Sources of Biomass Feedstock Variability and the Potential Impact on Biofuels Production

BioEnergy Research - Tập 9 Số 1 - Trang 1-14 - 2016
C. Luke Williams1, Tyler Westover1, Rachel Emerson1, Jaya Shankar Tumuluru1, Chenlin Li1
1Biofuels and Renewable Energy Technology Department, Idaho National Laboratory, Idaho Falls, USA

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Tài liệu tham khảo

Perlack RD, Wright LL, Turhollow AF, Graham RL, Stokes BJ, Erbach DC (2005) Biomass as feedstock for a bioenergy and bioproducts industry: the technical feasibility of a billion-ton annual supply. DTIC Document. ORNL/TM-2005/66

Perlack RD, Eaton LM, Turhollow Jr AF, Langholtz MH, Brandt CC, Downing ME, Graham RL, Wright LL, Kavkewitz JM, Shamey AM (2011) US billion-ton update: biomass supply for a bioenergy and bioproducts industry. ORNL/TM-2011/224

Humbird D, Davis R, Tao L, Kinchin C, Hsu D, Aden A, Schoen P, Lukas J, Olthof B, Worley M (2011) Process design and economics for biochemical conversion of lignocellulosic biomass to ethanol. National Renewable Energy Laboratory Technical Report NREL. TP-5100-47764,

Poet-DSM (2013) POET and DSM to make advanced biofuels a reality by 2013. http://poet-dsm.com/news/poet-and-dsm.aspx . Accessed 03/30/2015

Abengoa (2014) Abengoa celebrates grand opening of its first commercial-scale next generation biofuels plant. http://www.abengoa.com/web/en/noticias_y_publicaciones/noticias/historico/2014/10_octubre/abg_20141017.html . Accessed 03-11-2015

DuPont (2011) DuPont Industrial Biosciences announces new leader and name for cellulosic ethanol business. http://www2.dupont.com/BioFuel/en_US/whats_new/DuPont_Cellulosic_Ethanol_111511.html . Accessed 03-11-2015

BETO (2014) Bioenergy Technologies Office Multi-Year Program Plan: November 2014 Update. http://www.energy.gov/eere/bioenergy/downloads/bioenergy-technologies-office-multi-year-program-plan-november-2014-update . Accessed June 30 2015

Taylor S (2015) High Tonnage Forest Biomass Production Systems from Southern Pine Energy Plantations. http://www.energy.gov/eere/bioenergy/downloads/2015-peer-review-presentations-terrestrial-feedstocks . Accessed June 30 2015

Schmidt LD, Dauenhauer PJ (2007) Chemical engineering: hybrid routes to biofuels. Nature 447(7147):914–915

Sanderson K (2006) US biofuels: a field in ferment. Nature 444(7120):673–676

Ragauskas AJ, Williams CK, Davison BH, Britovsek G, Cairney J, Eckert CA, Frederick WJ Jr, Hallett JP, Leak DJ, Liotta CL, Mielenz JR, Murphy R, Templer R, Tschaplinski T (2006) The path forward for biofuels and biomaterials. Science 311(5760):484–489. doi: 10.1126/science.1114736

Huber GW, Iborra S, Corma A (2006) Synthesis of transportation fuels from biomass: chemistry, catalysts, and engineering. Chem Rev 106(9):4044–4098

Kenney KL, Smith WA, Gresham GL, Westover TL (2013) Understanding biomass feedstock variability. Biofuels 4(1):111–127

Tumuluru JS, Hess JR, Boardman RD, Wright CT, Westover TL (2012) Formulation, pretreatment, and densification options to improve biomass specifications for co-firing high percentages with coal. Ind Biotechnol 8(3):113–132. doi: 10.1089/ind.2012.0004

Darr MJ, Shah A (2012) Biomass storage: an update on industrial solutions for baled biomass feedstocks. Biofuels 3(3):321–332. doi: 10.4155/bfs.12.23

Brownell HH, Yu EKC, Saddler JN (1986) Steam-explosion pretreatment of wood: effect of chip size, acid, moisture content and pressure drop. Biotechnol Bioeng 28(6):792–801. doi: 10.1002/bit.260280604

