Top Research Papers on Biofuels

Technology is setting strategic directions for change in the economy and industry and is helping to shape the future of jobs and the economy in the developing world.

Biofuels for transportation is an essential factor of significant measures to increase fuel security, combat climate change, and promote rural development. The rising amount of greenhouse pollution brought on by the use of fossil fuels is now widely recognized. The energy crisis results from the growing disparity between the energy needs of the industrialized world and the finite amount of energy from fossil fuels. Among energy consumers, the transportation sector is frequently cited as one of the primary pollutant sources. For instance, the second-most polluting industry in the USA in 2014 wa...

Biofuels have received a lot of interest as a result of rising energy demand which caused rapid depletion of fossil fuels and growing worries about greenhouse gas emissions. Biofuels, unlike other renewable energy sources, can supply liquid fuels, which are necessary for transportation. In this review study, the main focus is the scenario of palm oil biofuel development in Malaysia, which involves the future prospect and challenges faced by the country to fully-utilize the potential of palm oil as a renewable energy. Even with the primary driving policy, the National Biofuel Policy 2006, it is...

: Even in the presence of the formidable growth of renewable energy sources, advanced combustion processes have and will continue to have an irreplaceable role as a driving force for energy market. This is indeed motivated by the same huge amount of energy that can be conveniently stored in the form of energy carriers, made available from the renewable sources. The coupling of the appropriate combustion conversion technology with locally available biofuels certainly is among the most e ff ective solutions, now on the table, to face the decarbonization challenge. In this framework, moderate or i...

Biofuel is a renewable fuel. Due to global warming, oil crisis and other factors, biofuel is receiving increasing attention. Biofuel is the fuel extracted from biomass, which has the advantages of diversity, materiality, recyclability and environmental protection. It is mainly used for road transportation. According to the evolution of biofuel, its production process has gone through four iterations, so far the research of biofuel is still in constant exploration. This review summarizes the common biofuel, among which bioethanol and biodiesel are well known and widely used. We should have a co...

The global demand for energy is expected to rise up to 59% by the year 2035. This is due to the increasing technology developments and contemporary industrialization. Continues trends of these simultaneously will affects the crude fossil oil reserves progressively. Therefore, biofuels that are predominantly produced from the biomass based feedstocks such as plant, algae material and animal waste. Liquid or gaseous biofuels are the most simple to ship, deliver, and burn since they are easier to transport, deliver, and burn cleanly. The key contributor to the elevated green house gaseous concent...

This article covers the legal requirements regarding the use of renewable fuel. It covers the environmental impacts of using ethanol, cellulosic ethanol, and biodiese as fuel. It discusses the subsidies provided to encourage the use of biofuel. It concludes that the existing programs to encourage the use of biofuel result in adverse environmental impacts and are costly programs that produce marginal public benefits.

The steady increase in human population and a rising standard of living heighten global demand for energy. Fossil fuels account for more than three-quarters of energy production, releasing enormous amounts of carbon dioxide (CO2) that drive climate change effects as well as contributing to severe air pollution in many countries. Hence, drastic reduction of CO2 emissions, especially from fossil fuels, is essential to tackle anthropogenic climate change. To reduce CO2 emissions and to cope with the ever-growing demand for energy, it is essential to develop renewable energy sources, of which biof...

Focus of this paper is on the microalgal biofuels and on the available process technologies, and basic information on life cycle assessment of microalgae cultivation and CO2 sequestration potential is given.

Overall, algal biofuels still face many challenges in replacing traditional fossil fuels, and future work should focus on maximizing the yield and quality of algae-derivedBiofuels while increasing their economic viability.

The microbial production of PHAs, biofuel production fromPHAs, parameters affecting the production of fuel from PHas, and PHAs biorefineries are reviewed and future work on the productionof biofuels from PHAs is also discussed.

