Studies of the kinetics of CH4 decomposition to Fe3C on the promoted iron catalysts

• Autorzy: Arabczyk W. , Narkiewicz U. , Konicki W. , Grzmil B.
• Języki publikacji: EN

Abstrakty

EN

The decomposition of methane on the doubly- (A1,O,, CaO) and triply- (K,O, A1,O,, CaO) promoted iron catalyst has been investigated using the thermobalance (considered as an differential reactor). The process of decomposition results in the formation of iron carbide and carbon deposit subsequently. The process was carried out under atmospheric pressure in the temperature range of 500 - 600°C. The rate of Fe3C formation in the kinetic region of the reaction was written using the following expression: r = k-pCH . The apparent activation energy of methane decomposition to Fe,C is equal to 158 kJ/mol for both doubly and triply promoted iron catalysts. The pre-exponential factor k() equals to 1.77-10* and 5.71 105 for doubly and triply promoted catalyst, respectively.

Słowa kluczowe

EN

methane; iron catalyst; iron carbide

PL

metan; katalizator żelazowy; węglik żelaza

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2002
• Tom: Vol. 4, nr 3
• Strony: 1--4
• Opis fizyczny: Bibliogr. 22 poz., rys., tab.

Twórcy

autor

Arabczyk W.

• Technical University of Szczecin, Institute of Chemical and Environment Engineering, ul. Pulaskiego 10, 70-322 Szczecin, Poland

autor

Narkiewicz U.

• Technical University of Szczecin, Institute of Chemical and Environment Engineering, ul. Pulaskiego 10, 70-322 Szczecin, Poland

autor

Konicki W.

• Technical University of Szczecin, Institute of Chemical and Environment Engineering, ul. Pulaskiego 10, 70-322 Szczecin, Poland

autor

Grzmil B.

• Technical University of Szczecin, Institute of Chemical and Environment Engineering, ul. Pulaskiego 10, 70-322 Szczecin, Poland

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