Akhtar J, Amin NAS (2011) A review on process conditions for optimum bio-oil yield in hydrothermal liquefaction of biomass. Renew Sust Energ Rev 15(3):1615–1624. doi: 10.1016/j.rser.2010.11.054

Peterson AA, Vogel F, Lachance RP, Fröling M, Antal JMJ, Tester JW (2008) Thermochemical biofuel production in hydrothermal media: a review of sub- and supercritical water technologies. Energy Environ Sci 1(1):32. doi: 10.1039/b810100k

Bridgwater A, Meier D, Radlein D (1999) An overview of fast pyrolysis of biomass. Org Geochem 30(12):1479–1493

Carpenter D, Westover TL, Czernik S, Jablonski W (2014) Biomass feedstocks for renewable fuel production: a review of the impacts of feedstock and pretreatment on the yield and product distribution of fast pyrolysis bio-oils and vapors. Green Chem 16(2):384. doi: 10.1039/c3gc41631c

Jenkins B, Baxter L, Miles T Jr, Miles T (1998) Combustion properties of biomass. Fuel Process Technol 54(1):17–46

Demirbas A (2004) Combustion characteristics of different biomass fuels. Prog Energy Combust Sci 30(2):219–230. doi: 10.1016/j.pecs.2003.10.004

Dibble CJ, Shatova TA, Jorgenson JL, Stickel JJ (2011) Particle morphology characterization and manipulation in biomass slurries and the effect on rheological properties and enzymatic conversion. Biotechnol Prog 27(6):1751–1759. doi: 10.1002/btpr.669

Van Walsum GP, Allen S, Spencer M, Laser M, Antal M Jr, Lynd L (1996) Conversion of lignocellulosics pretreated with liquid hot water to ethanol. In: Wyman C, Davison B (eds) Seventeenth Symposium on Biotechnology for Fuels and Chemicals, vol 57/58. Humana Press, ABAB Symposium, pp 157–170. doi: 10.1007/978-1-4612-0223-3_14

Lynd LR (1996) Overview and evaluation of fuel ethanol from cellulosic biomass: technology, economics, the environment, and policy. Annu Rev Energy Environ 21(1):403–465

Kiran Sree N, Sridhar M, Venkateswar Rao L, Pandey A (1999) Ethanol production in solid substrate fermentation using thermotolerant yeast. Process Biochem 34(2):115–119

Elliott DC, Biller P, Ross AB, Schmidt AJ, Jones SB (2015) Hydrothermal liquefaction of biomass: developments from batch to continuous process. Bioresour Technol 178C:147–156. doi: 10.1016/j.biortech.2014.09.132

Jazrawi C, Biller P, Ross AB, Montoya A, Maschmeyer T, Haynes BS (2013) Pilot plant testing of continuous hydrothermal liquefaction of microalgae. Algal Res 2(3):268–277. doi: 10.1016/j.algal.2013.04.006

Zhang B, von Keitz M, Valentas K (2009) Thermochemical liquefaction of high-diversity grassland perennials. J Anal Appl Pyrolysis 84(1):18–24. doi: 10.1016/j.jaap.2008.09.005

Demirbas A (2004) Effects of temperature and particle size on bio-char yield from pyrolysis of agricultural residues. J Anal Appl Pyrolysis 72(2):243–248. doi: 10.1016/j.jaap.2004.07.003

Spliethoff H, Hein K (1998) Effect of co-combustion of biomass on emissions in pulverized fuel furnaces. Fuel Process Technol 54(1):189–205

Reza MT, Emerson R, Uddin MH, Gresham G, Coronella CJ (2014) Ash reduction of corn stover by mild hydrothermal preprocessing. Biomass Convers Biorefinery. doi: 10.1007/s13399-014-0122-x

Lacey JA, Aston JE, Westover TL, Cherry RS, Thompson DN (2015) Removal of introduced inorganic content from chipped forest residues via air classification. Fuel 160:265–273

