Dissertation > Excellent graduate degree dissertation topics show

Preparation and adsorption properties of activated carbon Camellia oleifera seed cake base

Author: TianKeQi
Tutor: LiFenFang
School: Central South University
Course: Organic Chemistry
Keywords: Camellia oleifera chemical activation characterization adsorption methyl orange vitamin B12
CLC: X792
Type: Master's thesis
Year: 2010
Downloads: 142
Quote: 1
Read: Download Dissertation

Abstract


According to statistics, there are about 55 million hectares of Camellia oleifera in China and more than 60 million tons of Camellia oleifera seed are producted annual. The by-product which are left after oil extraction of is about 500,000 tons per year.The Camellia oleifera have high economic value, but the economic benefits are very low. Against to the utilization of the Camellia oleifera, we choose cake of camellia oleifera seed as the raw material of making actived carbon.A study on using cake of camellia oleifera seed which saponins have been taken out as raw materials to produce porous carbon materials was conducted, by controlling the conditions of single-factor (activator, activator ratio,activation temperature, activation time and particle size of raw materials).The adsorption value of iodine standard solution, methylene blue solution and the vitamin B12 solution was determinated. Considering the experimental conditions on the carbon yield and the law of adsorption properties, the study have explored the optimal process conditions of preparation carbon materials by different activator. Experimental results:select ZnCl2 as the activator,the best condition is the raw material particle size 20 to 60 mesh, activator ratio 1.5,activation temperature 700℃,activation time 60 min. Select Fe(NO3)3 as the activator,the best condition is the raw material particle size 60 to 200 mesh, activator ratio 0.2,activation temperature 700℃,activation time 90 min.The Infrared spectra show two carbon material surface functional groups is similar. The pore structure of ZnCl2 activated carbon is regular. The carbon mateial presented a BET surface area of 1177.96 m2/g, pore volume of 0.76 cm3/g and average pore size 2.58 nm. The pore structure of Fe(NO3)3 activated carbon is irregular. The carbon material presented a BET surface area of 532.69 m2/g, pore volume of 0.33 cm3/g and average pore size 2.45 nm.Studies have carried out for adsorption wasterwater containing methyl orange and vitamin B12 using the actived carbons activated by ZnCl2, and the effects of shaking time, the activated carbon dosage, pH, temperature and the initial concentration are well studied to abtain the optimal process parameters. The thermodynamics parameters of the adsorption process are calculated by the van’t Hoff equation, the higher the temperature is, the more adsorption capability the carbon can achieve.We use Langmuir and Freundlich isotherms at different temperature to analyze the equilibrium data, and find out that the Langmuir isotherms have a higher correlation.The experimental results were analyzed by pseudo-second-order kinetics model, correlation is higher than 0.999. Both of the adsorption rate of methyl orange and vitamin B12 are controlled by fim diffusion.

Related Dissertations

  1. Density Functional Theory Study of Dimethyl Ether Adsorption on the Low-Index Pt Surface,O485
  2. Preparation of Based on the Phenolic Resin of Activated Carbon and Adsorption-Photopcatalytical Character of Supported TiO2,TQ424.19
  3. Competitive Adsorption of Phenolic/Ethanol onto Silica Fiber Effected by Ultrasound in RTM Process,TB332
  4. The convergence of mathematics teaching in primary and secondary schools under the new curriculum with the problem representation,G633.6
  5. Studies on Synthesis, Characterization and Properties of Fe-V Co-doped TiO2 Catalyst,O614.411
  6. Establishment of ELISA for Detecting Cd-MT of Pteria Penguin and Preliminary Study of ELISA-kit,X835
  7. Numerical Study on Phosphorus Distribution in Water Environment of the Three Gorges Reservoir,X832
  8. ( Hydroxy) Iron Oxide and the removal of arsenic in drinking water,O614.811
  9. Under microaerobic conditions closed calcium carbide furnace exhaust COS gas adsorption purification,X781
  10. Ion Exchange Removal of Hexavalent Selenium in Raw Water,X703
  11. Characterization of Corn Lectin and Application to Screen of Growth-promoting Bacteria from Corn Rhizosphere,S513
  12. Study on the Chimisorption Removal of FCC Gasoline Sulfur Compound,TE624.55
  13. Preparationandapplication of Pan-Based Amphoteric Ion Exchange Fiber,TQ342.31
  14. Study on the Preparation of Medical Grade Glycerol from the By-product of Jatropha Biodiesel,TQ223.163
  15. Experiment Study of the Biogas Purification Process by Zeolite Filling Washing,TQ221.11
  16. Study on the Synthesis and Adsorption Behaviour of Chitosan Derivative,TS254.9
  17. Preparation of Activated Carbon from Tobacco Stems and Application for Low Concentration Phosphine Adsorption,X712
  18. Health-based and Ecological Risk Assessment of Contaminated Sites,X820.4
  19. Preliminary Research on Characterization of Thermophilic Protease Pasey and Helicase Htc16,Q814
  20. Cloning and Expression of Xylanase Gene from Thermobifida Halotolerans YIM 90462~T,Q78
  21. Adsorption Effects of Phosphate and Chromium from Aqueous Solution by Adsorption Using LDH and Mg/Fe/Al Modified Montmorillonites,X703

CLC: > Environmental science, safety science > Processing and comprehensive utilization of waste > Light industrial waste disposal and comprehensive utilization > Food Industry
© 2012 www.DissertationTopic.Net  Mobile