The effects of CO and CO 2 on the rate of Na 2 CO 3 catalyzed boudouard reaction

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C + 02 = CO2 1 H2 +-~-O2 = H20

C + 2H2 = CH4 and to employ the popular Newton-Raphson method. We also showed an intuitive method to obtain ac, avoiding the restriction mentioned above. An advantage of the method proposed by Rao and Lee would be in formulation of the iteration, where it does not need to calculate the derivatives such as c3H/0H2. However, in exchange for the advantage, their method has brought mathematical ambiguity of the convergence, which results in ambiguity in selecting the convergence coefficients (u, v, w) and sometimes sluggish convergence. As suggested by Kellogg (Reference 6 above), the convergence coefficients should be set to be smaller values (

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