The influence of various factors on the stability of operation of heterogeneous catalysts for decomposition of spent sulfuric acid is analyzed.The stability of operation of a catalyst [1] in decomposition of spent sulfuric acid (SSA) containing organic admixtures is strongly affected by several factors, including the mechanical action associated with the mode of the boiling bed and a long exposure to a high temperature. The first factor can promote destruction of the support and removal of active components. The second can diminish the catalytic activity through a transformation of the porous structure that leads to a decrease in the specific surface area. This study is devoted to examination and analysis of the effect of these factors on the catalyst.
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