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27 results found
Investigating the suitability of hybrid sweetgum (Liquidambar formosana x styraciflua) as a biomass feedstock for Western Gulf forest industries requires information on stand yields. Using data from 2-year-old (1-0 seedling stock) hybrid sweetgum trees, equations were developed to…
Author(s): T. Eric McConnell, Curtis L. VanderSchaaf, Robert Hane, Joshua P. Adams, Michael Blazier
Keywords: sweetgum, Liquidambar formosana x styraciflua, hybrid, biomass, feedstock, stem volume, model
Source: e–Gen. Tech. Rep. SRS–253. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station
Year: 2020
Lodgepole pine from forest thinnings is a potential feedstock for ethanol production. In this study, lodgepole pine was converted to ethanol with a yield of 276 L per metric ton of wood or 72% of theoretical yield. The lodgepole pine chips were directly subjected to sulfite pretreatment to overcome…
Author(s): Junyong Zhu, Wenyuan Zhu, Patricia OBryan, Bruce S. Dien, Shen Tian, Roland Gleisner, X.J. Pan
Keywords: Cellulosic ethanol, SPORL, fermentation, saccharification, woody biomass, pretreatment, ethanol yield, alcohol, fuelwood, biomass energy, utilization, biotechnology, feedstock, energy consumption, sugars, lignocellulose, biodegradation, hemicellulose, cellulose, hydrolysis, lodgepole pine, sulfuric acid, enzymes, industrial applications, wood chips, yeast fungi, fungi, wood-decaying fungi, Saccharomyces cerevisiae, biomass fuel, ethanol, bioconversion, biorefining, wood extractives, chemical utilization, chips, sodium bisulfite
Source: Applied microbiology and biotechnology. Vol. 86 (2010): p. 1355-1365.
Year: 2010
This study investigated the effects of chemical pretreatment and disk-milling conditions on energy consumption for size-reduction and the efficiency of enzymatic cellulose saccharification of a softwood. Lodgepole pine wood chips produced from thinnings of a 100-year-old unmanaged forest were…
Author(s): W. Zhu, Junyong Zhu, Roland Gleisner, X.J. Pan
Keywords: Size reduction, disk-milling, disk refining, forest biomass, woody biomass, enzymatic hydrolysis, saccharification, SPORL, fuelwood, biomass energy, biomass, utilization, biotechnology, energy consumption, pretreatment, sugars, cellulose, hydrolysis, lodgepole pine, sulfuric acid, enzymes, biotechnology, industrial applications, wood chips, lignocellulose, biodegradation, glucose, feedstock, hemicellulose, biomass fuel, bioconversion, biorefining, wood extractives, chemical utilization, chips
Source: Bioresource technology. Vol. 101 (2010): p. 2782-2792.
Year: 2010
This review presents a comprehensive discussion of the key technical issues in woody biomass pretreatment: barriers to efficient cellulose saccharification, pretreatment energy consumption, in particular energy consumed for wood-size reduction, and criteria to evaluate the performance of a…
Author(s): Junyong Zhu, X.J. Pan
Keywords: Pretreatment, woody biomass, forest biomass, enzymatic hydrolysis, saccharification, cellulosic ethanol, size reduction, alcohol, fuelwood, biomass energy, biomass, utilization, biotechnology, energy consumption, sugars, lignocellulose, biodegradation, cellulose, hydrolysis, feedstock, lignin, enzymes, industrial applications, SPORL, biomass fuel, ethanol, bioconversion, biorefining, wood extractives, chemical utilization, review article
Source: Bioresource technology. Vol. 101 (2010): p. 4992-5002.
Year: 2010
A resource assessment and biorefinery siting optimization model was developed and implemented to assess potential biofuel supply across the Western United States from agricultural, forest, urban, and energy crop biomass. Spatial information including feedstock resources, existing and potential…
Author(s): Nathan Parker, Peter Tittmann, Quinn Hart, Richard Nelson, Ken Skog, Anneliese Schmidt, Edward Gray, Bryan Jenkins
Keywords: Forest products industry, West (U.S.), energy industries, forest biomass, utilization, sustainable forestry, renewable natural resources, biomass utilization, environmental conservation, biomass energy, fuelwood, fuelwood industry, economic aspects, forest products, mathematical optimization, supply, demand, technological innovations, feedstock, recycling, energy crops, sustainable agriculture, agricultural wastes, geographic information systems, marketing, forest biomass, market surveys, waste products, industrial location, models, industrial sites, forest resources, renewable energy sources, wood as fuel, biomass fuel, renewable natural resources, biorefining, mapping, biofuel, GIS, supply chain, supply assessment
Source: Biomass and bioenergy. Vol. 34, no. 11 (Nov. 2010): p. 1597-1607.
