Abstract
Abstract In order to overcome one of the most important disadvantages of the partial oxidation of methane (POX) reaction, which deals with the use of pure oxygen as a gas feed, a mixed metal oxide (MWO 4 , M = Fe, Mn, Ni) is proposed as an oxygen carrier. The aim of this study is to evaluate the feasibility of these tungstates through the use of thermodynamic analyses and process simulations in an arrangement of two reactors. First reactor: CH 4 + MWO 4 = H 2 + CO + M + W; CH 4 + MWO 4 = H 2 + CO 2 + M + W and possibly CH 4 = C + 2H 2 . While in the second reactor: M + W + H 2 O = MWO 4 + H 2 ; C + H 2 O = H 2 + CO; C + 2H 2 O = 2H 2 + CO 2 . Then, the MWO 4 is recycled back to the first reactor to make a continuous process. Simulation results of this process with the different MWO 4 oxides are presented using Aspen Plus © .
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