Sep 19, 2019 (LCA) results from the U.S. Environmental Protection. Agency's (EPA) regulatory impact analysis (RIA) of corn ethanol for the Renewable Fuel

to the corn cultivation, and fossil fuels consumption. Keywords: life cycle assessment (LCA), bio-ethanol, CO2 balance 1 INTRODUCTION Bioethanol derived from biomass is often considered a significant contributor for a sustainable transportation fuel. There are two primary technologies to make bioethanol fuel on industrial scale. The first

Eur J Clin Nutr CHEMINFO (2008) Sensitivity Analysis of Bioethanol LCA Models to Smith F B, (2007) Corn-based Ethanol: A Case Study in the Law of ECOLOGICAL FOOTPRINT ANALYSIS OF CANNED SWEET CORN that can facilitate such a goal are life cycle assessment (LCA) and eco- logical footprint (EF). ethanol en elektriciteit, deze worden geproduceerd met huidige processen. därför inte kunnat fā fram LCA data som underlag för beräkning. Pimentel, D., and T. W. Patzek. 2005. Ethanol.

Sci., 4, 261–268. Luo, L. et al.(2009) »Allocation issues in LCA methodology: a case study of corn stover-based fuel ethanol«.

The life cycles of the fuels include gasoline production, corn and stover agriculture, cellulosic ethanol production, blending ethanol with gasoline to produce E10 (10% of ethanol) and E85 (85% of ethanol), and finally the use of gasoline, E10, E85, and ethanol. In this study, a substantially broader set of eight environmental impacts is covered.

LCA of Corn‐Ethanol Systems. Direct‐effect life cycle energy and GHG assessment of corn‐ethanol considers the energy used for feedstock production and harvesting, including fossil fuels (primarily diesel) for field operations and electricity for grain drying and irrigation (Liska and Cassman 2008). 2014-01-30 · The carbon intensity (CI) of corn ethanol—i.e., the greenhouse gas emissions produced via the production of a volume of the fuel—is declining, while the average CI of gasoline produced from petroleum sources is gradually increasing, according to a recent report prepared by Life Cycle Associates, LLC for the Renewable Fuels Association (RFA). Selection of corn ethanol plant type affects LCA results Dry mill (nearly 90% of fleet) Wet mill Process fuel –Natural gas –Coal –Biomass Corn oil extraction Integrated production of corn and stover ethanol 11 The life cycles of the fuels include gasoline production, corn and stover agriculture, cellulosic ethanol production, blending ethanol with gasoline to produce E10 (10% of ethanol) and E85 (85% of ethanol), and finally the use of gasoline, E10, E85, and ethanol.

products like corn stover. A life cycle assessment (LCA) evaluates the ‘‘cradle to gate’’ impact of corn stover feedstock production for cellulosic EtOH production in three corn-producing regions in Quebec for two impact categories: energy and greenhouse gas (GHG) impacts.

been implemented. Renewable bio-based fuels such as ethanol and biodiesel are straw and corn stover in China.

The largest yields were noticed for sugar beet, corn, potatoes and energy forest.
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This number has been the criticism of corn ethanol because of the large amount of fossil energy used to produce ethanol. Selection of corn ethanol plant type affects LCA results Dry mill (nearly 90% of fleet) Wet mill Process fuel –Natural gas –Coal –Biomass Corn oil extraction Integrated production of corn and stover ethanol 11 Energy used in the conversion of corn to ethanol includes transportation of grain to the biorefinery, grain milling, starch liquefaction and hydrolysis, fermentation to biofuel, and coproduct processing and transport.
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2012-12-13 · Relative to petroleum gasoline, ethanol from corn, sugarcane, corn stover, switchgrass and miscanthus can reduce life-cycle GHG emissions by 19–48%, 40–62%, 90–103%, 77–97% and 101–115%, respectively. Similar trends have been found with regard to fossil energy benefits for the five bioethanol pathways.

This study focuses only on corn stover-based ethanol as one case. Further studies may include other types of cellulosic feedstocks (i.e., switchgrass or wood), which require less intensive agricultural practice and may lead to better environmental performance of fuel ethanol.

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Life cycle analysis (LCA) of ethanol production from corn grain has yielded a net energy ratio of 1.2 to 1.45 (Liska et al., 2009), which represents just a 20% to 45% positive energy balance in producing ethanol from corn. A major criticism of corn ethanol has been the large amount of fossil energy used in production.

26 different corn etanol plant types. Environmental cycle assessment (LCA), process modelling with Aspen Plus and case study LCA of ethanol fuel produced from corn ethanol conversion technologies.