【摘要】 利用常压管式流动反应装置研究CO/H2/O2/Cl2的氧化过程以了解氯对CO氧化的抑制作用。实验中反应温度的范围是973～1273K,入口反应气体中氯原子和氢原子的物质的量之比[Cl]/[H]的范围是0到1。反应产物通过红外光谱仪在线检测。结果表明,CO的转化率随反应温度的升高而增大,随[Cl]/[H]的升高而减小。HCl的生成反应及HCl与OH的反应HCl+OH=Cl+H2O降低了反应体系中OH的浓度,导致CO转化率的下降。提高反应温度可减轻氯对CO氧化的抑制作用。更多还原

【Abstract】 The CO/H2/O2/Cl2 mixture oxidation process was studied in an atmospheric pressure tubular flow reactor to understand the chlorine inhibition on CO oxidation. The reaction temperature varied from 973 K to 1 273 K and the chlorine to hydrogen mole ratio of the inlet mixture changed from zero to unity. Species in the reaction product were measured on-site with FT-IR. The result show that CO conversion increases with the reaction temperature and decreases with increasing chlorine to hydrogen mole ratio of the inlet mixture. It is the HCl formation process and the reaction HCl+OH=Cl+H2O that decreases the OH concentration in the reaction zone and leads to low CO conversion. Increasing the reaction temperature can abate the inhibition effect of chlorine on CO oxidation.更多还原