Journal ArticleDOI
Alumina-supported potassium iodide as a heterogeneous catalyst for biodiesel production from soybean oil
Wenlei Xie,Haitao Li +1 more
TLDR
In this paper, the transesterification of soybean oil with methanol has been studied in a heterogeneous system, using alumina loaded with potassium iodide as a solid base catalyst.Abstract:
Biodiesel fuel, a promising alternative diesel fuel produced by a catalytic transesterification of vegetable oils, has become more attractive recently because of its environmental concerns and the fact that it is made from renewable resources. In this work, the transesterification of soybean oil with methanol has been studied in a heterogeneous system, using alumina loaded with potassium iodide as a solid base catalyst. After loading KI of 35 wt.% on alumina followed by calcination at 773 K for 3 h, the catalyst gave the highest basicity and the best catalytic activity for this reaction. The catalysts were characterized by means of XRD, IR, SEM and the Hammett indicator method. Moreover, the dependence of the conversion of soybean oil on the reaction variables such as the catalyst loading, the molar ratio of methanol to oil and the reaction time was studied. The conversion of 96% was achieved under the optimum reaction conditions. Besides, a correlation of the catalyst activity for the transesterification reaction with its basicity was proposed.read more
Citations
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Journal ArticleDOI
Preparation and Characterization of CaO Nanoparticles/NaX Zeolite Catalysts for the Transesterification of Sunflower Oil
Sandra Luz Martínez,Rubi Romero,José Carlos López,Amaya Romero,Víctor Sánchez Mendieta,Reyna Natividad +5 more
TL;DR: In this article, the results of the transesterification of sunflower oil with methanol to produce biodiesel using CaO nanoparticles supported on NaX zeolite as catalyst were reported.
Journal ArticleDOI
Biodiesel production through the use of different sources and characterization of oils and their esters as the substitute of diesel: A review
S. P. Singh,Dipti Singh +1 more
TL;DR: In this paper, the authors reviewed the source of production and characterization of vegetable oils and their methyl ester as the substitute of the petroleum fuel and future possibilities of Biodiesel production.
Journal ArticleDOI
Activity of solid catalysts for biodiesel production: A review
TL;DR: In this article, the catalytic activity of several solid base and acid catalysts, particularly metal oxides and supported metal oxide, was reviewed for transesterification and esterification reactions simultaneously and converted oils with high amount of Free Fatty Acids.
Journal ArticleDOI
Opportunities and challenges for biodiesel fuel
TL;DR: In this article, a review of the perspectives for the biodiesel industry to thrive as an alternative fuel, while discussing opportunities and challenges of biodiesel, is presented, focusing on possible environmental and social impacts associated with biodiesel production, such as food security, land change and water source.
Journal ArticleDOI
A review on novel processes of biodiesel production from waste cooking oil
TL;DR: In this paper, the effect of novel processes such as membrane reactor, reactive distillation column, reactive absorption, ultrasonic and microwave irradiation significantly influenced the final conversion, yield and in particular, the quality of product.
References
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Journal ArticleDOI
Biodiesel production : a review
Fangrui Ma,Milford A. Hanna +1 more
TL;DR: In this article, the transesterification reaction is aected by molar ratio of glycerides to alcohol, catalysts, reaction temperature, reaction time and free fatty acids and water content of oils or fats.
Journal ArticleDOI
Biodiesel production from high FFA rubber seed oil
TL;DR: A two-step transesterification process is developed to convert the high free fatty acids (FFA) oils to its mono-esters in this article, where the important properties of biodiesel such as specific gravity, flash point, cloud point and pour point are found out and compared with that of diesel.
Journal ArticleDOI
Optimisation of biodiesel production by sunflower oil transesterification
TL;DR: In this work, sunflower methyl esters were characterised to test their properties as fuels in diesel engines, such as viscosity, flash point, cold filter plugging point and acid value, and showed that biodiesel obtained under the optimum conditions is an excellent substitute for fossil fuels.
Journal ArticleDOI
Transesterification of vegetable oil to biodiesel using heterogeneous base catalyst
Hak-Joo Kim,Bo Seung Kang,Min Ju Kim,Young Moo Park,Deog Keun Kim,Jin Suk Lee,Kwan Young Lee +6 more
TL;DR: In this paper, an environmentally benign process for the production of biodiesel from VOs using heterogeneous catalyst was developed, and the basic strength of Na/NaOH/γ-Al2O3 catalyst was estimated and the correlation with the activity towards transesterification was proposed.