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NO x Chemistry for Biomass and Coal

NO x Chemistry for Biomass and Coal. Larry Baxter Brigham Young University Provo, UT 84602 17 th Annual ACERC Conference Salt Lake City, UT February 21, 2003. Initial Fuel Compositions Vary. Initial Fuel Compositions Differ. Wood has less nitrogen and no chlorine compared with alfalfa.

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NO x Chemistry for Biomass and Coal

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  1. NOx Chemistry for Biomass and Coal Larry Baxter Brigham Young University Provo, UT 84602 17th Annual ACERC Conference Salt Lake City, UT February 21, 2003

  2. Initial Fuel Compositions Vary

  3. Initial Fuel Compositions Differ • Wood has less nitrogen and no chlorine compared with alfalfa. • Alfalfa has large fraction of amine nitrogen. Wood has essentially no amine nitrogen. • C:H ratios and dry ash free heating values are very similar. • Alfalfa has much more ash than wood, with much more silica in the ash.

  4. Coal CHNO Release Rates

  5. Biomass (Alfalfa) CHNO and Cl

  6. A Reburning Issue

  7. Particle Effect

  8. Hydrogen vs Solid Fuels

  9. Natural Gas vs Solid Fuels

  10. Alfalfa Generates NH3

  11. NH3 Reacts with NO

  12. Stoichiometry and Temperature Impacts

  13. Coal: Stoichiometry and Temperature Impact Results

  14. Ammonia Chemistry (GRI Mech)

  15. NH3 Chemistry (Kilpenen)

  16. HCN Chemistry

  17. Stoichiometry and Temperature Impacts

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