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Corn-Based Ethanol Production - Focus on Energy

Focus on Energy© 2009 - 2 - EXECUTIVE SUMMARY The objective of this Corn-based Ethanol Production Energy Best Practice Guidebook is to provide resources and methods to reduce energy use and energy related costs in existing dry mill ethanol plants. Using this guidebook, ethanol plant managers will learn how to manage energy in their facility and

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Building the Evidence on Corn Ethanol’s Greenhouse Gas ...

Jul 29, 2021  A new study looks at the greenhouse gas benefits of corn ethanol. Images courtesy of USDA. Over the past two decades, the demand for renewable fuels — including corn-based ethanol — has helped drive a strong domestic market for corn, and supported rural America by generating jobs (PDF, 1.5 MB). New research is confirming that corn ethanol also has more greenhouse gas benefits

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Alternative Fuels Data Center: Ethanol Production - Energy

Ethanol Production and Distribution. Ethanol is a domestically produced alternative fuel most commonly made from corn. It is also made from cellulosic feedstocks, such as crop residues and wood—though this is not as common.U.S. ethanol plants are concentrated in the Midwest because of the proximity to corn production.

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Corn Ethanol: Another Bad Option For Energy

The price of most food will be affected by increased ethanol production. Fuel ethanol uses around 12 million acres of land for corn, about 15 % of the current acreage used for corn production. [4] The percentage is only going to go up with more focus being put on alternative fuels.

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Environmental Challenges Associated With Corn Ethanol ...

corn ethanol production largely have been ignored until very recently, but increased concern over global warming, sea rise, and potential threats to life on planet earth (Hansen, 2006), bring the environmental challenges more into focus. Advantages of Energy Conservation and Plug-In Vehicles

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Determining the Cost of Producing Ethanol from Corn Starch ...

production cost breakdown for each process. The largest cost contributor in the corn starch process is the feedstock; for the lignocellulosic process it is the depreciation of capital cost, which is represented by depreciation cost on an annual basis. Comparative Production Costs for Starch and Lignocellulose Processes (1999$)-$0.30-$0.10 $0.10 ...

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Give Ethanol a Chance: The Case for Corn-Based Fuel ...

The corn-derived ethanol industry has lowered per-gallon in-plant energy use by 75 percent since the early 1980s. And enzymatic research has been the foundation for new developments in bioplastics and other bioproducts. We are nearing the end of the corn-to-ethanol era. Ethanol production has doubled since 2005 and promises to double again by 2010.

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An energy analysis of ethanol from cellulosic feedstock ...

Oct 01, 2009  LCA-type of values including energy conversion would systematically be higher, in our case study around 45%. The net energy value of cellulosic ethanol production is substantially higher than the ones of the corn-based technologies, and it is similar to incineration and gasification for electricity production.

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Understanding the reductions in US corn ethanol production ...

Jan 01, 2009  Corn-based ethanol accounts for 97% of total US ethanol production (Urbanchuk, 2007).The US is the largest corn producer in the world, with production in 2005 reaching 282 million tonnes (see Fig. 1), representing 40% of the world's corn production.Highest corn yields up to 10 tonnes/ha are obtained in the US (USDA/FAS, 2007).US corn supply almost doubled between 1975

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Life cycle assessment of corn-based ethanol production in ...

As a result, the production of ethanol evidenced a low production cost (0.549 USD/L), higher energy efficiency (45.1%) and higher CO2 emissions (0.17 kg per MJ EtOH) in comparison to the biomass ...

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A Review of the Environmental Effects of the Renewable ...

Figure 1: Real Ethanol Production pre-2005 vs. Renewable Fuel Standard Mandate 0 5 10 15 20 25 30 35 40 1981 1985 1990 1995 2000 2005 2010 2015 2020 RFS Enactment Real Production RFS Mandate Billions of Gallons Source: US Department of Energy, Alternative Fuels Data Center, “U.S. Production, Consumption, and Trade of Ethanol,” https://www ...

