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Environmental Assessment of Bio-base...
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Montazeri, Mahdokht.
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Environmental Assessment of Bio-based Fuels and Chemicals Using LCA Methodology.
紀錄類型:
書目-電子資源 : Monograph/item
正題名/作者:
Environmental Assessment of Bio-based Fuels and Chemicals Using LCA Methodology./
作者:
Montazeri, Mahdokht.
出版者:
Ann Arbor : ProQuest Dissertations & Theses, : 2017,
面頁冊數:
205 p.
附註:
Source: Dissertation Abstracts International, Volume: 78-10(E), Section: B.
Contained By:
Dissertation Abstracts International78-10B(E).
標題:
Environmental engineering. -
電子資源:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10276044
ISBN:
9781369806601
Environmental Assessment of Bio-based Fuels and Chemicals Using LCA Methodology.
Montazeri, Mahdokht.
Environmental Assessment of Bio-based Fuels and Chemicals Using LCA Methodology.
- Ann Arbor : ProQuest Dissertations & Theses, 2017 - 205 p.
Source: Dissertation Abstracts International, Volume: 78-10(E), Section: B.
Thesis (Ph.D.)--Northeastern University, 2017.
This item is not available from ProQuest Dissertations & Theses.
Based on US EPA and DOE projections, biomass derived fuels and chemicals will supply up to 17% and 10% of total demand for transport fuels and basic chemicals, respectively, during the coming decade. Such large-scale production requires environmental assessment at a systems level using tools such as life cycle assessment (LCA). This dissertation combines chemical engineering process modeling with LCA to assess environmental impacts of novel bio-based products and synthesis routes. Four projects of this dissertation include, (1) a statistical meta-analysis of life cycle GHG emission and energy use results for priority bio-based chemicals; (2) a process design and LCA analysis of a novel catalytic depolymerization process for production of aromatics from the lignin fraction of woody biomass; (3) an industry-sponsored assessment of the net environmental benefits of substitution of renewable chemical building blocks in the formulation of wood flooring coatings; and (4) evaluation of integrated fuel, energy, and chemicals production from a microalgal biorefinery, considering time-dependent fractional growth kinetics of freshwater and marine microalgae.
ISBN: 9781369806601Subjects--Topical Terms:
548583
Environmental engineering.
Environmental Assessment of Bio-based Fuels and Chemicals Using LCA Methodology.
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Based on US EPA and DOE projections, biomass derived fuels and chemicals will supply up to 17% and 10% of total demand for transport fuels and basic chemicals, respectively, during the coming decade. Such large-scale production requires environmental assessment at a systems level using tools such as life cycle assessment (LCA). This dissertation combines chemical engineering process modeling with LCA to assess environmental impacts of novel bio-based products and synthesis routes. Four projects of this dissertation include, (1) a statistical meta-analysis of life cycle GHG emission and energy use results for priority bio-based chemicals; (2) a process design and LCA analysis of a novel catalytic depolymerization process for production of aromatics from the lignin fraction of woody biomass; (3) an industry-sponsored assessment of the net environmental benefits of substitution of renewable chemical building blocks in the formulation of wood flooring coatings; and (4) evaluation of integrated fuel, energy, and chemicals production from a microalgal biorefinery, considering time-dependent fractional growth kinetics of freshwater and marine microalgae.
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In general, assessment results of bio-based fuels and chemicals were found to be sensitive to process and LCA model parameters, especially the choice of conversion process, co-product allocation method, and inclusion/exclusion of emissions from land use change. Net GHG emissions results for most sugar-derived chemicals met existing sustainability thresholds, while thermochemical conversions routes typically did not. High-yield conversion of lignin to catechol via catalytic depolymerization is environmentally preferable, when coupled with upstream process modifications such as use of lignin-rich sources and recovery/substitution of chlorinated solvents and ozone-depleting substances. Such a modified pathway showed 6%-80% reduction in impacts, compared to fossil-based catechols. For use of renewable building blocks in industrial coating formulations, substitution of corn-derived chemicals with identical chemicals derived from corn stover reduced impacts by more than 50% across impact categories, primarily due to reductions in on-field emissions. Finally, time-dependent microalgal biorefinery designs were optimized through simultaneous consideration of on-site energy production and protein recovery, in addition to conventional lipid-derived biofuel. Overall, this dissertation develops novel LCA modeling methods and provides guidance for bio-based product design and development and policy.
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