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Petroleum Science 2021年第1期18卷 295-306页

作者： Bo-Long Jiang Nan Jiang you-Xin Chang Innovation Institute for Sustainable Maritime Architecture Research and Technology Qingdao University of TechnologyQingdao 266000China Chongqing Changshou Sino French Water Co.Ltd. Chongqing 404100China

A bimetal-exchanged NaY zeolite(Cu(Ⅰ)-y(Ⅲ)-y)with a desirable adsorptive desulfurization(ADS)performance was prepared and characterized by means of X-ray diffraction,specific surface area measurements,X-ray fluorescence spectrometer,X-ray photoelectron spectroscopy,thermal gravity analysis and Fourier transform infrared spectroscopy.The effect of y(Ⅲ)ions on ADS in the presence of the xylenes was investigated.Results indicated that the ADS performance of y(Ⅲ)-y is higher than that of most reported Cey.The y(Ⅲ)-based Cu(Ⅰ)-y(Ⅲ)-y demonstrated the higher breakthrough loading than those of reported Ce(Ⅲ)/Ce(Ⅳ)-based transition metal Y zeolites,showing that y(Ⅲ)ions play a promoting role in improving the ADS selectivity.For Cu(Ⅰ)-y(Ⅲ)-y,a new strong S-M interaction(S stands for sulfur,while M stands for metal)active site was formed,which might be caused by the synergistic effect between Cu(Ⅰ)and y(Ⅲ).The Cu(Ⅰ)-y(Ⅲ)-y,which combined the advantages of Cu(I)-y and y(Ⅲ)-y,is a kind of promising adsorbent.The breakthrough loading decreased in the order of Cu(Ⅰ)-y(Ⅲ)-y>y(Ⅲ)-y>Cu(Ⅰ)-y,and the effect of xylene isomers on the sulfur removal was in the order of ortho-xylene>meta-xylene>para-xylene,which exhibited the same trend with the bond order of xylenes.

关键词： Desulfurization yttrium Copper Y zeolite Competitive adsorption Xylenes

Investigation on the mechanism of adsorption and desorption behavior in cerium ions modified y-type zeolite and improved hydrocarbons conversion

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Journal of Rare Earths 2016年第12期34卷 1221-1227页

作者：张乐李强秦玉才张晓彤高雄厚宋丽娟 College of Chemical Engineering China University of Petroleum(East China)Qingdao 266580China Liaoning Key Laboratory of Petrochemical Catalytic Science and Technology Liaoning Shihua UniversityFushun 113001China Research Institute of Petroleum and Petrochemical Petro China Company Limited Beijing 100083China

Different types of Y zeolites（Hy, USy and Na y） containing various amounts of cerium（Ce） were prepared with the method of liquid ion exchange and characterized by X-ray diffraction（XRD）, intelligent gravimetric analyzer（IGA）, and a molecular simulation technology（grand canonical Monte Carlo simulation, GCMC）. A novel calculation method of desorption index（DI） was proposed and the influence of cerium cationic species on the processes of adsorption-desorption of hydrocarbon molecules（n-octane） on the cerium modified Y zeolites（Ce y） was studied. The results indicated that Ce ion species played a key role in reducing desorption activation energy of n-octane on y type zeolites, leading to an improvement of the desorption ability of the Ce y and the regulation of the adsorption state of n-octane from aggregation to decentralization. These findings are essential factors for enhancing the product selectivity of light hydrocarbon component and the catalytic activity of rare earth modified Y zeolites（REy） catalysts in fluid catalytic cracking（FCC） process.

关键词： catalysis Y zeolite adsorption model GCMC rare earth ion species

Studies on zeolite Modified Electrode(Ⅰ)─Ascorbic Acid Sensor Based on Carbon Paste Electrode Containing Fe(Ⅲ)Y zeolite

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Chinese Chemical Letters 1997年第3期8卷 247-250页

作者： Ming Zhu ZOU Hong Ding XU Jie LU Qin Hua Ru （a Department of Chemistry, Jilin University, Changchun 130023 b Department of Chemistry, the North-East Normal University, Changchun 130022）（To whom correspondence should be addressed ） Department of Chemistry Jilin University Changchun 130023 China Department of Chemistry North-East Normal University Changchun 130022 China

A new ascorbic acid sensor constituted of carbon paste and Fe(Ⅲ)Y zeolite was studied.The characters of the sensor such as linear range. potential window、apparen Michaelis constant、response time、stability and accuracy wee investigated. The experimental results indicate that the analytical performance of the sensor is satisfactory.

