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| 1 | 高岭土原位晶化合成Y型分子筛的研究进展显示文摘以原位晶化法合成的含足量NaY分子筛的微球(20~150μm)是一种用于制备先进催化裂化催化剂极为重要的'微球型前驱体'。总结了原位晶化工艺、导向剂组成和制备方法、晶化体系组成等对原位晶化'微球型前驱体'性能的影响,介绍了近期原位晶化技术的研究进展,并结合实验室近期研究结果,探讨了原位晶化法制备'微球型前驱体'存在的问题及发展前景。 | 易辉华 张永明 姚伯元 | 2009 | 精细石油化工2009，26，1： | 11 |
| 2 | 导向剂加入方式对Y型沸石合成的影响显示文摘以煤系高岭土为原料,采用液态补硅手段调节体系SiO2/Al2O3、导向剂两步加入法合成了Y型沸石。考察了导向剂不同加入方式对Y型沸石合成的影响。采用合理的导向剂两步加入法,特别是通过控制导向剂第二步加入的时间,可明显缩短Y型沸石的晶化时间,并有效地减少P型沸石的生成。 | 田震 解丽丽 陈彪 袁昊 李庆华 | 2008 | 非金属矿2008，31，1： | 8 |
| 3 | Influence of synthesis parameters on the crystallinity and Si/Al ratio of NaY zeolite synthesized from kaolin显示文摘Well-crystallized high-silica NaY zeolites (Si/Al>2.5) were prepared from a reaction mixture consisting of metakaolin, sodium silicate solution and seed solution via optimization of the mixture composition and reaction conditions. The transformation from kaolin to high-silica NaY zeolite was confirmed by XRD, SEM and IR techniques. Subsequently, the influence of synthesis parameters, i.e. initial SiO 2 /Al 2 O 3 , initial Na 2 O/SiO 2 , initial H 2 O/SiO 2 , aging time of the seed solution, crystallization temperature and crystallization time, on the NaY growth was investigated in terms of crystallinity and Si/Al ratio. The results showed that the effects of initial SiO 2 /Al 2 O 3 , initial Na 2 O/SiO 2 and initial H 2 O/ SiO 2 on the crystallinity and Si/Al ratio of NaY zeolite are similar to those observed in the conventional syntheses of NaY zeolites only using sodium silicate solution as silicon source. However, due to the use of metakaolin as the main silicon and aluminum sources in the present study, a long crystallization induction period of 20 h was achieved, which can be attributed to the dissolution of metakaolin. In addition, different from the conventional syntheses of zeolite NaY, pure NaY zeolites (i.e. without NaP zeolite impurity) were still obtained even at 120 °C because of the use of a large quantity of seed solution (23 wt%) in the reaction mixture. As the aging time of the seed solution increased from 3.5 h to 22 h, the relative crystallinity of the NaY zeolite first increased sharply and then reached a plateau, while the Si/Al ratio first increased rapidly up to a maximum value of 2.75 corresponding to an aging time of 6.5 h, and then decreased sharply with the aging time. | Li Qiang Zhang Ying Cao Zhijun Gao Wei Cui Lishan | 2010 | Petroleum Science2010，7，3： | 6 |
