Hydrocarbons

ChemInform ◽  
2012 ◽  
Vol 43 (16) ◽  
pp. no-no
Author(s):  
V. A. Yakovlev ◽  
S. A. Khromova ◽  
V. I. Bukhtiyarov
Keyword(s):  
Fatty Acid ◽  
Heterogeneous Catalysts ◽  
Fatty Acid Triglycerides ◽  
Fuel Hydrocarbons

Calculation of the molar heat of formation of fatty acid triglycerides from the heat of combustion of vegetable oils

2021 ◽  
Vol 11 (4) ◽  
pp. 8-15
Author(s):  
Łukasz Jęczmionek
Keyword(s):  
Fatty Acid ◽  
Vegetable Oils ◽  
Calculation Method ◽  
Formation Enthalpy ◽  
Heat Of Formation ◽  
Heat Of Combustion ◽  
Calorimetric Method ◽  
Combustion Heat ◽  
Natural Oils ◽  
Fatty Acid Triglycerides

The results of the research on estimation the molar heat of formation (enthalpy) of model triglycerides found in natural oils and fats are presented. In this work a calculation method and calorimetric one were used. It was found that combustion heat values determined by separate methods are comparable; their difference was a maximum of 155 kJ/kg, and thus was significantly lower than the tolerance for the calorimetric method according to PN 86/C-04062.

scholarly journals Trends in Widely Used Catalysts for Fatty Acid Methyl Esters (FAME) Production: A Review

Catalysts ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1085
Author(s):  
Shafaq Nisar ◽  
Muhammad Asif Hanif ◽  
Umer Rashid ◽  
Asma Hanif ◽  
Muhammad Nadeem Akhtar ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Large Scale ◽  
Heterogeneous Catalysts ◽  
Fatty Acid Methyl Esters ◽  
Low Cost ◽  
Methyl Esters ◽  
Acid Catalyst ◽  
Product Formation ◽  
Biodiesel Production ◽  
Acid Methyl

The effective transesterification process to produce fatty acid methyl esters (FAME) requires the use of low-cost, less corrosive, environmentally friendly and effective catalysts. Currently, worldwide biodiesel production revolves around the use of alkaline and acidic catalysts employed in heterogeneous and homogeneous phases. Homogeneous catalysts (soluble catalysts) for FAME production have been widespread for a while, but solid catalysts (heterogeneous catalysts) are a newer development for FAME production. The rate of reaction is much increased when homogeneous basic catalysts are used, but the main drawback is the cost of the process which arises due to the separation of catalysts from the reaction media after product formation. A promising field for catalytic biodiesel production is the use of heteropoly acids (HPAs) and polyoxometalate compounds. The flexibility of their structures and super acidic properties can be enhanced by incorporation of polyoxometalate anions into the complex proton acids. This pseudo liquid phase makes it possible for nearly all mobile protons to take part in the catalysis process. Carbonaceous materials which are obtained after sulfonation show promising catalytic activity towards the transesterification process. Another promising heterogeneous acid catalyst used for FAME production is vanadium phosphate. Furthermore, biocatalysts are receiving attention for large-scale FAME production in which lipase is the most common one used successfully This review critically describes the most important homogeneous and heterogeneous catalysts used in the current FAME production, with future directions for their use.

Sulfide Catalysts for Production of Motor Fuels from Fatty Acid Triglycerides

2018 ◽  
Vol 91 (12) ◽  
pp. 1905-1911 ◽  
Author(s):  
A. A. Porsin ◽  
E. N. Vlasova ◽  
G. A. Bukhtiyarova ◽  
A. L. Nuzhdin ◽  
V. I. Bukhtiyarov
Keyword(s):  
Fatty Acid ◽  
Sulfide Catalysts ◽  
Motor Fuels ◽  
Fatty Acid Triglycerides

Triglyceride Fatty Acid Chain Length Influences the Post Prandial Rise in Serum Intestinal Alkaline Phosphatase Activity

1992 ◽  
Vol 29 (3) ◽  
pp. 287-291 ◽  
Author(s):  
A P Day ◽  
M D Feher ◽  
R Chopra ◽  
P D Mayne
Keyword(s):  
Fatty Acid ◽  
Chain Length ◽  
Chain Fatty Acid ◽  
Intestinal Alkaline Phosphatase ◽  
Long Chain Fatty Acid ◽  
Fatty Acid Chain Length ◽  
Healthy Humans ◽  
Fatty Acid Chain ◽  
Long Chain ◽  
Fatty Acid Triglycerides