关键词： Ascorbic Acid Sensor Based on Carbon Paste Electrode Containing Fe Y zeolite Studies on zeolite Modified Electrode

Synthesis, Growing Processes and Physical Properties of CdS Nanoclusters in y-zeolite Studied by Positron Annihilation

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Wuhan University Journal of Natural Sciences 2000年第4期5卷 431-435页

作者： Peng Hao,Ma Li, Wang Shao-jie, Liu Shu-man, Lin Zhao- jun Department of Physics, Wuhan University, Wuhan 430072, China Institute of Semiconductor, Chinese Academy of Science, Beijing 100086, China Department of Physics Wuhan University Wuhan China Institute of Semiconductor Chinese Academy of Science Beijing China

Direct synthesis of CdS nanoclusters within the pore structure of Y zeolite was made. The location of CdS nanoclusters inside Y zeolite hosts was confirmed by the blue-shifted reflection absorption spectra with respected to that of bulk CdS materials. In this paper, we conducted Positron Annihilation Lifetime Spectrum (PALS) measurements on a series of CdS/Y zeolite samples and concluded that CdS clusters were not located in supercages but in smaller sodalite cages; as the CdS loading concentration increases to 5 wt%, the discrete CdS cubes begin to form bigger superclusters through interaction. The stability of CdS clusters inside the sodalite units is due to the coordination of Cd atoms with the framework oxygen atoms of the double six-ring windows. Moreover, PALS reveals some important information of surface states existing on the interfacial layers between CdS clusters and Y zeolite.

关键词： Y zeolite nanoclusters absorption spectrum positron annihilation surface states interfacial layers

高岭土原位晶化产品及全合成y型沸石的稀土离子交换平衡

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离子交换与吸附 1994年第3期10卷 238-242页

作者：李全昌孟益民陶祖贻兰州大学化学系兰州大学现代物理系

本文测定了钠式高岭土原位晶化产品及全合成Ｙ型沸石与稀土离子铽Ｔｂ（Ⅲ）的离子交换等温线和平衡数据，采用了三种不同的热力学方法处理平衡数据，求得该离子交换反应Ｎａ→Ｔｂ的选择系数、修正选择系数、热力学平衡常数以及标准自... 详细信息

本文测定了钠式高岭土原位晶化产品及全合成Ｙ型沸石与稀土离子铽Ｔｂ（Ⅲ）的离子交换等温线和平衡数据，采用了三种不同的热力学方法处理平衡数据，求得该离子交换反应Ｎａ→Ｔｂ的选择系数、修正选择系数、热力学平衡常数以及标准自由能、热焓、熵的改变量。对这两种离子交换剂的结果及三种热力学处理方法进行了对比及讨论。

关键词： Ino Exchange Y zeolite

Effect of Ca promoter on LPG synthesis from syngas over hybrid catalyst

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Journal of Natural Gas Chemistry 2012年第6期21卷 615-619页

作者： Xiangang Ma Qingjie Ge Chuanyan Fang Hengyong Xu Dalian National Laboratory for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina

Direct synthesis of liquefied petroleum gas （LPG） from syngas was carried out over hybrid catalyst consisting of methanol synthesis catalyst and modified Y zeolite with Pd and Ca by different methods. The decrease of CO conversion was mostly attributable to the sintering of Cu in methanol synthesis catalyst. On the other hand, coke deposition on Y zeolite was the reason for the decrease of LPG selectivity. The introduction of Ca decreased the strong acid sites of Y zeolite, suppressed coke formation, and thus improved the stability of hybrid catalyst.

关键词： liquefied petroleum gas calcium Y zeolite coke deposition coke burning

Structural Changes of Y zeolites with Different Initial SiO_2/Al_2O_3 Ratios during Hydrothermal Treatment

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Petroleum Science 2005年第1期2卷 57-61页

作者： Wangyuchao ShenBaojian ZengPenghui FacultyofChemicalScienceandEngineering UniversityofPetroleumBeijing102249China

The effects of the initial framework SiO2/Al2O3 ratio and temperature on the structural changes of Nay zeolites during hydrothermal treatments are studied. Two samples with different framework SiO2/Al2O3 ratios are subjected to hydrothermal treatment at four different temperatures. For zeolite with a lower initial SiO2/Al2O3 ratio of 4.2, mesopores are easily formed because more framework aluminum is detached. Moreover, two kinds of mesopores are produced at a higher temperature due to the interconnection of vacancies and smaller mesopores. For zeolite with a higher initial SiO2/Al2O3 ratio of 6.0, there are less mesopores formed as compared with the lower initial SiO2/Al2O3 ratio sample, but there are some macropores formed. This may be attributed to the isolation of vacancies and the different distributions of aluminum in the crystal lattice of the zeolite. The experiment data show that Nay with the SiO2/Al2O3 ratio of 6.0 retains a high relative crystallinity during the hydrothermal treatment. This proves that a high framework SiO2/Al2O3 ratio benefits the stability of zeolite.

