Sentences with phrase «percent more ethanol»

At MIT, scientists have engineered a new yeast strain that can survive in high levels of sugar and ethanol, producing 50 percent more ethanol than its natural cousins.

Not exact matches

A 5 percent ethanol solution was no more effective than water at cutting the burn.

The researchers, who found that ethanol requires 29 percent more fossil energy than it provides, question the morality of using grain to fuel cars in the face of world hunger.

A more realistic, if still optimistic, scenario sketched by the National Corn Growers Association anticipates that corn ethanol production will quadruple to 16 billion gallons by 2015, not quite 7 percent of the likely demand.

By 2001 every BTU consumed in ethanol production generated 67 percent more energy, when coproducts like distillers» grains are taken into account.

Since then, corn ethanol production has more than doubled to about 36.5 million gallons per day — meaning ethanol already is nearly 10 percent of U.S. fuel supply.

Studies have shown that using fuels composed of more than 85 percent ethanol reduce a variety of air pollutants.

From the atmosphere's point of view, growing biomass to burn in a power plant and using the electricity to move a car avoids 10 tons of carbon dioxide emissions per acre, or 108 percent more emission offsets than ethanol.

As attorney general, Pruitt in 2013 filed a friend of the court brief with the U.S. Supreme Court in which he argued the EPA ignored the risks that gasoline with more than 10 percent ethanol can pose to cars» fuel systems as well as the RFS requirement's possible effect on food prices.

They contain more energy per volume; a car driving on a gallon of ethanol will go only 67 percent as far as a car on a gallon of gasoline; on butanol, it can go 80 percent as far.

This means that switchgrass ethanol delivers 540 percent of the energy used to produce it, compared with just roughly 25 percent more energy returned by corn - based ethanol according to the most optimistic studies.

It takes something like seven percent more energy to create a gallon of ethanol than that gallon even contains.

David Pimentel, a professor of ecology at Cornell University who has been studying grain alcohol for 20 years, and Tad Patzek, an engineering professor at the University of California, Berkeley, co-wrote a recent report that estimates that making ethanol from corn requires 29 percent more fossil energy than the ethanol fuel itself actually contains.

fuel mixtures containing 85 percent or more by volume of methanol, denatured ethanol, and other alcohols with gasoline or other fuels

The researchers found that using biomass to produce electricity for electric vehicles would produce 81 percent more transportation miles than using the same amount of crops to produce ethanol.

In fact, using any fuel that contains more than 10 percent ethanol is illegal to use in outdoor power equipment.

However, greater than 10 percent ethanol in outdoor power equipment can corrode metals and rubber and cause engines to break down more quickly.

Switchgrass ethanol, though, can yield 540 percent more energy than is required to produce it, the new study says.

They say the technological fixes also distract from more challenging social reforms like slowing the rate of population growth, shifting away from crops like corn ethanol that don't put food on the table, or ending subsidies for livestock production, which currently eats up an appalling 75 percent of the world's agricultural land.

A gallon of ethanol contains about 30 percent less energy than a gallon of gasoline; this is one of the reasons that the May 15th AAA Daily Fuel Gauge report shows that, on an energy - output basis, gasoline containing 15 percent ethanol is 58 cents more expensive than regular grade gasoline.

When we assume the ethanol production process is fully renewable, it would take all the corn in the country to displace about 3.5 percent of our gasoline consumption — only slightly more than we could displace by making sure drivers» tires are inflated properly.

Researchers found that burning biomass to produce electricity for electric vehicles would produce 81 percent more transportation miles than using the same crops to produce ethanol.

Because the wind turbines would require a modest amount of spacing between them to allow room for the blades to spin, wind farms would occupy about 0.5 percent of all U.S. land, but this amount is more than 30 times less than that required for growing corn or grasses for ethanol.

The decision in May 2009 to raise U.S. auto fuel efficiency standards 40 percent by 2016 will reduce U.S. dependence on oil far more than converting the country's entire grain harvest into ethanol could.

Corn ethanol emits about 20 percent fewer greenhouse gases than gasoline, but it requires more water, and it has raised the price of grain and food.

The cleanest alternative, cellulosic ethanol from grasses or wood chips, could reduce emissions by more than 85 percent (graph, click to enlarge).

Switchgrass a better biofuel source than corn (1/7/2008) Switchgrass yields more than 540 percent more energy than the energy needed to produce and convert it to ethanol, making the grassy weed a far superior source for biofuels than corn ethanol, reports a study published in Proceedings of the National Academy of Sciences (PNAS).