performance comparison among different powdered zeolites for removing low-concentration ammonia nitrogen from water

study of cracking catalysts of mixed zeolites modified by ag and la to endothermic hydrocarbon fuels

银、镧改性混合型吸热碳氢燃料裂解分子筛催化剂的研究

application of the adsorption potential theory to hydrogen adsorption on zeolites above critical temperature

应用吸附势理论研究氢在沸石上的超临界吸附

the experimental study of removing low concentration of ammonia nitrogen from the water source by zeolites

沸石去除水源中低浓度氨氮的实验研究

laboratory study of deep treatment of petroleum wastewater using modified zeolites

改性沸石深度处理石油污水的实验研究

mechanism of acetylene adsorption on zsm-5 zeolites and characteristics of the surface species

乙炔在ZSM-5分子筛上的吸附机制及吸附态性质

the result showed that the liquid yield with zxm-19 zeolites catalyst is higher.

试验结果表明，ZXM-19型烷基化催化剂有较高的液体产品收率。

the degradation was carried out using diluted forms of zeolites zsm-5, usy and mordenite (mord) using a fluidized bed reactor (fbr).

的退化进行了使用稀释形式的分子筛ZSM-5分子筛，超稳Y和丝光沸石（MORD）采用流化床反应器（快堆）。

the development prospects for modification of usy zeolites were put out.

并对以后USY分子筛的改性进行了展望。

hzsm-5, hm and hy zeolites were used as catalysts for vapor-phase esterification of acetic acid with ethanol in fix a-bed reactor.

本文用HZSM-5，HM及HY沸石作催化剂，在固定床反应器内，对醋酸和乙醇的气相酯化反应进行了研究。

the influence reaction time on crystal structure of the zeolites was investigated.

考察了酸的加入量、反应温度和反应时间对分子筛晶体结构的影响。

the hydroxylation of benzene and phenol with h2o2 was performed using various ion exchanged y zeolites.

通过Y型沸石不同的离子交换，可以通过与过氧化氢（H2O2）反应进行苯和苯酚的羟化。

zeolites are minerals with ion-exchange properties.

沸石是一种具有离子交换性质的矿物。

typical minerals in these facies include the zeolites, albite, and quartz.

在这些条件下出现的典型矿物有沸石、钠长石、石英和葡萄石。

zsm-5 zeolites were synthesized in-situ on kaolin microspheres by hydrothermal crystallization method from amine-free system.

无胺体系中，采用水热法在焙烧高岭土微球上原位晶化合成了ZSM-5分子筛。

composites of micro-mesoporous zeolites is a kind of new catalytic material greatly concerned by many such researchers.

微孔—介孔复合分子筛是近年来沸石研究人员颇感兴趣的一类新催化材料。

zeolites zsm-5 and y can adsorb the polycyclic aromatic hydrocarbons and nitrosamines in gaseous phase, and reduce the pollution of smoking.

使用ZSM-5和Y沸石吸附气相中的多环芳烃和亚硝胺，能减少吸烟对于环境的污染。

zeolites, clay minerals, and asbestos are important nonmetallic minerals.

沸石、粘土矿物及石棉都是重要的非金属矿物。

modified on the usy zeolites, modulated its structure and the surface of acidity, in order to improve its performance.

对USY分子筛进行改性，调变其结构和表面酸性，可以达到改善其催化性能的目的。

calculations on the zeolites acidity and structures of adsorbed species also give results in agreement with those from experiments.

沸石分子筛中酸性和吸附态结构的计算，也得到了与实验相一致的结果。

the amount of water added during the preparation influences the amphiphilic properties of the zeolites.

水的添加量对沸石催化剂的两亲性有显著影响。