The energy consumption that results from economic growth and the pollution it releases into the environment has been the subject of widespread concern in academics and society in recent years, and they have grown in importance as the times progress. There is a growing need for renewable and alternative energy sources due to the possible depletion of non-renewable fossil energy sources like coal and oil as well as the acceleration of global climate change. One of the hottest areas of study right now is the hunt for clean, renewable, and alternative energy sources. A thorough analysis of the bio...

examine NO Between and the is with one of Alfa Laval’s a impurity separator. Moving forward, Alfa test the biofuel in a four-stroke and to bunker on the DFDS Pearl Seaways for use producing hot while in Danish ports.

данных двигателей перед своими «коллегами», работающими на нефтяных топливах. Ключевые слова: биотопливо после двигателя, автомобиль, этанол, рапсовое масло. The necessity of using eco-friendly biofuels for motor vehicles is justified. The possibilities and ways of using biofuels based on alcohols (methanol, ethanol), rapeseed oil and rapeseed oil methyl ether are analyzed. The physical processes that prove the effectiveness and reliable reduction of soot content in the exhaust gases (EG) of cars when using these biofuels are considered. For a deep understanding of the main mechanisms of forma...

This Special Issue is focused on technological innovations, which include but are not limited to the utilization of different feedstock; different biomass pretreatments; fermentation strategies, such as simultaneous saccharification and fermentation (SSF) or separate hydrolysis and fermentations (SHF); different applied microorganisms used as monoculture or co-culture; and different setups for biofuel fermentation processes.

Description To get the carbon out of air travel, industry and government are trying, again, to turn farm and food waste into fuel To get the carbon out of air travel, industry and government are trying, again, to turn farm and food waste into fuel

Biofuels are sustainable alternatives to fossil fuels because of their renewable and low-cost raw materials, environmentally friendly conversion technologies and low emissions upon combustion. In addition, biofuels can also be upgraded to enhance their fuel properties for wide applicability in power infrastructures. Biofuels can be produced from a wide variety of biomasses through thermochemical and biological conversion processes. This article provides insights into the fundamental and applied concepts of thermochemical conversion methods such as torrefaction, pyrolysis, liquefaction, gasific...

This review aims to evaluate the development of lignin-derived fuels from an economic and environmental point of view while presenting a broad perspective.

Abstract The reliance on petroleum derivatives and the increasing trend of fuel consumption in the transport sector have brought attention to biofuels as a measure to reduce greenhouse gas (GHG) emissions, enhance energy security and boost economic development. The incentive for utilizing biofuels is their potential to reduce carbon dioxide (CO2) emissions compared to fossil fuels. Biofuels are considered to be carbon-neutral, regarding the direct CO2 emissions associated with their combustion, on the grounds that the carbon dioxide absorbed by the plants through photosynthesis is equivalent t...

Bioethanol, a renewable and sustainable biofuel, has emerged as a promising solution to address environmental and energy challenges. This comprehensive review explores the historical development, various biomass feedstocks, production processes, and the environmental and economic benefits of bioethanol. It also delves into the challenges associated with bioethanol production and the distinct categories of bioethanol, including first-generation, second-generation, and advanced types. Additionally, the review assesses the role of bioethanol as a transportation fuel and examines the policy and re...

Bio-based materials have been used traditionally for millennia. Their use was overtaken in recent times by the discovery and utilization of fossil-based resources for materials and energy. However, concerns about the non-renewability of fossil resources and greenhouse gas and other emissions associated with their use have brought forth a renewed interest in using bio-based materials in recent years. The environmental advantages of bio-based materials cannot be taken for granted without a rigorous scientific assessment. Many tools based on energy, economics, and environmental impacts have been ...

“Biofuels” are transportation fuels like ethanol and biodiesel that are made from biomass materials. These fuels are usually blended with petroleum fuels namely with gasoline and diesel fuel, but they can also be used on their own. Ethanol and biodiesel are also cleaner burning fuels, producing fewer air pollutants. It has drawn significant attention due to increasing environmental concern and diminishing petroleum reserves. Bio-diesel fuel can be made from renewable vegetable oils, animal fats or recycled cooking oils by trans esterification process. Biodiesel is the fastest growing alternati...

