Impacts of Inorganic Material (Total Ash) on Surface Energy, Wettability, and Cohesion of Corn Stover

Juan H. Leal; Estrella L. Torres; William Travis Rouse; Cameron M. Moore; Andrew D. Sutton; Amber N. Hoover; Chenlin Li; Michael G. Resch; Bryon S. Donohoe; Allison E. Ray; Troy A. Semelsberger

doi:10.1021/acssuschemeng.9b06759

Impacts of Inorganic Material (Total Ash) on Surface Energy, Wettability, and Cohesion of Corn Stover

Juan H. Leal, Estrella L. Torres, William Travis Rouse, Cameron M. Moore, Andrew D. Sutton, Amber N. Hoover, Chenlin Li, Michael G. Resch, Bryon S. Donohoe, Allison E. Ray, Troy A. Semelsberger

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

The impacts and variability of inorganic material (measured as total ash) on surface area, surface energy, wettability, and cohesion of corn stover samples from Iowa were examined. The impact of total ash on the acid component of surface energy was determined to be significant with the acid component increasing with increasing ash content, in particular, the samples with total ash contents greater than 10%. Negligible effects with ash content were observed on both the dispersive and base components of surface energy. The work of cohesion for the compositions of corn stover with varying amounts of total inorganic matter increased with increasing total ash content, giving rise to potential bulk solids handling and transport challenges related to segregation, agglomeration, rat-holing, arching, and discontinuous flow patterns. Both the wettability (hydrophilicity) and work of cohesion increased for compositions of corn stover with increasing total inorganic content. Washing proved effective at removing extrinsic inorganic material from corn stover with a reduction in total ash content from 20.4% to 6.2%, accompanied by a significant reduction (from 85.6 to 42.5 mJ/m²) in the acid component of the surface energy.

Original language	English
Pages (from-to)	2061-2072
Number of pages	12
Journal	ACS Sustainable Chemistry and Engineering
Volume	8
Issue number	4
DOIs	https://doi.org/10.1021/acssuschemeng.9b06759
State	Published - Feb 3 2020
Externally published	Yes

Funding

This work was supported by the U.S. Department of Energy, Bioenergy Technologies (BETO) Office, as part of the FCIC: Feedstock Conversion Interface Consortium [CPS Agreement Number: 33740]. The authors would like to thank all our colleagues in the FCIC, Dr. Mark Elless, Dr. Art Wiselogel, Dr. Alison Goss Eng, Beau Hoffman, Liz Moore, and Dr. Steve Thomas of the Bioenergy Technologies Office for their support on Feedstock-Conversion Interface Consortium R&D. We also thank Sergio Hernandez (INL Biomass Feedstock Characterization Researcher) and Dr. Daniel Burnett (Director of Science Strategy at Surface Measurement Systems). This work was authored in part by Alliance for Sustainable Energy, LLC, the manager and operator of the National Renewable Energy Laboratory for the U.S. Department of Energy (DOE) under Contract No. DE-AC36-08GO28308. This research leveraged resources of the Biomass Feedstock National User Facility (BFNUF), which is a DOE Office of Energy Efficiency and Renewable Energy User Facility located at Idaho National Laboratory. This work was supported by the U.S. Department of Energy, Bioenergy Technologies (BETO) Office, as part of the FCIC: Feedstock Conversion Interface Consortium [CPS Agreement Number: 33740]. The authors would like to thank all our colleagues in the FCIC, Dr. Mark Elless, Dr. Art Wiselogel, Dr. Alison Goss Eng, Beau Hoffman Liz Moore, and Dr. Steve Thomas of the Bioenergy Technologies Office for their support on Feedstock-Conversion Interface Consortium R&D. We also thank Sergio Hernandez (INL Biomass Feedstock Characterization Researcher) and Dr. Daniel Burnett (Director of Science Strategy at Surface Measurement Systems). This work was authored in part by Alliance for Sustainable Energy, LLC, the manager and operator of the National Renewable Energy Laboratory for the U.S. Department of Energy (DOE) under Contract No. DE-AC36-08GO28308. This research leveraged resources of the Biomass Feedstock National User Facility (BFNUF), which is a DOE Office of Energy Efficiency and Renewable Energy User Facility located at Idaho National Laboratory.

Funders	Funder number
Beau Hoffman Liz Moore
BioEnergy Technologies
FCIC	33740
U.S. Department of Energy	DE-AC36-08GO28308
Office of Energy Efficiency and Renewable Energy
National Renewable Energy Laboratory
Idaho National Laboratory
Bioenergy Technologies Office

Keywords

Ash
Corn stover
Surface area
Surface energy
Wettability

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10.1021/acssuschemeng.9b06759

Cite this

Leal, J. H., Torres, E. L., Rouse, W. T., Moore, C. M., Sutton, A. D., Hoover, A. N., Li, C., Resch, M. G., Donohoe, B. S., Ray, A. E., & Semelsberger, T. A. (2020). Impacts of Inorganic Material (Total Ash) on Surface Energy, Wettability, and Cohesion of Corn Stover. ACS Sustainable Chemistry and Engineering, 8(4), 2061-2072. https://doi.org/10.1021/acssuschemeng.9b06759

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abstract = "The impacts and variability of inorganic material (measured as total ash) on surface area, surface energy, wettability, and cohesion of corn stover samples from Iowa were examined. The impact of total ash on the acid component of surface energy was determined to be significant with the acid component increasing with increasing ash content, in particular, the samples with total ash contents greater than 10%. Negligible effects with ash content were observed on both the dispersive and base components of surface energy. The work of cohesion for the compositions of corn stover with varying amounts of total inorganic matter increased with increasing total ash content, giving rise to potential bulk solids handling and transport challenges related to segregation, agglomeration, rat-holing, arching, and discontinuous flow patterns. Both the wettability (hydrophilicity) and work of cohesion increased for compositions of corn stover with increasing total inorganic content. Washing proved effective at removing extrinsic inorganic material from corn stover with a reduction in total ash content from 20.4% to 6.2%, accompanied by a significant reduction (from 85.6 to 42.5 mJ/m2) in the acid component of the surface energy.",

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AU - Ray, Allison E.

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AB - The impacts and variability of inorganic material (measured as total ash) on surface area, surface energy, wettability, and cohesion of corn stover samples from Iowa were examined. The impact of total ash on the acid component of surface energy was determined to be significant with the acid component increasing with increasing ash content, in particular, the samples with total ash contents greater than 10%. Negligible effects with ash content were observed on both the dispersive and base components of surface energy. The work of cohesion for the compositions of corn stover with varying amounts of total inorganic matter increased with increasing total ash content, giving rise to potential bulk solids handling and transport challenges related to segregation, agglomeration, rat-holing, arching, and discontinuous flow patterns. Both the wettability (hydrophilicity) and work of cohesion increased for compositions of corn stover with increasing total inorganic content. Washing proved effective at removing extrinsic inorganic material from corn stover with a reduction in total ash content from 20.4% to 6.2%, accompanied by a significant reduction (from 85.6 to 42.5 mJ/m2) in the acid component of the surface energy.

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Impacts of Inorganic Material (Total Ash) on Surface Energy, Wettability, and Cohesion of Corn Stover

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