Weiss ND, Farmer JD, Schell DJ (2010) Impact of corn stover composition on hemicellulose conversion during dilute acid pretreatment and enzymatic cellulose digestibility of the pretreated solids. Bioresour Technol 101(2):674–678. doi: 10.1016/j.biortech.2009.08.082

Toor SS, Rosendahl L, Rudolf A (2011) Hydrothermal liquefaction of biomass: a review of subcritical water technologies. Energy 36(5):2328–2342. doi: 10.1016/j.energy.2011.03.013

Fahmi R, Bridgwater AV, Donnison I, Yates N, Jones JM (2008) The effect of lignin and inorganic species in biomass on pyrolysis oil yields, quality and stability. Fuel 87(7):1230–1240. doi: 10.1016/j.fuel.2007.07.026

Jenkins BM, Bakker RR, Wei JB (1996) On the properties of washed straw. Biomass and Bioenergy 10 (4):177–200. doi:http://dx.doi.org/ 10.1016/0961-9534(95)00058-5

Klinke HB, Thomsen AB, Ahring BK (2004) Inhibition of ethanol-producing yeast and bacteria by degradation products produced during pre-treatment of biomass. Appl Microbiol Biotechnol 66(1):10–26. doi: 10.1007/s00253-004-1642-2

Palmqvist E, Hahn-Hägerdal B (2000) Fermentation of lignocellulosic hydrolysates. I: inhibition and detoxification. Bioresour Technol 74(1):17–24. doi: 10.1016/S0960-8524(99)00160-1

Onwudili JA, Nahil MA, Wu C, Williams PT (2014) High temperature pyrolysis of solid products obtained from rapid hydrothermal pre-processing of pinewood sawdust. RSC Ad 4(66):34784. doi: 10.1039/c4ra04761c

Sun Y, Cheng J (2002) Hydrolysis of lignocellulosic materials for ethanol production: a review. Bioresour Technol 83(1):1–11

Bhaskar T, Sera A, Muto A, Sakata Y (2008) Hydrothermal upgrading of wood biomass: influence of the addition of K2CO3 and cellulose/lignin ratio. Fuel 87(10–11):2236–2242. doi: 10.1016/j.fuel.2007.10.018

Kirubakaran V, Sivaramakrishnan V, Nalini R, Sekar T, Premalatha M, Subramanian P (2009) A review on gasification of biomass. Renew Sust Energ Rev 13(1):179–186. doi: 10.1016/j.rser.2007.07.001

Mani S, Tabil LG, Sokhansanj S (2004) Grinding performance and physical properties of wheat and barley straws, corn stover and switchgrass. Biomass Bioenergy 27(4):339–352. doi: 10.1016/j.biombioe.2004.03.007

Adapa P, Tabil L, Schoenau G (2011) Grinding performance and physical properties of non-treated and steam exploded barley, canola, oat and wheat straw. Biomass Bioenergy 35(1):549–561. doi: 10.1016/j.biombioe.2010.10.004

Vassilev SV, Baxter D, Andersen LK, Vassileva CG (2010) An overview of the chemical composition of biomass. Fuel 89(5):913–933. doi: 10.1016/j.fuel.2009.10.022

Vassilev SV, Baxter D, Andersen LK, Vassileva CG (2013) An overview of the composition and application of biomass ash. Part 1. Phase–mineral and chemical composition and classification. Fuel 105:40–76. doi: 10.1016/j.fuel.2012.09.041

Vassilev SV, Baxter D, Andersen LK, Vassileva CG, Morgan TJ (2012) An overview of the organic and inorganic phase composition of biomass. Fuel 94:1–33. doi: 10.1016/j.fuel.2011.09.030

Tao G, Lestander TA, Geladi P, Xiong S (2012) Biomass properties in association with plant species and assortments I: a synthesis based on literature data of energy properties. Renew Sust Energ Rev 16(5):3481–3506. doi: 10.1016/j.rser.2012.02.039

