DOI QR코드

DOI QR Code

Enhancement of Efficiency of Activated Carbon Impregnated Chitosan for Carbon Dioxide Adsorption

Patkool, Chaiwat;Chawakitchareon, Petchporn;Anuwattana, Rewadee

  • 투고 : 2014.05.31
  • 심사 : 2014.09.10
  • 발행 : 2014.09.30

초록

The effect of carbon dioxide ($CO_2$) on global warming is serious problem. The adsorption with solid sorbents is one of the most appropriate options. In this study, the most interesting adsorbent is granular activated carbon (GAC). It is suitable material for $CO_2$ adsorption because of its simple availability, many specific surface area, and low-cost material. Afterwards, GAC was impregnated with chitosan solution as impregnated granular activated carbon (CGAC) in order to improve the adsorption capacity of GAC. This research aims to compare the physical and chemical characteristics of GAC and CGAC. The experiment was carried out to evaluate the efficiency of $CO_2$ adsorption between GAC and CGAC. The results indicated that the iodine number of GAC and CGAC was 137.17 and 120.30 mg/g, respectively. The Brunauer-Emmett-Teller results (BET) of both GAC and CGAC show that specific surface area was 301.9 and $531.3m^2/g$, respectively; total pore volume was 0.16 and $0.29cm^3/g$, respectively; and mean diameter of pore was 2.18 and 2.15 nm, respectively. Finally, the $CO_2$ adsorption results of both GAC and CGAC in single column how the maximum adsorption capacity was 0.17 and 0.25 mol/kg, respectively; how degeneration time was 49.6 and 80.0 min, respectively; and how the highest efficiency of $CO_2$ adsorption was 91.92% and 91.19%, respectively.

키워드

Carbon dioxide adsorption;Chitosan;Global warming;Granular activated carbon

참고문헌

  1. Plaza MG, Gonzalez AS, Pevida C, Pis JJ, Rubiera F. Valorisation of spent coffee grounds as $CO_2$ adsorbents for postcombustion capture applications. Appl. Energy 2012;99:272-279. https://doi.org/10.1016/j.apenergy.2012.05.028
  2. Tantuan P. Effect of pressure and flow rate on carbon dioxide and nitrogen adsorption efficiency. In: 4th National Walailak Research Conference; 2012 June 21; Nakhon Si Thammarat, Thailand. p. 146-147.
  3. Lohasarn P. Enhancement of dyes adsorption efficiency on activated carbon from paper pulp sludge by chitosan coat and aeration [dissertation]. Bangkok: Chulalongkorn University; 2008.
  4. ASTM International. Standard test method for determination of iodine number of activated carbon. West Conshohocken: ASTM International; 2011. ASTM D4607-94.
  5. ASTM International. Test method for specific surface area of carbon or graphite. West Conshohocken: ASTM International; 2011. ASTM C 819-77.
  6. Maghsoodloo Sh, Noroozi B, Haghi AK, Sorial GA. Consequence of chitosan treating on the adsorption of humic acid by granular activated carbon. J. Hazard. Mater. 2011;191:380-387. https://doi.org/10.1016/j.jhazmat.2011.04.096
  7. Ngowsuwan C. Adsorption of basic dye and reactive dye by waste sludge [dissertation]. Bangkok: King Mongkut's University of Technology Thonburi; 2005.
  8. Huang CC, Shen SC. Adsorption of $CO_2$ on chitosan modified CMK-3 at ambient temperature. J. Taiwan Inst. Chem. Eng. 2013;40:89-94.
  9. Ma X, Wang X, Song C. "Molecular basket" sorbents for separation of CO(2) and H(2)S from various gas streams. J. Am. Chem. Soc. 2009;131:5777-5783. https://doi.org/10.1021/ja8074105
  10. Zhou L, Liu X, Li j, Wang N, Wang Z, Zhou Y. Synthesis of ordered mesoporous carbon molecular sieve and its adsorption capacity for $H_2$, $N_2$, $O_2$, $CH_4$ and $CO_2$. Chem. Phys. Lett. 2005;413:6-9. https://doi.org/10.1016/j.cplett.2005.07.048
  11. Xu X, Song C, Andresen JM, Miller BG, Scaroni AW. Preparation and characterization of novel $CO_2$ molecular basket adsorbents based on polymer-modified mesoporous molecular sieve MCM-41. Microporous Mesoporous Mater. 2003;62:29-45. https://doi.org/10.1016/S1387-1811(03)00388-3
  12. Lee SY, Park SJ. Carbon dioxide adsorption performance of ultramicroporous carbon derived from poly (vinylidene fluoride). J. Anal. Appl. Pyrolysis 2014;106:147-151. https://doi.org/10.1016/j.jaap.2014.01.012