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Process Intensification for Cellulosic Biorefineries.
Sunitha Sadula1, Abhay Athaley2, Weiqing Zheng1
1Catalysis Center for Energy Innovation and Department of Chemical and Biomolecular Engineering, University of Delaware, Delaware, 19716, USA.
Chemsuschem
|April 14, 2017
Summary
This study presents a novel one-pot process for converting biomass into soluble sugars, improving the economics of cellulosic biorefineries. This integrated approach reduces energy and water use, making renewable fuels more viable.
Area of Science:
- Biomass Conversion
- Renewable Energy
- Chemical Engineering
Background:
- Climate change and energy security necessitate renewable carbon sources like non-food biomass.
- Current cellulosic sugar production is energy- and water-intensive, hindering biorefinery economic viability.
- Upstream lignocellulose processing is a key challenge identified by techno-economic analysis (TEA).
Purpose of the Study:
- To develop an intensified, one-pot process for biomass depolymerization and saccharification.
- To enable efficient separation and upgrading of lignin and sugars.
- To improve the economic feasibility of cellulosic biorefineries.
Main Methods:
- A one-pot process integrating depolymerization and saccharification of diverse biomass feedstocks.
- Solid lignin separation for selective upgrading.
- Reactive extraction for energy-efficient furan sugar separation.
Main Results:
- High yields of soluble sugars achieved from woody biomass, energy crops, and agricultural residues.
- Efficient separation of lignin and sugars.
- Demonstration of economic production of feed streams for bioproducts.
Conclusions:
- The developed process intensifies operations, reducing water and energy consumption.
- Integrated upstream processing significantly improves the economic viability of cellulosic biorefineries.
- This approach offers a pathway for the sustainable and economic production of bio-based products.