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| 1 | Disproportionation of Toluene by Modified ZSM-5 Zeolite Catalysts with High Shape-selectivity Prepared Using Chemical Liquid Deposition with Tetraethyl Orthosilicate显示文摘为甲苯的 disproportionation 的形状选择的催化剂被塑造柱体的 ZSM-5 沸石 extrudates 的修正与 TEOS (tetraethyl orthosilicate ) 与化学液体免职准备。为准备催化剂的各种各样的参数被改变调查合适的条件。产生催化剂在一个迫使的固定的床反应堆被测试并且由 SEM (扫描电子显微镜学) 描绘了。甲苯和帕拉二甲苯选择的变换被免职代理人,酸和溶剂的 ZSM-5 沸石,类型和数量的 /n (Al2O3 ) 比率使用了的 n (SiO2 ) 显著地影响,并且免职处理的时间和周期。当免职数量是低的时, TEOS 被证明比常规 polysiloxanes 是一个更有效的代理人。以合适的条件准备的催化剂与 25.6% 的可观的高变换展出了 91.1% 的一种高帕拉二甲苯选择。SEM 分析在 ZSM-5 zeolie 晶体的外部表面上证实了非结晶的硅石的层的形成,它为高度提高的形状选择负责。 | 腾晖 王军 任晓乾 陈德民 | 2011 | Chinese Journal of Chemical Engineering2011，19，2： | 15 |
| 2 | 磷改性ZSM-5分子筛的水热稳定性显示文摘选取n(SiO_2)/n(Al_2O_3)为45、150、250的磷改性ZSM-5分子筛样品,在800℃和100%水蒸气气氛下分别水热处理4、8和17 h,得到一系列高温水热老化后的磷改性ZSM-5分子筛样品。采用XRD、XRF、BET、NH_3-TPD、^(31)P NMR、^(27)Al NMR表征方法研究这些老化样品的磷氧化物状态变化及骨架铝配位、物相、孔结构和酸性变化情况。通过脉冲微反实验考察这些老化样品的甲醇制丙烯(MTP)反应催化性能稳定性。结果表明,ZSM-5的n(SiO_2)/n(Al_2O_3)对磷改性作用和水热稳定性有重要影响,提高水热老化温度和延长老化时间会明显加剧磷氧化物的迁移、缩合及与骨架铝的配位成键作用。低n(SiO_2)/n(Al_2O_3)时,四配位骨架铝容易转变为与磷有配位关系的各类缺陷位骨架铝和六配位非骨架铝;高n(SiO_2)/n(Al_2O_3)时,尤其在n(SiO_2)/n(Al_2O_3)为150时,存在大量骨架铝既具有很高的抗磷氧化物配位成键能力,又具有很好的抗水蒸气水解能力,具有更高的反应催化活性和水热稳定性。提高水热处理温度还具有疏通磷改性ZSM-5分子筛孔道的作用,低n(SiO_2)/n(Al_2O_3)的磷改性ZSM-5分子筛的比表面积和孔体积有部分恢复,高n(SiO_2)/n(Al_2O_3)的微孔部分比表面积有所增加。不同n(SiO_2)/n(Al_2O_3)磷改性ZSM-5分子筛的相对结晶度均随水热老化温度提高和老化时间延长而下降;酸量和酸强度均随水热老化温度升高而急剧下降,但随水热老化时间延长保持相对稳定,n(SiO_2)/n(Al_2O_3)为150的磷改性ZSM-5分子筛的酸性最稳定。n(SiO_2)/n(Al_2O_3)为150的磷改性ZSM-5分子筛经过800℃和100%水蒸气老化4 h后具有优异的MTP催化性能,如高反应活性、高丙烯选择性和烃产物组成稳定性。 | 宋守强 李明罡 李黎声 王殿中 张凤美 舒兴田 | 2014 | 石油学报(石油加工)2014，30，2： | 14 |
| 3 | Effects of ammonium exchange and Si/Al ratio on the conversion of methanol to propylene over a novel and large partical size ZSM-5显示文摘One type of ZSM-5 zeolite with large partical size was prepared and characterized by XRD, SEM, N2 adsorption-desorption, XRF, Py-IR and NH3-TPD techniques. Effects of ammonium exchange and SiO2/Al2O3 molar ratios on the reaction of methanol to propylene (MTP) over Na-ZSM-5 and H-ZSM-5 zeolites have been studied in a fixed-bed flow reactor under the operating conditions of T = 500 °C, P = 1 atm, and WHSV = 6 h-1. Ammonium exchange led to a rapid decrease in Na content for Na-ZSM-5 zeolite. The reaction results indicated that Na-ZSM-5 and H-ZSM-5 with different SiO2/Al2O3 molar ratios all exhibited high activity for methanol conversion. Ammonium exchange and the decreased SiO2/Al2O3 molar ratio of ZSM-5 zeolite led to an increase both in strong acid sites and weak acid sites. Na-ZSM-5 with high SiO2/Al2O3 molar ratio was favorable for the formation of propylene. The highest propylene selectivity (45.9%) was obtained over Na-ZSM-5 zeolite catalyst with SiO2/Al2O3 molar ratio of 220. | Ruchao Wei Chunyi Li Chaohe Yang Honghong Shan | 2011 | Journal of Natural Gas Chemistry2011，20，3： | 12 |
| 4 | 镓锌铂改性HZSM-5催化剂芳构化性能的研究显示文摘在实验室用常规浸渍法并增加适当处理步骤制备了Ga/Zn/Pt/HZSM-5催化剂,在实验室微型连续流动式固定床反应器中用4种原料进行了试验。试验表明,它对正己烷具有良好的芳构化活性和稳定性,反应4h的芳烃收率为52.08w%,单程反应151h的平均芳烃收率为50.36w%。油田轻烃在该催化剂上单程反应240h的平均芳烃收率为47.95w%,累计运转1044h活性无明显下降。重整抽余油和热裂化汽油也是用这种催化剂进行芳构化的好原料。 | 刘路加 武显春 董群 王鉴 | 1993 | 石油炼制1993，24，5： | 8 |
