Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
권호 표지
DOI QR코드

DOI QR Code

Homogeneous and Catalytic Methanol Synthesis by Partial Oxidation of Methane

메탄의 균일 및 접촉부분산화에 의한 메탄올 합성

  • Hahm, Hyun-Sik (Department of Chemical Engineering, Myongji University) ;
  • Choi, Woo-Jin (Department of Chemical Engineering, Myongji University) ;
  • Hwang, Jae-Young (Department of Chemical Engineering, Myongji University) ;
  • Ahn, Sung-Hwan (Department of Chemical Engineering, Myongji University) ;
  • Kim, Myung-Soo (Department of Chemical Engineering, Myongji University) ;
  • Park, Hong-Soo (Department of Chemical Engineering, Myongji University)
  • 함현식 (명지대학교 공과대학 화학공학과) ;
  • 최우진 (명지대학교 공과대학 화학공학과) ;
  • 황제영 (명지대학교 공과대학 화학공학과) ;
  • 안성환 (명지대학교 공과대학 화학공학과) ;
  • 김명수 (명지대학교 공과대학 화학공학과) ;
  • 박홍수 (명지대학교 공과대학 화학공학과)
  • Published : 2005.03.31
Download PDF
⟨ Previous Next ⟩

Abstract

Methanol was synthesized by homogeneous and catalytic reactions of partial oxidation of methane. The effect of pressure, temperature and oxygen concentration on methanol synthesis was investigated. The catalyst used was Bi-Cs-Mg-Cu-Mo mixed oxide. The partial oxidation reaction was carried out in a fixed bed reactor at 20${\sim}$46 bar and $450{\sim}480^{\circ}C$ and oxygen concentration of 5.3${\sim}$7.7mol%. The results were compared with results of homogeneous reaction performed at the same conditions. Methane conversions of the homogeneous and catalytic reactions increased with temperature. Methanol selectivity of the homogeneous reaction decreased with increasing temperature. However, the methanol selectivity of catalytic reaction increased with temperature. For both homogeneous and catalytic reactions, the methane conversions were around 5%. This may be due to the low oxygen concentration. Methanol selectivity of the catalytic reaction was higher than that of homogeneous one.

Keywords

References

  1. J. W. Geerts and J. H. Hoebink, Methanol from Natural Gas, Catalysis Today, 6, 613 (1990)
  2. P. S. Yarlagadda, L. A. Morton, N. R. Hunter, and H. D. Gesser, Direct Conversion of Methane to Methanol in a Flow Reactor, lnd. Eng. Chem. Res., 27, 252 (1988) https://doi.org/10.1021/ie00078a017
  3. N. R. Hunter, H. D. Gesser, L. A. Morton, and P. S. Yarlagadda, Methanol Formation at High Pressure by The Catalyzed Oxidation of Natural Gas and by The Sensitized Oxidation of Methane, Appl. Catal., 57, 45 (1990)
  4. D. W. Rytz and A. Baiker, Partial Oxidation of Methane to Methanol in a Flow Reactor at Elevated Pressure, lnd. Eng. Chem. Res., 30, 2287 (1991)
  5. J. W. Chun and R. G. Anthony, Catalytic Oxidation of Methane to Methanol, lnd. Eng. Chem. Res., 32, 259 (1993)
  6. M. M. Khan and G. A. Somorjai, A Kinetic Study of Partial Oxidation of Methane With Nitrous Oxide on a Molybdena-Silica Catalyst, J. Catal., 91, 263 (1985)
  7. R. Lodeng and O. A. Lindvag, Experimental and Modeling Study of The Selective Homogeneous Gas Phase Oxidation of Methane to Methanol, lnd. Eng. Chem. Res., 34, 1044 (1995)
  8. G. J. Hutchings and S. H. Taylor, Designing Oxidation Catalysts, Catalysis Today, 49, 105 (1990)
  9. Q. Liu. Improved Methanol Yield from Methane Oxidation in a Non-Isothermal Reactor, Fuel, 75, 1748 (1996)
  10. G. A. Foulds and B. F. Gray, Homogeneous Gas-Phase Partial Oxidation of Methane to Methanol and Formaldehyde, Fuel Processing Technology, 42, 129 (1995)
  11. J. Zaman, Oxidative Processes in Natural Gas Conversion, Fuel Processing Technology, 58, 61 (1999)
  12. N. R. Foster, Direct Catalytic Oxidation of Methane to Methanol, Appl, Catal., 19, 11 (1985)
  13. W. J. Choi, S. H. Ahn, Y. J. Jang, K. S. Kim, M. S. Kim, H. S. Park, and H. S. Hahm, Preparation of Iexline Compound Using Trifluoromethane, J. Kor. Oil Chem. Soc., 21(4), 359 (2004)