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The characterization and utilization of lignin from pretreated lignocellulosic substrates : final report

https://library.fpinnovations.ca/en/permalink/fpipub2286
Author
Sutcliffe, Roger
Date
August 1988
Edition
38840
Material Type
Research report
Field
Bioproducts
PDF
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Author
Sutcliffe, Roger
Date
August 1988
Edition
38840
Material Type
Research report
Physical Description
1 v.
Sector
Wood Products
Field
Bioproducts
Research Area
Biomass Conversion
Subject
Waste utilization
Utilization
Tires
Steam pretreatment
Steam
Solvents
Pretreatment
Lignin
Biomass
Binders
Aspen
Adhesives
Series Number
DSS contract file no. O2SQ.23216-4-6364
Location
Ottawa, Ontario
Language
English
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The characterization and utilization of lignin from pretreated lignocellulosic substrates : first interim report

https://library.fpinnovations.ca/en/permalink/fpipub2134
Contributor
Forintek Canada Corp.
Date
April 1986
Edition
38671
Material Type
Research report
Field
Bioproducts
PDF
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of the whole conversion process. The lignin obtained from steam pretreatment has been suggested to be of low
Contributor
Forintek Canada Corp.
Date
April 1986
Edition
38671
Material Type
Research report
Physical Description
28 p.
Sector
Wood Products
Field
Bioproducts
Research Area
Biomass Conversion
Subject
Waste utilization
Utilization
Tires
Steam pretreatment
Steam
Solvents
Pretreatment
Lignin
Biomass
Binders
Aspen
Adhesives
Series Number
DSS contract file no. O2SQ.23216-4-6364
Location
Ottawa, Ontario
Language
English
Abstract
The current project was initiated to address the utilization of the lignin component obtained during the bioconversion of aspenwood wastes. This utilization is necessary for the economic viability of the whole conversion process. The lignin obtained from steam pretreatment has been suggested to be of low molecular weight, reactive, and offer great potential as a raw material for utilization. This is in contrast to the lignins from traditional pulping operations. However previous to this work, characterizati- on of lignin separated after steam pretreatment of aspenwood under varying conditions (with and without acidic catalysts), has not been undertaken to substantiate these widely held beliefs. Neither has anyone identified the production of the type of lignin most suitable for various applications. A prerequisite for utilization of this material, therefore, has been to undertake this necessary characterization. A major emphasis of the work during this first year has been placed on the establishment of the analytical capability required to achieve the above goals. Following discussions with other researchers, such as Glasser and Lewis (Virginia Tech.), Chum (SERI), etc. we are confident the analytical methodology we have in place for lignin characterization and the assessment of planned modification reactions is as good as any other laboratory in the world.
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The characterization and utilization of lignin from pretreated lignocellulosic substrates : second interim report

https://library.fpinnovations.ca/en/permalink/fpipub2190
Author
Sutcliffe, Roger
Date
May 1987
Edition
38734
Material Type
Research report
Field
Bioproducts
PDF
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. The lignin obtained from steam pretreatment has been suggested to be of low molecular weight, reactive
Author
Sutcliffe, Roger
Date
May 1987
Edition
38734
Material Type
Research report
Physical Description
22 p.
Sector
Wood Products
Field
Bioproducts
Research Area
Biomass Conversion
Subject
Waste utilization
Utilization
Tires
Steam pretreatment
Steam
Solvents
Pretreatment
Lignin
Biomass
Binders
Aspen
Adhesives
Series Number
DSS contract file no. O2SQ.23216-4-6364
Location
Ottawa, Ontario
Language
English
PDF
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Chemistry of steam stabilization

https://library.fpinnovations.ca/en/permalink/fpipub1879
Author
Sutcliffe, Roger
Date
March 1990
Edition
38401
Material Type
Research report
Field
Bioproducts
PDF
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Author
Sutcliffe, Roger
Date
March 1990
Edition
38401
Material Type
Research report
Physical Description
29 p.
Sector
Wood Products
Field
Bioproducts
Research Area
Biomass Conversion
Subject
Waferboards
Treatment
Steam pretreatment
Steam
Stability
Research
Pretreatment
Series Number
CFS project no.37
E-1202
Location
Ottawa, Ontario
Language
English
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Chemistry of steam stabilization: preliminary analysis of steam pressed waferboard

https://library.fpinnovations.ca/en/permalink/fpipub1802
Author
Brownell, Henry H.
Date
March 1989
Edition
38320
Material Type
Research report
Field
Wood Manufacturing & Digitalization
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Author
Brownell, Henry H.
Date
March 1989
Edition
38320
Material Type
Research report
Physical Description
19 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Waferboards
Treatment
Steam pretreatment
Steam
Stability
Research
Pretreatment
Series Number
CFS project no.30a
Project no.3812M213
E-1043
Location
Ottawa, Ontario
Language
English
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Comparative costs of pretreatment processes in bioconversion

