Search results
Results from the WOW.Com Content Network
Biofuels include bioethanol, an alcohol made by fermentation—often used as a gasoline additive, and biodiesel, which is usually used as a diesel additive. Specific energy is energy per unit mass, which is used to describe the chemical energy content of a fuel, expressed in SI units as joule per kilogram (J/kg) or equivalent units. [1]
Wood Pellets. There can be three different types of energy carriers produced from biomass: solid fuels (wood, briquettes, pellets, charcoal etc.), liquid fuels (methanol, ethanol, synthetic gasoline, biodiesel), gasses (biogas, hydrogen, syngas). Technically solid fuels can be made to be high-energy dense, hence Sweden produces biofuels mostly ...
The development of second-generation biofuels has seen a stimulus since the food vs. fuel dilemma regarding the risk of diverting farmland or crops for biofuels production to the detriment of food supply. The biofuel and food price debate involves wide-ranging views, and is a long-standing, controversial one in the literature.
Production of oil/biodiesel from rape covers more than 12,000 km 2 in Germany alone, and has doubled in the past 15 years. [10] Typical yield of oil as pure biodiesel is 100,000 L/km 2 (68,000 US gal/sq mi; 57,000 imp gal/sq mi) or higher, making biodiesel crops economically attractive, provided sustainable crop rotations are used that are ...
The environmental impact of biodiesel is complex and varies based on factors like feedstock type, land use changes, and production methods. While it can potentially reduce greenhouse gas emissions compared to fossil fuels, concerns about biodiesel include land use changes, deforestation, and the food vs. fuel debate.
Bioethanol is made by fermentation, mostly from carbohydrates produced in sugar or starch crops such as corn, sugarcane, or sweet sorghum. Bioethanol is widely used in the United States and in Brazil. Biodiesel is produced from the oils in for instance rapeseed or sugar beets and is the most common biofuel in Europe. [citation needed]
The two main types of biofuel currently being produced in Australia are biodiesel and bioethanol, used as replacements for diesel and petrol respectively. [1] As of 2017 Australia is a relatively small producer of biofuels, accounting for 0.2% of world bioethanol production and 0.1% of world biodiesel production.
The main sources of biofuels in Denmark include wood and wood products, energy from waste, straw, biogas, biodiesel and bioethanol. Biofuels have the potential to provide environmental and economic benefits but they must be carefully managed to ensure that they are truly sustainable resources. There is the potential for economic and ...