Improving Sugar Yields and Reducing Enzyme Loadings in the Deacetylation and Mechanical Refining (DMR) Process through Multistage Disk and Szego Refining and Corresponding Techno-Economic Analysis
Abstract
Deacetylation and mechanical refining (DMR) has the potential to be a highly efficient biochemical conversion process for converting biomass to low toxicity, high concentration sugar streams. To increase the cost-effectiveness of the DMR process, improvements in enzymatic sugar yields are needed, in addition to reducing the refining energy consumed, and decreasing the enzyme usage. In this study, a second refining step utilizing a Szego mill was introduced, resulting in significant improvements in sugar yields in enzymatic hydrolysis at equivalent or lower refining energy inputs. The multistage DMR process increased the monomeric glucose and xylose yields to approximately 90% and 84%, respectively, with an energy consumption of 200 kWh/ODMT. SEM imaging revealed that Szego milling caused significant surface disruption and severe maceration and delamination of the biomass structure. Our results show that the DMR process is a very promising process for the biorefinery industry in terms of economic feasibility.
- Authors:
-
- National Bioenergy Center, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, Colorado 80401, United States
- Bioscience Center, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, Colorado 80401, United States
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario M5S 3E5, Canada
- Department of Forest Biomaterials, North Carolina State University, 2820 Faucette Drive, Campus box 8005, Raleigh, North Carolina 27695, United States
- Publication Date:
- Research Org.:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE); NREL (National Renewable Energy Laboratory (NREL), Golden, CO (United States))
- OSTI Identifier:
- 1227578
- Alternate Identifier(s):
- OSTI ID: 1235670
- Report Number(s):
- NREL/JA-5100-64773
Journal ID: ISSN 2168-0485
- Grant/Contract Number:
- AC36-08GO28308
- Resource Type:
- Published Article
- Journal Name:
- ACS Sustainable Chemistry & Engineering
- Additional Journal Information:
- Journal Name: ACS Sustainable Chemistry & Engineering Journal Volume: 4 Journal Issue: 1; Journal ID: ISSN 2168-0485
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 09 BIOMASS FUELS; 59 BASIC BIOLOGICAL SCIENCES; biorefinery; pretreatment; biomass saccharification; mechanical refining; Szego milling; PFI milling; disk refining; plant derived food; peptides and proteins; carbohydrates; biomass; energy; deacetylation; alkaline pretreatment; ethanol; sugar; techno-economic analysis
Citation Formats
Chen, Xiaowen, Wang, Wei, Ciesielski, Peter, Trass, Olev, Park, Sunkyu, Tao, Ling, and Tucker, Melvin P. Improving Sugar Yields and Reducing Enzyme Loadings in the Deacetylation and Mechanical Refining (DMR) Process through Multistage Disk and Szego Refining and Corresponding Techno-Economic Analysis. United States: N. p., 2015.
Web. doi:10.1021/acssuschemeng.5b01242.
Chen, Xiaowen, Wang, Wei, Ciesielski, Peter, Trass, Olev, Park, Sunkyu, Tao, Ling, & Tucker, Melvin P. Improving Sugar Yields and Reducing Enzyme Loadings in the Deacetylation and Mechanical Refining (DMR) Process through Multistage Disk and Szego Refining and Corresponding Techno-Economic Analysis. United States. https://doi.org/10.1021/acssuschemeng.5b01242
Chen, Xiaowen, Wang, Wei, Ciesielski, Peter, Trass, Olev, Park, Sunkyu, Tao, Ling, and Tucker, Melvin P. Wed .
"Improving Sugar Yields and Reducing Enzyme Loadings in the Deacetylation and Mechanical Refining (DMR) Process through Multistage Disk and Szego Refining and Corresponding Techno-Economic Analysis". United States. https://doi.org/10.1021/acssuschemeng.5b01242.
@article{osti_1227578,
title = {Improving Sugar Yields and Reducing Enzyme Loadings in the Deacetylation and Mechanical Refining (DMR) Process through Multistage Disk and Szego Refining and Corresponding Techno-Economic Analysis},
author = {Chen, Xiaowen and Wang, Wei and Ciesielski, Peter and Trass, Olev and Park, Sunkyu and Tao, Ling and Tucker, Melvin P.},
abstractNote = {Deacetylation and mechanical refining (DMR) has the potential to be a highly efficient biochemical conversion process for converting biomass to low toxicity, high concentration sugar streams. To increase the cost-effectiveness of the DMR process, improvements in enzymatic sugar yields are needed, in addition to reducing the refining energy consumed, and decreasing the enzyme usage. In this study, a second refining step utilizing a Szego mill was introduced, resulting in significant improvements in sugar yields in enzymatic hydrolysis at equivalent or lower refining energy inputs. The multistage DMR process increased the monomeric glucose and xylose yields to approximately 90% and 84%, respectively, with an energy consumption of 200 kWh/ODMT. SEM imaging revealed that Szego milling caused significant surface disruption and severe maceration and delamination of the biomass structure. Our results show that the DMR process is a very promising process for the biorefinery industry in terms of economic feasibility.},
doi = {10.1021/acssuschemeng.5b01242},
journal = {ACS Sustainable Chemistry & Engineering},
number = 1,
volume = 4,
place = {United States},
year = {Wed Dec 02 00:00:00 EST 2015},
month = {Wed Dec 02 00:00:00 EST 2015}
}
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https://doi.org/10.1021/acssuschemeng.5b01242
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