One of the knocks about trying to turn fatty wastes into biodiesel is the use of sulfuric acid to aid in the esterification process to remove the free fatty acids (FFAs) that appear in high quantities in low quality oils. But researchers at Wake Forest and Virginia Tech universities have found a sugar-based alternative to sulfuric acid to improve the …
Cellulosic Byproduct Increases Ethanol Yield
Scientists from the University of Illinois have reported that they have engineered yeast to consume acetic acid, a previously unwanted byproduct of the process of converting plant leaves, stems and other tissues into biofuels. This innovation increases ethanol yield from lignocellulosic sources (aka second generation feedstocks) by nearly 10 percent. According to researchers, the new advance will streamline the fermentation …
NREL Calculates Emissions, Cost of Wind & Solar
According to new research from the Energy Department’s National Renewable Energy Laboratory (NREL), found that carbon emissions induced by more frequent cycling are negligible (<0.2%) when compared with the carbon reductions achieved through wind and solar power generation. Cycling occurs when a utility, to accommodate higher amounts of wind and solar power on the electric grid, must ramp down and …
U of Cincy Team Captures Grease for Biodiesel
A student team from the University of Cincinnati is being recognized for their idea to capture waste grease and turn it into biodiesel. The school’s Team Effuelent, led by students Ron Gillespie, Ethan Jacobs, and Qingshi Tu won the $40,000 prize in the Odebrecht Award for Sustainability Development Competition with their concept of “Using Trap Grease As the Raw Material …
Environmental Impacts of Biofuel Feedstocks Studied
A two-year study has examined the environmental impacts of feedstocks used for biofuels. Minnesota Daily reports researchers from the University of Minnesota found that there are some fundamental differences between how the Environmental Protection Agency, the Department of Energy and the Department of Agriculture, look at biofuel production. All three agencies differed in crop location, which Hill said is an …
Defunding Biodiesel, Ethanol Center Draws Rep’s Ire
The North Carolina legislature’s lack of approving funds for a center that promotes the development of biodiesel and ethanol in the state draws the ire of one of its own members. In an opinion piece for the Herald Sun of Durham, N.C., State Representative G.K. Butterfield says the Biofuels Center of North Carolina in Oxford will soon close for good …
Analysis: Biodiesel Still Profitable Despite Price Drop
Biodiesel producers remain profitable despite a recent drop in prices for the green fuel. An analysis from Scott Irwin and Darrel Good with the University of Illinois shows that several factors, including an uncertain future of federal tax credits and a drop in soybean oil prices. There are likely two explanations for the current spike [in profits]. First, diesel blenders …
How Thirsty is Energy Production?
Critics of renewable energy have dozens of reasons why alternative energy such as wind and solar just won’t work such as what happens when the wind doesn’t blow and the sun doesn’t shine. But according to a new report prepared by Synapse Energy Economics, “dirty” energy sources including coal-fired electric power, nuclear power and natural gas recovered by fracking, face …
Students Raise the Green Flag for Algae
Students and professors at Utah State University are raising the green flag for algae with a record breaking small engine dragster. Earlier this month at the Bonneville Salt Flats, the Aggie A-Salt Streamliner clocked in at 73.977 miles per hour – beating the current record in their division of 72.102. The team hopes to set additional records with their algal-biofueled …
Coffee Cup Could Become the Next Biodiesel Tank
That hot cup of Joe in the morning could become more than just a jolt to get your body going; it could be the next tankful of biodiesel to get your vehicle going. Researchers at the University of Cincinnati are figuring out how to turn old coffee grounds into biodiesel, and Yang Liu, from the school’s College of Engineering and …