History, evolution, and environmental impact of biodiesel in Brazil: A review

Oliveira, Fernando De; Coelho, Suani Teixeira

doi:10.1016/j.rser.2016.10.060

Cited by 103 publications

(57 citation statements)

References 24 publications

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“…Another reason is its experience to produce biofuels. The first reports of the Brazilian experiments with the production of biodiesel and ethanol are from the 1920s, when the National Institute of Technology began to study these biofuels [9,10]. However, the high consumption of biofuels in the country occurred in the 1970s, with the implementation of the Brazilian biofuel program PROÁLCOOL (National Alcohol Program).…”

Section: Biofuels -Challenges and Opportunitiesmentioning

confidence: 99%

Valorization of Wastes for Biodiesel Production: The Brazilian Case

Nascimento¹,

Oliveira²,

Oliveira³

et al. 2019

Biofuels - Challenges and Opportunities

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This chapter intends to bring an overview about the Brazilian researches and their contributions to the production of biodiesel from wastes. Currently, the main obstacles to spread the use of biodiesel are its high cost of production and the competition between biodiesel and food industries. So, the use of wastes plays an important role in reducing the biodiesel costs and reusing the materials that have no other applications, as deodorization residues, neutralization soap sticks, and animal fats, among others. Then, we present a review about Brazilian studies involving waste oils and fatty-acid-rich raw materials that helped the advancement in this field of knowledge during the last few years.

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Section: Biofuels -Challenges and Opportunitiesmentioning

confidence: 99%

Valorization of Wastes for Biodiesel Production: The Brazilian Case

Nascimento¹,

Oliveira²,

Oliveira³

et al. 2019

Biofuels - Challenges and Opportunities

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“…Historically, Brazil has adopted soybean and beef tallow as the main feedstocks for the fulfillment of biodiesel demand in the country. As previously mentioned, soybean alone accounts for three-fourths of the domestic production, mostly done in the Mid-West and in the South, regions that house the vast majority of Brazil's biodiesel plants, whose owners are also major soy producers and agribusiness companies, well established in both areas for a long time and, therefore, are better prepared to take advantage of the big soy market that was developed throughout the country [3]. Since the inception of the PNPB program, in 2005, biodiesel production has leap-frogged from 736 thousand to 4.3 billion liters in just 12 years (Figure 3).…”

Section: Production Consumption and Installed Capacity Before Renovmentioning

confidence: 99%

“…Such expansion in the production and use of biodiesel should represent some positive externalities like the creation of new jobs along the entire biodiesel chain, and the reduction of CO 2 emissions in the atmosphere as a replacement for part of the petroleum diesel Brazil still needs to import, which should represent an economy of US$ 1 billion per year for an equivalent amount of nearly 1.2 billion liters of diesel not imported [3].…”

Section: Biofuels -Challenges and Opportunitiesmentioning

confidence: 99%

Biodiesel in Brazil Should Take Off with the Newly Introduced Domestic Biofuels Policy: RenovaBio