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Optimization of Water Consumption in Second Generation ...

water consumption of the corn based process with the values calculated for the second generation of ethanol production plants. The first data available in the literature regarding water consumption in ethanol plants reveal values from 3 to 15 gal water / gal ethanol for the corn based process. According to the literature 46,49,50,51 the best ...

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Energy Returns on Ethanol Production Science

Jun 23, 2006  Energy Returns on Ethanol Production. In their Report “Ethanol can contribute to energy and environmental goals” (27 Jan., p. 506 ), A. E. Farrell et al. focus in part on whether biomass-derived ethanol fuel delivers positive net energy [i.e., whether energy return on energy invested (EROI) exceeds 1:1; see ( 1 )].

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The Ethanol Mandate: Don’t Mend It, End It The Heritage ...

Jun 12, 2013  The production of cellulosic ethanol, made from nonfood sources, is nowhere near to meeting its targets, while refiners may be required to blend excess corn-based ethanol as a

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Ethanol Producer Magazine – The Latest News and Data About ...

Mar 27, 2007  The NCGA would also like to see more research money available to increase the efficiency of corn-based ethanol and the continuation of the federal procurement of biobased products program. Basically, the corn growers are calling for more funding for the energy title, Olson says, pointing out that while the 2002 bill authorized $250 million for ...

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The impact of ethanol production on food prices: The role ...

Feb 01, 2012  One particular aspect that has received much attention is the possible connection between ethanol production and food price inflation. 4 The impact of ethanol on food prices may happen in two ways, either reallocating produced food crops to fuel production (e.g., sugarcane being allocated to ethanol rather than to sugar) or affecting the ...

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Ethanol's Sweet Side (NYSE:CSAN) Seeking Alpha

Aug 28, 2007  For example, the production of ethanol yields an energy balance of 1.3 to 1, or 1.3 units of corn ethanol produced for every unit of oil/diesel/coal. I should note that there is

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Impact of energy prices and cellulosic biomass supply on ...

Sep 01, 2015  Turning to the changes in production of biofuels, higher consumption of E85 boosts domestic ethanol production by 16.6% in the high crude oil price only scenario . This growth comes from both corn-based ethanol, which is 18.7% higher relative to the baseline, and cellulosic ethanol from corn stover, 9.5% higher relative to the baseline.

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Reducing the cost, environmental impact and energy ...

Jan 01, 2015  Regarding bioethanol, Pimentel (2003) was the first to address this issue in bioethanol production plants. He estimates an energy consumption of 75,118 BTU/gal for corn-based bioethanol. Shapouri et al. (2004) obtains a lower energy consumption of 51,779 BTU/gal in the corn-based bioethanol production.

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ethanol Iowa Environmental Focus

Dec 04, 2019  July 29, 2016 Nick Fetty Energy, News, Politics biofuel, Cedar Rapids Gazette, Dave Loebsack, Energy, ethanol, Iowa, Politico, renewable energy, solar energy, wind energy Rep. Dave Loebsack proposed legislation that would establish a national flood center, possibly at the University of Iowa, during an press conference in Iowa City on June 6, 2016.

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Today in Energy - eia.gov

Aug 30, 2012  Energy Information Administration - EIA - Official Energy Statistics from the U.S. Government Drought has significant effect on corn crop condition, projected ethanol production - Today in Energy - U.S. Energy Information Administration (EIA)

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(PDF) Economics and Energy of Ethanol Production from ...

Economics and Energy of Ethanol Production from Alfalfa, Corn, and Switchgrass in the Upper Midwest, USA

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Most Promising Advances in Energy Production

In the case of corn-based ethanol, for one unit of energy that is required to plant, grow, harvest, and process the corn, the energy yield of the resulting ethanol is 1.3 units; so the "return on energy invested" to produce ethanol from corn is 1.3.

