The paper discusses selected aspects of vegetable oils production competitiveness in a global context. Three major vegetable oils (palm, soybean, rapeseed) were analyzed. Their raw material was discussed in the terms of crop yield, oil and meal content as well as meal and oil yields. The levels...

Проведен анализ факторов, влияющих на качество растительного масла на этапах товародвижения от сырья до потребителя. Установлена зависимость между...

In this study, n-butanol (nB) was used as the common solvent and crude canola (Cn), soybean (Sb), sunflower (Sf), corn (Cr), olive (Ol), and hazelnut oil (Hn) as the vegetable oil components were used for making microemulsification of diesel fuel (D)-vegetable oil blends. The blend ratios of 70%...

Heterogeneous transesterification of vegetable oils offers an environmentally more attractive option for biodiesel production compared to the conventional homogeneous processes. In the work, a novel heterogeneous base catalyst was prepared by anchoring 1,3-dicyclohexyl-2-octylguanidine (DCOD)...

Vegetable oils and animal fats represent promising alternatives to diesel engine fuel because they can be obtained from different feedstocks and renewable sources; also their properties are close to diesel fuel. The direct use of these biofuels as a diesel engine fuel can cause several problems...

This paper examines whether and how biotech labelling has had an impact on Chinese consumers’ vegetable oil purchasing decisions. The authors used sales data from Nanjing and household survey data from Jiangsu province. They found that the market share of biotech oils immediately decreased as...

Bio-energy demand is known to be influenced by geographical origin and social equity. This paper aims to highlight the influence of the proximity between biomass production and energy consumption on the demand for alternative bio-fuels. In the context of Burkina Faso, we explore potential demand...

Alternative fuels are expected to play a major role in EU in the coming years due European Directives on the promotion of renewable energies and reduction of greenhouse gas emissions in transports. However, while in road transports a variety of possible renewable fuels (mainly biofuels, but also...

The relation between spray quality and combustion performance in a micro gas turbine has been studied by burning a viscous biofuel at different fuel injection conditions. Emissions from the combustion of a viscous mixture of straight vegetable oils have been compared to reference measurements...

In combination with the emergence of genetically modified (GM) food, there has been an urgent call for GM labeling to provide relevant information disclosure. Using data collected in Beijing, China, this study attempts to address the issue of whether different types of information may have...

The biodiesel industry in the United States has grown significantly in recent years. Production increased from 25 million gallons in 2004 to an estimated 250 million gallons in 2006, and many new plants are being built. Most biodiesel in the United States is produced from soybean oil, but canola...

High tariff and nontariff protection of the Indian oilseed sector imposes costs on consumers, supports an inefficient processing industry, and has led to negligible gains in oilseed output. Model-based simulations indicate that higher levels of protection would increase the burden on consumers,...

The main objective of rapeseed oil hydrogenation tests was the production of liquid bio-chemicals to be used as renewable raw material for the production of several chemicals and in chemical synthesis to substitute petroleum derived stuff. As, hydrogenation of vegetable oils is already applied...

Micro gas turbine units are reliable and versatile units for on-site combined heat and power production (CHP). Compared to internal combustion engines, CHP units based on micro gas turbines offer several advantages, among which the compactness, the high power-to-weight ratio, the lower pollutant...

In this study, favorable conditions to achieve good combustion of cottonseed oil and its blends with diesel fuel in a direct injection diesel engine have been highlighted. This has been performed by analyzing fuel droplet size distribution and determining engine specific fuel consumption and...

Biodiesel is biodegradable and nontoxic alternative fuel for diesel engine which has become more attractive to replace diesel fuel. In this study, vegetable oil was identified as potential sources for biodiesel production. The production of biodiesel from different non-edible oilseed crops has...

Energy is an indispensable factor of today's developed and developing societies. However, supplying most of the energy need through nonrenewable fossil fuels has come to the threatening position for both the energy demand and the sustainable development in the future. For this reason, most of...

This review aims to provide up-to-date knowledge on existing feedstocks for biofuels production (mainly biodiesel) from lipid-based biomasses. The 1st generation of lipid-based feedstocks was edible plant oils, whilst other alternative feedstocks were discovered and reported as the 2nd...