Oliveira¹,

Coelho²

2019

Biofuels - Challenges and Opportunities

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Our planet's climate has experienced changes mainly ascribed to the emission of carbon dioxide (CO 2 ), which accumulates in the atmosphere and causes an increase in the Earth's average temperature. In 2015, heads of state and scientists from several countries met in Paris to discuss measures aimed at curbing greenhouse gas emissions in order to limit that temperature rise to 2°C by the end of this century. As CO 2 needs to be banned from our environment for the sake of our own planet, it is reasonable for biofuels to present themselves as clean alternatives for the gradual replacement of fossil fuels. Biodiesel stands as an option. After 2005, some public policies were created in Brazil as an attempt to establish biodiesel as a replacement for mineral diesel, mainly in the transport sector. Although moderately successful, none of them compare in scope and reach to RenovaBio, a domestic biofuels policy that will make the production and use of biodiesel take off, once and for all. Therefore, herein, we present a brief overview on the status of the biodiesel production and use before the enactment of this new biofuels policy and the forecast of what it is expected to happen after its implementation.Keywords: RenovaBio, biodiesel policy, fossil fuel, GHG, carbon dioxide, CO 2 emission three main heat-trapping gases (methane, nitrous oxide, and CFCs-except for CFC-13 and CFC-115), it is seen as the chief culprit of global warming, which has worried the scientific community around the world in recent years.Bearing in mind that it is essential to limit CO 2 emissions in the air, dozens of heads of state and hundreds of scientists from all over the globe gathered at the end of 2015, in Paris, for the 21st Conference of Parts-also known as COP21 or Paris Agreement-with the main goal of engaging nations in an international agreement on climate change in which everyone pledged to collaborate so that the increase in the average temperature of our planet should not exceed the limit of 2°C by the end of this century.At the COP21, Brazil voluntarily committed to: (1) cut down on GHG emission up to 37% by 2025 and 43% by 2030-considering 2005 as the base year for both scenarios [2]-which would represent approximately 1.2 million tons of carbon dioxide equivalent (CO 2 eq) by the year 2020 [3]; (2) increase the use of biofuels from sustainable bioenergy up to 18% of the total domestic energy mix by the year 2030 [4]; and (3) increase the share of renewables to an estimated 45% by the same year [5].So, considering the scenario wherein CO 2 needs to be banned from our environment for the sake of our own planet, it is reasonable for biofuels to present themselves as clean and renewable alternatives [6] for the gradual replacement of fossil fuels such as gasoline and mineral diesel, for example. Therefore, because biodiesel is biodegradable, less toxic, and almost 100% renewable [7,8], it stands as an option.After 2005, some public policies were created in Brazil as an attempt to definitely establish biodiesel as replacement for fos...

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“…Currently, one of the main challenges facing humanity is to reduce the use of petroleum fuels and increase the production of fuels from low carbon sources [1]. A viable alternative is biofuels, which have the advantages of being easily extractable from biomass, biodegradable, non-toxic and environmentally friendly [2,3].…”

Section: Introductionmentioning

confidence: 99%

Use of Co/Fe-Mixed Oxides as Heterogeneous Catalysts in Obtaining Biodiesel

et al. 2019

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Catalyst-type mixed metal oxides with different compositions and Co/Fe ratios were obtained from layered double hydroxides to be used as heterogeneous catalysts in the production of biodiesel. The effect of the Co/Fe ratio on the precursors of the catalysts was analyzed, considering their thermal, textural and structural properties. The physicochemical properties of the catalysts were determined by thermogravimetric analysis (differential scanning calorimetry and thermogravimetric), X-ray diffraction, Fourier-transform infrared spectroscopy, Scanning Electron Microscopy-Energy Dispersive X-ray spectroscopy and N2-physisorption. The conversion to biodiesel using the different catalysts obtained was determined by diffuse reflectance infrared Fourier-transform spectroscopy and 1H-Nuclear magnetic resonance spectroscopy, allowing us to correlate the effect of the catalyst composition with the catalytic capacity. The conditions for obtaining biodiesel were optimized by selecting the catalyst and varying the percentage of catalyst, the methanol/oil ratio and the reaction time. The catalysts reached yields of conversion to biodiesel of up to 96% in 20 min of reaction using only 2% catalyst. The catalyst that showed the best catalytic activity contains a mixture of predominant crystalline and amorphous phases of CoFe2O4 and NaxCoO2. The results suggest that cobalt is a determinant in the activity of the catalyst when forming active sites in the crystalline network of mixed oxides for the transesterification of triglycerides, with high conversion capacity and selectivity to biodiesel.

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History, evolution, and environmental impact of biodiesel in Brazil: A review

Cited by 103 publications

References 24 publications

Valorization of Wastes for Biodiesel Production: The Brazilian Case

Valorization of Wastes for Biodiesel Production: The Brazilian Case

Biodiesel in Brazil Should Take Off with the Newly Introduced Domestic Biofuels Policy: RenovaBio

Use of Co/Fe-Mixed Oxides as Heterogeneous Catalysts in Obtaining Biodiesel

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