Oikos Triple Zero Coconut Nutrition, Persona 3 Tabs, Black And Decker Mouse Sander Backing Pad, Serta Loveseat In A Box, How Technology Has Changed Communication In The Workplace, Porter Cable Random Orbit Sander 7335 Parts, Bronte Pistachio Cake, Deontology In Nursing, " />
Nov 28

| Joshua Smyth started writing in 2003 and is based in St. John's, Newfoundland. “Switchgrass Cost of Production: Data from On-Farm Trials, 2001-2005” Agricultural Economics Report 184. Biomass and Bioenergy 58:286-293. The cost of these enzymes is the major stumbling block to economically viable switchgrass ethanol production. Since additional ethanol could be produced from pentoses, or five-carbon sugars, as conversion technology improves, the NIRS method can be used to estimate what the total potential yield of ethanol or other biofuels would be if all sugars in the plant were converted. With this information, 13 traits can be determined, such as the total theoretical or maximum ethanol yield as well as the efficiency of the conversion from sugars to ethanol. “Corn is the easiest crop to grade for ethanol yield,” says Vogel, who is in the ARS Grain, Forage and Bioenergy Research Unit in Lincoln. ARS Home Switchgrass, a crop touted by venture capitalists and environmentalists alike as a next-generation ethanol feedstock, yields about five times more energy than … So Why Switchgrass? On a large scale, changes in longitude do not make a difference in switchgrass yields, but variations in latitude affect temperatures and photoperiod (day length), which can influence switchgrass … 2010. However, on marginal cropland in the western Corn Belt, perennial biomass crops like switchgrass can potentially produce more ethanol per acre than corn. Although much ethanol production, especially in the United States, comes from corn, switchgrass is a promising alternative. Switchgrass was subjected to steam explosion in view of ethanol and CH 4 production.. This information enables the biorefinery to pay switchgrass producers for both the tonnage and the quality of their crop. 3 b). The resulting net annual In the Central Plains trials, the average ethanol yields from switchgrass would amount to 450 gallons per acre or 79 gallons per ton. Unlike many other crops, switchgrass is a wild grass that doesn't need special care or fertilizer inputs. FOIA Remove the processed cellulose from the water and add special yeasts, which should be available from the same supplier as the enzymes. Perrin, Richard, Kenneth Vogel, Marty Schmer, and Rob Mitchell. Measuring cell wall sugars can also be used to calculate the maximum yield for fermentation to other biofuels and chemicals. Creating these fuels from plants can reduce the environmental and political problems caused by a reliance on oil. Policies and Links To distill pure ethanol, benzene or cyclohexane must be added to the mixture. The scientists used NIRS to test switchgrass varieties and experimental lines adapted to the Midwest and found significant differences for actual and potential ethanol yield per ton and per acre. Masterson is holding a sample ring with the ground switchgrass sample. The highest theoretical yield of ethanol (82%, 18.6 g/L) was produced from switchgrass pretreated at 200C and 10 min using SSF at 45C with thermotolerant yeast Kluyveromyces marxianus IMB 4 and 15 FPU cellulase/g glucan loading. | Another plus with the new cultivar is that gains in yield were achieved without an increase in nitrogen fertilizer use, which helped lower expected farm-gate production costs by around $20 to $30 per ton. Some processing operations use special microscopic filters instead. In a competitive world market for crop-based ethanol, the future belongs to sugarcane and switchgrass. These chemicals bind to and remove the last small bits of water from the distillate. Vogel says, “The importance of this study is that we’ve shown it’s feasible to use NIRS to estimate ethanol yields of switchgrass at about $5 a sample, instead of $300 to $2,000 a sample using conventional analytical methods. It is the largest study to date examining the net energy output, greenhouse gas emissions, biomass yields, agricultural inputs and estimated cellulosic ethanol production from switchgrass grown and managed for … Overview. An experimental upland strain, NE 2229, had the highest predicted ethanol yields per ton, with the third highest crop yield. 3b). | Researchers have developed an inexpensive way to grade the ethanol potential of perennial grasses at the biorefinery's loading dock - the first use of near-infrared sensing (NIRS) to measure 20 components in switchgrass biomass that determine its potential value to biorefiners. It is most productive on moderately well to well-drained soils of medium fertility and a soil pH at 5.0 or above. The glucan loading for SSF was 40 g/L. | Schematic of a Biochemical Cellulosic Ethanol Production Process. d Processing distribution energy, credits for co-products of corn and combustion of lignin from switchgrass. Yields have averaged 18 tons to 20 tons in variety trials.

Oikos Triple Zero Coconut Nutrition, Persona 3 Tabs, Black And Decker Mouse Sander Backing Pad, Serta Loveseat In A Box, How Technology Has Changed Communication In The Workplace, Porter Cable Random Orbit Sander 7335 Parts, Bronte Pistachio Cake, Deontology In Nursing,

Share and Enjoy:
  • Digg
  • del.icio.us
  • Facebook
  • Google
  • E-mail this story to a friend!
  • LinkedIn
  • MySpace
  • Reddit
  • Slashdot
  • StumbleUpon
  • Tumblr
  • TwitThis

Comments are closed.