| 5 | Study on the deactivation and regeneration of the ZSM-5 catalyst used in methanol to olefins显示文摘ZSM-5 zeolite catalyst modified by a trace of metal cations shows high activity and high selectivity for the reaction of methanol to olefins (MTO), but it inclines to deactivate during the reaction. In this paper, the mechanism of the catalyst deactivation and the regeneration method were studied by X-ray diffraction (XRD), N2 adsorption-desorption, infrared spectra (IR), and infrared spectra coupled with NH3 molecular probes (IR-NH3). These characterizations indicated that coke formation was the main reason for the catalyst deactivation. To regenerate the deactivated catalyst, two methods, i.e., calcination and methanol leaching, were used. N2 adsorption-desorption, IR and IR-NH3 characteriza-tions showed that both methods can eliminate coke deposited on the catalyst and make the catalyst reactivated. XRD showed that the structure of the catalyst did not change after regeneration. Interestingly, the regenerated catalyst even showed better catalytic performance of the MTO reaction than the fresh one. Besides, the calcination regeneration can eliminate coke more completely, however, the methanol leaching method can be more easily carried out in situ in the reactor. | Jingchang Zhang Haibin Zhang Xiuying Yang Zhong Huang Weiliang Cao | 2011 | Journal of Natural Gas Chemistry2011，20，3： | 8 |
| 6 | Adsorption of Benzene and Propylene in Zeolite ZSM-5:Grand Canonical Monte Carlo Simulations显示文摘The adsorption behavior of benzene and propylene in zeolite ZSM-5 was studied by Grand Canonical Monte Carlo(GCMC) simulations. It could be found that benzene and propylene molecules showed different adsorption behavior in the zeolite cavities. The loadings of propylene were significantly larger than those of benzene at 100 kPa. From the figures of potential energy distribution,the potential energy of benzene/zeolite was more negative than that of propylene/zeolite,so benzene could be adsorbed more stably than propylene. When the temperature was increased from 298 to 443 K at 100 kPa,the loading of propylene was reduced from 99 to 82 molecules,whereas that of benzene changed little. When benzene and propylene were adsorbed in zeolite simultaneously,the competitive adsorption of them occurred; therefore,the potential energy distribution could be changed significantly. Besides,the adsorption isotherms of benzene and propylene in ZSM-5 at 298 and 443 K were simulated. The results exhibit that the different factors influenced the molecular adsorption at various temperatures and pressures,leading to the different rules for the adsorption of benzene and propylene molecules in the zeolite. At a low pressure,the unfavorable energy of propylene/zeolite and the 'commensurate freezing' phenomenon of benzene would make the loadings of itself higher than those of propylene. When pressure was higher than 5 kPa,the adsorption of benzene in ZSM-5 would nearly reach saturation. | SUN Xiao-yan LI Jian-wei LI Ying-xia YAN Shi-cheng CHEN Biao-hua | 2009 | Chemical Research in Chinese Universities2009，25，3： | 7 |
