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Flash Pyrolysis of Biomass in a Pyrolysis Centrifuge Reactor

Flash Pyrolysis of Biomass in a Pyrolysis Centrifuge Reactor. Norazana binti Ibrahim Supervisors Professor Kim Dam-Johansen Assoc.Professor Peter Arendt Jensen. Pyrolysis.

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Flash Pyrolysis of Biomass in a Pyrolysis Centrifuge Reactor

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  1. Flash Pyrolysis of Biomass in a Pyrolysis Centrifuge Reactor Norazana binti Ibrahim Supervisors Professor Kim Dam-Johansen Assoc.Professor Peter Arendt Jensen

  2. Pyrolysis .....“the thermal conversion to condensable liquids, gases and char by heating the material in an oxygen free environment” The selectivity depend on the temperature,type of biomass, heating rate, reactor configuration. Flash Pyrolysis Maximize bio-oil production

  3. Patented Flash Pyrolysis at CHECPyrolysis Centrifuge Reactor (PCR) • Stationary, Compact, robust, without moving hot sand or gas for fluidization • Particles introduced tangentially • Rotor creates swirling gas • Centrifugal force presses particles against wall

  4. The Pyrolyzer • Eliminate baling, handling • and transport of straw • Improve farmer’s financial • incentive • Utilization of charsoil • improvement

  5. Objective of PhD work Current • Flash Pyrolysis  Maximize bio-oil production • Test the suitability of PCR with various biomass  optimum condition • Bio-oil storage stability Near Future • Bio-oil combustion properties • Model development

  6. Experimental work Pyrolyzed Biomass Biomass: Pine Wood, Wheat straw, Rice husk Variable: Temperature, initial moisture content Yield: Bio-oil (liquid Organic & water), char and gases

  7. Results 1: Influence of moisture contentDry:1.5, As received: 6.2, Wet: 15.0 (%wt) (a) (b) • Additional of water favor quick removal of volatiles, high organics yield • High gas+water formation at low moisture content

  8. Results 2: Influence of biomass typesWheat Straw, Rice Husk and Pine Wood (a) (b) • Effect of mineral matter in biomass • Shift the reaction temperature optimum • Catalyze a conversion of tar to gases • Straw ash: 6.02 %wt, dominated by K • Rice husk ash: 13.6 %wt, Majority Si • Wood ash: 0.50 %wt, high Ca

  9. Conclusion The distribution of pyrolysis product yields greatly depend on the type of bimass, pyrolysis temperature and initial biomass moisture content Collaboration DTU_RISØ (BIOCHAR Project) Biochars potential soil(C-sequestration)

  10. Thank you

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