| 4 | Adsorption Thermodynamics and Diffusion Kinetics of PX over Na Y Zeolite Synthesized by In-Situ Crystallization from Kaolin Microsphere显示文摘Para-xylene was chosen as the probe molecule to study adsorption thermodynamics and diffusion kinetics on NaY zeolite and composite structured NaY zeolite synthesized by in-situ crystallization from kaolin microsphere(designated as Na Y/kaolin composites) separately, using a high precision intelligent gravimetric analyzer(IGA). The adsorption isotherms showed normal Langmuir type-Ⅰ behaviors. The increased adsorption heat with an increasing p-xylene coverage supported a mechanism of phase transition, diffusion and re-arrangement of p-xylene molecules during the adsorption process. The rearrangement seemed to be most pronounced at an adsorption loading of 2.13 and 2.29 mmol/g for Na Y zeolite and Na Y/kaolin composites respectively. Compared with Na Y zeolite, a 2—3 times higher in the diffusion coefficient of p-xylene was observed on Na Y/kaolin composites when the pressure was more than 50 Pa. Temperature-programmed desorption(TPD) of p-xylene on two samples from room temperature to 450 ℃ at a special loading has also been investigated by IGA. Results showed only single desorption peak appeared for Na Y zeolite, indicating that adsorption can only occur in the super-cage structure. Comparably, there were two different peaks for in-situ synthesized Na Y zeolite, corresponding to the two thermo desorption processes in both super-cage structure and the channels provided by kaolin, respectively.Key words: | Zhao Hua Song Lijuan Qin Yucai Duan Linhai Sun Zhaolin | 2014 | China Petroleum Processing & Petrochemical Technology2014，16，4： | 5 |
| 5 | 扩孔剂法提高原位晶化微球的NaY分子筛含量显示文摘对扩孔剂法提高原位晶化微球的NaY分子筛含量进行了研究。以海南椰壳粉为原料制备扩孔剂EPA-C,将1%~7%EPA-C加入高岭土浆液后进行喷雾造粒,得到粒度分布为20~150μm的喷雾微球,喷雾微球经750~950℃焙烧2h得到焙烧微球,焙烧微球经水热晶化得到含59%~66%NaY分子筛的晶化微球,而不加EPA-C的样品只有38%NaY分子筛;实验结果表明:焙烧微球比表面积和孔体积增大,则晶化微球的NaY含量提高;在喷雾微球中引入EPA-C可以增加焙烧微球的比表面积和孔体积,引入1%的EPA-C,焙烧微球的BET比表面积由8.8m2/g提高到13.3m2/g,孔体积由2.0mL/g提高到3.1mL/g;同时晶化微球的抗磨性能较好,磨损指数小于2.1%/h,符合商用FCC催化剂的要求。 | 易辉华 姚伯元 张永明 田余 | 2009 | 中国非金属矿工业导刊2009，，2： | 5 |
| 6 | 煅烧高岭土的NMR研究显示文摘采用29Si、27AlMASNMR谱对不同产地高岭在同一煅烧温度及同一产地高岭土在不同煅烧温度的煅烧产物进行了研究.实验结果表明:不同产地高岭土在同一煅烧温度煅烧产物的29SiMASNMR相似,27AlMASNMR谱有所区别,煅烧温度对煅烧产物的29Si、27AlMASNMR有一定影响. | 王雪静 周继红 黄浪 方克明 | 2006 | 波谱学杂志2006，23，1： | 4 |
| 7 | 高岭石改性及其对流化催化裂化催化剂性能的影响显示文摘综述了高岭石的改性方法及其对高岭石理化性能和流化催化裂化(FCC)催化剂性能的影响。FCC催化剂的主要活性中心是表面酸位,主要裂化场所是催化剂的孔隙及表面。高岭石的酸改性或热改性增加了高岭石比表面积和表面酸量,改变了高岭石表面酸位种类以及孔结构,进而提高了高岭石基FCC催化剂的催化裂化性能。对国内外高岭石改性研究进行系统总结,可为高岭石的改性及其在FCC催化剂中的应用提供参考。 | 饶文秀 吕国诚 廖立兵 | 2019 | 硅酸盐学报2019，47，6： | 3 |
| 8 | 原位晶化型重油催化裂化催化剂的研究现状与展望显示文摘流化催化裂化(FCC)是石油加工工业重要的重质油轻质化的工艺技术。为适应FCC过程原料日益重质化的发展趋势,以高岭土为原料采用原位晶化合成技术制备的原位晶化型重油催化剂因其优异的活性稳定性、高的重油转化效率、强的抗重金属污染能力得到了日益广泛的应用。以重油催化裂化的反应机理及历程为基础,总结了理想的重油催化裂化催化剂应具有的结构特点,分析了国内外重油催化裂化催化剂的研究现状,综述了原位晶化型重油催化裂化催化剂的制备过程、结构特点及催化特性,阐述了原位晶化的原料预处理及合成机理。原位晶化型重油裂化催化剂经历了几十年的发展在技术上已日趋成熟,在应用上表现出其独特的优势,但其进一步发展仍面临挑战,这主要表现在:基于原位晶化型催化剂的反应机理研究缺乏,催化剂的表征有待继续深入,催化剂制备技术理论尚有待发展和完善,催化剂的后处理过程受限,催化剂的设计尚达不到'量体裁衣'的水平。 | 杨娇 李铁森 彭瀚 刘缓 | 2021 | 中外能源2021，26，1： | 2 |
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