| 7 | Effect of combining the metals of group VI supported on H-ZSM-5 zeolite as catalysts for non-oxidative conversion of natural gas to petrochemicals显示文摘The most prestigious catalyst applied in natural gas (methane) non-oxidative conversion to petrochemicals is 6%Mo/H-ZSM-5. Chromium, molybdenum and tungsten are the group VI metals. Hence, in this work, 6%Mo/H-ZSM-5 was correlated with 3%Cr+3%Mo/H-ZSM-5 and 3%W+3%Mo/H-ZSM-5 as catalysts to examine their promoting or inhibiting effects on the various reactions taking place during methane conversion. The catalytic activities of these catalysts were tested in a continuous flow fixed bed reactor at 700°C and a GHSV of 1500 ml g-1 h-1. Characterization of the catalysts using XRD, TGA and TPD were investigated. XRD and NH3-TPD showed greater interaction between the W-phase and the Bronsted acid sites in the channels of the zeolite than between Cr-phase and the acid sites in the zeolite. | A. K. Aboul-Gheit A. E. Awadallah | 2009 | Journal of Natural Gas Chemistry2009，18，1： | 5 |
| 8 | Propane Dehydrogenation over PtSnNa Catalyst Supported on La-ZSM-5 Zeolite显示文摘有 La 的不同内容的 La-ZSM-5 沸石被材料的物理化学的性质是的热水的 method.The 综合英尺红外分析的 studied.The 结果显示 La 可能被合并到分析显示出的 ZSM-5 zeolite.The NH3-TPD 的框架沸石的弱酸地点的数量与连续地增加的 La 减少了 content.Afterwards , La-ZSM-5 沸石被用作对丙烷 dehydrogenation.The 测试结果的 PtSnNa | Huang Li Zhou Yuming Zhang Yiwei Li Qingning Tian Xiaoming (School of Chemistry and Chemical Engineering,Southeast University,Nanjing 211189) | 2010 | China Petroleum Processing & Petrochemical Technology2010，12，3： | 4 |
| 9 | ZSMY-1型在线色谱模拟蒸馏分析仪的研究与开发显示文摘本文介绍了一种新型的ZSMY-1型在线色谱模拟蒸馏分析仪的研制及其装置的工业试验。 | 张传 张静淑 | 2005 | 中国仪器仪表2005，，9： | 4 |
| 10 | In-situ Synthesis of ZSM-5 Zeolite from Metakaolin/Spinel and Its Catalytic Performance on Methanol Conversion显示文摘ZSM-5 zeolite was in-situ synthesized from metakaolin or spinel by incorporating additional silica and alumina sources,respectively.The ZSM-5 zeolite was characterized by X-ray diffractometry(XRD),scanning electron microscopy(SEM),Fourier transform infrared(FT-1R) spectroscopy and N_2 adsorption measurement. This supported zeolite was tested on the methanol to propylene(MTP) processes.Experimental results showed that the ZSM-5 zeolite exhibited high selectivity for propylene.The yield of propylene on ZSM-5 zeolite made from metakaolin was increased by 17.73%,while that on ZSM-5 zeolite made from spinel was raised by 9.90%,compared to that achieved with the commercial ZSM-5 zeolite.The significant increase in propylene production is probably due to the distinctive morphology of the ZSM-5 zeolite,which possessed a rough external surface covered with sphere-like particles and distribution of small crystals sized at around 400—500 nm.This morphology could help to generate more crystal defects so that more active centers could be exposed to the reaction mixture.In addition,the zeolite product had a gradient pore distribution and many medium Bronsted acid sites,both of which might also contribute to the increased propylene production. | Liu Ye Yu Xianbo Qin Lei Wang Jingdai Yang Yongrong (Department of Chemical and Biochemical Engineering,Zhejiang University,Hangzhou 310027) | 2010 | China Petroleum Processing & Petrochemical Technology2010，12，1： | 4 |