Microbial cell factories reinvigorate current industries by producing complex fine chemicals at low costs. Reduced nicotinamide adenine dinucleotide phosphate (NADPH) is the main reducing power to drive the biosynthetic pathways in microorganisms. However, the insufficient intrinsic NADPH limits the productivity of microorganisms. Here, we report that supplying microorganisms with long-lived electrons from persistent phosphor mesoporous Al2O3 (meso-Al2O3) can elevate the NADPH level to facilitate efficient fine chemicals production. The defects in meso-Al2O3 were demonstrated to be highly effi...

Commercialization has been primarily responsible for the recent sharp rise seen in energy consumption, which has coincided with an increasing global population.

Currently in the European Union (EU) there is an intense debate on the limits to acquire the European Green Deal, to make Europe the first climate neutral continent in the world [...]

Jojoba oil biofuel is a potential alternative to diesel fuel with attractive properties, but its flow behavior under the operating conditions of a diesel engine still needs to be clarified. In this study, the rheological properties of the jojoba biofuel are presented in assessment with diesel fuel to experimentally evaluate both their flow behaviors at different operating temperatures. A Fann-type coaxial cylinder viscometer was employed. The shear stress of the tested biofuel rises considerably with the shear rate in a marginally nonlinear manner on a logarithmic scale. Rheograms indicate tha...

Perspective directions for the development of motor biofuels market in Ukraine are considered. It is shown that Ukraine has a significant potential for the production of liquid biofuels for the transport sector. Today, it is mainly biodiesel and bioethanol of the first generation, since the technologies for obtaining advanced biofuels from lignocellulosic feedstocks are not yet sufficiently developed in the country. However, as these technologies improve, one of directions for the development of motor biofuels market will be the expansion of production opportunities for second generation (adva...

Biomass, noted for its adaptability, has various applications in biofuel generation, industrial use, and environmental cleaning. This study looks into the multiple roles of biomass as a renewable energy source, with a particular emphasis on its vital contribution to biofuel production. Through a thorough evaluation of different conversion routes—thermal, biological, and physical—the study emphasizes thermochemical processes' efficiency, cost-effectiveness, and adaptability. Notably, technologies like gasification and quick pyrolysis are thoroughly investigated, followed by in-depth discussions...

Biofuel cells have been in the spotlight for the past century because of their potential and promise as a unique platform for sustainable energy harvesting from the human body and the environment. Because biofuel cells are typically developed in a small platform serving as a primary battery with limited fuel or as a rechargeable battery with repeated refueling, they have been interchangeably named biobatteries. Despite continuous advancements and creative proof-of-concept, however, the technique has been mired in its infancy for the past 100 years, which has provoked increasing doubts about it...

Based on the conducted analyses, it was found that biobutanol mixtures have a more suitable behavior of vapor pressure without the occurrence of azeotrope, and has higher energy density, but slightly reduce the octane number and a have higher viscosity.

An accelerating global energy demand, paired with the harmful environmental effects of fossil fuels, has triggered the search for alternative, renewable energy sources. Biofuels are arguably a potential renewable energy source in the transportation industry as they can be used within current infrastructures and require less technological advances than other renewable alternatives, such as electric vehicles and nuclear power. The literature suggests biofuels can negatively impact food security and production; however, this is dependent on the type of feedstock used in biofuel production. Advanc...

Today, reducing GHG emissions is an important goal worldwide. Initially, first-generation biofuels were considered as a solution; however, they created a conflict between food and fuel. Advanced biofuels, which use non-edible materials, have emerged and are becoming more widespread, thus resolving this conflict. The paper aimed to investigate the three pillars of advanced biofuels’ sustainability (economic, environmental, and social). In the frame of a systematic literature review, 41 out of the initially screened 3407 articles were analyzed in depth. The economic aspect of sustainability was ...