Emerson R, Hoover A, Ray A, Lacey J, Cortez M, Payne C, Karlen D, Birrell S, Laird D, Kallenbach R, Egenolf J, Sousek M, Voigt T (2014) Drought effects on composition and yield for corn stover, mixed grasses, and Miscanthusas bioenergy feedstocks. Biofuels 5(3):275–291. doi: 10.1080/17597269.2014.913904

Graham R, Liu W, Downing M, Noon C, Daly M, Moore A (1997) The effect of location and facility demand on the marginal cost of delivered wood chips from energy crops: a case study of the state of Tennessee. Biomass Bioenergy 13(3):117–123

Graham RL, English BC, Noon CE (2000) A geographic information system-based modeling system for evaluating the cost of delivered energy crop feedstock. Biomass Bioenergy 18(4):309–329

ASTM D3172-13, Standard Practice for Proximate Analysis of Coal and Coke, ASTM International, West Conshohocken, PA, 2013, www.astm.org

ASTM E870-82(2006), Standard Test Methods for Analysis of Wood Fuels, ASTM International, West Conshohocken, PA, 2006, www.astm.org

Hames BR, Thomas SR, Sluiter AD, Roth CJ, Templeton DW (2003) Rapid biomass analysis. In: Biotechnology for Fuels and Chemicals. Springer, pp 5–16

Templeton DW, Sluiter AD, Hayward TK, Hames BR, Thomas SR (2009) Assessing corn stover composition and sources of variability via NIRS. Cellulose 16(4):621–639. doi: 10.1007/s10570-009-9325-x

Sluiter A, Hames B, Ruiz R, Scarlata C, Sluiter J, Templeton D, Crocker D (2008) Determination of structural carbohydrates and lignin in biomass. Laboratory analytical procedure

Templeton DW, Scarlata CJ, Sluiter JB, Wolfrum EJ (2010) Compositional analysis of lignocellulosic feedstocks. 2. Method uncertainties. J Agric Food Chem 58(16):9054–9062. doi: 10.1021/jf100807b

Paulsen AD, Hough BR, Williams CL, Teixeira AR, Schwartz DT, Pfaendtner J, Dauenhauer PJ (2014) Fast pyrolysis of wood for biofuels: spatiotemporally resolved diffuse reflectance in situ spectroscopy of particles. ChemSusChem. doi: 10.1002/cssc.201301056

INL (2015) DOE Biomass Feedstock Library. bioenergy.inl.gov. Accessed 3-10-2015

Gresham G, Emerson R, Hoover A, Miller A, Bauer W, Kenney K (2013) Evolution and development of effective feedstock specifications. Idaho National Laboratory (INL) INL/EXT-14-31510

Towler GP, Oroskar AR, Smith SE (2004) Development of a sustainable liquid fuels infrastructure based on biomass. Environ Prog 23(4):334–341. doi: 10.1002/ep.10052

Adler PR, Sanderson MA, Weimer PJ, Vogel KP (2009) Plant species composition and biofuel yields of conservation grasslands. Ecol Appl 19(8):2202–2209

Duguid KB, Montross MD, Radtke CW, Crofcheck CL, Shearer SA, Hoskinson RL (2007) Screening for sugar and ethanol processing characteristics from anatomical fractions of wheat stover. Biomass Bioenergy 31(8):585–592. doi: 10.1016/j.biombioe.2007.03.002

Duguid KB, Montross MD, Radtke CW, Crofcheck CL, Wendt LM, Shearer SA (2009) Effect of anatomical fractionation on the enzymatic hydrolysis of acid and alkaline pretreated corn stover. Bioresour Technol 100(21):5189–5195. doi: 10.1016/j.biortech.2009.03.082

Wyman CE, Goodman BJ (1993) Biotechnology for production of fuels, chemicals, and materials from biomass. Appl Biochem Biotechnol 39(1):41–59

Dale BE, Allen MS, Laser M, Lynd LR (2009) Protein feeds coproduction in biomass conversion to fuels and chemicals. Biofuels Bioprod Biorefin 3(2):219–230

Lemus R, Brummer EC, Moore KJ, Molstad NE, Burras CL, Barker MF (2002) Biomass yield and quality of 20 switchgrass populations in southern Iowa, USA. Biomass Bioenergy 23(6):433–442

