Sentences with phrase «corn stover»
"Corn stover" refers to the leaves, stalks, and other parts of a corn plant that are left behind after the corn kernels have been harvested. Full definition
EPA spokeswoman Liz Purchia said in a statement that the study «does not provide useful information relevant to the life cycle greenhouse gas emissions from corn stover ethanol.»
canadianbusiness.com
The facility is a two ton per day biorefinery which uses corn stover as feedstock — meaning the residual corn leaves, husks, and stalks left after harvest are used as the raw materials from which the fuel is derived.
Cellulose - loving fungi can cut biofuel costs by enabling existing corn ethanol plants to process cheaper, woody feedstocks such as corn stover
Future harvest of corn stover for cellulosic ethanol production would increase erosion (i.e. sedimentation) and nutrient loads from corn land, they said.
Suh, K., Suh, S. 2010: Economic and environmental implications of corn stover densification options for biofuel in Minnesota, Transactions of ASABE, 53 (4): 1183 - 1192
Vertimass anticipates that the ORNL technology will be in demand by existing corn - based ethanol production plants, as well as new refineries coming online that aim to convert non-food crops such as switchgrass, poplar wood and corn stover into biofuels.
«If everything is done right, probably we can use corn stover without other problems, though it might mean you have to grow a cover crop.»
Atalla finds that briefly soaking corn stover (the leftover parts of the plant, such as husks) in a solution of sodium hydroxide, ethanol, and water changes the molecular structure of the cellulose, allowing him to convert nearly twice as much of it as is possible with existing methods.
Last February, the Department of Energy selected sixcompanies to receive funding towards building ethanol plants — scheduled to beoperational within the next three years — that will utilize new technology forprocessing corn stover as well as other types of agricultural waste.
An efficient way to break down celluloseinto ethanol is necessary to reduce the cost of processing corn stover on acommercial scale.
«It's tempting to use corn stover because it's already there — farmers who grow corn don't have to plant another crop to produce biofuel feedstock,» Khanna said.
«But in some cases corn stover is only about 59 percent cleaner than gasoline while miscanthus is about 140 percent cleaner.
Even though corn stover may in some cases be cheaper to produce, it is a much more expensive way to reduce greenhouse gas emissions than energy grasses,» Khanna said.
So if we want to reduce greenhouse gas emissions and lower the carbon intensity of our fuel, energy grasses such as miscanthus and switchgrass are going to result in the biggest reductions, not corn stover.»
Suh, K., Suh, S., Walseth, B., Bae, J., Barker, R., 2011: Optimal corn stover logistics for biofuel production: a case in Minnesota, Transactions of ASABE, 54 (1), 219 - 238.
The U.S. Department of Energy has provided more than $ 1 billion in federal funds to support research to develop cellulosic biofuels, including ethanol made from corn stover.
The center's mission is to develop chemical catalysts and associated technologies that can transform biomass such as trees, grasses and corn stover into fuel and chemicals.
One pathway uses corn stover for feedstock, the other... Read more →
Biofuels made from sources that do not require land conversion, such as corn stover (the parts of corn plants left over after the ears are harvested), animal waste, damaged trees, algae, and food waste are promising alternatives.
One pathway uses corn stover for feedstock, the other... Read more →
As a result, today's technology can coax only about 65 gallons of ethanol out of every ton of corn stover, instead of the 90 NREL is counting on.
Better yet, every plant contains cellulose, so there is no need to restrict the fermentation process to corn stover.
Corn stover — the husks, stalks, and cobs chewed up and spit out by the combine — is, in a sense, about two - thirds sugar.
This, in fact, is part of the reason the company located there rather than competing on the mainland with cellulosic ethanol makers for corn stover or the like.
A bioenergy field trial in Wisconsin is evaluating how switchgrass, Miscanthus, corn stover, poplar trees, and native prairie grasses stack up against each other.
Of course, Congress envisioned that 16 billion gallons of that ethanol would be from corn stover and other cellulosic material.
And, if other forms of waste, such as the stalks of corn plants (corn stover) or the remnants of timber harvest are included, Klann says, «we have enough feedstock in the U.S. to offset 70 percent of the oil import.»
Corn stover — the stalks, leaves and cobs in cornfields after harvest — has been considered a ready resource for cellulosic ethanol production.
Typically, the enzymes tapped to help turn switchgrass, corn stover (corn stalks, leaves and other leftovers) and poplar into biofuels amount to about 20 percent of production costs, said Chundawat, whose department is in the School of Engineering.
Next - generation biofuels will open and expand markets for additional agricultural products (wheat, barley, staws, grasses, corn stover, woody biomass).
In thecase of corn stover (the leaves andstalks remaining in the field after corn is harvested), 250 million dry tonsare produced each year and are rarely utilized, other than to feed grazingcattle immediately after a harvest.
Incontrast to corn stover, wood wastehas limited potential due to the high cost associated with collection andtransportation (in the case of wood left over from timber harvesting) andcompeting uses (in the case of mill residues, which are currently used formulch, particle board, and to power other facilities).
«Ethanol made from miscanthus would need a much smaller carbon price to make it desirable to produce and for consumers to purchase as compared to ethanol from switchgrass and corn stover.
As it stands, such cellulosic biorefineries get their materials either from the residue of conventional crops, such as corn stover, or from harvesting trees.
A handful of other cellulosic ethanol plants, which will make biofuels from corn stover, wheat straw and municipal waste, plan to begin production by next year (ClimateWire, Aug. 5).
«In biomass like wood, corn stover and switchgrass, cellulose is the most abundant polymer that researchers are trying to convert to biofuels and plastics,» said chemist Z. Conrad Zhang, who led the work while at PNNL's Institute for Integrated Catalysis.
A new biochemical leaching process has been developed that uses corn stover as feedstock, and recovers valuable rare earth metals from electronic waste.
Corn stover is a leading contender for feedstock.
Cellulose is key for U.S. fuel needs, according to Scott Kohl, technical director at ICM, who suggested that excess cellulose currently available in the U.S. — which includes corn fiber, switchgrass, corn stover, wheat straw, wood waste, and energy crops — could be sufficient to replace imported petroleum products.
Michael Blaylock, Ph.D., vp of systems development at Edenspace Systems, reported on the status of Energy Corn ™, a feedstock designed to lower the cost of producing cellulosic biofuels from corn stover.
Advanced biofuels can be derived from lignocellulosic feedstocks, such as agricultural waste (e.g., corn stover, wheat straw, rice hulls), agricultural processing byproducts (e.g., corn fiber or sugar cane bagasse), forestry and wood processing waste, the paper portion of municipal solid waste, or dedicated energy crops such as switchgrass.
He described corn and corn stover — products of an annual domesticated crop in abundant supply, with low marginal costs of production, low acceptance barriers to farmers, and relative ease of bioengineering — as «the most promising near - term, high - volume source of cellulosic biomass for ethanol» and «a bridging crop between first - and second - generation bioethanol.
When Congress created the Renewable Fuel Standard (RFS) more than a decade ago, lawmakers hoped the federal fuels program would spur development of a domestic biofuels industry that would help reduce oil imports with millions and millions of gallons of homegrown ethanol — with a particular focus on increasing volumes of cellulosic biofuel made from corn stover, wood chips, miscanthus or other cellulosic feedstocks.
Economists have recently done field studies to determine just how much the feedstocks — the grasses, wood chips, straw, or corn stover — actually cost to grow, harvest, and get to a biofuels plant.