한국산학기술학회논문지 (Journal of the Korea Academia-Industrial cooperation Society)

  • 제9권2호
  • /
  • Pages.487-492
  • /
  • 2008
  • /
  • 1975-4701(pISSN)
  • /
  • 2288-4688(eISSN)
한국산학기술학회 (The Korea Academia-Industrial cooperation Society)
권호 표지
DOI QR코드

DOI QR Code

유동층반응기에서 촉매를 이용한 메탄 열분해

Thermal Decompostion of Methane Using Catalyst in a Fluidized Bed Reactor

  • 발행 : 2008.04.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

본 논문은 유동층반응기에서 메탄 열분해에 의한 수소 생산과 탄소 생성에 대한 연구를 수행하였다. 환경에 대한 영향을 최소화한 상태에서 one-step에 의한 메탄의 전환반응을 메탄 분해촉매활성에 영향을 미치는 인자에 대하여 연구하였다. 측정된 압력요동특성치의 해석을 통하여 유동층 열분해촉매의 유동화현상을 측정하였으며, 유동화특성에 따른 메탄열분해능을 측정하였다. 메탄의 분해능는 생성되는 수소의 농도로부터 측정하였다. 유동층의 특성인 층내 입자 이동성, U-Umf, 마모, 비산유출, 유동화가스의 효율밀도에 따른 분해효율에 미치는 영향을 고찰하였다.

In this paper, Thermocatalytic decomposition of methane in a fluidized bed reactor (FBR) was studied. The technical approach is based on a single-step decomposition of methane over carbon catalyst in air/water vapor free environment. The factors affecting methane decompostion catalyst activity in methane decomposition reactions were examined. The fluidization phenomena in a gas-fluidized bed of catalyst was determined by the analysis of pressure fluctuation properties, and the results were confirmed with characteristics of methane decomposition. The effect of parameters on the H2 yield was examined for methane decompostion. The decompstion rate was affected by the fluidization quality such as mobility, U-Umf, carbon attrition, elutriation and effectiveness density of fluidization gas.

키워드

참고문헌

  1. Armor, J.N., The multiple roles for catalysis in the production of H2. Appl. Catal. A: General, 176, 159-176(1999). https://doi.org/10.1016/S0926-860X(98)00244-0
  2. Geldart, D., "The Effect of Particle Size and Size Distribution on the Behaviour of Gas-Fluidised Beds", Powder Tech., Vol. 6, 201-214(1972) https://doi.org/10.1016/0032-5910(72)83014-6
  3. Pis, J. J., et al., "Attrition of Coal Particles in a Fludized Bed", Powder Tech., Vol. 66, 41-46(1991) https://doi.org/10.1016/0032-5910(91)80079-X
  4. Arena, U., et al., "Evaluation of Attrition Rate Constants of Char Burning in Fluidized Beds by Means of laboratory-Scale Combustors", AIChE J., Vol. 32, 869-871(1986) https://doi.org/10.1002/aic.690320520
  5. Shanlou, P. A., liu, Z. and Yates, J.G., "Hydrodynamic Influences on Particle Breakage in Fluidized Bed", AIChE J., Vol. 45, 809-817(1991)
  6. Bendart, J. S. and Piersol, A. G. : "Random Data", John Wiley, New York(1971).
  7. Cooper, G. R. and McGillem, C. D. : "Probabilistic Methods of Signals and System Analysis", Holt, Rinehart and Winston Inc.(1971).
  8. Choudhary, T.V., Sivadinarayana, C., Chusuei, C.C., Klinghoffer, A. and Goodman, D.W., Hydrogen production via Catalytic Decomposition of Methane. J. Catal., 199, 9-18(2001). https://doi.org/10.1006/jcat.2000.3142
  9. Choudhary, V.R., Banerjee, S. and Rajput, A.M., Continuous Production of H2 at Low Temperature from Methane Decomposition over Ni-Containing Catalyst Followed by Gasification by Steam of the Carbon on the Catalyst in Two Parallel Reactors Operated in Cyclic Manner. J. Catal., 198, 136-141(2001). https://doi.org/10.1006/jcat.2000.3135
  10. Li, Y.D., Chen, J.L., Qin, Y.N. and Chang, L., Simultaneous Production of Hydrogen and Nanocarbon from Decomposition of Methane on a Nickel-Based Catalyst. Energy & Fuels, 14, 1188-1194(2000). https://doi.org/10.1021/ef0000781
  11. Muradov, N., $CO_2$-free Production of Hydrogen by Catalytic Pyrolysis of Hydrocarbon Fuel. Energy & Fuels, 12, 41-48(1998). https://doi.org/10.1021/ef9701145
  12. Shah, N., Panjala, D. and Huffman, G.P., Hydrogen Production by Catalytic Decomposition of Methane. Energy & Fuels, 15, 1528-1534(2001). https://doi.org/10.1021/ef0101964
  13. Cha, W. S., Hong, S. C., Oh, K. J. and Doh, D. S., "Minimum Fluidization Velocity and Fluidization Characteristics of Binary Particle System", HWAHAK KONGHAK, 30(3), 641-648(1992)