Eisenbies MH, Volk TA, Posselius J, Shi S, Patel A (2014) Quality and variability of commercial-scale short rotation willow biomass harvested using a single-pass cut-and-chip forage harvester. BioEnergy Res. doi: 10.1007/s12155-014-9540-7

Mostajeran A, Rahimi-Eichi V (2009) Effects of drought stress on growth and yield of rice (Oryza sativa L.) cultivars and accumulation of proline and soluble sugars in sheath and blades of their different ages leaves. Am-Eurasian J Agric Environ Sci 5:264–272

Keyvan S (2010) The effects of drought stress on yield, relative water content, proline, soluble carbohydrates and chlorophyll of bread wheat cultivars. J Anim Plant Sci 8:1051–1060

Mitchell PJ, O'Grady AP, Tissue DT, White DA, Ottenschlaeger ML, Pinkard EA (2013) Drought response strategies define the relative contributions of hydraulic dysfunction and carbohydrate depletion during tree mortality. The New phytol 197(3):862–872. doi: 10.1111/nph.12064

Martinez JP, Lutts S, Schanck A, Bajji M, Kinet JM (2004) Is osmotic adjustment required for water stress resistance in the Mediterranean shrub Atriplex halimus L? J Plant Physiol 161(9):1041–1051. doi: 10.1016/j.jplph.2003.12.009

Pordesimo LO, Hames BR, Sokhansanj S, Edens WC (2005) Variation in corn stover composition and energy content with crop maturity. Biomass Bioenergy 28(4):366–374. doi: 10.1016/j.biombioe.2004.09.003

Adler PR, Sanderson MA, Boateng AA, Weimer PJ, Jung H-JG (2006) Biomass yield and biofuel quality of switchgrass harvested in fall or spring. Agron J 98(6):1518. doi: 10.2134/agronj2005.0351

Lewandowski I, Clifton-Brown J, Andersson B, Basch G, Christian D, Jørgensen U, Jones M, Riche A, Schwarz K-U, Tayebi K (2003) Environment and harvest time affects the combustion qualities of genotypes. Agron J 95(5):1274–1280

Lewandowski I, Heinz A (2003) Delayed harvest of miscanthus—influences on biomass quantity and quality and environmental impacts of energy production. Eur J Agron 19(1):45–63

Florine SE, Moore KJ, Fales SL, White TA, Lee Burras C (2006) Yield and composition of herbaceous biomass harvested from naturalized grassland in southern Iowa. Biomass Bioenergy 30(6):522–528. doi: 10.1016/j.biombioe.2005.12.007

Jungers JM, Fargione JE, Sheaffer CC, Wyse DL, Lehman C (2013) Energy potential of biomass from conservation grasslands in Minnesota, USA. PLoS One 8(4):e61209. doi: 10.1371/journal.pone.0061209

Bonner IJ, Smith WA, Einerson JJ, Kenney KL (2014) Impact of harvest equipment on ash variability of baled corn stover biomass for bioenergy. BioEnergy Res 7(3):845–855

Alvira P, Tomas-Pejo E, Ballesteros M, Negro MJ (2010) Pretreatment technologies for an efficient bioethanol production process based on enzymatic hydrolysis: a review. Bioresour Technol 101(13):4851–4861. doi: 10.1016/j.biortech.2009.11.093

Lin Y, Tanaka S (2006) Ethanol fermentation from biomass resources: current state and prospects. Appl Microbiol Biotechnol 69(6):627–642. doi: 10.1007/s00253-005-0229-x

Bothast RJ, Schlicher MA (2005) Biotechnological processes for conversion of corn into ethanol. Appl Microbiol Biotechnol 67(1):19–25. doi: 10.1007/s00253-004-1819-8

Balat M (2011) Production of bioethanol from lignocellulosic materials via the biochemical pathway: a review. Energy Convers Manag 52(2):858–875. doi: 10.1016/j.enconman.2010.08.013

