dealumination

常見例句

• A new method of static hydrothermal dealumination has been developed.
  開發(fā)了一種靜態(tài)水熱脫鋁的方法。
• A series of ultrastable Y zeolites with varies Si/Al mol ratio prepared by different dealumination methods have been investigated.
  研究了不同方法和不同程度脫鋁對Y型沸石浸鑭老化后的結構性質和催化裂化性能的影響。
• It is found that the formation of secondary mesopore is closely related to the dealumination method and the mechanism of filling aluminium vacancies by silicon.
  由于在脫鋁過程中發(fā)生水解、聚合、重排等反應,分子篩的孔結構將發(fā)生很大的變化,如形成空穴,甚至可導致骨架結構單元的崩塌,形成二次孔。
• For the four REUSY zeolites, the total extra-framework aluminums (N_(Al))_(EF) increase with the increase of depth of dealumination, the (N_(AI))_(EF) appeared as Al~(3+) are only observed in ~(27)Al MAS-NMR of REUSY-38 spectrum.
  其次;稀土超穩(wěn)Y沸石中總的非骨架鋁(N_(Al))_EF;隨脫鋁深度的增加而增加;僅只在REUSY-38的~(27)Al MAS NMR譜中觀察到Al~(a+)非骨架鋁的存在.
• In this paper,the influence of process-parameters of ion exchange,calcinations,dealumination and silicon reinsertion on the quality of PSRY was investigated from the view of Y zeolite structure.
  文章從Y型沸石的結構入手,分析了離子交換、焙燒和脫鋁補硅等操作參數(shù)對PSRY分子篩質量的影響,優(yōu)化了工藝條件,有效地提高了產品質量。
• Keywords dealumination;Y zeolite;benzene;1 dodecene;alkylation;
  脫鋁;Y沸石;苯;1-十二烯;烷基化;
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