Dissertation > Excellent graduate degree dissertation topics show

Solid base catalyst tallow tree the Azusa oil biodiesel production

Author: TaoShuWei
Tutor: YangSong
School: Guizhou University
Course: Organic Chemistry
Keywords: The Chinese tallow Azusa oil Biodiesel Transesterification reaction Sepiolite Solid base Surfaces corresponding Optimization
CLC: TK6
Type: Master's thesis
Year: 2009
Downloads: 82
Quote: 0
Read: Download Dissertation

Abstract


Biodiesel is an environmentally friendly renewable energy, high-quality petroleum diesel substitute. It has a renewable, biodegradable, non-toxic, contains no sulfur and aromatics, burning fewer carcinogens and dust emissions, etc., has become a global hot topics in the field of renewable energy. Biodiesel as an environmentally friendly and renewable energy by more and more attention, but the industry bottleneck problem of raw materials. The cost of raw materials accounted for 60 to 75% of the total cost of production of bio-diesel, vegetable oils, especially non-edible oil attracting much attention. Chinese tallow tree (Sapium sebiferum (L.) Roxb.) Non-edible oils, and can be grown in the wasteland, is China's four major woody oil crops, has the characteristics of a high oil content (oil yield up to 40%). Vigorously growing Chinese tallow oil crops, the development of bio-energy suppliers, increasing farmers' income and improving their living standards, but also promote the economic and social development of rural areas and the surrounding area. The physical (steam off white) grease dewaxing and chemical (solvent extraction) method to get pure Azusa oil and its physical and chemical indicators were measured paper were used. Preparation of biodiesel using solid base catalyst, focus on screening out suitable for biodiesel production development of low-cost, simple preparation, high activity, activity lasting, easy to renewable, environment-friendly solid base catalyst preparation process environmentally friendly, easy product separation. In elemental analysis by X-ray spectra, thermal gravimetric analysis, infrared spectroscopy and X-ray powder diffraction method to characterize the catalysts and mechanism studies to determine catalyst activity bit decomposition temperature, generate a group of the active sites of the catalyst surface and the relationship between the catalytic effect. The the sepiolite solid base catalyst is applied to the Chinese tallow Azusa oil biodiesel production, measured and analyzed its performance and composition. Using statistical software (response surfaces) to optimize the biodiesel preparation process, in order to obtain the best bio-diesel preparation conditions, and reduce the cost of biodiesel. The paper through the analysis of the the Chinese tallow Azusa oil physical and chemical indicators (acid value, iodine value, saponification value) the determination of their fatty acid composition were measured and analyzed by GC / MS and the results show that the Chinese tallow the main Azusa oil contain six kinds of fatty acids . Using X-ray spectroscopy and elemental analysis, and thermal gravimetric analysis, infrared spectroscopy and X-ray powder diffraction method, the catalyst characterization analysis and mechanism studies to determine the decomposition temperature of the catalyst produced the active bit, to produce a catalyst surface active sites point of the relationship between the group and the catalytic effect. Characterization methods to infer the catalyst active sites may be due to: methanol adsorbed on CaO on the surface and the formation of the pro-nuclear groups (CH 3 O - ), and then attack the ester keys on the carbon atom: In addition, CaO adsorption materials, air in the water and the formation of OH is one of the reaction pathways: 3 using a central composite design solid the base catalyzed Tallowtree Zi oil prepared biodiesel experiment, using statistical software optimization Design-Expert experimental mathematical model: Y = 97.47-0.78X 1 0.62X 2 -0.35X 3 -1.03X 4 -0.94X 1 2 -6.05X 2 2 -1.68X 3 2 -0.86X 4 2 0.035X 1 X 2 0.0025X < sub> 1 X 3 -0.45X 1 X 4 -1.39X 2 X 3 0.75X 2 X 4 -0.34X 3 X 4 optimal process conditions: reaction time (165.04 min), the reaction temperature (65.26 ° C), catalyst amount (9.87% (w / w)) and the molar ratio of methanol to oil 15.53:1. Under this condition, the theory of the fatty acid methyl ester content was 97.86%. Experiments by verifying actual fatty acid content of 97.86 ± 0.34%. After comparing the experimental values ??and model values, the average error of ± 0.34%. Therefore, using a central composite design optimization best the biodiesel synthesis conditions is accurate and reliable, optimal mathematical model fit. In order to evaluate the Chinese tallow the Azusa oil biodiesel quality, acid value, viscosity, cetane number and condensation point were measured and compared with our 0 # diesel.

Related Dissertations

  1. Study on the Preparation of Biodiesel from Fried Oil with Supercritical Methanol,TE667
  2. The Basic Research of Axial Flux Inductor Type High Temperature Superconducting Motor,TM37
  3. Research on Stability of Hierarchical Sattellite Network,TN927.23
  4. Query Processing and Optimization in Massive Multi-Database Integration,TP311.13
  5. Preparation of Epichlorohydrin from Crude Glycerol of Biodiesel By-product,TQ223.26
  6. Domestication of Acidithiobacillus Ferroxidans and Its Application to Bio-desulfuration of Coal,X701.3
  7. The Dynamic Performance Analysis of Oil Pumping Center and Structural Optimization of Improvement,TE933.1
  8. Finite Element Analysis and Optimization Design of a Tractor Cab,S219.02
  9. The Study of A Company Information Management Optimization,TP315
  10. Optimization of Local Structure and Analysis of Jetting Performance of Main Nozzle in an Air-Jet Loom,TS103.337.1
  11. Study of Simulation and Optimization of Storage Logitics System Based on Flexsim,TP391.9
  12. Catalytic Transfer Hydrogenation of Biodiesel in Aqueous Media,TE667
  13. Commercial banks' risk management competency model optimization,F832.2;F224
  14. GPRS / EGPRS network optimization,TN929.5
  15. Study of the Coal Washing Product Structure Optimization,TD94
  16. Research on Overburden Motion Laws and Support Optimization in Paste Backfilling Face of Daizhuang Coal Mine,TD355
  17. Research on the Decision-Making Theory of Mine Cooling System and the Technology of Centralized Chilled Water Cooling System,TD727
  18. The Analyzing of Terminal Service Innovation in Gansu Unicom,F626
  19. The Research on Compensation System of Shanxi BJ Real Estate Development Co., Ltd,F293.3
  20. The Optimization Research of Feedforward Neural Network Based on Genetic Algorithms,TP183
  21. The Research on Manipulator Trajectory Planning,TP242

CLC: > Industrial Technology > Energy and Power Engineering > Bio-energy and its utilization
© 2012 www.DissertationTopic.Net  Mobile