Dissertation > Excellent graduate degree dissertation topics show

Experimental Study on the Behavior of Coal Gasification by TGA

Author: SunRui
Tutor: GuoXin
School: Huazhong University of Science and Technology
Course: Thermal Power Engineering
Keywords: coal gasification TGA gasification reactivity catalyst
CLC: TQ541
Type: Master's thesis
Year: 2011
Downloads: 124
Quote: 0
Read: Download Dissertation

Abstract


A lot of coal-burning bring us serious environmental pollution, one of the main ways is to research, develop and apply the coal gasification technology. Although there are various coal gasification technologies been developed successfully in foreign countries, advanced coal gasification technology in China is still in development stage. Therefore, the research of coal gasification technology that suitable for our country’s coal resources is of particular practical significance to satisfy the requirement of the economic development to coal clean utilization.This paper studied gasification behavior of Xiaolongtan coal and Datong coal, Na2CO3,NaAC,NaCl and compound catalysis Na2CO3+NaCl as the catalysis used in coal gasification.Volumetric impregnation and TGA was applied in this researsh and results were carried out: Na2CO3,NaAC showed the high catalytic for two types of the coals,the gasification efficiency was improved and the gasification temperture was reduced mostly,and the efficiency of the catalytic gasification of these coals was improved with increasing of the catalysis concetration;the catalytic gasification of NaCl was less on the coals ,the catalytic activity of compound catalysis Na2CO3+NaCl also showed good activity on the coals.This paper also studied the impact of the type of coal,concentration of catalyst and ash to catalytic gasification reactivity,and it showed that:in a certain range ,the efficiency of catalytic gasification of these coals was improved with increasing of the catalyst concentration;catalytic gasification reactivity of Datong coal was better,this suggested that catalytic effect of catalyst to high rank coal was superior to low rank coal;gasification reactivity of raw coal was higher than demineralization coal during low temperature because of ash,but it was opposite during high temperature, the efficiency of catalytic gasification of these coals was also improved with increasing of the ash concentration,which suggested the ash could catalyze the gasification recation.Kinetic parametres of catalytic gasification of coal were computed by the data from TGA, which conformed to the conclusion of experiment.

Related Dissertations

  1. Study on the Procees for the Preparation of Prohexadione and Its Analogs,TQ452
  2. Experimental and Simulation Study on Gasification Characteristics of Huainan Coal,TQ546
  3. Study on Using Sepiolite As Supported Catalysts in Selective Hydrogenation of Cinnamaldehyde to Cinnamyl Alcohol,O643.32
  4. The Preparation of Polyaniline-Metal Complex and the Study on Its Catalytical Property,O634
  5. Synthesis and Characterization of Monovalent, Divalent Imidazolium Ionic Liquids Containing Hydrocarbons,O621.3
  6. Investigation on Gasification Characteristics of Pulverized Coal in Entrained Flow Gasifier Based on Flameless Oxidation,TQ546
  7. Pt -based catalysts of direct methanol fuel cells,TM911.4
  8. The Performance Research of Coal-based SOFC/IGCC Combined Cycle Power Generation System,TM611.3
  9. Fundamental Study on Direct Reduction of Oxidized Pellets by Gas-based Shaft Furnace,TF046.6
  10. Investigation on Catalysts and Sorbents Used for Sorption-Enhanced Steam Methane Reforming,TQ116.2
  11. Application of Hierarchically Macro-/Mesoporous Structured Metal Oxides to Hydrodesulfurization of Thiophene and Benzothiophene,TQ032
  12. Study on the Preparation Technology, Structure and Properties of Carbon Fiber from Cnts Reinforced Lyocell Fiber,TQ342.742
  13. The Analysis of Safty and Economy of Idonesia Coal Mixed Burn in Coal-fired Boiler,TK227.1
  14. Photocatalytic Degradation of Malachite Green and p-Nitroaniline Using H3PW12O40/TiO2 as Composite Photocatalyst,X703
  15. Basic Study on the Physical-Chemical and Pyrolysis-Incineration Characteristics of Typical Components in Medical Wastes,X799.3
  16. Study on Dimine-nickel Catalyst for Ethylene Polymerization,TQ325.12
  17. Study on Co-based Perovskite Composite Oxide Catalysts for Deoxidization in Coal Bed Methane,TD712.67
  18. Catalytic Reduction of Nitrate in Groundwater Over Pd-Cu/AC Catalyst,X523
  19. Study on the Preparation and Denitration Properties of Honeycomb SCR Catalyst,O643.36
  20. Yanzhou Tianchi mine gob fire retardants preferred,TD752.2
  21. Recovery of zinc and nickel from spent catalyst,TF81

CLC: > Industrial Technology > Chemical Industry > Coal gasification industry > Gasification theory ( combustible gas,gas )
© 2012 www.DissertationTopic.Net  Mobile