Steele repreve 1 13-11


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Dr. Phil Steele, MSU, gives a talk on pyrolysis research, using Freedom Giant Miscanthus. They turned the feedstock miscanthus x giganteus in to gasoline, diesel and aviation fuel. Originally presented at the Freedom Field Day.

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Steele repreve 1 13-11

  1. 1. The Potential for Production of Fuels from Giant Miscanthus via Pyrolysis Philip Steele Professor and SERC Bio-oil Thrust Leader Sustainable Energy Research Center Mississippi State University
  2. 2. Acknowledgements <ul><li>This research is based upon work funded through the Sustainable Energy Research Center at Mississippi State University and is supported by the Department of Energy under Award Number DE-FG3606GO86025 . </li></ul>
  3. 3. MSU bio-oil objectives: <ul><li>Develop more effective pyrolysis reactors to produce high-quality bio-oils at optimum yield </li></ul><ul><li>Upgrade bio-oils to commercial liquid fuels </li></ul><ul><li>Commercialize technologies by demonstration projects and industrial relationships </li></ul>
  4. 4. <ul><li>Oxygen in bio-oil: 45-50% by weight </li></ul><ul><ul><li>Incorporated in oxygenated compounds </li></ul></ul><ul><li>Causes most of the negative properties: </li></ul><ul><ul><li>Variable viscosity </li></ul></ul><ul><ul><li>High acidity </li></ul></ul><ul><ul><li>Pungent odor </li></ul></ul><ul><ul><li>Low energy density </li></ul></ul>Bio-oil challenges:
  5. 5. Development effective auger pyrolysis reactors: <ul><li>Auger reactors can be built with reduced capital investment </li></ul><ul><li>Auger reactors are more readily produced at small scale </li></ul>
  6. 6. Giant miscanthus pyrolysis products: <ul><li>Giant miscanthus yield is 60% vs 65% for pine wood </li></ul><ul><li>Hydrocarbons can be produced from giant miscanthus bio-oil </li></ul>
  7. 7. The MSU auger reactor design is under MOU to an industrial partner: <ul><ul><li>Prototype 10 ton/day reactor built to MSU design is producing bio-oil at 67% yield </li></ul></ul><ul><ul><li>All benchmarks have been met and licensing should be completed during September 2010 </li></ul></ul><ul><ul><li>Construction of a 50-ton per day pyrolysis facility planned for 2012 </li></ul></ul>
  8. 8. Our proprietary HDO catalyst produces a high-quality hydrocarbon mix: Hydrogen Removal of oxygenated compounds Water + HDO bio-oil Water Hydrocarbons Bio-oil <ul><li>Yield is 1.1 bbl of hydrocarbons per dry ton of biomass; this represents 40% (goal = 50%) of the original energy contained in the bio-oil. </li></ul>
  9. 9. Properties of HDO bio-oil vs diesel: Property HDO bio-oil Diesel Water content (wt%) 0 0 Acid value (mg KOH/g) <0.1 0 Viscosity (cSt @ 40C) 2.8  2.6  HHV (MJ/kg) 45.2 45.8 Carbon (%) 88.6  85.1  Hydrogen (%) 11.4  12.2  Oxygen (%) 0 0 
  10. 10. GC simulated distillation showing fuel components of HDO bio-oil hydrocarbon mixture:
  11. 11. Upgrading bio-oil : <ul><li>Lignocellulosic Boiler Fuel (LBF) </li></ul>
  12. 12. LBF combustion flame produced with a drop-in injector replacement module:
  13. 13. Physical and chemical properties of LBF bio-oil: Property Raw bio-oil LBF Water Content (%) 24.2 7 Acid value ( mg KOH/g) 89 46 Viscosity (cSt @ 40 o C) 14.53 5.6 HHV (MJ/kg) 17.5 31.9
  14. 14. Upgraded bio-oil : Anhydrosugars to ethanol or hydrogen
  15. 15. Anhydrosugar production via fast pyrolysis: <ul><li>Biomass pretreatments allow anhydrosugars to be generated in significant quantities in the aqueous fraction (MSU = 51% vs previous high of 36%; 30% increase) </li></ul><ul><li>Anhydrosugars can be catalytically reformed to produce hydrogen </li></ul>Levoglucosan
  16. 16. <ul><li>Alternatively, the sugar-rich aqueous fraction can be hydrolyzed and fermented to ethanol. </li></ul>Anhydrosugar production via fast pyrolysis, cont’d:
  17. 17. <ul><li>Raw </li></ul><ul><li>bio-oil </li></ul>Raw bio-oil and fractionation products: 71% Aqueous phase fraction 29% Pyroligneous fraction
  18. 18. High percentage of anhydrosugars in bio-oil aqueous fraction (51%); GC/MS spectra: Anhydrosugars Final patent to be filed in October 2010
  19. 19. Raw aqueous fraction before and after filtration of inhibitors; after hydrolysis to glucose: <ul><li>We have produced </li></ul><ul><li>ethanol without </li></ul><ul><li>problem with the </li></ul><ul><li>hydrolyzed glucose </li></ul>
  20. 20. Future activities: <ul><li>Catalytic pyrolysis reactor design is completed and will be built by the end of the year </li></ul><ul><li>A 4-ton per day auger reactor and 100-gal per day hydrotreater and esterified bio-oil production capabilities will be housed in an SERC pilot plant on MSU campus </li></ul><ul><li>MSU auger reactor licensee will commercialize and scale up production based on their success with a 10-ton per day MSU design </li></ul>
  21. 21. Future activities, cont’d: <ul><li>Aqueous fraction sugars will be produced from giant miscanthus bio-oil </li></ul>
  22. 22. Philip Steele Professor and SERC Bio-oil Thrust Leader Sustainable Energy Research Center Mississippi State University The Potential for Production of Fuels from Giant Miscanthus via Pyrolysis
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