Abstract
To study the effect of the operation parameters on the de-NOx catalysts prepared by Erdos semi-cokes, the vapor content, O <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> content, reaction temperature, space velocity, the concentrations of NO and SO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> were investigated to find the optimum operating conditions. The addictives loaded on the catalysts could reduce the vapor's negative effect. The optimal reaction condition is vapor 4.2%, reaction temperature 70°C, space velocity 1000h <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-1</sup> , O <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> 10%, NO below 1000ppm. T <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">B</sub> was 22h in the optimal condition when less than 70% conversion as the breakthrough point. Because of the suppression of NO oxidation by SO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> , the desulfurization process had to place in front of the process of catalytic oxidation de-NO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">x</sub> .
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