CAJ | 학술논문

本文用常温合成方法合成了不同硅铝比的Al-MCM-48,并研究了硅铝比不同对Al-MCM-48催化裂解高密度聚乙烯(HDPE)的影响.发现Al-MCM-48存在的催化裂解可以提高HDPE的转化率和液体收率;硅铝比的变化对转化率和液体收率有较明显的影响,转化率和液体收率随硅铝比的增加而增加,当硅铝比达到100时达最大值,然后液体收率和转化率开始逐步下降;液体产物中的烯烃的含量随硅铝比的增加而增加;重复实验表明Al-MCM-48具有较好的稳定性,不易结焦.
본문용상온합성방법합성료불동규려비적Al-MCM-48,병연구료규려비불동대Al-MCM-48최화렬해고밀도취을희(HDPE)적영향.발현Al-MCM-48존재적최화렬해가이제고HDPE적전화솔화액체수솔;규려비적변화대전화솔화액체수솔유교명현적영향,전화솔화액체수솔수규려비적증가이증가,당규려비체도100시체최대치,연후액체수솔화전화솔개시축보하강;액체산물중적희경적함량수규려비적증가이증가;중복실험표명Al-MCM-48구유교호적은정성,불역결초.
Al-MCM-48 catalysts with different Si/Al molar ratio were prepared by ambience temperature synthesis technology in this paper,and the effect of Si/Al molar ratio on the catalytic pyrolysis of HDPE over Al-MCM-48 catalysts was investigated.It was found that the presence of Al-MCM-48 catalysts increase the conversion of HDPE and the yield of liquid products.The variation of Si/Al molar ratio affected the yield of liquids and the conversion of materials,obviously.Initially,the liquids yield and conversion increased with increasing Si/Al molar ratio,reached the maximum values at a Si/Al ratio of 100,and then decreased gradually with further increase of Si/Al ratio.The content of olefins in the liquid products increased with increasing Si/Al molar ratio.Repeated experiments showed that the catalysts Al-MCM-48 exhibited good stability,thus the coke formation might be non-obvious.