Dissertation > Excellent graduate degree dissertation topics show

Experimental Study on Pyrolysis and Combustion Characteristics of Paint and Tar Based Single Hazardous Wastes

Author: LiuChen
Tutor: ZhaoGuangBo
School: Harbin Institute of Technology
Course: Thermal Power Engineering
Keywords: Single hazardous waste Prolysis Combustion Kinetic parameters Combustion model
CLC: X705
Type: Master's thesis
Year: 2008
Downloads: 20
Quote: 0
Read: Download Dissertation

Abstract


Following the development of economic and living standards in China, a great number of solid wastes are produced, especially hazardous wastes, so as to menace our living condition. So it is important that the basic researchments of hazardous wastes disposing are developed.In order to understand the pyrolysis and combustion characters of hazardous wastes, it is necessary to study the pyrolysis and combustion characters of single hazardous wastes, and apply basic dates for hazardous wastes hermochemistrical disposition. This paper studies the pyrolysis and combustion of paint and tar based single hazardous wastes by thermogravimetry.An experimental apparatus of thermogravimetry analysis for larger particles was designed and built. On this experimental apparatus, studied single paint and tar based hazardous wastes pyrolysis of different heating rates、different final temperatures, got pyrolysis curves. By comparing the curves, found with the increasing of heating rate, the pyrolysis rate of single paint and tar based hazardous wastes was speeding up. But in a certain range, heating rate had no effect with the weight loss rate. Different final temperatures have the same thermogravimetry curve shape. Single paint and tar based hazardous wastes pyrolysis process can be divided into three stages. After analyzed experimental data, by using the first order reaction kinetics model, we calculated pyrolysis kinetic parameters of different conditions.On this experimental apparatus, studied single paint and tar based hazardous wastes combustion of different excess air ratio、different furnace temperatures, got combustion curves. By comparing the curves, found with the increasing of excess air ratio, the burning rate of single hazardous wastes was speeding up. But when excess air ratio reached 1.75, excess air ratio has little effect on the burning rate. With the increasing of furnace temperatures, the weight loss rate of single paint and tar based hazardous wastes was significantly increased. But when furnace temperatures reached 850℃, furnace temperatures has little effect on the weight loss rate.Two models of larger hazardous wastes particles were established, then we compared the calculated value with experimental data, found the second model can fitting better. Then we can use it to simulate the burning weight lossing process of single hazardous wastes particles.

Related Dissertations

  1. Pattern Classification of Combustion Modes in Scramjet,V235
  2. Experimental Study on Combustion Characteristics of Corn Straw in a Fixed Bed,TK16
  3. Numerical Simulation of Biomass Direct Reburning,TK16
  4. Numerical Simulation on Pulverized Coal Combustion Process in a 670T/H Tangential Firing Furnace,TK224.11
  5. Characteristic Study of Combustion in Central Reverse Flame Chamber,TK223.21
  6. Experimental Study and Analyses of O2 -CO2 Production Based on Chemical Looping Method,O611.3
  7. Cobalt Ferrite and Its Performance,O611.4
  8. Oil sludge production and use of coal- water slurry experimental study,TQ536
  9. Simulation Study on the Spray and Combustion Characteristics of LPG-DEM Blends on the DME Engine,TK437
  10. Stainless Steel Bright Annealing Furnace with Waste Heat Recovery Energy-saving Technology Research,TG155.1
  11. Coal-fired Power Plants Denitration Transform Research and Practice,X701
  12. The System Design and Computational Fluid Dynamics Simulation for Chemical Looping Combustion,O35
  13. The Research and Design of a Fire Detection System Based on Combustion Audio Recognition,X924.4
  14. Br-impregnated Calcium-based/mineral Sorbents for Mercury Removal from Flue Gas,X701
  15. Experimental Study of Mercury Removal with Wet Flue Gas Desulfurization System,X773
  16. Study on Mineral Transformation Mechanism During High-silicon Coal Combustion and Agglomeration of Fine Particles,TK16
  17. Image Processing-based Modelling and Optimal Control of Combustion in a W-shaped Flame Boiler,TK229
  18. In-furnace Temperature Information Included Combustion Optimization of a Utility Boiler,TK227.1
  19. Numerical Modeling and Experimental Study on Combustion of Natural Gas Engine,TK437
  20. Experimental Study on the Infrared Emissivity Measurement of Laminar Ethylene/air Diffusion Flame,TK16

CLC: > Environmental science, safety science > Processing and comprehensive utilization of waste > General issues > Solid waste disposal and utilization
© 2012 www.DissertationTopic.Net  Mobile