Brazilian bioethanol is one of the most prominent biofuels produced on a large scale, representing 30% of the global fuel ethanol production share. Around 8.6 billion gallons were produced in 2019, second only to the US fuel ethanol production in the same period (15.8 billion gallons). Obtained from sugarcane in a highly energy‐efficient process, the biofuel, which can be used in Brazil as 100% ethanol (hydrated, minimum mass content of 92.5%) or in a volume proportion of 27% (anhydrous ethanol) in common gasoline, has contributed to the reduction of oil dependency and CO2 emissions, as well a...

Recent trends in the application of multiple molecular strategies to construct high performance microalgal strains by metabolic engineering and synergistic strategies of process optimization and stress operation to enhance microalGal lipid accumulation for biofuel production are critically discussed.

This Opinion highlights several successful cases of biofuel technologies recently described by the IEA Bioenergy Intertask Report on Lessons Learned. The report discussed the potential of biofuels to contribute to a significant market supply, thus replacing fossil fuels and mitigating global warming, and it underscores the challenges in expanding biofuel production and replicating successful models between countries and regions. Based on the lessons learned from conventional, established technologies, the authors analyzed policies, feedstocks, products, technologies, economics, environmental c...

Under the roof of solid industrialization and accelerated intensification of multiple ranges of mobilization, a huge rise in precious fuel consumption and pollution was observed. Based on the recent hardships of fossil fuels, experts are undoubtedly eager in carrying out their research in renewable environment-friendly fuels. There have been many reviews of works considering the parameters and standards of biodiesel, which is only from various vegetable and seed oils. But very little review work was carried out on only plant-based biofuel. Plant-based fuel has a lower viscosity and higher vola...

Biofuels have drawn the attention of policymakers as a medium to address concerns of energy security, climate change and socio-economic development. The paper examines the biofuel policies of the major biofuel producing nations and analyzes the key instruments being adopted by them during the last decade such as blending mandates, financial incentives, subsidies, import tariffs, greenhouse gas (GHG) emission and carbon trading. The countries are categorized by continent and covers Asia (India, China, Malaysia, Indonesia and Thailand), Europe (European Union, Germany and France), South America ...

Anthropogenic Greenhouse Gas Emissions and Energy Security are one of the major problems faced by modern era. There are many factors which are the source of their production and accelerate their intensity of damage, among which the major one is high reliance on fossil fuels for our day-to-day activities. Renewable Energy although has started to share a considerable portion of energy production and utilization; but still there is need to focus on new and improved sources of Renewable Energy for future supplementation in terms of energy needs. In this context, Microalgae have emerged as a promis...

Globally, biofuels are produced from the agricultural sources or biomass which contains higher feed stock material and agricultural component. These sources are used as a good source for the good yield of biofuels that results to higher energy production. These biomasses comprised of various organic chemicals which are processed for production like sugars, starch and hydrocarbons components. Industrial, agricultural and domestic wastes are treated and converted to biosolids or sewage sludge, which contains a diversity of organic chemicals in different ranges. Organic chemicals like hydrocarbon...

An emulsified biofuel composition comprising: (A) a continuous phase comprising about 50-95 wt% of at least one liquid oil of vegetable or animal origin or mixtures thereof; (B) a water- containing dispersed phase comprising about 1-50 wt% water; (C) about 1-25 wt% of hydroxyl-containing organic compound selected from the group consisting of mono-, di-, tri- and polyhydric alcohols, provided that when a monohydric alcohol is used there is also present at least one of tert-butyl alcohol, at least one C2-C4 alkylene glycol or a mixture of both; (D) about 0.05-10 wt% of at least one emulsifier; w...

