dealumination

常见例句

• A new method of static hydrothermal dealumination has been developed.
  开发了一种静态水热脱铝的方法。
• 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脱铝对Y型沸石浸镧老化后的结构性质和催化裂化性能的影响。
• 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.
  由于在脱铝过程中发生水解、聚合、重排等反应,分子筛的孔结构将发生很大的变化,如形成空穴,甚至可导致骨架结构单元的崩塌,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;稀土超稳Y沸石中总的非骨架铝(N_(Al))_EF;随脱铝深度的增加而增加;仅只在REUSY-38的~(27)Al MAS NMR谱中观察到Al~(a+)非骨架铝的存在.
• 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.
  文章从Y型沸石的结构入手,分析了离子交换、焙烧和脱铝补硅等操作参数对PSRY分子筛质量的影响,优化了工艺条件,有效地提高了产品质量。
• Keywords dealumination;Y zeolite;benzene;1 dodecene;alkylation;
  脱铝;Y沸石;苯;1-十二烯;烷基化;
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