DOI QR코드

DOI QR Code

Absorption of Methyl Mercaptan into Aqueous Diethanolamine Solutions

Diethanolamine 수용액에서의 Methyl Mercaptan의 흡수

  • Park Moon-Ki (Department of Health Environment Daegu Haany University)
  • 박문기 (대구한의대학교 보건환경학과)
  • Published : 2005.12.01

Abstract

The kinetics of the reaction of methyl mercaptan into aqueous diethanolamine were studied over a range in temperature ($20^\~60{\circ}C$) and amine concentrations (0-40 $wt\%$) using a wetted-sphere absorber. The physicochemical properties needed to interpret the data are the solubility and diffusivity of methyl mercaptan in the aqueous diethanolamine solution. The density and the viscosity were obtained and correlated in the experimental range. The Wilke Chang equation was applied to estimate the diffusion coefficient. The enhancement factor was found to be high temperature is below than low temperature. It means the absorption rate with chemical reaction is lower than the physical absorption rate.

Keywords

References

  1. Kohl, A. L., and F. C. Riesenfeid, 1979, Gas purification, 3rd Ed, Gulf publishing company Houston
  2. Li, M. H., and B. C. Chang, 1994, Solubilities of carbon dioxide in water + monoethanol amine + 2-amine-2-methyl-1-propanol, J. Chen. Eng. Data., 39, 448-452 https://doi.org/10.1021/je00015a010
  3. Littel, R. J., G. F. Versteeg and W. P. M. Swaaij, 1992, Solubility and diffusivity data for the absorption of COS, $CO_{2}$, $N_{2}O$ in amine solutions, J. Chen. Eng. Data, 37, 49-55 https://doi.org/10.1021/je00005a017
  4. Danckwert, P. V., 1970, Gas-Liquid Reaction, McGrow-Hill, New York
  5. Sharma, M. M., 1965, Kinetics of reaction of carbonyl sulfide and carbon dioxide with amines and catalysis by Bronsted bases of the hydrolysis of COS, Trans. Faraday. Soc., 61, 681-688 https://doi.org/10.1039/tf9656100681
  6. Satori G. and D. W. Savage, 1983, Sterically Hindered Amines for $CO_{2}$ Removal from gases, Ind. Eng. Chem. Fundam., 22, 239 https://doi.org/10.1021/i100010a016
  7. Chakraborty, A. K., G. Astrarita and K. B. Bishoff, 1986, $CO_{2}$ Absorption in aquous solutions of hindered amiines, Chem. Eng. Sci., 41, 997 https://doi.org/10.1016/0009-2509(86)87185-8
  8. Zioudas, A. P. and Z. Dadach, 1986, Absorption rates of carbon dioxide and hydrogen sulfide in sterically hindered amines, Chem. Eng. Sci., 41, 409-415 https://doi.org/10.1016/0009-2509(86)87021-X
  9. Park, M. Ki. and O. C. Sandall, 2001, Solubility of carbon dioxide and nitrous oxide in 50 mass % methlydiethanloamine, J. Chen. 38 Eng. Data, 46, 166-168 https://doi.org/10.1021/je000190t
  10. Astarita, G., D. V. Savage and A. Bisio, 1983, Gas Treating with Chemicl Solvents, John Wiley & Sons, New York
  11. Clarke, J. K. A., 1964, Kinetics of absorption of carbon dioxide in monethanolamine solutions at short contact times I. & E C. Fund, 3, 239-245 https://doi.org/10.1021/i160011a012
  12. Al-Ghawas, H. A., G. R. Ibanez and O. C. Sandall, 1989, Absorption of carbonyl sulfide in aqueous methyldietjnolamine, Chem. Eng. Sci., 44, 631-639 https://doi.org/10.1016/0009-2509(89)85039-0
  13. Rinker, E. B. and O. C. Sandall, 1996, Solubility of nitrous oxide in aqueous solutions of methyldiethanolamine, diethanolamine and mixtures of methlydiethanolamine and diethanolamine, Chen. Eng., Commun., 144, 85-94 https://doi.org/10.1080/00986449608936447
  14. Rinker, E. B., S. S. Ashour and O. C. Sandall, 1995, Kinetics and modeling of carbon dioxide absorption into aqueous solutions of methyl-diethanolamine, Chen. Eng. Sci., 50, 755-768 https://doi.org/10.1016/0009-2509(94)00444-V
  15. Ashour, S. S., E. B. Rinker and O. C. Sandall, 1997, Correlations for estimating the diffusivities of diethanolamine and N-methyl-diethanolamine and the solution densities and viscosities, Chen. Eng. Commun., 161, 15-24 https://doi.org/10.1080/00986449708936617
  16. Littel, R. J., G. F. Versteeg and W. P. M. Swaaij, 1992, Kinetics of COS with primary and secondary amines in aqueous solution, AIChE. J., 38, 244-251 https://doi.org/10.1002/aic.690380210
  17. Reid, R. C., J. M. Prausnitz and B. E. Poling 1986, The Properties of Gases and Liquids McGrow Hill, N. Y.