Dissertation > Excellent graduate degree dissertation topics show

The Study on the Effect of Desulfurized Gypsum CaSO4 on Modify Behavior of Coal Ash Fusion Teusion Temperature

Author: GaoLing
Tutor: TangLiHua
School: East China University of Science and Technology
Course: Chemical processes
Keywords: Calcium sulfate Ash fusion temperature Atmosphere Pyrolysis
CLC: TQ533
Type: Master's thesis
Year: 2011
Downloads: 67
Quote: 1
Read: Download Dissertation

Abstract


The main component of this thesis is to study desulfurization gypsum CaSO4 as ash melting behavior modifier key research CaSO4 of mixing the ash fusion temperature , provide a new approach for the desulfurization gypsum resource . Two typical coal ash as a raw material , the use of a fully enclosed high-temperature tube furnace , respectively, in the weak reducing and oxidizing atmosphere , the effects of typical high ash melting point and low ash melting point ash melting temperature CaSO4 mixing amount trend. For research CaSO4 high-temperature decomposition properties use FactSage Software thermodynamic calculation of the the different atmosphere CaSO4 high temperature decomposition . To investigate the mechanism of CaSO4 on ash fusion temperature effect , in a different atmosphere , CaSO4, CaO and CaCO3 on the impact of the ash fusion temperature were compared with the final study CaSO4 impact on two typical char gasification . The results show that : CaSO4 incorporation of typical high ash fusion temperature coal ash has a lower ash fusion temperature effect ash fusion temperature , while the typical low ash melting point ash ; different atmosphere , different ash fusion temperature , but its consistent trend ; thermodynamic calculations show that reducing atmosphere conducive to the decomposition of CaSO4 ; CaSO4 incorporation had no significant effect on the gasification reactivity .

Related Dissertations

  1. Quantitative Analysis of Pyrolysis Component of Typical Low Volatile Coal of Chinese,TQ530.2
  2. Preparation and Properties of Silicon Carbon Anode for Lithium Ion Battery,TM912.9
  3. Rebellion of an and Shi and Poetic Style Evolution from Kaiyuan to Tianbao,I207.22
  4. Phosphogypsum to restore the system vulcanizing process optimization and research of calcium,X786
  5. The lignite Preparation metallurgical reduction gas,TD849.2
  6. Study on Pyrolysis of the Sediment from Dianchi Lake and Pyrolysis Productions,X131.2
  7. Effect of Black Carbon Addition on Soil Organic Carbon Decomposition,S153.6
  8. The Comprehensive Evaluation of Flue-cured Tobacco Origin Place Environment and Tobacco Leaf of Fangxian,S572
  9. Study on Quality Change and Prediction Model for Shelf-life of Chilled Pork,TS251.4
  10. Study on Synthesis of Xyloses Esters and Their Application in Cigarette,TQ655
  11. Large-scale demonstration of coal pyrolysis Exploration and Practice,TQ536
  12. Experimental Study of Effects of Calcium on Steam Gasification of Shenhua Lignite,TQ541
  13. Synthesis of SnO2 by Flame Spray Pyrolysis: Structures Design and the Gas Sensing Properties,TB383.1
  14. Experimental Research on Microwave Pyrolysis for High Value-added Bio-products,TK6
  15. The Influence of Performance Appraisal Satisfaction on Individual Information Ethical Behavior,F224
  16. HPWS, knowledge sharing, organizational learning atmosphere impact on employee performance,F272
  17. Catalytic reduction of nitrogen oxides of iron Experimental Study,X701
  18. Precursor Preparation of ZrO 2 -modified C / SiC composite materials and their properties,TB332
  19. Boron nitride fiber reinforced ceramic matrix composites through the waves and Properties,TB332
  20. Synthesis and Characterization of ZnO Films by Ultrasonic Spray Pyrolysis,TB43
  21. Experimental study of the copper residue catalytic pyrolysis gas , chemical and biological substances,X758

CLC: > Industrial Technology > Chemical Industry > Processing and utilization of coal chemical and coal > Analysis and testing of the coal
© 2012 www.DissertationTopic.Net  Mobile