Wyman CE (1994) Ethanol from lignocellulosic biomass: technology, economics, and opportunities. Bioresour Technol 50(1):3–15

Ruth MF, Thomas SR The effect of corn stover composition on ethanol process economics. In: 25th Symposium on Biotechnology for Fuels and Chemicals, 2003. Humana Press Breckenridge, CO

McKendry P (2002) Energy production from biomass (part 1): overview of biomass. Bioresour Technol 83(1):37–46. doi: 10.1016/S0960-8524(01)00118-3

Montross MD, Crofcheck CL (2004) Effect of stover fraction and storage method on glucose production during enzymatic hydrolysis. Bioresour Technol 92(3):269–274. doi: 10.1016/j.biortech.2003.09.007

Kang S, Li X, Fan J, Chang J (2013) Hydrothermal conversion of lignin: a review. Renew Sust Energ Rev 27:546–558. doi: 10.1016/j.rser.2013.07.013

Luterbacher JS, Tester JW, Walker LP (2012) Two-temperature stage biphasic CO2-H2O pretreatment of lignocellulosic biomass at high solid loadings. Biotechnol Bioeng 109(6):1499–1507. doi: 10.1002/bit.24417

Williams CL, Chang C-C, Do P, Nikbin N, Caratzoulas S, Vlachos DG, Lobo RF, Fan W, Dauenhauer PJ (2012) Cycloaddition of biomass-derived furans for catalytic production of renewable p-xylene. ACS Catal 2(6):935–939. doi: 10.1021/cs300011a

Carlson TR, Vispute TP, Huber GW (2008) Green gasoline by catalytic fast pyrolysis of solid biomass derived compounds. ChemSusChem 1(5):397–400. doi: 10.1002/cssc.200800018

Czernik S, Bridgwater AV (2004) Overview of applications of biomass fast pyrolysis oil. Energy Fuel 18(2):590–598. doi: 10.1021/ef034067u

Bridgwater A, Peacocke G (2000) Fast pyrolysis processes for biomass. Renew Sust Energ Rev 4(1):1–73

Bridgwater AV (2012) Review of fast pyrolysis of biomass and product upgrading. Biomass Bioenergy 38:68–94. doi: 10.1016/j.biombioe.2011.01.048

Bridgwater A (1999) Principles and practice of biomass fast pyrolysis processes for liquids. J Anal Appl Pyrolysis 51(1):3–22

Zhang Q, Chang J, Wang T, Xu Y (2007) Review of biomass pyrolysis oil properties and upgrading research. Energy Convers Manag 48(1):87–92. doi: 10.1016/j.enconman.2006.05.010

Mohan D, Pittman CU, Steele PH (2006) Pyrolysis of wood/biomass for bio-oil: a critical review. Energy Fuel 20(3):848–889. doi: 10.1021/ef0502397

Davidsson K, Pettersson J, Nilsson R (2002) Fertiliser influence on alkali release during straw pyrolysis. Fuel 81(3):259–262

Howe DT, Westover T, Carpenter DL, Santosa D, Emerson R, Deutch S, Starace A, Kutnyakov I, Lukins C (2015) Field-to-fuel performance testing of lignocellulosic feedstocks: an integrated study of the fast pyrolysis/hydrotreating pathway. Energy & Fuels

Andreae MO (1991) Biomass burning: its history, use, and distribution and its impact on environmental quality and global climate. Global biomass burning: Atmospheric, climatic and biospheric implications:3–21

Saidur R, Abdelaziz EA, Demirbas A, Hossain MS, Mekhilef S (2011) A review on biomass as a fuel for boilers. Renew Sust Energ Rev 15(5):2262–2289. doi: 10.1016/j.rser.2011.02.015

Demirbas A (2005) Potential applications of renewable energy sources, biomass combustion problems in boiler power systems and combustion related environmental issues. Prog Energy Combust Sci 31(2):171–192. doi: 10.1016/j.pecs.2005.02.002

Tumuluru JS, Sokhansanj S, Hess JR, Wright CT, Boardman RD (2011) REVIEW: a review on biomass torrefaction process and product properties for energy applications. Ind Biotechnol 7(5):384–401

