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Category: Cellulosic Ethanol
In a previous post I discussed real carbon negative energy, biofuels produced from plant biomass. Under certain practices, the very roots of the plants are the below ground carbon sink, while the above ground biomass is a potential fuel feedstock....
Posted by Sam Hazen at 12:30 PM • 16 Comments •
Category: Cellulosic Ethanol
Biofuels have definitely diminishing in political popularity. Not long ago, it seemed that it was all any politician could do to talk about biofuels. While Barak Obama did support "next generation of biofuels" in his speech at his nominating convention,...
Posted by Sam Hazen at 12:01 AM • 4 Comments •
Category: Cellulosic Ethanol
Recently the Department of Energy (DOE) announced funding support for two more biorefineries. This makes for a total of nine small-scale refineries recently selected for assistance to develop demonstration scale plants. In total, they have agreed to pay somewhere around...
Posted by Sam Hazen at 5:00 PM • 6 Comments •
Category: Cellulosic Ethanol
Following harvest of a grain crop, stalks or straw remain. The bulk of those materials are comprised of the sugar polymers cellulose and hemicellulose, which can be converted to liquid transportation fuel. Seems like something for nothing, remove "trash" from...
Posted by Sam Hazen at 9:00 AM • 3 Comments •
Category: Cellulosic Ethanol
Root systems of annual wheat (on the left in each panel) and intermediate wheat-grass, a perennial, at four times of the year. Although roughly 25% to 40% of the wheat-grass root system dies off and must grow back each...
Posted by Sam Hazen at 12:30 AM • 0 Comments •
Category: Cellulosic Ethanol
Technicians Calvin Vick (left) and John Massey measure switchgrass stem density and geometry at the upstream end of a riparian gully at Little Topashaw Creek in Mississippi. The object of this question is intended to be the grass not...
Posted by Sam Hazen at 9:00 AM • 5 Comments •
Category: Cellulosic Ethanol
Intensive technological development is required in order to sufficiently exploit any of the various sources of next generation energy discussed within this blog: wind, solar, agriculture, and ocean currents. The same is true for the use of batteries as a...
Posted by Sam Hazen at 8:00 AM • 16 Comments •
Category: Cellulosic Ethanol
The rise and fall of uncontrollable cellulose potential.
Posted by Solomon Hsiang at 1:00 AM • 19 Comments •
Category: Cellulosic Ethanol
Lately I find myself nostalgic for the good ol' days when it cost about $15 to top off my gas tank. Note by good ol' days, I mean the late 1990s... sigh. And truth is, if rates continue to spike...
Posted by Sheril R. Kirshenbaum at 10:00 AM • 84 Comments •
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