Impact of Hot-Water Extraction on Acetone-Water Oxygen Delignification of Paulownia Spp. and Lignin Recovery

A hardwood-based biorefinery process starting with hot-water extraction (HWE) is recommended in order to remove most of the hemicelluloses/xylans before further processing. HWE may be followed by delignification in acetone/water in the presence of oxygen (AWO) for the production of cellulose and lignin. In this study, the HWE-AWO sequence was evaluated for its effectiveness at removing lignin from the fast-growing species Paulownia tomentosa (PT) and Paulownia elongata (PE), in comparison with the reference species, sugar maple ( Acer saccharum , SM). HWE might lead to a remarkable increase in lignin accessibility, and as a result, a greater AWO delignification degree was observed for extracted PT, PE, and SM than for unextracted ones. Organosolv lignin was recovered from the spent liquor of AWO delignification of PT with/without prior HWE and characterized to evaluate the benefits of HWE on the lignin structure and purity. The lignin recovered from the spent liquor of HWE-AWO sequence is of higher purity and lighter color than that recovered from the AWO spent liquor. These properties along with low sulfur content are desirable for lignin high-value applications.

[1]  Derek B. Corbett,et al.  Comparative Analysis of Milled Wood Lignins (MWLs) Isolated from Sugar Maple (SM) and Hot-Water Extracted Sugar Maple (ESM) , 2014 .

[2]  G. Selling,et al.  Physical and mechanical properties of extruded poly(lactic acid)-based Paulownia elongata biocomposites , 2013 .

[3]  T. Volk,et al.  Yield and Woody Biomass Traits of Novel Shrub Willow Hybrids at Two Contrasting Sites , 2013, BioEnergy Research.

[4]  Haile Ma,et al.  Biorefinery with Water , 2012 .

[5]  J. Wen,et al.  Unveiling the Structural Heterogeneity of Bamboo Lignin by In Situ HSQC NMR Technique , 2012, BioEnergy Research.

[6]  T. Amidon,et al.  Evaluation of Different Sulfur-Free Delignification Methods for Hot-Water Extracted Hardwood , 2012 .

[7]  P. Tsekova,et al.  KINETIC STUDY OF THE ENZYME CONVERSION OF STEAM EXPLODED PAULOWNIA TOMENTOSA TO GLUCOSE , 2011 .

[8]  Thomas E. Amidon,et al.  Commercializing Biorefinery Technology: A Case for the Multi-Product Pathway to a Viable Biorefinery , 2011 .

[9]  F. López,et al.  Neural fuzzy model applied to autohydrolysis of Paulownia trihybrid , 2011 .

[10]  J. Rencoret,et al.  Selective lignin and polysaccharide removal in natural fungal decay of wood as evidenced by in situ structural analyses. , 2011, Environmental microbiology.

[11]  M. Akyildiz,et al.  Some technological properties and uses of paulownia (Paulownia tomentosa Steud.) wood. , 2010, Journal of environmental biology.

[12]  T. Amidon,et al.  Strength Properties of Kraft Pulp Produced from Hot-Water Extracted Woodchips Within the Biorefinery , 2010 .

[13]  J. Ralph,et al.  Solution-state 2D NMR of ball-milled plant cell wall gels in DMSO-d(6)/pyridine-d(5). , 2010, Organic & biomolecular chemistry.

[14]  B. Goodfellow,et al.  Detection of muconic acid type structures in oxidised lignins using 2D NMR spectroscopy 10th EWLP, Stockholm, Sweden, August 25–28, 2008 , 2009 .

[15]  Ulrike W Tschirner,et al.  Pre-extraction of hemicelluloses and subsequent kraft pulping Part II: Acid- and autohydrolysis , 2009, September 2009.

[16]  J. Rencoret,et al.  Isolation and structural characterization of the milled-wood lignin from Paulownia fortunei wood. , 2009 .

[17]  A. Spark,et al.  Lignin content versus syringyl to guaiacyl ratio amongst poplars. , 2009, Bioresource technology.

[18]  Herbert Sixta,et al.  Effect of autohydrolysis of Eucalyptus globulus wood on lignin structure. Part 1: Comparison of different lignin fractions formed during water prehydrolysis , 2008 .

[19]  C. Wood,et al.  Biorefinery: Conversion of Woody Biomass to Chemicals, Energy and Materials , 2008 .

[20]  Y. Bae,et al.  Structure elucidation of phenylethanoid glycosides from Paulownia tomentosa Steud. var. tomentosa wood , 2008 .

[21]  M. Díaz,et al.  New perspectives for Paulownia fortunei L. valorisation of the autohydrolysis and pulping processes. , 2008, Bioresource technology.

[22]  D. Evtuguin,et al.  Structural characterization of the acetylated heteroxylan from the natural hybrid Paulownia elongata/Paulownia fortunei. , 2008, Carbohydrate research.

[23]  E. Pye.  Industrial Lignin Production and Applications , 2008 .

[24]  A. D. Krikorian.  Paulownia in China: Cultivation and Utilization , 1988, Economic Botany.

[25]  Y. Ni,et al.  Characterization and evaluation of Paulownia elongota as a raw material for paper production , 2008 .

[26]  David K. Johnson,et al.  Top Value-Added Chemicals from Biomass - Volume II—Results of Screening for Potential Candidates from Biorefinery Lignin , 2007 .

[27]  Mark Laser,et al.  Fractionating recalcitrant lignocellulose at modest reaction conditions. , 2007, Biotechnology and bioengineering.

[28]  Gary M. Scott,et al.  Opportunities for hardwood hemicellulose in biodegradable polymer blends , 2007 .

[29]  R. Reiner,et al.  Composition of the organic components in polyxometalate (POM) liquors from kraft pulp bleaching , 2007 .

[30]  A. V. Laar,et al.  Growth And Yield , 2007 .

[31]  H. Sixta,et al.  A new and facile method for isolation of lignin from wood based on complete wood dissolution , 2007 .

[32]  S. Hiziroglu,et al.  Some of the properties of particleboard made from paulownia , 2005, Journal of Wood Science.

[33]  B. Bergmann.  Five years of Paulownia field trials in North Carolina , 2003, New Forests.

[34]  T. Kishimoto,et al.  Isolation of lignin–carbohydrate bonds in wood. Model experiments and preliminary application to pine wood , 2004, Journal of Wood Science.

[35]  Wolfgang G. Glasser,et al.  Recent Industrial Applications of Lignin: A Sustainable Alternative to Nonrenewable Materials , 2002 .

[36]  Bak-Kwang Kim,et al.  Antibacterial phenylpropanoid glycosides fromPaulownia tomentosa Steud , 1994, Archives of pharmacal research.

[37]  J. Flynn,et al.  A Guide to Useful Woods of the World , 1994 .

[38]  M. Zarubin,et al.  Delignification by oxygen in acetone-water media , 1989 .

[39]  A. Johansson,et al.  Organosolv pulping — methods and pulp properties , 1987 .

[40]  Z. H. Zhu,et al.  Paulownia in China: cultivation and utilization. , 1986 .

[41]  S. B. Carpenter,et al.  Specific Gravity, Fiber Length, and Extractive Content of Young Paulownia , 1985 .

[42]  E. Sjöström,et al.  Wood Chemistry: Fundamentals and Applications , 1981 .

[43]  S. B. Carpenter,et al.  Paulownia—A Crop Tree for Wood Products and Reclamation of Surface-Mined Land , 1980 .

[44]  J. Czerkawski.  The determination of lignin , 1967, British Journal of Nutrition.