Dynamic Behavior of Reverse Flow Reactor for Lean Methane Combustion  

Oleh:

Budhi, Yogi W ; Effendy, M. ; Bindar, Yazid ; Subagjo

Jenis: Article from Journal - ilmiah nasional - terakreditasi DIKTI
Dalam koleksi: Journal of Engineering and Technological Sciences vol. 46 no. 03 (2014), page 299-317.
Topik: fixed bed reactor; oxidation; modeling and simulation; dynamic behavior.
Fulltext: 880-2895-1-SM.pdf (1.21MB)

Isi artikel

he stability of reactor operation for catalytic oxidation of lean CH has been investigated through modeling and simulation, particularly the influence of switching time and heat extraction on reverse flow reactor (RFR) performance. A mathematical model of the RFR was developed, based on onedimensional pseudo-homogeneous model for mass and heat balances, incorporating heat loss through the reactor wall. The configuration of the RFR consisted of inert-catalyst-inert, with or without heat extraction that makes it possible to store the energy released by the exothermic reaction of CH oxidation. The objective of this study was to investigate the dynamic behavior of the RFR for lean methane oxidation and to find the optimum condition by exploring a stability analysis of the simple reactor. The optimum criteria were defined in terms of CH conversion, CH slip, and heat accumulation in the RFR. At a switching time of 100 s, the CH conversion reached the maximum value, while the CH slip attained its minimum value. The RFR could operate autothermally with positive heat accumulation, i.e. 0.02 J/s. The stability of the RFR in terms of heat accumulation was achieved at a switching time of 100 s.

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