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Title: Characterization of white poplar and eucalyptus after ionic liquid pretreatment as a function of biomass loading using X-ray diffraction and small angle neutron scattering

Journal Article · · Bioresource Technology
 [1];  [1];  [2];  [3];  [4];  [5]
  1. Beijing Univ. of Chemical Technology (China)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Sandia National Lab. (SNL-CA), Livermore, CA (United States); Joint BioEnergy Inst. (JBEI), Emeryville, CA (United States)
  4. Joint BioEnergy Inst. (JBEI), Emeryville, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  5. Beijing Univ. of Chemical Technology (China); Joint BioEnergy Inst. (JBEI), Emeryville, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
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A systematic study was done to understand interactions among biomass loading during ionic liquid (IL) pretreatment, biomass type and biomass structures. White poplar and eucalyptus samples were pretreated using 1-ethyl-3-methylimidazolium acetate (EmimOAc) at 110 °C for 3 h at biomass loadings of 5, 10, 15, 20 and 25 wt%. All of the samples were chemically characterized and tested for enzymatic hydrolysis. Physical structures including biomass crystallinity and porosity were measured by X-ray diffraction (XRD) and small angle neutron scattering (SANS), respectively. SANS detected pores of radii ranging from ~25 to 625 Å, enabling assessment of contributions of pores with different sizes to increased porosity after pretreatment. Contrasting dependences of sugar conversion on white poplar and eucalyptus as a function of biomass loading were observed and cellulose crystalline structure was found to play an important role.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1393101
Alternate ID(s):
OSTI ID: 1412603
Journal Information:
Bioresource Technology, Vol. 232, Issue C; ISSN 0960-8524
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 19 works
Citation information provided by
Web of Science

References (18)

Transition of Cellulose Crystalline Structure and Surface Morphology of Biomass as a Function of Ionic Liquid Pretreatment and Its Relation to Enzymatic Hydrolysis journal April 2011
Theory, practice and prospects of X-ray and neutron scattering for lignocellulosic biomass characterization: towards understanding biomass pretreatment journal January 2015
Impact of high biomass loading on ionic liquid pretreatment journal January 2013
Continuous pretreatment of sugarcane bagasse at high loading in an ionic liquid using a twin-screw extruder journal January 2013
Use of Lignin Extracted from Different Plant Sources as Standards in the Spectrophotometric Acetyl Bromide Lignin Method journal April 2011
Plant Cell Walls: Figure 1. journal October 2010
Scale-up and evaluation of high solid ionic liquid pretreatment and enzymatic hydrolysis of switchgrass journal January 2013
Influence of anti-solvents on lignin fractionation of eucalyptus globulus via green solvent system pretreatment journal May 2016
High selective delignification using oxidative ionic liquid pretreatment at mild conditions for efficient enzymatic hydrolysis of lignocellulose journal August 2016
Optimization by response surface methodology of processing conditions for the ionic liquid pretreatment of energy cane bagasse: Optimization by RSM of the IL pretreatment of energy cane bagasse journal August 2013
Ionic liquid pretreatment of biomass for sugars production: Driving factors with a plausible mechanism for higher enzymatic digestibility journal September 2016
A USANS/SANS Study of the Accessibility of Pores in the Barnett Shale to Methane and Water journal February 2013
Structural features affecting the enzymatic digestibility of pine wood pretreated with ionic liquids: Understanding Digestibility of IL Pretreated Pine journal September 2015
Facile pretreatment of lignocellulosic biomass at high loadings in room temperature ionic liquids journal August 2011
Transforming biomass conversion with ionic liquids: process intensification and the development of a high-gravity, one-pot process for the production of cellulosic ethanol journal January 2016
From cellulose fibrils to single chains: understanding cellulose dissolution in ionic liquids journal January 2015
Understanding changes in cellulose crystalline structure of lignocellulosic biomass during ionic liquid pretreatment by XRD journal January 2014
A comparative study of enzymatic hydrolysis and thermal degradation of corn stover: understanding biomass pretreatment journal January 2015

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Rhizobacteria Mediate the Phytotoxicity of a Range of Biorefinery‐Relevant Compounds journal July 2019

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Related Subjects

59 BASIC BIOLOGICAL SCIENCES
Ionic liquid pretreatment
SANS
XRD
Biomass loading
Porosity