Year: 2010
The cellulosic feedstocks (see chapter 2) needed to produce 20 billion gallons per year (BGY) of second-generation and other renewable fuels can come from a wide variety of cropland and forestland sources, including imports. The impact of producing these biofuels on U.S. agriculture and forestry…
Author(s): Robert D. Perlack, Bryce J. Stokes, John Ferrell, Mary Bohman, Kenneth E. Skog, Dennis P. Dykstra, Patricia K. Lebow, Patrick D. Miles
Keywords: Alcohol, cellulose, biomass energy, biomass, utilization, renewable energy sources, synthetic fuels, feedstock, renewable natural resources, market surveys, forest biomass, forest products, marketing, economic aspects, forest products industry, agricultural resources, POLYSYS, energy crops, ethanol, biomass fuel, bioconversion, renewable energy resources, forest resources
Source: Increasing feedstock production for biofuels [electronic resource] : economic drivers, environmental implications, and the role of research. [Washington, D.C.] : Biomass Research & Development Initiative, 2008: pages 63-80.
Year: 2008
In scale-up, the potential of ethanol production by dilute sulfuric acid pretreatment using corncob was investigated. Pretreatments were performed at 170 °C with various acid concentrations ranging from 0% to 1.656% based on oven dry weight. Following pretreatment, pretreated biomass yield ranged…
Author(s): Jae-Won Lee, J.Y. Zhu, Danilo Scordia, Thomas W. Jeffries
Keywords: Pretreatment, enzymatic hydrolysis, corncobs, ethanol, fermentation, corn residues, biomass utilization, biomass energy, fungi, biotechnology, yeast fungi, enzymes, industrial applications, hydrolysis, Pichia stipitis, glucose, chemical reactions, sugars, sulfuric acid, feedstock, alcohol, biomass fuel, biorefining, bioconversion, corn as fuel, xylan, decay fungi, acid hydrolysis, xylose, hydrolysates
Source: Applied biochemistry and biotechnology. Vol. 165, nos. 3/4 (Oct. 2011): p. 814-822.
Year: 2011
This paper discusses a property associated with plant biomass recalcitrance to enzyme and microbial deconstructions in sugar production from cellulose and hemicelluloses. The hemicelluloses are more readily hydrolyzed to sugars than is cellulose. As a result, optimization to maximize individual…
Author(s): J.Y. Zhu, Steve P. Verrill, Hao Liu, Victoria L. Herian, Xuejun Pan, Donald L. Rockwood
Keywords: Biomass recalcitrance, pretreatment, optimization, sugar recovery, enzymatic hydrolysis, saccharification, sugars, cellulose, biomass, pretreatment, hydrolysis, lignocellulose, biodegradation, enzymes, biotechnology, industrial applications, lignin, hemicellulose, Eucalyptus, feedstock, glucose, mathematical optimization, Eucalyptus grandis, ethanol, fuel, wood, biomass energy, SPORL, bioconversion, biorefining, chemical utilization, wood extractives, cellulosic materials, xylose, polydispersity, alcohol, biomass fuel
Source: Bioenergy research. Vol. 4, no. 3 (Sept. 2011): p. 201-210.
Year: 2011
Pretreatment of lignocellulosic biomass by Ν-methylmorpholine-Ν-oxide (NMMO), a solvent used in the textile industry to dissolve cellulose for production of regenerated cellulose fibers, was observed to enhance significantly enzymatic saccharification and fermentation. The enhancement was…
Author(s): Ye Liu, Qixin Zhong, Siqun Wang, Zhiyong Cai
Keywords: Biomass energy, ethanol, biomass, utilization, pretreatment, hydrolysis, lignocellulose, biotechnology, enzymes, industrial applications, fermentation, cellulose, feedstock, pine, wood flour, solvents, chemical composition, surface chemistry, glucans, sugars, crystalline cellulose, cellulosic materials, &Nu, -methylmorpholine-&Nu, -oxide, NMMO, biomass fuel, saccharification, bioconversion, biorefining, alcohol, chemical utilization, biofuels, wood extractives, N-Methylmorpholine-N-oxide
Source: Biomacromolecules. Vol. 12, no. 7 (July 11, 2011): p. 2626-2632.
Year: 2011
Enzymatic hydrolysis of lignocellulosic biomass in a high shear environment was examined. The conversion of cellulose to glucose in samples mixed in a torque rheometer producing shear flows similar to those found in twin screw extruders was greater than that of unmixed samples. In addition, there…
Author(s): Joseph R. Samaniuk, C. Tim Scott, Thatcher W. Root, Daniel J. Klingenberg
Keywords: Suspensions, pulping, cellulose fibers, biomass energy, biotechnology, feedstock, glucose, lignocellulose, biodegradation, hydrolysis, enzymes, industrial applications, cellulose, ethanol, biomass, cellulase, corn stover, corn stover as fuel, corn residues, chemical reactions, rheometers, shear, rheology, cotton, crop residues, agricultural wastes, lignocellulosic biomass, enzymatic hydrolysis, mixing, viscosity, fibers, plant fibers, biomass fuel, bioconversion, biorefining, particle size, corn as fuel, alcohol, acid hydrolysis
Source: Bioresource technology. Vol. 102, no. 6 (Mar. 2011): p. 4489-4494.
Year: 2011