Life-cycle assessment of corn-based butanol as a potential transportation fuel.

Wu, May; Wang, M.; Liu, J.; Hong, Huasheng

doi:10.2172/925379

Cited by 50 publications

(59 citation statements)

References 16 publications

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“…The energy efficiencies of water in this work ranged from 15.32 MJ/L to 27.98 MJ/L. Wu et al assessed the water footprints of ethanol production from switchgrass and found that between 1.9 and 9.8 liters of water were required to produce one liter of ethanol [55]. These results correspond to energy efficiencies of water ranging from 0.62 MJ/L to 3.18 MJ/L.…”

Section: Maximimum Energy Efficiency Of Water Solutionmentioning

confidence: 50%

Life Cycle Network Modeling Framework and Solution Algorithms for Systems Analysis and Optimization of the Water-Energy Nexus

Garcia

You

2015

Processes

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Abstract:The water footprint of energy systems must be considered, as future water scarcity has been identified as a major concern. This work presents a general life cycle network modeling and optimization framework for energy-based products and processes using a functional unit of liters of water consumed in the processing pathway. We analyze and optimize the water-energy nexus over the objectives of water footprint minimization, maximization of economic output per liter of water consumed (economic efficiency of water), and maximization of energy output per liter of water consumed (energy efficiency of water). A mixed integer, multiobjective nonlinear fractional programming (MINLFP) model is formulated. A mixed integer linear programing (MILP)-based branch and refine algorithm that incorporates both the parametric algorithm and nonlinear programming (NLP) subproblems is developed to boost solving efficiency. A case study in bioenergy is presented, and the water footprint is considered from biomass cultivation to biofuel production, providing a novel perspective into the consumption of water throughout the value chain. The case study, optimized successively over the three aforementioned objectives, utilizes a variety of candidate biomass feedstocks to meet primary fuel products demand (ethanol, diesel, and gasoline). A minimum water footprint of 55.1 ML/year was found, economic efficiencies of water range from −$1.31/L to $0.76/L, and energy efficiencies of water ranged from 15.32 MJ/L to 27.98 MJ/L. These results show optimization provides avenues for process improvement, as reported values for the energy efficiency of bioethanol range from 0.62 MJ/L to 3.18 MJ/L. Furthermore, the proposed solution approach was shown to OPEN ACCESSProcesses 2015, 3 515 be an order of magnitude more efficient than directly solving the original MINLFP problem with general purpose solvers.

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Section: Maximimum Energy Efficiency Of Water Solutionmentioning

confidence: 50%

Life Cycle Network Modeling Framework and Solution Algorithms for Systems Analysis and Optimization of the Water-Energy Nexus

Garcia

You

2015

Processes

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“…Biobutanol can be used in higher percentage in combination with petrol than ethanol. The Acetone-Butanol-Ethanol (ABE) fermentation is the most common butanol production process [25], which was described, for example, by Mariano et al [26]. During ABE fermentation, bacteria produce acetone, butanol, and ethanol from starchy feedstock [27].…”

Section: Case Studymentioning

confidence: 99%

“…During ABE fermentation, bacteria produce acetone, butanol, and ethanol from starchy feedstock [27]. The feedstock used during the ABE fermentation is similar to that employed during the ethanol process; for example, corn [25] and sugarcane [26]. Brazil has significant experience in the production of ethanol from sugarcane and the use of bagasse combustion to generate the electricity and heat required during the ethanol production processes [26].…”

Section: Case Studymentioning

confidence: 99%

See 1 more Smart Citation

From Sustainability-as-usual to Sustainability Excellence in Local Bioenergy Business

Kasurinen¹,

Uusitalo²,

Väisänen³

et al. 2017

J. sustain. dev. energy water environ. syst.

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Cite as: Kasurinen, H., Uusitalo, V., Väisänen, S., Soukka, R., Havukainen, J., From Sustainability-as-usual to Sustainability Excellence in Local Bioenergy Business, J. sustain. dev. energy water environ. syst., 5(2), pp 240-272, 2017, DOI: http://dx.doi.org/10.13044/j.sdewes.d5.0146 ABSTRACTBioenergy business operators can significantly contribute to the sustainability of bioenergy systems. While research has addressed the maturity of corporate responsibility for sustainability, the maturity levels of bioenergy business have not been determined. The objectives of this research were to characterise the maturity levels of bioenergy corporate responsibility for sustainability and outline an approach by which companies can operate at the most mature sustainability excellence level. Literature, three workshops attended by bioenergy experts and a case study on biobutanol production in Brazil were used to develop the maturity model and approach. The results characterise the profitability, acceptability, and sustainability orientation maturity levels through sustainability questions and methods, and list the components of a systemic, holistic approach. Although the shift of business mindset from sustainability-as-usual to sustainability excellence is challenging, a systemic approach is necessary to broadly identify sustainability questions and a multitude of methods by which they can be answered.

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“…Table 1. Fuel properties of biobutanol and advances compared to ethanol [7][8][9] Property Advances compared to ethanol Blending ability Can be blended with gasoline or diesel fuel in higher concentrations without the need of vehicle retrofitting. With higher concentrations also the share of renewable components is increased in the final fuel mixture.…”

Section: Biobutanol -An Alternative Transportation Fuelmentioning

confidence: 99%

Biobutanol as a Potential Sustainable Biofuel - Assessment of Lignocellulosic and Waste-based Feedstocks

Niemistö¹,

Saavalainen²,

Pongrácz³

et al. 2013

J. sustain. dev. energy water environ. syst.

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Cite as: Niemistö, J., Saavalainen, P., Pongrácz, E., Keiski ABSTRACTThis paper introduces the production process of an alternative transportation biofuel, biobutanol. European legislation concerning biofuels and their sustainability criteria are also briefly described. The need to develop methods to ensure more sustainable and efficient biofuel production processes is recommended. In addition, the assessment method to evaluate the sustainability of biofuels is considered and sustainability assessment of selected feedstocks for biobutanol production is performed. The benefits and potential of using lignocellulosic and waste materials as feedstocks in the biobutanol production process are also discussed. Sustainability assessment in this paper includes cultivation, harvest/collection and upstream processing (pretreatment) of feedstocks, comparing four main biomass sources: food crops, non-food crops, food industry by-product and wood-based biomass. It can be concluded that the highest sustainable potential in Finland is when biobutanol production is integrated into pulp & paper mills.

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Life-cycle assessment of corn-based butanol as a potential transportation fuel.

Cited by 50 publications

References 16 publications

Life Cycle Network Modeling Framework and Solution Algorithms for Systems Analysis and Optimization of the Water-Energy Nexus

Life Cycle Network Modeling Framework and Solution Algorithms for Systems Analysis and Optimization of the Water-Energy Nexus

From Sustainability-as-usual to Sustainability Excellence in Local Bioenergy Business

Biobutanol as a Potential Sustainable Biofuel - Assessment of Lignocellulosic and Waste-based Feedstocks

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