Dissertation > Excellent graduate degree dissertation topics show

Experiment Study on Coal Partial Gasification Utilization Technology in Fluidized Bed

Author: HuangJunJun
Tutor: WangQinHui；ChengLeMing；ShiZhengLun
School: Zhejiang University
Course: Engineering Thermophysics
Keywords: Partial gasification Air / water vapor Gas recirculation Tar Oxidative pyrolysis
CLC: TK227.1
Type: Master's thesis
Year: 2005
Downloads: 277
Quote: 2
Read: Download Dissertation

Abstract


Coal Part gasification technology is based on the different reaction characteristics of the coal in the different stages of conversion, the embodiment pyrolysis, gasification, combustion classification conversion. The partial gasification technology compared to completely gasification technology can make coal gasification technology to simplify the process more efficient, reducing the investment. Use of coal partial gasification process technology and research progress are summarized in the fluidized bed gasifier due to simple structure, high gasification efficiency is widely used part of the gasification technology. The basis of the part of the summary of a typical coal gasification use technology, Zhejiang University of coal air / water vapor partial gasification combustion integrated combined cycle power generation systems and pyrolysis and combustion, thermal electrical cogeneration two different the technical solutions, and the the coal air / water vapor partial gasification burning integrated combined cycle power generation system performance is calculated. Then select a typical power coal obtained by thermogravimetric coal pyrolysis, gasification, combustion the reaction characteristics under different transformation process and its influencing factors; study by thermogravimetric analysis gasification of char combustion, gasification The depth of the semi-coke combustion characteristics and final carbon conversion reaction, further illustrate the significance of the classification of coal conversion. Experimental stage in a small fluidized bed pyrolysis of coal and air / water vapor partial gasification experiments, the bed temperature, particle size, air fuel ratio, steam coal ratio on pyrolysis, gasification The impact of the law, the extent and impact of the air / water vapor partial gasification of carbon conversion factors of the carbon conversion rate, laid the foundation for the gasification combustion integrated use of technology. Integrated devices and recycling Gas Coal combustion of the air / water vapor partial gasification in order to find the two different gasification medium Zhejiang University of partial gasification of the advantages of the use of technology and technical issues that may exist in the process verification test bench pyrolysis and combustion integration means to carry out a verification test, to optimize the operating parameters of the part of the gasification furnace and the combustion furnace, and confirmed the feasibility of the two techniques. Finally, for the recycle gas coal pyrolysis and combustion integrated revealed higher tar content designed the oxidation of tar pyrolysis test rig to study the pyrolysis temperature and the initial tar content of the thermal cracking of tar oxidation. In this paper, TGA experiments, small fluidized bed reactor, process verification test study of partial gasification in different atmospheres and different operating conditions of the gas yield, gas composition, carbon conversion rate, to study engineering applications-oriented part of the coal gasification provide a basis for the design and operation of the demonstration plant.

Related Dissertations

  1. Analysis on Mechanical Behavior of Asphalt Mixture with 3D Random Model,U414
  2. Preparation and Peformance Studies of Mesocarbon Microbeads,TM912
  3. Studies on Catalysts and Hydroprocessing Technology of Low-temperature Coal Tar,TQ522.6
  4. Research on Repairing Materials of the Asphalt Pavement Pit,U414
  5. Analysis and Study of the Technology of Preventing Slagging in the furnace with Flue Gas Recirculation of Type E420-13.73-560KT Boiler Made in Russia,TK227
  6. Carbon material matrix asphalt modified,TQ522.65
  7. The Determination and Analysis of the Rheological Behavior of Coal-tar Pitches,TQ522.63
  8. Catalytic Conversion of Biomass Tar Model Compound,TK6
  9. Research on Selecting and Matching Turbo System of Vehicle Diesel Engine,TK423
  10. Experimental Research on Reducing Emission with EGR on DME-Diesel Mixed Fuel Engine,TK421
  11. Simulation of Low Temperature Premixed Charge Combustion on VM R425DOHC Diesel Engine,TK421.2
  12. A Study on Preparation of Needle Coke,TQ522.65
  13. Catalytic Conversion of Biomass Pyrolysis Tar,TK6
  14. Research of Mathematic Model Buiding for Cigarette Quality Control,TS47
  15. State IV emission light vehicle diesel engine technology research,U464.172
  16. Study on Thermal Kinetics Characteristics of Biomass Tar and Its Distillations,S216
  17. The Impact on Tobacco Control Work of the "Lowering Tar and Reducing Harm of Tobacco" Action Taken by China’s Tobacco Companies,R193
  18. Blending ethylene tar residue heat coke Reaction,TE624
  19. Experimental Research on Natural Gas of U-type Tube Using High Temperature Air Combustion,TK16
  20. The Development of Nickel Catalyst of New Type and Its Application Research on Biomass Catalytic Gasification,TQ511

CLC: > Industrial Technology > Energy and Power Engineering > Steam Power Engineering > Steam boiler > Run > Combustion and adjustments
© 2012 www.DissertationTopic.Net  Mobile