نتایج جستجو برای: continuous biodiesel production

تعداد نتایج: 857127  

2013
P. Kaewkannetra

The effect of the type of oil, types of alcohol and the alcohol concentration on the settling behaviour of glycerol during biodiesel production is discussed in the current paper. Biodiesel production was performed by transesterification using 0.58 % sodium hydroxide (NaOH) as a basic catalyst at 60°C and 20 min of reaction time. The yield of biodiesel produced in each experiment was separated f...

2017
Mahin Basha Syed

High-performance liquid chromatography (HPLC) was used for the determination of compounds occurring during the production of biodiesel from karanja and jatropha oil. Methanol was used for fast monitoring of conversion of karanja and jatropha oil triacylglycerols to fatty acid methyl esters and for quantitation of residual triacylglycerols (TGs), in the final biodiesel product. The individual sa...

2017
Brandy J. Johnson Brian J. Melde Martin H. Moore Anthony P. Malanoski Jenna R. Taft

Biodiesel is produced by transesterification of animal fat, vegetable oil, or waste cooking oil with alcohol. After production costs, the economic viability of biodiesel is dependent on what steps are necessary to remove impurities following synthesis and the effectiveness of quality control analysis. Solid-phase extraction offers a potentially advantageous approach in biodiesel processing appl...

2011
A. Hayyan M. Z. Alam S. Tahiruddin

Sludge palm oil (SPO) is an attractive feedstock and a significant raw material for biodiesel production. The use of SPO can lower the cost of biodiesel production significantly. In this study biodiesel fuel was produced from SPO by esterification process using P-toluenesulfonic acid (PTSA) as acid catalyst in different dosages in presence of methanol to convert free fatty acid (FFA) to fatty a...

2012
K. Sudhakar M. Premalatha

Biodiesel is a renewable fuel currently derived from vegetable oils and animal fats. One of the limiting factors for the growth of the biodiesel market is the availability and price of feedstock. Feedstock for biodiesel has to compete with the food crops for land and water. Hence, alternative feedstock’s that are not also food crops need to be found. One such renewable energy sources are microa...

Ahmad Panah Azari Dariush Norouzian Rasul Sharifi Saleh Soleimani Seyyed Mohammad Atyabi

Vegetable oils and fats in comparison with diesel fuel have high viscosity, by transesterification method the viscosity of oil can be decreased. Transesterification of triglyceride with alcohol is one of the methods for production of biodiesel. In this study sunflower oil, methanol and ethanol, with molar ratio of (1:3, 1:4, 1:6, 1:8) and temperature (40, 50, 60 º C) were dependent parameters e...

The promoted K-La nanocatalysts supported on ZSM-5 zeolite were prepared via wetness impregnation method and tested for biodiesel production from soybean oil. The effects of different weight percentage of La, loading of K as a promoter and calcination conditions on structure and activity of catalyst were investigated. Results showed that the supported catalyst containing 7wt.% of La was pro...

Journal: :Molecules 2012
Juana M Bernal Pedro Lozano Eduardo García-Verdugo M Isabel Burguete Gregorio Sánchez-Gómez Gregorio López-López Mathieu Pucheault Michel Vaultier Santiago V Luis

The synthesis of biodiesel fuel from lipids (vegetable oils and animal fats) has gained in importance as a possible source of renewable non-fossil energy in an attempt to reduce our dependence on petroleum-based fuels. The catalytic processes commonly used for the production of biodiesel fuel present a series of limitations and drawbacks, among them the high energy consumption required for comp...

2009
Xiaohu Fan Rachel Burton

Biodiesel, as renewable and biological origin alternative diesel fuel, has been receiving a lot of concern throughout the world due to the energy needs and environmental awareness. However, at present, it is not economically feasible to use food-grade vegetable oils to produce biodiesel because of the surge in feedstocks price. Much attention has been devoted to the application of lower-cost fe...

Journal: :Journal of oleo science 2015
Razieh Shafiee Alavijeh Fatemeh Tabandeh Omid Tavakoli Aliasghar Karkhane Parvin Shariati

Microalgae have become an important source of biomass for biodiesel production. In enzymatic transesterification reaction, the enzyme activity is decreased in presence of alcohols. The use of different acyl acceptors such as methyl/ethyl acetate is suggested as an alternative and effective way to overcome this problem. In this study, ethyl acetate was used for the first time in the enzymatic pr...

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