Tumuluru JS, Wright CT, Hess JR, Kenney KL (2011) A review of biomass densification systems to develop uniform feedstock commodities for bioenergy application. Biofuels Bioprod Biorefin 5(6):683–707. doi: 10.1002/bbb.324

Ragland K, Aerts D, Baker A (1991) Properties of wood for combustion analysis. Bioresour Technol 37(2):161–168

Veijonen K, Vainikka P, Järvinen T, Alakangas E (2003) Biomass co-firing–an efficient way to reduce greenhouse gas emissions. VTT Processes, March 28:A1

Li C, Tanjore D, He W, Wong J, Gardner JL, Sale KL, Simmons BA, Singh S (2013) Scale-up and evaluation of high solid ionic liquid pretreatment and enzymatic hydrolysis of switchgrass. Biotechnol for biofuels 6(1):1–14

Cateto C, Hu G, Ragauskas A (2011) Enzymatic hydrolysis of organosolv Kanlow switchgrass and its impact on cellulose crystallinity and degree of polymerization. Energy Environ Sci 4(4):1516. doi: 10.1039/c0ee00827c

Wang G, Pan X, Zhu J, Gleisner R, Rockwood D (2009) Sulfite pretreatment to overcome recalcitrance of lignocellulose (SPORL) for robust enzymatic saccharification of hardwoods. Biotechnol Prog 25(4):1086–1093

Zhu J, Pan X, Wang G, Gleisner R (2009) Sulfite pretreatment (SPORL) for robust enzymatic saccharification of spruce and red pine. Bioresour Technol 100(8):2411–2418

Mosier N, Wyman C, Dale B, Elander R, Lee YY, Holtzapple M, Ladisch M (2005) Features of promising technologies for pretreatment of lignocellulosic biomass. Bioresour Technol 96(6):673–686. doi: 10.1016/j.biortech.2004.06.025

Chundawat SP, Venkatesh B, Dale BE (2007) Effect of particle size based separation of milled corn stover on AFEX pretreatment and enzymatic digestibility. Biotechnol Bioeng 96(2):219–231. doi: 10.1002/bit.21132

Ray AE, Hoover AN, Nagle N, Chen X, Gresham GL (2013) Effect of pelleting on the recalcitrance and bioconversion of dilute-acid pretreated corn stover under low-and high-solids conditions. Biofuels 4(3):271–284

Kumar L, Tooyserkani Z, Sokhansanj S, Saddler JN (2012) Does densification influence the steam pretreatment and enzymatic hydrolysis of softwoods to sugars? Bioresour Technol 121:190–198

Hess JR, Wright CT, Kenney KL (2007) Cellulosic biomass feedstocks and logistics for ethanol production. Biofuels Bioprod Biorefin 1(3):181–190. doi: 10.1002/bbb.26

McLaughlin SB, Adams Kszos L (2005) Development of switchgrass (Panicum virgatum) as a bioenergy feedstock in the United States. Biomass Bioenergy 28(6):515–535. doi: 10.1016/j.biombioe.2004.05.006

Eranki PL, Bals BD, Dale BE (2011) Advanced Regional Biomass Processing Depots: a key to the logistical challenges of the cellulosic biofuel industry. Biofuels Bioprod Biorefin 5(6):621–630. doi: 10.1002/bbb.318

Hess JR, Wright CT, Kenney KL, Searcy EM (2009) Uniform-format solid feedstock supply system: a commodity-scale design to produce an infrastructure-compatible bulk solid from lignocellulosic biomass—executive summary. Idaho National Laboratory (INL) INL/EXT-09-15423

Thompson DN, Campbell T, Bals B, Runge T, Teymouri F, Ovard LP (2013) Chemical preconversion: application of low-severity pretreatment chemistries for commoditization of lignocellulosic feedstock. Biofuels 4(3):323–340

Yang B, Wyman CE (2008) Pretreatment: the key to unlocking low-cost cellulosic ethanol. Biofuels Bioprod Biorefin 2(1):26–40. doi: 10.1002/bbb.49