稀土分子筛

含铈稀土沸石分子筛对甲烷的活化性能&原位FT－IR研究

Study on the Activation of Methane Adsorbed on Zeolite CeH-Beta by in situ FT-IR Spectra

本文利用结构稳定性低而离子交换能力高的13X沸石通过固相媒介-原位法合成了高稀土β分子筛。

This paper took advantage of low structure stability of 13X zeolite and prepared a high rare-earth load rare earth β zeolite by in-situ method , which was featured by the medium of rare earth exchanged 13X zeolite .

固相媒介-原位法合成高稀土β分子筛及其催化裂化性能

High Load Rare-earth β Zeolite Prepared by Solid Medium-In-Situ Synthesis Method and Its Catalytic Cracking Performance

低稀土超稳分子筛制备过程交换降钠工艺的筛选

Selection of Ion Exchange and De-Sodium Process in the Preparation of Low Rare Earth and Ultra-Stable Zeolite

金属组元稀土使分子筛的强酸量增加了25.2%～38.5%，弱酸量略有增加。

The strong acid amounts were increased by 25.2 % - 38.8 % and the weak acid amounts were slightly increased by rare earth introduction .

这种原位合成的高稀土β分子筛不仅由于其高稀土含量，也由于其改进的孔结构和酸度而拓展了其催化应用范围，例如它在催化裂化过程就表现了更好的催化性能。

The high rare-earth load , good pore texture and high acidity extent its application in catalysis , and exhibited the enhancement of catalysis performance on fluid catalytic cracking process .

通过控制稀土材料、分子筛微观结构，使DOC以较低贵金属用量达到具有良好的低温活性。

Controlling micro-structure of rate-earth mixed oxide and zeolite makes WFEC DOC possess excellent low temperature light-off performance with quite low PGM loading .

在螺旋管反应装置上研究了混合氯化稀土与NaY分子筛在水溶液中的加压连续离子交换反应动力学。

The continuous ion-exchange reaction kinetics between NaY zeolite and RECl_3 solution under pressure in a helical tubular coil apparatus has been investigated .

RFCC催化剂的新品种也在不断推出，我国的稀土Y型分子筛、超稳Y型分子筛和稀土1氢Y分子筛催化裂化催化剂的品种在不断更新换代。

New varieties Y rare earth molecular sieve catalyst , super-steady Y molecular sieve catalyst and hydrogen Y rare earth molecular sieve catalyst were constantly updated in China .

研究了稀土离子与NaY分子筛滤饼柱的交换过程。

The exchange process of NaY zeolite with rare earth ion through a zeolite cake column was studied .

文章分别从稀土氧化物、稀土金属间化合物及稀土分子筛3个方面对稀土在催化中的应用研究做了综述，并简要地分析了稀土催化剂的发展方向。

The research progress of the application of rare earth in catalysts , including rare earth oxides , rare earth intermetallic compound and rare earth containing zeolite is reviewed with 42 references . The future of the application of rare earth in catalysts is also discussed .