关键词： Y zeolite hydrothermal treatment SiO2/Al2O3 ratio mesopore temperature

The Regioselectivity of Friedel-Crafts Acylation of Anisole Using Microwave Modified ZnCl2/Hy zeolite Catalysts

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分子催化 1998年第6期 2-3页

作者： yIN Donghong yIN Dulin FU Zaihui (Institute of Fine Catalysis and Synthesis Hunan Normal University Changsha 410081)

ＩｎｔｈｉｓｗｏｒｋａｃｙｌａｔｉｏｎｂｅｔｗｅｅｎａｎｉｓｏｌｅａｎｄａｃｅｔｙｌｃｈｌｏｒｉｄｅｏｖｅｒＺｎＣｌ２／ＨＹｃａｔａｌｙｓｔｓｗｉｔｈｈｉｇｈｒｅｇｉｏｓｅｌｅｃｔｉｖｉｔｙｗａｓｒｅｐｏｒｔｅｄ．Ｔ... 详细信息

ＩｎｔｈｉｓｗｏｒｋａｃｙｌａｔｉｏｎｂｅｔｗｅｅｎａｎｉｓｏｌｅａｎｄａｃｅｔｙｌｃｈｌｏｒｉｄｅｏｖｅｒＺｎＣｌ２／ＨＹｃａｔａｌｙｓｔｓｗｉｔｈｈｉｇｈｒｅｇｉｏｓｅｌｅｃｔｉｖｉｔｙｗａｓｒｅｐｏｒｔｅｄ．Ｔｈｅｐａｒｔｉａｌｙｓｏｄｉｕｍｉ...

关键词： Regioselectivity Friedel Crafts acylation Y zeolite Microwave irradiation

Cationic Metalloporphyrins Imobilized in Faujasite zeolites as a Cytochrome P-450 Mimic

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Modern Research in Catalysis 2013年第2期2卷 47-55页

作者： Luciana P.B.Lovo Fabiana C.Skrobot Gianluca C.Azzellini yassuko Iamamoto Ieda L.V.Rosa Departamento de Quimica FFCLRPUniversidade de Sao PauloRibeirao PretoBrazil Departamento de Quimica Universidade Federal de Sao CarlosSao CarlosBrazil Instituto de Química Universidade de Sao PauloSao PauloBrazil

Metalloporphyrins immobilized into NaY zeolite are described as catalysts for hydrocarbon oxyfuntionalization. Manganese(III) and iron(III)tetrakis(4-N-methylpyridyl)-porphyrin (MnP1 and FeP1), and manganese(III) and iron(III) tetrakis(4-N-benzylpiridil)-porphyrin (MnP2 and FeP2) were impregnated (MnP1-Nayimp, FeP1-Nayimp, MnP2-Nayimp, FeP2-Nayimp, respectively) and encapsulated (MnP1-Nay, FeP1-Nay, MnP2-Nay and FeP2-Nay) into the NaY zeolite. These catalysts were used in the oxidation of (Z)-cyclooctene, cyclohexane, and adamantane by iodosylbezene (PhIO). These systems were able to epoxidize (Z)-cyclooctene with cis-epoxycyclooctane yields as high as 100%. By using cyclohexane and adamantane as substrate, the susceptibility of the benzyl groups on the porphyrin ring of the MnP materials, led to a different distribution of the oxidized products. With FePs, this susceptibility was not detected because the species responsible for the oxidations, FeIV(O)P·+, is more active than MnV(O)P. In conclusion, cationic metalloporphyrins immobilized into NaX zeolites, are good cytochrome P-450 models is less polar solvents since the selectivity of the system indicates the “in cage” solvent oxygen rebound oxidative process.

关键词： Metalloporphyrin Iodosylbenzene Hydrocarbon Oxidation Y zeolite