| 11 | 沸石催化剂上降冰片烯二聚(英文)显示文摘The high activity and selectivity of H‐Beta and H‐ZSM‐12 zeolites in the dimerization of norbornene was established.The norbornene conversion reached 100% in chlorinated paraffin and argon gas medium,with a selectivity of dimer formation of 88%–98%.Four stereo‐isomers of the bis‐2,2'‐norbornylidene structure were identified in the dimer fraction,with the(Z)‐anti‐bis‐2,2'‐norbornylidene prevailing over the others. | N.G.Grigor'eva S.V.Bubennov L.M.Khalilov B.I.Kutepov | 2015 | 催化学报2015，36，3： | 3 |
| 12 | 改性分子筛催化合成乙酸戊酯显示文摘考察不同改性分子筛催化合成乙酸戊酯的催化活性 ,结果表明 :改性SO2 - 4/FeZSM对合成酯的催化作用较好 ,并讨论了以该催化剂催化酯化时原料配比、催化剂用量、反应时间等因素与酯化反应的关系 .确定了以该催化剂合成酯的最佳条件 :反应温度 12 0℃ ,酸醇摩尔比为 1∶1.1,催化剂用量为 0 .4 g ,反应时间为 3hr使酸转化率为 86.33% . | 戴玉梅 唐恩 陈守正 | 2001 | 泉州师范学院学报2001，19，4： | 3 |
| 13 | Experimental and density functional theory study of the adsorption of N_2O on ion-exchanged ZSM-5: Part II. The adsorption of N_2O on main-group ion-exchanged ZSM-5显示文摘The adsorption and desorption of N 2 O on main-group ion-exchanged ZSM-5 was studied using temperature-programmed desorption (TPD) and density functional theory (DFT) calculations. TPD experiments were carried out to determine the desorbed temperature T max corresponding to the maximum mass intensity of N 2 O desorption peak and adsorption capacity of N 2 O on metal-ion-exchanged ZSM- 5s. The results indicated that T max followed a sequence of Ba 2+ > Ca 2+ > Cs + > K + > Na + > Mg 2+ and the amount of adsorbed N 2 O on main-group metal cation followed a sequence of Ba 2+ > Mg 2+ > Ca 2+ > Na + > K + > Cs + . The DFT calculations were performed to obtain the adsorption energy (E ads ), which represents the strength of the interaction between metal cations and the N-end or O-end of N 2 O. The calculation results showed that the N-end of the N 2 O molecule was favorably adsorbed on ion-exchanged ZSM-5, except for Cs-ZSM-5. For alkali metal cations, the E ads of N 2 O on cations followed the order which was the same to that of T max : Cs + > K + > Na + . The calculated and experimental results consistently showed that the adsorption performances of alkaline-earth metal cations were better than those of alkali metal cations. | Bo Zhang Yongan Lu Hong He Jianguo Wang Changbin Zhang Yunbo Yu Li Xue | 2011 | Journal of Environmental Sciences2011，23，4： | 2 |
| 14 | 用SO_4(2-)/FeZnZSM催化剂液相合成乙酸丁酯显示文摘用浸渍法混合负载铁、锌、硫酸,研制出一种SO42-/FeZnZSM分子筛催化剂,用正交试验法分别探讨了负载浓度、焙烧温度、酸醇摩尔比以及催化剂用量对催化活性的影响,用ICP、XRD、DTA、TG、SSA、NH3-TPD等技术对催化剂的物化性能进行了表征.结果表明:研制出的SO42-/FeZnZSM催化剂对酯化反应具有良好的催化活性,选择性达100%.在122℃,酸醇摩尔比为1∶1.08时,反应3小时后,乙酸的转化率达97.63%.因催化剂制备成本低,催化剂热稳定性好,机械强度高,可望有开发应用价值. | 戴玉梅 林深 黄颖 陈守正 | 1999 | 福建师范大学学报(自然科学版)1999，15，1： | 2 |
