【摘要】 ＭＣＭ－４１是１９９２年由Ｍｏｂｉｌ公司首次合成，具有可调的规整孔道结构，孔径大小为１．６～１０ｎｍ的六方中孔分子筛［１，２］，β－沸石是具有三维十二元环孔道，一条线性通道孔径为０．５７ｎｍ×０．７５ｎｍ，另一条由两种线性通道相交形成的弯曲通道，孔径...更多还原

【Abstract】 MCM\|41\|\|zeolite, a new type of molecular sieve with \%meso\%\|microporous composite structure was synthesized hydrothermally by using cetyltrimethylammonium bromide and tetraethylammonium hydroxide as the template. The structure and property of the molecular sieve were studied by means of XRD, SEM, DTG, FTIR and probe reaction teachniques. The results show that the composite molecular sieve contains stable hexagonal mesoporous structure and the microporous structure of \|zeolite. It appears in globular particles with loose surface and the results of DTG and FTIR exhibit that the \%meso\%\|microporous composite molecular sieve is different from the mechanical mixture of MCM\|41 and \|zeolites. Compared with the mechanical mixture of MCM\|41 and \|zeolites, MCM\|41\|\|zeolite has a much higher hydrocracking activity for n\|heptane.更多还原