结果表明，采用在空气中直接焙烧的方法脱除模板剂在一定的程度上破坏了MCM-41分子筛的结构完整性，骨架脱铝现象最明显；
The result showed that direct calcination of MCM-41 samples in the presence of air for template removal caused collapse of the molecular sieve structure and dealumination of the framework was obvious;
尽管惰性气氛和还原气氛下焙烧样品有利于四方相的稳定，但样品暴露于空气中后，表面四方相较易转变为单斜相。
But the tetragonal phase in the surface region transforms easily to monoclinic phase when the samples are exposed to air.
在实际焙烧过程中，为了减少高温烟气对电极的氧化，建议燃烧的空气过剩系数控制在1以下；
In the real bake-out process, it suggests that the air excess coefficient of burning should be controlled within 1 in order to avoid electrode being oxidized by high temperature fume;
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