The Experts below are selected from a list of 6033 Experts worldwide ranked by ideXlab platform
Puneet Dwivedi - One of the best experts on this subject based on the ideXlab platform.
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cost of abating greenhouse gas emissions with Cellulosic Ethanol
Environmental Science & Technology, 2015Co-Authors: Puneet Dwivedi, Weiwei Wang, Tara W Hudiburg, Deepak Jaiswal, William J Parton, Stephen P Long, Evan H Delucia, Madhu KhannaAbstract:We develop an integrated framework to determine and compare greenhouse gas (GHG) intensities and production costs of Cellulosic Ethanol derived from corn stover, switchgrass, and miscanthus grown on high and low quality soils for three representative counties in the Eastern United States. This information is critical for assessing the cost-effectiveness of utilizing Cellulosic Ethanol for mitigating GHG emissions and designing appropriate policy incentives to support Cellulosic Ethanol production nationwide. We find considerable variations in the GHG intensities and production costs of Ethanol across feedstocks and locations mostly due to differences in yields and soil characteristics. As compared to gasoline, the GHG savings from miscanthus-based Ethanol ranged between 130% and 156% whereas that from switchgrass ranged between 97% and 135%. The corresponding range for GHG savings with corn stover was 57% to 95% and marginally below the threshold of at least 60% for biofuels classified as Cellulosic biofu...
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Cellulosic Ethanol production in the united states conversion technologies current production status economics and emerging developments
Energy for Sustainable Development, 2009Co-Authors: Puneet Dwivedi, J R R AlavalapatiAbstract:Abstract Details of existing conversion technologies for Cellulosic Ethanol production, both hydrolysis and thermochemical, have been discussed along with their present adoption status. Furthermore, economics of Ethanol production by using different conversion technologies has been discussed. Emerging conversion technologies and other developments which might affect the Cellulosic Ethanol production are also characterized. Based on current estimates, it was found that about 400 million gallons of Cellulosic Ethanol will be produced in the country in coming years using different conversion technologies. It was noticed that out of several available conversion technologies, thermochemical-based technologies are gaining popularity and it is projected that the use of these conversion technologies will reduce the Cellulosic Ethanol production cost significantly. Similarly, recent advancements in hydrolysis-based technologies have also helped in reducing the production cost of Cellulosic Ethanol. However, more resources will be needed in coming years to meet the policy goal of producing 21 billion gallons of Cellulosic Ethanol by the year 2022. It is expected that this review will be helpful in efficient allocation of resources for facilitating future technology development and in streamlining the whole initiative of Cellulosic Ethanol production in the United States.
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Cellulosic Ethanol production in the United States: Conversion technologies, current production status, economics, and emerging developments
Energy for Sustainable Development, 2009Co-Authors: Puneet Dwivedi, J R R Alavalapati, Partha LalAbstract:Details of existing conversion technologies for Cellulosic Ethanol production, both hydrolysis and thermochemical, have been discussed along with their present adoption status. Furthermore, economics of Ethanol production by using different conversion technologies has been discussed. Emerging conversion technologies and other developments which might affect the Cellulosic Ethanol production are also characterized. Based on current estimates, it was found that about 400 million gallons of Cellulosic Ethanol will be produced in the country in coming years using different conversion technologies. It was noticed that out of several available conversion technologies, thermochemical-based technologies are gaining popularity and it is projected that the use of these conversion technologies will reduce the Cellulosic Ethanol production cost significantly. Similarly, recent advancements in hydrolysis-based technologies have also helped in reducing the production cost of Cellulosic Ethanol. However, more resources will be needed in coming years to meet the policy goal of producing 21 billion gallons of Cellulosic Ethanol by the year 2022. It is expected that this review will be helpful in efficient allocation of resources for facilitating future technology development and in streamlining the whole initiative of Cellulosic Ethanol production in the United States. © 2009 International Energy Initiative.
Partha Lal - One of the best experts on this subject based on the ideXlab platform.
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Cellulosic Ethanol production in the United States: Conversion technologies, current production status, economics, and emerging developments
Energy for Sustainable Development, 2009Co-Authors: Puneet Dwivedi, J R R Alavalapati, Partha LalAbstract:Details of existing conversion technologies for Cellulosic Ethanol production, both hydrolysis and thermochemical, have been discussed along with their present adoption status. Furthermore, economics of Ethanol production by using different conversion technologies has been discussed. Emerging conversion technologies and other developments which might affect the Cellulosic Ethanol production are also characterized. Based on current estimates, it was found that about 400 million gallons of Cellulosic Ethanol will be produced in the country in coming years using different conversion technologies. It was noticed that out of several available conversion technologies, thermochemical-based technologies are gaining popularity and it is projected that the use of these conversion technologies will reduce the Cellulosic Ethanol production cost significantly. Similarly, recent advancements in hydrolysis-based technologies have also helped in reducing the production cost of Cellulosic Ethanol. However, more resources will be needed in coming years to meet the policy goal of producing 21 billion gallons of Cellulosic Ethanol by the year 2022. It is expected that this review will be helpful in efficient allocation of resources for facilitating future technology development and in streamlining the whole initiative of Cellulosic Ethanol production in the United States. © 2009 International Energy Initiative.
J R R Alavalapati - One of the best experts on this subject based on the ideXlab platform.
