Butanol has a higher energy content per
gallon than ethanol, and can be used directly in gasoline engines, making it a better choice.
This «something» are alkylates, aromatics and reformates — which have been trading on commodity markets about $ 1.20 more per
gallon than ethanol (last time I checked N.Y. Harbor prices).
Not exact matches
You can «absolutely» make money by going green, said Khosla, who believes
ethanol can eventually be produced for less
than $ 1 a
gallon.
Using Patzek's methodology for every aspect of
ethanol production save the conversion process itself, a
gallon of Corn Plus
ethanol consumes less energy
than it contains — even before factoring in credit for coproducts.
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.
The researchers conducted more
than 60 experiments in which about 3.5 ounces of saline or
ethanol solutions representing the planetary projectile that hit Earth was dropped into a rectangular tank holding about six
gallons of fluid representing the early Earth.
The company can produce more
than 100
gallons of fuel per ton based on lab experiments because bacteria make more
ethanol: «We aren't producing butanol, propanol, hexanol, octanol, and all the other alcohols,» Bolsen says.
However, more
than 10 billion
gallons of
ethanol will be transported and blended in 2009, and the earlier limitations in
ethanol distribution and blending are no longer the major factor in the growth of the industry.
It takes something like seven percent more energy to create a
gallon of
ethanol than that
gallon even contains.
Doug Fehan: «The performance level of E85 compared to gasoline, when we look at a
gallon - to -
gallon comparison, there is about 20 percent less energy in a
gallon of
ethanol than in a
gallon of gasoline.
A
gallon of
ethanol has a lower energy content
than a
gallon of gasoline (as measured by BTU content).
In addition to what they say,
ethanol carries only a fraction of the btu's per
gallon than gasoline.
The RFS calls for more
than 30 billion
gallons of
ethanol in 10 years, half of that coming from cellulose.
But the
ethanol boosters are ignoring some unpleasant facts: Ethanol won't significantly reduce our oil imports; adding more ethanol to our gas tanks adds further complexity to our motor - fuel supply chain, which will lead to further price hikes at the pump; and, most important (and most astonishing), it may take more energy to produce a gallon of ethanol than it actually co
ethanol boosters are ignoring some unpleasant facts:
Ethanol won't significantly reduce our oil imports; adding more ethanol to our gas tanks adds further complexity to our motor - fuel supply chain, which will lead to further price hikes at the pump; and, most important (and most astonishing), it may take more energy to produce a gallon of ethanol than it actually co
Ethanol won't significantly reduce our oil imports; adding more
ethanol to our gas tanks adds further complexity to our motor - fuel supply chain, which will lead to further price hikes at the pump; and, most important (and most astonishing), it may take more energy to produce a gallon of ethanol than it actually co
ethanol to our gas tanks adds further complexity to our motor - fuel supply chain, which will lead to further price hikes at the pump; and, most important (and most astonishing), it may take more energy to produce a
gallon of
ethanol than it actually co
ethanol than it actually contains.
The greens, hawks, and farmers helped convince the Senate to add an
ethanol provision to the energy bill — now awaiting action by a House - Senate conference committee — that would require refiners to more
than double their use of
ethanol to 8 billion
gallons per year by 2012.
Water use for Alberta oil extraction is a tiny fraction of what's needed to grow corn and convert it into
ethanol that gets a third less mileage per
gallon than gasoline.
The process is able to yield more
than 100
gallons of
ethanol per ton of dry biomass.
Today, amid an anemic economy and joblessness far worse
than official government figures admit, President Obama balks at approving the Keystone XL pipeline, cancels leasing and drilling on federal lands, tells our budget - sequestered military to buy $ 26 to $ 67 - per -
gallon ship and jet fuel, punishes refineries for not buying cellulosic
ethanol that doesn't exist, and happily lets EPA shut down coal - fired power plants and kill countless thousands of mining, utility and other jobs.
Ethanol contains 33 percent less energy per gallon than gasoline, so engines fueled with higher ethanol blended gas will attain fewer miles per gallon than those running on conventional gasoline
Ethanol contains 33 percent less energy per
gallon than gasoline, so engines fueled with higher
ethanol blended gas will attain fewer miles per gallon than those running on conventional gasoline
ethanol blended gas will attain fewer miles per
gallon than those running on conventional gasoline (E10).
The
ethanol yield per acre from sugarcane is nearly 600
gallons, a third higher
than that from corn.
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.
This summer, expensive and rare corn has left 26
ethanol plants idle — some for more
than a year — removing 1.5 billion
gallons of production, according to the industry trade group, the Renewable Fuels Association.
In summary, there is sufficient land zoned for sugar cane for Brazil to produce approximately 4 — 5 times as much
ethanol than is produced today (˜6.2 billion
gallons in 2008).
According to a 2008 analysis by Iowa State University, the growth in U.S.
ethanol fuel production caused retail gasoline prices to be 29 — 40 cents per
gallon lower
than would otherwise have been the case.
U.S.
ethanol production shot up by more
than 3 billion
gallons (150 %) between 2001 and 2006, and corn production increased 11 %, while total U.S. harvested cropland fell by about 2 % in the same period.
Whether or not
ethanol is better
than gasoline depends on the direct and indirect environmental impacts associated with the production, delivery, and ultimate use of each
gallon of
ethanol, including any changes in land use.
Oil Palm produces ~ 500
gallons / acre of biodiesel, and it's a perennial — less fuel for plowing & planting, and squeezing the oil out is less energy intensive
than distilling
ethanol.
Second, it takes more
than a
gallon of
ethanol to displace a
gallon of gasoline.
Ethanol got worse miles per
gallon than gasoline.
Not biodiesel, conventional diesel fuel: The plant will have a capacity of more
than 10,000
gallons per year and will, using synthetic biology, reengineer microbes so that yeast can ferment sugar to produce hydrocarbons instead of
ethanol.