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Updated: Feb 11, 2026
09:21
Multipronged Phenotyping Approaches to Characterize Sugarcane Root Systems
Published on: August 17, 2022
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Defining research & development process targets through retro-techno-economic analysis: The sugarcane biorefinery
Andreza A Longati1, Anderson R A Lino1, Roberto C Giordano2
1Chemical Engineering Graduate Program, Federal University of São Carlos, C.P. 676, São Carlos, São Paulo 13565-905, Brazil.
Bioresource Technology
|May 4, 2018
Summary
This study introduces a new techno-economic analysis method for lignocellulosic ethanol production. It identifies key variables like enzyme load and yields, providing feasible operating windows for biorefineries.
Area of Science:
- Biochemical Engineering
- Renewable Energy Systems
- Process Economics
Background:
- Lignocellulosic ethanol production faces challenges in techno-economic viability.
- Integrated biorefineries offer a promising approach for sustainable biofuel generation.
- Optimizing process variables is crucial for economic feasibility.
Purpose of the Study:
- To develop a novel methodology for techno-economic analysis of lignocellulosic ethanol production.
- To provide feedback for Research & Development teams by defining targets for key process variables.
- To illustrate the methodology using an integrated first- and second-generation ethanol sugarcane biorefinery case study.
Main Methods:
- Utilized liquid hot water pretreatment for biomass.
- Employed enzymatic hydrolysis for cellulose fraction conversion.
- Evaluated fermentation or biodigestion for hemicellulose fraction utilization.
- Applied a new techno-economic analysis methodology to identify critical process variables.
Main Results:
- Identified enzyme load, cellulose-to-glucose yield, and xylose-to-ethanol yield as key economic drivers.
- Determined maximum feasible enzyme loads: 11.3 FPU/g cellulose (xylose fermentation) and 7.7 FPU/g cellulose (xylose biodigestion).
- Generated graphical 'windows of feasible operation' for experimental guidance.
Conclusions:
- The developed methodology effectively identifies critical variables impacting lignocellulosic ethanol production economics.
- The findings provide quantitative targets and operational insights for biorefinery optimization.
- This approach facilitates targeted research and development for improved biofuel process efficiency.
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