2-3-5 高圧メタン酸化的改質用Ni/α-Al_2O_3触媒におけるフラクタル次元から見たK添加効果(2-3 科学1,Session 2 天然ガス・メタンハイドレート等,研究発表)

概要

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K-Ni/α-Al_2O_3 catalyst was optimized to attain high selectivity for high-pressure oxidative reforming of methane as 1.3 wt.%K-14 wt.%Ni on α-Al_2O_3 calcined at 1195℃. Geometric effect of K addition was proposed as (i) K addition modified the lattice constant of NiO first, (ii) it then induced the change of surface morphology of NiO as indexed by fractal dimension, (iii) finally the morphology change resulted in CO selectivity promotion.
2009-07-30