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REACTIVITY STUDIES OF SLUDGE AND BIOMASS COMBUSTION

REACTIVITY STUDIES OF SLUDGE AND BIOMASS COMBUSTION. Noorfidza Yub Harun Muhammad T Afzal Norliza Shamsuddin Faculty of Forestry and Environmental Management University of New Brunswick, Fredericton, NB. CSBE Annual Conference, Brudenell River Resort,

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REACTIVITY STUDIES OF SLUDGE AND BIOMASS COMBUSTION

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  1. REACTIVITY STUDIES OF SLUDGE AND BIOMASS COMBUSTION Noorfidza Yub Harun Muhammad T Afzal Norliza Shamsuddin Faculty of Forestry and Environmental Management University of New Brunswick, Fredericton, NB CSBE Annual Conference, Brudenell River Resort, Prince Edward Island, July 12-15, 2009

  2. 1 2 3 4 5 6 Project Background Objectives Methodology Results and Discussion Conclusion Recommendations Contents

  3. PROJECT BACKGROUND “….. biomass has a great potential today and in the future, since it is renewable, in contrast to the nature of the fossil fuels”- E. NATARAJAN- GLOBAL WARMING INCREASE IN ENERGY DEMAND CURRENT ISSUES INCREASE IN CRUDE OIL PRICE DEPLETION OF FOSSIL RESOURCES

  4. BIOMASS WASTE Petroleum Refinery Sludge Sugar Cane Bagasse Sawdust • 20.8 million tonnes available • can generate 700MW energy • one-third for energy production saved RM 2 billion of import’s bill • 100,000 tonnes annually • drying and filter press alone • sending to centralized waste treatment; costly

  5. INITIAL BIOMASS PROPERTIES Calorific Value Composition

  6. OBJECTIVE DETERMINE THE KINETIC PARAMETERS OF SLUDGE, BAGASSE AND SAWDUST

  7. THEORY

  8. THEORY

  9. METHODOLOGY Preparation of Samples Heating at 110oC (2 hours) Grinding

  10. METHODOLOGY Controlled Parameters Effect of Heating Rate: 35 oC/min , 50 oC/min Effect of Sample Size: 425 µm, 1.18 mm

  11. METHODOLOGY (i) Moisture Content Analysis (ii) Calorific Value Analysis (iii) Composition Analysis (iv) TGA Analysis

  12. RESUTLS & DISCUSSION Sample Pre-treatment

  13. RESUTLS & DISCUSSION TGA Analysis Decompose at 100- 150°C • Indicates by-product, includes non-condensable & condensable gas • - Devolutilisation at 150- 220 °C Carbonization at 250- 300 °C

  14. RESUTLS & DISCUSSION TGA Analysis Zone 1 Zone 2

  15. RESUTLS & DISCUSSION Thermal Degradation of Sludge – Effect of Heating Rate and Particle Size Zone 1 Zone 2

  16. RESUTLS & DISCUSSION Thermal Degradation of Bagasse – Effect of Heating Rate and Particle Size

  17. RESUTLS & DISCUSSION Thermal Degradation of Sawdust – Effect of Heating Rate and Particle Size

  18. Exp. run Ea (kJ/mol) Z (1/min) 1st. zone 2nd. zone 1st. zone 2nd. zone 1 44.29 35.68 5.43 x 105 6.80 x 104 2 45.05 37.71 7.11 x 105 7.11 x 104 3 42.98 32.45 3.71 x 104 7.03 x 103 4 43.97 34.97 3.94 x 104 7.23 x 103 5 97.32 72.72 1.45 x 107 3.80 x 104 6 98.96 61.26 2.26 x 107 8.63 x 104 7 76.77 69.29 2.09 x 105 5.52 x 103 8 78.12 64.50 3.27 x 105 8.82 x 103 9 38.60 142.37 3.33 x 102 6.04 x 1010 10 48.59 152.14 3.97 x 102 7.10 x 1010 11 42.67 78.23 1.77 x 102 1.01 x 105 12 43.34 116.70 1.87 x 102 1.22 x 105 Kinetic Parameters

  19. RESUTLS & DISCUSSION Kinetic Parameter Analysis; Activation Energy for Sludge, Bagasse and Sawdust

  20. CONCLUSIONS • Two distinct reaction zones were observed for all samples • The kinetic parameters; activation energy and pre-exponential factors, for sludge and bagasse, in the first zone were found to be significantly higher than that of the second zone. • while for sawdust the trend was other ways.

  21. RECOMMENDATIONS 1. Analyze using SEM for polymeric structure 2. Analyze volatiles and gases species using FTIR 3. Investigate other biomass properties 4. Vary more properties

  22. Thank You ! Questions and Answers

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