Improving estimates of biorefinery sustainability via enhanced consideration of location

Stewart, Dalton William

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https://hdl.handle.net/2142/125804 Copy

Description

Title

Improving estimates of biorefinery sustainability via enhanced consideration of location

Author(s)

Stewart, Dalton William

Issue Date

2024-07-10

Director of Research (if dissertation) or Advisor (if thesis)

Guest, Jeremy S

Doctoral Committee Chair(s)

Guest, Jeremy S

Committee Member(s)

• Stillwell, Ashlynn S
• Khanna, Madhu
• Coppess, Jonathan W
• Dunn, Jennifer B

Department of Study

Civil & Environmental Eng

Discipline

Environ Engr in Civil Engr

Degree Granting Institution

University of Illinois at Urbana-Champaign

Degree Name

Ph.D.

Degree Level

Dissertation

Keyword(s)

• biofuels
• bioproducts
• bioenergy
• biomanufacturing
• cellulosic ethanol
• sustainable aviation fuel (SAF)
• techno-economic analysis (TEA)
• life cycle assessment (LCA)

Abstract

Cellulosic biofuels present an impactful opportunity to reduce the greenhouse gas emissions associated with transportation fuels and avoid some of the consequential effects of climate change. Despite this and other benefits including maintaining biodiversity and reducing negative effects on human health, cellulosic biofuel production remains technologically challenging and expensive. The continued emergence of new bioenergy crops and biorefining technologies, combined with variation in economic context, farming practices, and energy sources across the United States, requires characterization of a technology’s financial and environmental sustainability via techno-economic analysis (TEA) and life cycle assessment (LCA). The objectives of this work are (1) to evaluate the influence of location-specific policy incentives and economic parameters on the financial viability of biorefineries, (2) to assess how low carbon fuel program provisions affect biofuel carbon intensity (CI) estimates and resulting financial viability, and (3) to synthesize methodological recommendations for agile TEA and LCA that may ultimately be used inform the development of future biofuel policy. The research objectives were accomplished by supplementing existing refinery-scale TEA models with spatially-explicit datasets of input parameters; evaluating the availability and utility of field-level data for inputs that affect the environmental impacts of growing bioenergy feedstocks; and performing a comprehensive literature review of biorefinery TEAs and LCAs. Ultimately, the results of this work may be used to generate improved biorefinery TEA and LCA results, in turn better informing the development of public policy and addressing the threat of climate change.

Graduation Semester

2024-08

Type of Resource

Thesis

Handle URL

https://hdl.handle.net/2142/125804

Copyright and License Information

Copyright 2024 Dalton Stewart

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