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Title: Improved methods for the determination of drying conditions and fraction insoluble solids (FIS) in biomass pretreatment slurry

Abstract

Accurate and precise chemical characterization of biomass feedstocks and process intermediates is a requirement for successful technical and economic evaluation of biofuel conversion technologies. The uncertainty in primary measurements of the fraction insoluble solid (FIS) content of dilute acid pretreated corn stover slurry is the major contributor to uncertainty in yield calculations for enzymatic hydrolysis of cellulose to glucose. This uncertainty is propagated through process models and impacts modeled fuel costs. The challenge in measuring FIS is obtaining an accurate measurement of insoluble matter in the pretreated materials, while appropriately accounting for all biomass derived components. Three methods were tested to improve this measurement. One used physical separation of liquid and solid phases, and two utilized direct determination of dry matter content in two fractions. We offer a comparison of drying methods. Lastly, our results show utilizing a microwave dryer to directly determine dry matter content is the optimal method for determining FIS, based on the low time requirements and the method optimization done using model slurries.

Authors:
ORCiD logo; ; ; ; ; ; ORCiD logo
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Bioenergy Technologies Office (EE-3B)
OSTI Identifier:
1255163
Alternate Identifier(s):
OSTI ID: 1257331
Report Number(s):
NREL/JA-5100-64690
Journal ID: ISSN 0961-9534; S0961953416301830; PII: S0961953416301830
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Published Article
Journal Name:
Biomass and Bioenergy
Additional Journal Information:
Journal Name: Biomass and Bioenergy Journal Volume: 91 Journal Issue: C; Journal ID: ISSN 0961-9534
Publisher:
Elsevier
Country of Publication:
United Kingdom
Language:
English
Subject:
09 BIOMASS FUELS; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; biomass; biofuels; slurry; drying; fraction insoluble solids; separation

Citation Formats

Sluiter, Amie, Sluiter, Justin, Wolfrum, Ed, Reed, Michelle, Ness, Ryan, Scarlata, Christopher, and Henry, Jeanette. Improved methods for the determination of drying conditions and fraction insoluble solids (FIS) in biomass pretreatment slurry. United Kingdom: N. p., 2016. Web. doi:10.1016/j.biombioe.2016.05.027.
Sluiter, Amie, Sluiter, Justin, Wolfrum, Ed, Reed, Michelle, Ness, Ryan, Scarlata, Christopher, & Henry, Jeanette. Improved methods for the determination of drying conditions and fraction insoluble solids (FIS) in biomass pretreatment slurry. United Kingdom. doi:10.1016/j.biombioe.2016.05.027.
Sluiter, Amie, Sluiter, Justin, Wolfrum, Ed, Reed, Michelle, Ness, Ryan, Scarlata, Christopher, and Henry, Jeanette. Mon . "Improved methods for the determination of drying conditions and fraction insoluble solids (FIS) in biomass pretreatment slurry". United Kingdom. doi:10.1016/j.biombioe.2016.05.027.
@article{osti_1255163,
title = {Improved methods for the determination of drying conditions and fraction insoluble solids (FIS) in biomass pretreatment slurry},
author = {Sluiter, Amie and Sluiter, Justin and Wolfrum, Ed and Reed, Michelle and Ness, Ryan and Scarlata, Christopher and Henry, Jeanette},
abstractNote = {Accurate and precise chemical characterization of biomass feedstocks and process intermediates is a requirement for successful technical and economic evaluation of biofuel conversion technologies. The uncertainty in primary measurements of the fraction insoluble solid (FIS) content of dilute acid pretreated corn stover slurry is the major contributor to uncertainty in yield calculations for enzymatic hydrolysis of cellulose to glucose. This uncertainty is propagated through process models and impacts modeled fuel costs. The challenge in measuring FIS is obtaining an accurate measurement of insoluble matter in the pretreated materials, while appropriately accounting for all biomass derived components. Three methods were tested to improve this measurement. One used physical separation of liquid and solid phases, and two utilized direct determination of dry matter content in two fractions. We offer a comparison of drying methods. Lastly, our results show utilizing a microwave dryer to directly determine dry matter content is the optimal method for determining FIS, based on the low time requirements and the method optimization done using model slurries.},
doi = {10.1016/j.biombioe.2016.05.027},
journal = {Biomass and Bioenergy},
number = C,
volume = 91,
place = {United Kingdom},
year = {2016},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1016/j.biombioe.2016.05.027

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