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The biofuels that are secreted by the bioengineered organisms are expected to have higher photon-to-fuel conversion efficiency, compared to older generations of biofuels. [89] One of the advantages of this class of biofuels is that the cultivation of the organisms that produce the biofuels does not require the use of arable land. [90]
Biofuel development and use is a complex issue because there are many biofuel options which are available. Biofuels, such as ethanol and biodiesel , are currently produced from the products of conventional food crops such as the starch, sugar and oil feedstocks from crops that include wheat , maize , sugar cane , palm oil and oilseed rape .
Biodiesel is a liquid fuel composed of vegetable oils and or animal fats. To create the gasoline itself, these subsequent liquids are combined with alcohol. Biodiesel is used to fuel compression ignition engines, otherwise known as diesel engines. The most common product of biodiesel is B20, a 20:80 blend: 20% biodiesel to 80% petroleum diesel.
The government's relationship with biofuels has proved a lesson in mixed signals. Yes, ethanol blends of 15% were approved for gasoline in 2013, yet another sign of the dominance of the biofuel ...
Better Than Corn? Algae Set to Beat Out Other Biofuel Feedstocks (Worldwatch Institute). The End of Cheap Food. (Cover Story). 2007 Economist 385(8558):11–12. Energy Policy Act of 2005. 2005 Public Law 109-58. Pimentel, David. 2009 Corn Ethanol as Energy. Harvard International Review 31(2):50–52. Scully, Vaughan. 2007 Effects of the Biofuel ...
Any unburned gas that escapes contains methane, a long lived greenhouse gas. The key difference from fossil natural gas is that it is often considered partly or fully carbon neutral , [ 31 ] since the carbon dioxide contained in the biomass is naturally renewed in each generation of plants, rather than being released from fossil stores and ...
Separate quotas and blending requirements are determined for cellulosic biofuels, biomass-based diesel, advanced biofuels, and total renewable fuel. Exemptions for small producers are considered when calculating blending ratios. [3] [6] Advanced biofuels are required to meet stricter air pollution requirements than regular corn-based ethanol. [7]
Biodiesel is a renewable biofuel, a form of diesel fuel, derived from biological sources like vegetable oils, animal fats, or recycled greases, and consisting of long-chain fatty acid esters. It is typically made from fats. [1] [2] [3]