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Energy Returns on Ethanol Production - Robert Costanza

Energy– and USDA-funded research. Energy Returns on Ethanol Production IN THEIR REPORT “ETHANOL CAN CONTRIBUTE to energy and environmental goals” (27 Jan., p. 506), A. E. Farrell et al. focus in part on whether biomass-derived ethanol fuel deliv-ers positive net energy [i.e., whether energy return on energy invested (EROI) exceeds 1:1 ...

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(PDF) New perspectives on the energy return on (energy ...

New perspectives on the energy return on (energy) investment (EROI) of corn ethanol. Environment, Development and Sustainability, 2011. Charles Hall. David Murphy. Bobby Powers. Charles Hall. David Murphy. Bobby Powers. Download PDF.

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Ethanol Producer Magazine – The Latest News and Data About ...

To accomplish a rational energy and food policy, I believe we need to excise corn-based fuel from the renewable fuel mandate altogether. Instead we should focus on cellulosic ethanol, coal-to-liquid, butanol, and compressed natural gas. All these fuels would alleviate our dependence on unreliable foreign energy without squeezing our food supply."

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Reducing the cost, environmental impact and energy ...

Jan 01, 2015  Regarding bioethanol, Pimentel (2003) was the first to address this issue in bioethanol production plants. He estimates an energy consumption of 75,118 BTU/gal for corn-based bioethanol. Shapouri et al. (2004) obtains a lower energy consumption of 51,779 BTU/gal in the corn-based bioethanol production.

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(PDF) Energy returns on ethanol production

The ratio of energy produced to energy consumed by an energy production technology-known as the energy return on investment (EROI)-is an important first indicator of the potential benefits to society.

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What are the Advantages and Disadvantages of Ethanol Fuel?

Even if all the available farmland in the United States were converted to corn fields for ethanol production, it still would only meet a small percentage of the country's total energy needs. Corn production can be very labor intensive, and the corn crops could still be vulnerable to bad weather, droughts or insect damage.

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Big Oil Steps Into Brazilian Ethanol Renewable Energy World

May 20, 2008  Worldwide biofuel production rose around 20%, to an estimated 54 billion liters in 2007, accounting for 1-1/2 percent of global liquid fuel supply, according to the Worldwatch Institute. Fuel ethanol production from sugar or starch crops rose 18 percent to 46 billion liters last year, the sixth consecutive year of double-digit growth.

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ethanol Iowa Environmental Focus

Dec 04, 2019  July 29, 2016 Nick Fetty Energy, News, Politics biofuel, Cedar Rapids Gazette, Dave Loebsack, Energy, ethanol, Iowa, Politico, renewable energy, solar energy, wind energy Rep. Dave Loebsack proposed legislation that would establish a national flood center, possibly at the University of Iowa, during an press conference in Iowa City on June 6, 2016.

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Renewable Energy wisconsinacademy

Renewable energy is an under-developed opportunity for Wisconsin, given that only 10.2 percent of Wisconsin’s electricity is generated from renewable sources, and neighboring states are pursuing much more aggressive goals. With the price of solar energy becoming increasingly competitive with other energy sources, this is a great time for Wisconsin to embrace solar energy for generating on ...

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Subcommittee Works to Boost Biofuels Research and ...

Jun 14, 2007  Current biofuels, mostly corn ethanol, represent less than 5 percent of total gasoline sold. Expansion of corn-based ethanol leads to concerns about the competition with feed and food supply and water and nutrient demand associated with corn production. Thus, the focus on diversifying biomass sources for biofuel production has shifted to ...

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Novozymes to Build New $80-100M Ethanol Enzymes Production ...

Jun 23, 2008  Initially the focus of the new plant will be to supply enzymes for corn based ethanol and enzymes for cellulosic ethanol start ups. The plant in Blair will be designed for later expansions to ensure Novozymes can meet demands for enzymes for cellulosic ethanol. We are undertaking an unprecedented effort to make these enzymes available by 2010.

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