https://library.fpinnovations.ca/en/permalink/fpipub2056
Author
Ung, R.
Date
November 1986
Edition
38590
Material Type
Research report
Field
Bioproducts
PDF
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) U rt l+ c o s t ̂$ /k g o f g lu c o s e } FIGURE 2. COST COMPONENTS OF PRETREATMENT
Author
Ung, R.
Date
November 1986
Edition
38590
Material Type
Research report
Physical Description
1 v.
Sector
Wood Products
Field
Bioproducts
Research Area
Biomass Conversion
Subject
Pretreatment
Economics
Costs
Bioconversion
Location
Ottawa, Ontario
Language
English
Abstract
Economic evaluations of bioconversion processes for producing sugars from lignocellulosic biomass can assist in the indentification of areas for investigation, and appraisal of the potential of the technology. The Forintek economic analysis of comparative cost serves that purpose. A similar case is the Monte Carlo simulation (Douglas, 1986) used by the Solar Energy Research Institute (SERI). The Forintek analysis uses a Lotus spreasheet to eliminate the less profitable processes, leaving the more efficient processes for further analysis. In particular, comparing the cost of various factors such as temperature, duration, addition of catalysts and post steam pretreatment. The analysis will guide subsequent work of model building. The spreadsheet is used as a record of data on technical and economic characteristics of processes, and also serves for documentation, and communication.
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Effect of selected process parameters on steam-pressed waferboard

https://library.fpinnovations.ca/en/permalink/fpipub38336
Author
Hsu, W.H.E.
Date
April 1989
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Hsu, W.H.E.
Date
April 1989
Material Type
Research report
Physical Description
23 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Waferboards
Steam pretreatment
Steam
Pretreatment
Pressing
Series Number
3843M406
E-1080
Location
Ottawa, Ontario
Language
English
Abstract
Waferboard - Steam pretreatment
Steam pressing
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Morphological evaluation of pretreated lignocellulosic materials

https://library.fpinnovations.ca/en/permalink/fpipub38849
Author
Poon, H.N.
Saddler, J.N.
Date
June 1984
Material Type
Research report
Field
Bioproducts
PDF
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Author
Poon, H.N.
Saddler, J.N.
Date
June 1984
Material Type
Research report
Physical Description
66 p.
Sector
Wood Products
Field
Bioproducts
Research Area
Biomass Conversion
Subject
Pretreatment
Degradation
Byproducts
Biomass
Cellulase
Cellulosic Biomass
Waste products
Fuel
Location
Ottawa, Ontario
Language
English
Abstract
Scanning electron microscopic observations of treated and untreated wood residues of poplar and eucalyptus were carried out. We hoped to evaluate the different methods of treatment and study the effect that different conditions such as temperature, time, pressure and chemicals have on the physical modification of the wood residues. It was observed that wood samples which had been treated by continuous acid hydrolysis in a Cascade reactor at temperatures below 243C and discharge pressure below 4000 psi had little effect on the wood structure. At a moderate discharge pressure (2975 to 2500 psi), the degree of wood disruption increased with the increase in reactor temperature; thus more of the wood tissue was reduced to wood fibers and fiber bundles at 223C than at 208C. Although wood samples retained in the ractor for shorter times than 100 sec showed insignificant morphological changes, longer retention times may increase the outflow of lignin from the cell wall layers. Tetrahydrofluran was shown to remove the lignin deposits in the treated wood. Wood samples discharged from the reactor and subsequently washed with tetrahydrofluran showed clean fiber surfaces and separation of the fibers as fault lines developed among the fiber bundles. The wood samples of E. saliqua were more resistant to pretreament as compared to the samples from poplar wood. The process of liquefaction was shown to effectively alter the wood structure of poplar. The poplar wood chips which were treated at 320C for 5min followed by discharging at 520 psi contained shattered tissue fragments and associated spheres. Cellulose microfibrils however were not found in these treated wood samples.
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Pretreatment methods for enhancing conversion of lignocellulosic material to liquid fuel : interim report

https://library.fpinnovations.ca/en/permalink/fpipub38768
Contributor
Forintek Canada Corp.
Date
October 1983
Material Type
Research report
Field
Bioproducts
PDF
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PRETREATMENT METHODS FOR ENHANCING CONVERSION MATERIAL TO LIQUID FUEL ENFOR C-299 DSS FILE
Contributor
Forintek Canada Corp.
Date
October 1983
Material Type
Research report
Physical Description
107 p.
Sector
Wood Products
Field
Bioproducts
Research Area
Biomass Conversion
Subject
Conversion
Pretreatment
Lignocellulosic Material
Liquid fuel
Location
Ottawa, Ontario
Language
English
PDF
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Quality improvement of preservative treated softwood

https://library.fpinnovations.ca/en/permalink/fpipub41519
Author
Keith, C.T.
Unligil, H.H.
Desai, Roman L.
Ralph, C.D.
Date
March 1984
Material Type
Research report
Field
Sustainable Construction
Author
Keith, C.T.
Unligil, H.H.
Desai, Roman L.
Ralph, C.D.
Date
March 1984
Material Type
Research report
Physical Description
27 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Treatment
Pinus
Spruce
Softwoods
Quality control
Qualitative analysis
Pretreatment
Preservatives penetration
Preservatives
Preservation
Penetration
Series Number
E-890
Location
Ottawa, Ontario
Language
English
Abstract
Preservatives - Penetration
Preservation - Pretreatment
Spruce - Preservation
Jack Pine - Preservation
Softwoods - Preservative Treatment - Quality
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14 records – page 1 of 2.