Dissertation > Excellent graduate degree dissertation topics show

Study on the Synthesis of Zeolites from Oil Shale Ash

Author: ZhangHong
Tutor: MengChangGong
School: Dalian University of Technology
Course: Inorganic Chemistry
Keywords: Zeolites Oil Shale Ash Hydrothermal treatment
CLC: O643.36
Type: Master's thesis
Year: 2009
Downloads: 156
Quote: 0
Read: Download Dissertation

Abstract


Zeolites are crystalline aluminosilicates with indefinitely extending three-dimensional network of aluminium and silicon tetrahedral linked by sharing of oxygen atoms.Due to their excellent ion exchange,catalytic and adsorption properties,they are widely applied in the fields of detergent industry,petrochemical industry and fine chemical industry etc.At present, the main materials used to synthesized zeolites are the chemical materials,which results in a high cost and the widely utilization has been limited.Therefore,many researchers try to seeking cheap materials for their synthesis.Based on lots of literatures of zeolites synthesis,a series of zeolites are hydrothermally synthesized successfully from the oil shale ash.Besides,the influence of treatment conditions is studied systematically.A series of zeolite products（SOD,ANA and CAN type） were synthesized by using oil shale ash and alkali solution as starting materials through the hydrothermal method.It is discussed in depth the effects of H2O/Na2O、Na2O/SiO2 molar ratio on the synthesis of zeolites.The binary crystallization phase diagram was obtained and the key parameters of synthesizing zeolites were optimized to achieve the best synthetical conditions.A modified fusion process is studied to synthesis NaA and NaX from oil shale ash.It is found that the fusion process could be utilized for the synthesis of NaX and that the addition of alumina to the fused fly ash produced single phase NaA.The result confirms that the quantity of dissolved Al species is critical for the type of zeolite formed.Converting oil shale into zeolites not only alleviates the disposal problem but also turns an waste material into a marketable commodity.

Related Dissertations

  1. Study on the Synthesis and Photocatalytic Activity of BiVO4 Photocatalysts,O643.36
  2. Controll Morphology of Mg（OH）2 in Flame-Retardance and Its Modification,O614.22
  3. Catalytic Performance of HZSM-5 Modified by Mn/Fe-Mn for the NH3-SCR,O643.32
  4. Preparation and Application of C-MCM-22 Composite Zeolites,TB383.4
  5. Research in Migration and Transformation for Major Components of Corncob by Hydrothemal Treatment,TQ353.1
  6. Research on Petrologic and Geochemical Characteristics of Eocene Oil Shale and Its Enrichment Regularity, Huadian Basin,P618.130
  7. Methane Non-oxidative Aromatization Over Mo Based Catalysts,O621.253
  8. MFI Zeolites for the Vapor Phase Beckmann Rearrangement of Cyclohexanone Oxime,O621.25
  9. Synthesis and Characterization of TS-1/SiO2 Catalyst,TQ426
  10. The Study on the Preparation of Alumina and Silica from Oil Shale Ashs,TE992.3
  11. Preparation of Ni/γ-Al2O3 Catalyst with High Hydrothermal Stability and Study on Its Perpormance for Hydrogenation of Butynediol,O643.36
  12. Preparation and Characterization of Fine Structural Hydroxide Aluminum and Alumina Powders,TB383.1
  13. Synthesis and Characterization of Meso-microporous Titaniumsilicate,O643.3
  14. Preparation Oriented Titanium Oxide Thin Film by Electrophoretic Deposition and Hydrothermal Treatment,TB383.1
  15. Investigation of Adsorption Process on Zeolites and Modified Zeolites by Frequency-Response Method,TQ028.15
  16. Studies of Solid-State MAS NMR on the Acidity in TS-1 Zeolite and Its Catalytic Oxidation of Styrene,O657.2
  17. All - silica zeolite with organic molecules interaction simulation and low silica zeolite crystallization behavior research,O78
  18. Extraction of Alumina from Oil Shale Ash and Its Application,O614.31
  19. Studies of Adsorption Behavior of Sulfur Compounds in Selective Adsorption Desulfurization for Clean Fuel,O643.32
  20. Micromechanism and Combustion Characteristics of Low-rank Coal Water Slurry Upgraded by Hot Water Treatments,TQ53

CLC: > Mathematical sciences and chemical > Chemistry > Physical Chemistry ( theoretical chemistry ),chemical physics > Chemical kinetics,catalysis > Catalytic > Catalyst
© 2012 www.DissertationTopic.Net  Mobile