Intestinal alkaline phosphatase (IALP) activity rises following the ingestion of a fat-containing meal. Previous studies on intestinal fluid and lymph have shown that the magnitude of this response is dependent upon fatty acid chain length. To examine this relation in the serum of healthy humans, 10 subjects consumed two standardized fat meals. One meal contained predominantly long chain fatty acid triglycerides, the other contained predominantly medium chain fatty acid triglycerides. Serum IALP activity was measured in serial blood samples using a sensitive immunological assay. IALP activity was ABO blood group and secretor status dependent. The post-prandial rise in serum IALP activity was significantly greater following the long chain fatty acid meal than following the medium chain fatty acid meal. Previous observations of the fatty acid chain length dependency of the IALP response to fat ingestion, therefore, also apply in the serum of healthy humans under normal physiological conditions. Standardized fat meals provide the basis of a useful method for the investigation of the role of IALP in fat absorption.

Random nature of triacylglycerols produced by the catalyzed interesterification of short- and long-chain fatty acid triglycerides

1994 ◽  
Vol 42 (2) ◽  
pp. 442-446 ◽  
Author(s):  
Lawrence P. Klemann ◽  
Kathleen Aji ◽  
Michael M. Chrysam ◽  
Ronald P. D'Amelia ◽  
Janet M. Henderson ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Chain Fatty Acid ◽  
Long Chain Fatty Acid ◽  
Random Nature ◽  
Long Chain ◽  
Fatty Acid Triglycerides

Kinetics of thermal degradation of macromolecular petroleum compounds in the presence of fatty acid triglycerides

2014 ◽  
Vol 54 (2) ◽  
pp. 111-119 ◽  
Author(s):  
M. A. Timoshkina ◽  
A. I. Yusevich ◽  
S. G. Mikhalenok ◽  
N. R. Prokopchuk
Keyword(s):  
Fatty Acid ◽  
Thermal Degradation ◽  
Kinetics Of ◽  
Fatty Acid Triglycerides

Fatty Acid Methyl Ester (FAME) Production from Waste Cooking Oil

2015 ◽  
Vol 1113 ◽  
pp. 322-327
Author(s):  
Norkamruzita Saadon ◽  
Nor Ashikin Mohd Yusof ◽  
Noraini Razali ◽  
Marshahida Mat Yashim ◽  
Amira Khairin Roslan
Keyword(s):  
Fatty Acid ◽  
Methyl Ester ◽  
Fatty Acid Methyl Ester ◽  
Oil Palm ◽  
Heterogeneous Catalysts ◽  
Acid Methyl Ester ◽  
Waste Cooking Oil ◽  
Catalyst Loading ◽  
Cooking Oil ◽  
Acid Methyl

Biodiesel is clear liquid with a light to dark yellow color. Biodiesel is one of the alternative fuels that are attractive because of its favorable characteristics such as being non-toxic, biodegradable, renewable, carbon neutral and low emission. Fatty acid methyl ester (FAME) is a type of biodiesel. In this study, it was produced by using transesterification of waste cooking oil (WCO) which was reacted with methanol and heterogeneous catalyst. The two heterogeneous catalysts that were used in this study were sodium (Na) metal hydroxide supported on oil palm frond (OPF) and Na metal supported on oil palm kernel shell (OPKS). The support metal used was sodium hydroxide solution (NaOH). OPF and OPKS were used as they are the major residues obtained from the oil palm plantation that covers approximately 14.72% of Malaysian’s total landmass. The parameters that in this study were the reaction temperatures of the transesterification process from 30°C to 60°C and the catalyst loading from 0.5wt% to 3wt%. The reaction time and ratio methanol to oil were kept constant which were 4 hours and 1:10 respectively. This experiment was conducted in order to investigate the effect of two different heterogeneous catalysts on both temperature and catalyst loading on the yield production of FAME. The results were obtained by using GCMS analysis. From the experiment that was conducted, the results of FAME production by using two different catalysts indicate that the higher the reaction temperature is, the higher the production of FAME which is at 60°C. It also shows that the percentage yield of FAME increases with the increase of catalyst loading until it reaches the best value which is at 1wt%.

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