The molecular sieve effect of the kerogen's big molecule wet structure is a direct reason.
干酪根大分子结构的分子筛作用，是产生“蓝移”现象的直接原因；
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;
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 catalyst provided by the invention is obtained by the method that the surface acidity and the pore structure of a metal modified zeolite molecular sieve are decorated by siloxy group compound;
本发明所提供的催化剂由金属改性后的沸石分子筛再经硅氧烷基化合物修饰表面酸性和孔结构得到；
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