1) shape selective
择形
1.
The results showed that the shape selective effect of the faujasite is obvious, and the thermodynamic balance exists between 2,6 DTBN and 2,7 DTBN.
结果表明 ,八面沸石对该反应过程有较好的择形催化作用 ,两种异构化产物 (2 ,6 二叔丁基萘和 2 ,7 二叔丁基萘 )之间存在着热力学平衡 ,即两种异构化产物可在酸性中心位上相互转化 。
2.
It can be found from the results that the amine product distribution was controlled by the NH 3 preadsorption and by the shape selective desorption of MMA,DMA and TMA.
结果表明 :胺化产物分布受氨NH3 的预吸附和甲胺 (MMA)、二甲胺 (DMA)及三甲胺 (TMA)的择形脱附控制 。
2) shape selectivity
择形选择性
1.
SAPO is a novel class of catalytic materials which exhibit excellent shape selectivity, thermal stability and hydrothermal stability,which can catalyze hydrocarbon reactions.
8mm,骨架呈负电性,具有可交换的阳离子,被广泛用作吸附剂、催化剂和催化剂载体,是一种具有优异择形选择性、热稳定性和湿热稳定性的新型催化材料。
3) size selective separation
择形效应
5) shape-selectivity
择形性
1.
Molecular simulation methods were applied to investigate the diffusion characteristics of xylene isomers in various zeolites,such as MFI,MEL and CAN zeolites,and to rank the predicted shape-selectivity of potential zeolite catalysts for toluene disproportionation.
MFI分子筛对于p-xylene有很好的选择性,不论是直孔还是弯孔,均有此特性,但弯孔中的扩散能垒较直孔中高,因此吸附质分子更倾向于在MFI分子筛直孔中进行扩散；MEL分子筛的孔径略小于MFI分子筛,各吸附质的扩散能垒较在MFI分子筛孔道中高,二甲苯各同分异构体中p-xylene的扩散能垒远小于m-xylene和o-xylene,因此,MEL分子筛也表现出对于p-xylene的选择性；在CAN分子筛的孔道中,二甲苯各种同分异构体的扩散能垒按p-xylene＜m-xylene＜o-xylene的顺序依次升高,但由于数值整体偏低,所以CAN分子筛不能够表现出对于p-xylene的择形性。
2.
These two methods adjust the shape-selectivity by modifying the outside surface of zeolites.
两种方法都是通过分子筛外表面改性以实现择形性调变的。
补充资料：择嘴
1.谓饮食挑剔。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条