(A) and plant or animal origin, or continuous phase comprising at least one of about 50 to 95 wt% of liquid oil mixtures thereof, and water-containing dispersed phase comprising (B) about 1 to 50% by weight of water, ( C) mono-, di-, tri-, and a hydroxyl-containing organic compound selected from the group consisting of polyhydric alcohols, provided that when the monohydric alcohol is used tert- butyl alcohol, at least one of C2~C4 also present at least one alkylene glycol or a mixture of both, comprises a about 1 to 25 wt% hydroxyl-containing organic compound, and (D) about 0.05 to 10 wt% of a...

Wearable biofuel cells (BFCs) technologies have the potential to address the challenge of on‐body energy supply of wearable electronics. However, previous wearable BFCs primarily focus on “worn‐on‐skin” sweat ones, which can hardly directly generate steady and nonintermittent electricity under certain but almost ineluctable wearable circumstances (e.g., intermittent sweating, perspiration biofuel concentration fluctuation, and dynamic contact between wearable BFCs and epidermal sweat). Here, in an alternative “worn‐close to‐skin” manner, the first example of a flexible BFC‐in‐a‐tube (named iez...

Decarbonisation of the transport sector is essential to mitigate anthropogenic climate change. Microbial metabolisms are already integral to the production of renewable, sustainable fuels and, building on that foundation, are being re-engineered to generate the advanced biofuels that will maintain mobility of people and goods during the energy transition. This review surveys the range of natural and engineered microbial systems for advanced biofuels production and summarises some of the techno-economic challenges associated with their implementation at industrial scales.

Among various renewable energy sources, biomass standout as an environmentally benign, sustainable and an immediate substitute to fossil based fuels.

An experiment was conducted to produce ethanol/biofuel from cassava flour which reduce both consumption of crude oil and environmental pollution. Cassava flour hydrolysate with standard glucose and sucrose solutions were used as controls. The effects of yeast concentrations (5, 15 and 20%) and fermentation time (24, 48, 72, 96 and 120 h) on alcohol yield from CFH were also studied. The maximum carbon-dioxide evolved during fermentation was 8.57 g recorded by cassava flour hydrolysate while the conversion efficiency of sugars to alcohol was 247.6, 97.14 and 92.51% for cassava flour hydrolysate,...

Jordan is one of the few countries in the Middle East that has very limited resources of fossil fuel such as natural gas and crude oil. The country is fast growing with a population growth rate of 1.8%. The Gross Domestic Product (GDP) of Jordan reached USD 40.4 billion in 2015 with a population exceeding 9.96 million. Food and energy demands are increasing every year. Energy security and maintaining energy flow to meet the yearly demands are the biggest economic challenges facing Jordan. Renewable energies are the most vital solutions that provide energy security and accelerate economic growt...

A comprehensive description of carinata's biology is presented, beginning with its origin and current state of distribution, availability of genetic and genomic resources, and a discussion of its morphology, phenology, and reproduction to facilitate global adoption, sustainable production, and commercialization of the crop.

: The global biofuel industry is characterized by a wide range of legislative and regulatory measures for the development of bioenergy. In order to stimulate the production of biofuels, a set of measures has been developed, including legislative regulation, indicative planning of production volumes, preferential taxation and budget support. Ukraine is among the top ten largest consuming countries of energy resources. Weak and inconsistent state policy in the sphere of biofuels as well as inconsistent legislative provisions regulating activities in the field of production, circulation and use o...

Biofuel comprising from agricultural products and a fossil fuel, characterized in that it is present in cylindrical pellets comprising up to 30% by weight of coal and from 60 to 70% by weight of a mixture of at least two from agricultural products.

Biofuels were humanity’s earliest energy carrier in the form of firewood. Forest biomass energy was the dominant energy form used in the United Kingdom, United States, and other industrialized countries before the Industrial Revolution when coal took over. Traditional biomass energy resources such as firewood and straw still dominate energy consumption today in sub-Saharan Africa, Myanmar, Nepal, Pakistan, Cambodia, Guatemala, and Haiti, and it is the largest renewable energy source used worldwide. However, biomass energy sources are not always used sustainably. Since these energy sources are ...