考察了Co-Mo/HZSM-5催化剂对甲烷芳构化反应的催化性能及催化剂上的积炭.采用碳数平衡计算法和TG法得出的平均积炭速率比较接近,在不同空速下,360 min内,催化剂上的积炭量都接近5%.对烧炭TG曲线的分析结果表明,积炭量约为5%时,积炭能分散于分子筛表面.在高空速下,积炭容易沉积在分子筛的外表面;在低空速下,积炭容易沉积在分子筛的内表面.在空速3000 ml/(g.h)下积炭时,其烧炭动力学过程符合一级反应过程,烧炭活化能为140.8 kJ/mol.
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