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Cellulosic Ethanol production in the united states conversion technologies current production status economics and emerging developments
Energy for Sustainable Development, 2009Co-Authors: Puneet Dwivedi, J R R AlavalapatiAbstract:Abstract Details of existing conversion technologies for Cellulosic Ethanol production, both hydrolysis and thermochemical, have been discussed along with their present adoption status. Furthermore, economics of Ethanol production by using different conversion technologies has been discussed. Emerging conversion technologies and other developments which might affect the Cellulosic Ethanol production are also characterized. Based on current estimates, it was found that about 400 million gallons of Cellulosic Ethanol will be produced in the country in coming years using different conversion technologies. It was noticed that out of several available conversion technologies, thermochemical-based technologies are gaining popularity and it is projected that the use of these conversion technologies will reduce the Cellulosic Ethanol production cost significantly. Similarly, recent advancements in hydrolysis-based technologies have also helped in reducing the production cost of Cellulosic Ethanol. However, more resources will be needed in coming years to meet the policy goal of producing 21 billion gallons of Cellulosic Ethanol by the year 2022. It is expected that this review will be helpful in efficient allocation of resources for facilitating future technology development and in streamlining the whole initiative of Cellulosic Ethanol production in the United States.
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Cellulosic Ethanol production in the United States: Conversion technologies, current production status, economics, and emerging developments
Energy for Sustainable Development, 2009Co-Authors: Puneet Dwivedi, J R R Alavalapati, Partha LalAbstract:Details of existing conversion technologies for Cellulosic Ethanol production, both hydrolysis and thermochemical, have been discussed along with their present adoption status. Furthermore, economics of Ethanol production by using different conversion technologies has been discussed. Emerging conversion technologies and other developments which might affect the Cellulosic Ethanol production are also characterized. Based on current estimates, it was found that about 400 million gallons of Cellulosic Ethanol will be produced in the country in coming years using different conversion technologies. It was noticed that out of several available conversion technologies, thermochemical-based technologies are gaining popularity and it is projected that the use of these conversion technologies will reduce the Cellulosic Ethanol production cost significantly. Similarly, recent advancements in hydrolysis-based technologies have also helped in reducing the production cost of Cellulosic Ethanol. However, more resources will be needed in coming years to meet the policy goal of producing 21 billion gallons of Cellulosic Ethanol by the year 2022. It is expected that this review will be helpful in efficient allocation of resources for facilitating future technology development and in streamlining the whole initiative of Cellulosic Ethanol production in the United States. © 2009 International Energy Initiative.
Bradley T. Zigler - One of the best experts on this subject based on the ideXlab platform.
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Techno-economic analysis and life-cycle assessment of Cellulosic isobutanol and comparison with Cellulosic Ethanol and n-butanol
Biofuels Bioproducts and Biorefining, 2014Co-Authors: Ling Tao, Robert Mccormick, Eric C.d. Tan, Andy Aden, Xin He, Min Zhang, Bradley T. ZiglerAbstract:This work presents a detailed analysis of the production design and economics of the Cellulosic isobutanol conversion processes and compares Cellulosic isobutanol with Cellulosic Ethanol and n-butanol in the areas of fuel properties and engine compatibility, fermentation technology, product purification process design and energy consumption, overall process economics, and life cycle assessment. Techno-economic analysis is used to understand the current stage of isobutanol process development and the impact of key parameters on the overall process economics in a consistent way (i.e. using the same financial assumptions, plant scale, and cost basis). The calculated minimum isobutanol selling price is $3.62/gasoline gallon equivalent ($/GGE) - similar to $3.66/GGE from the n-butanol process and higher than $3.26/GGE from the Cellulosic Ethanol conversion process. At the conversion stage, the n-butanol process emits the most direct CO2, at 26.42 kg CO2/GGE. Isobutanol and Ethanol plants have relatively similar CO2 emissions, at 21.91 kg CO2/GGE and 21.01 kg CO2/GGE, respectively. The consumptive water use of the biorefineries increases in the following order: Ethanol (8.19 gal/GGE)
Ling Tao - One of the best experts on this subject based on the ideXlab platform.
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Techno-economic analysis and life-cycle assessment of Cellulosic isobutanol and comparison with Cellulosic Ethanol and n-butanol
Biofuels Bioproducts and Biorefining, 2014Co-Authors: Ling Tao, Robert Mccormick, Eric C.d. Tan, Andy Aden, Xin He, Min Zhang, Bradley T. ZiglerAbstract:This work presents a detailed analysis of the production design and economics of the Cellulosic isobutanol conversion processes and compares Cellulosic isobutanol with Cellulosic Ethanol and n-butanol in the areas of fuel properties and engine compatibility, fermentation technology, product purification process design and energy consumption, overall process economics, and life cycle assessment. Techno-economic analysis is used to understand the current stage of isobutanol process development and the impact of key parameters on the overall process economics in a consistent way (i.e. using the same financial assumptions, plant scale, and cost basis). The calculated minimum isobutanol selling price is $3.62/gasoline gallon equivalent ($/GGE) - similar to $3.66/GGE from the n-butanol process and higher than $3.26/GGE from the Cellulosic Ethanol conversion process. At the conversion stage, the n-butanol process emits the most direct CO2, at 26.42 kg CO2/GGE. Isobutanol and Ethanol plants have relatively similar CO2 emissions, at 21.91 kg CO2/GGE and 21.01 kg CO2/GGE, respectively. The consumptive water use of the biorefineries increases in the following order: Ethanol (8.19 gal/GGE)