This study estimated the greenhouse gas emissions (GHGs) and net energy ratio (NER) for producing hydrogenation-derived renewable diesel (HDRD) from canola and camelina in Western Canada. Using 1 MJ of energy in the HDRD produced as the functional unit, a variety of scenarios were evaluated to...

A large share of the vegetable oil market is today shifting from food to the energy sector. This trend led to discussions about the chance of confliction between these two chains and its possible social and environmental consequences. Moreover the increasing interest in pure vegetable oils for...

In this study, hybrid fuels consisting of rapeseed oil/diesel blend, 1% aqueous ethanol and a surfactant (oleic acid/1-butanol mixture) were prepared and tested as a fuel in a direct injection (DI) diesel engine. The main fuel properties such as the density, viscosity and lower heating value...

In recent years, biodiesel has attracted significant attention from researchers, governments, and industries as a renewable, biodegradable, and non-toxic fuel. However, several feedstocks have been proven impractical or infeasible because of their extremely high cost due to their usage primarily...

Growing concerns related to environmental pollution, energy security, and future oil supplies have encouraged the development of large-scale non-petroleum-based alternative fuels, such as bioethanol and biodiesel. Bioethanol made from inexpensive and abundant sources of lignocellulosic biomass,...

In order to verify and solve the problem of NOx and PM emissions, it is necessary to directly observe the internal combustion chamber of a diesel engine. Many studies have been performed in recent years to verify the macroscopic and microscopic behavior of the injected fuel spray because...

In a recent paper published by our group (M.D. Scherer et al. J. Fluoresc. 21 (2011) 1027–1031), we showed that fluorescence spectroscopy has a potential to be used to determine the biodiesel content in the diesel/biodiesel blends. However, this method presents some challenges that must be...

Higher heating value (HHV) is an important property of a fuel, especially for vegetable oils, fats and their derivatives which are intended to replace petroleum fuels. There are lots of methods to evaluate the HHV of a fuel. In this paper, the HHV of vegetable oils, fats and their derivatives...

Environmental analyses of energy systems usually lack a comprehensive perspective that takes into account their life cycle and a set of relevant impact categories. The present study tries to fulfil this need in the field of biofuel production from free fatty acid-rich wastes, therefore providing...

Biodegradable mulches made from kraft paper coated with polymerized (cured) vegetable oils were compared to black polyethylene mulches for promoting the growth of watermelon in northern Florida. Data from three spring growing seasons have been collected. Yields of watermelon planted on paper-soy...

With the continuing controversy over genetically modified (GM) foods, some groups advocate mandatory labeling of these products, while other groups oppose labeling. An important issue is how GM labels affect consumers' willingness to pay for these food products in the market. Using a...

High heating value (HHV) is an important property which characterises the energy content of a fuel such as solid, liquid and gaseous fuels. The previous assertion is particularly important for vegetable oils and biodiesels fuels which are expected to replace fossil oils. Estimation of the HHV of...

An integrated, clean, facile and ecologically friendly approach of biodiesel production from Eruca Sativa Gars (ESG) vegetable oil focused on lab scaling up was reported in this study. Transesterification of ESG oil was heterogeneously catalyzed by Cs2.5H0.5PW12O40 heteropolyacid salt. The...

Fuel crisis because of dramatic increase in vehicular population and environmental concerns have renewed interest of scientific community to look for alternative fuels of bio-origin such as vegetable oils. Vegetable oils can be produced from forests, vegetable oil crops, and oil bearing biomass...

The increasing industrialization and motorization of the world has led to a steep rise for the demand of petroleum products. Petroleum based fuels are obtained from limited reserves. These finite reserves are highly concentrated in certain regions of the world. Therefore, those countries not...

Genetically modified (GM) foods have caused many controversies. One important controversy relates to tolerance?the impurity rate that is tolerated before a commodity must be labeled as genetically modified. Currently, the United States does not have a specific tolerance or threshold level for GM...

Public debate continues over whether the United States should regulate genetically modified (GM) foods by imposing a mandatory labeling policy. This paper develops a model that shows that a voluntary GM-labeling policy results in higher welfare than a regulated mandatory GM-labeling policy, if...

While fossil energy prices remain relatively low and agricultural prices are maintained at a relatively high level as a result of production costs, the use of purpose grown crops as a source of fuels requires subsidies, tax support or other financial incentives to be viable. In the short term,...