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Neste has estimated that the use of NExBTL diesel cuts greenhouse gas emissions by 40 to 90 percent in comparison to fossil based diesel. [8] Due to the chemistry of the process, the renewable diesel is pure alkane and contains no aromatics, oxygen (although oxygen would have promoted cleaner combustion [9]) or sulfur. [3] [dead link ]
Renewable fuels are fuels produced from renewable resources. Examples include: biofuels (e.g. Vegetable oil used as fuel, ethanol, methanol from clean energy and carbon dioxide [1] or biomass, and biodiesel), Hydrogen fuel (when produced with renewable processes), and fully synthetic fuel (also known as electrofuel) produced from ambient carbon dioxide and water.
Numerous catalysts have been analyzed for their efficiency, as determined by the rate and yield of lipid conversion, as well as the degree of selectivity towards diesel fuel-range hydrocarbons. Supported metal catalysts have been found to be a promising class of catalysts for fuel production, with the supports most commonly used being oxides or ...
A rush by U.S. fuel makers to recalibrate their plants to produce renewable diesel has created a supply glut for low-emissions biofuels, hammering profit margins for refiners and threatening to ...
Diesel pros and cons. Pro: Along with power and torque, diesel engines are known to last a long time. Take, for example, the famed 1976 240D driven by a Greek taxi driver for nearly 3 million ...
Biodiesel can be used in any diesel engine and modified equipment when mixed with mineral diesel. It can also be used in its pure form (B100) in diesel engines, but some maintenance and performance problems may occur during wintertime utilization, since the fuel becomes somewhat more viscous at lower temperatures, depending on the feedstock used.
Renewable energy often displaces conventional fuels in four areas: electricity generation, hot water/space heating, transportation, and rural (off-grid) energy services. [22] Although almost all forms of renewable energy cause much fewer carbon emissions than fossil fuels, the term is not synonymous with low-carbon energy.
100% renewable energy is an energy system where all energy use is sourced from renewable energy sources. The endeavor to use 100% renewable energy for electricity, heating/cooling and transport is motivated by global warming, pollution and other environmental issues, as well as economic and energy security concerns.