| 15 | Effects of Metal Oxide in ZSM-5 Zeolite on Its Catalytic Performance in FCC Process显示文摘Effects of metal oxide in ZSM-5 zeolite on its catalytic performance in fluid catalytic cracking reaction were studied via characterization by XRD and FT-IR spectroscopy using pyridine and collidine as molecular probes,and the modified ZSM-5 zeolite was evaluated in a micro reactor using standard light diesel fraction as the feedstock.Test results indicate that the metal species introduced into the ZSM-5 zeolite had led to the formation of Lewis acid centers.When the modified ZSM-5 zeolite with the metal species on its surface was used as the catalyst in FCC reaction,both the propylene yield and the propylene concentration in the liquefied petroleum gas increased,but in the meantime,more hydrogen and coke were formed at high conversion rate under the joint action of nonselective cracking of Lewis acid centers and dehydrogenation at metal centers on its outside surface. | Qin Jinlai Ouyang Ying Li Minggang Luo Yibin Shu Xingtian(SINOPEC Research Institute of Petroleum Processing,Beijing 100083) | 2011 | China Petroleum Processing & Petrochemical Technology2011，13，2： | 2 |
| 16 | Growth of ZSM-5 crystals within hollow β-zeolite显示文摘沸石合成 ZSM-5 创作了,沸石被成核的一个过程和 ZSM-5 沸石的结晶化在空沸石综合了。有铝穷人内部和充满铝的外部边界的沸石晶体的性质在铝穷人体积而非充满铝的外部表面有利地导致硅抽取。随后,沸石晶体的碱的处理在秒步合成期间导致铝穷人中心和空沸石晶体的形成的优先的溶解。ZSM-5 沸石晶体因此在空沸石以内被嵌入并且成长。Co-H, Co-HZSM-5 和 Co-HZSM-5/BEA 的催化活动在甲烷的反应期间被调查催化减小不面对 O2。 | Qing Hu Zeng Xiang Bai Jia Jun Zheng Jia Qi Chen Rui Feng Li | 2011 | Chinese Chemical Letters2011，22，9： | 2 |
| 17 | 模板分子TMEDA在CF-3及ZSM-39沸石笼中的位置及其与骨架的相互作用显示文摘用XRD、FTIR、IG-DTA、^(13)C魔角固体核磁共振表征了用四甲基乙基二胺(TMEDA)为结构异向剂合成的高硅沸石CF-3及ZSM-39.TMEDA不同基团的^(13)C化学位移,共振峰相对强度在交叉极化(CP)及高功率去偶(HPDEC)核磁共振谱中的变化,揭示出模板分子在尺寸不同的沸石笼中的位置、运动状态及其与骨架的相互作用.在ZSM-39沸石中的TMEDA分子,它的-C_2H_4-基团^(13)C共振峰明显窄化,向高场的异常位移以及它与-CH_3基团^(13)C共振峰相对强度在CP及HPDEC谱中的明显变化,说明为2个相邻的[5^(12)6~4]笼所共有的TMEDA分子,其-C_2H_4-基团与这2个笼所共用的六氧元环的氧原子有强烈的相互作用. | 孙尧俊 吴泰琉 王力平 费伦 龙英才 | 1993 | 高等学校化学学报1993，14，12： | 1 |
| 18 | 在MA(甲基胺)-SiO_(2)-H_(2)O凝胶中ZSM-39单晶的生长显示文摘ZSM-39合成专利首次发表于1981年[1]。1982年Schleker和Meier[2]等通过拟合X射线粉末衍射数据推测出ZSM-39晶体具有氧化硅12面体及16面体的笼形包络物结构(Clathrate Structure),与天然矿物硫方晶石(Melanophlogite)的结构类型相近[3]。1983年Bibhy等研究了ZSM-39的性质并用包络物结构进行解释。目前,这类材料的合成与结构研究已成为沸石科学家和矿物学家感兴趣的问题之一。 | 龙英才 | 1987 | 高等学校化学学报1987，8，6： | 1 |
| 19 | 甲醇制丙烯催化剂的研究进展(Ⅱ)——ZSM系列分子筛显示文摘综述了国内外甲醇制烯烃(主要是丙烯)领域中ZSM系列分子筛催化剂的研究进展及其开发和应用。催化剂是该制备工艺能否长周期平稳运行的关键,应具有高的轻烯烃选择性、易再生、寿命长和价格便宜等优点。石油资源的短缺,导致甲醇制低碳烯烃催化剂及工艺开发的步伐不断加快。 | 张瑶 陈文瑞 李享 孙丽丽 李虎强 范鑫鑫 承倩怡 高虎 | 2015 | 广州化工2015，43，14： | 1 |
| 20 | Solid-state crystallization process and mechanism of B-Al-ZSM-5 zeolite显示文摘Solid state crystallization process and mechanism of B Al ZSM 5 zeolite from a dry gel of B 2O 3·Al 2O 3·SiO 2 in the mixture of ethylamine and water vapour were studied by 11 B, 27 Al, 29 Si, 13 C MAS NMR, XRD and IR. The extranetwork trigonal BO 3 units in the gel play an important role in the process of crystallization. The change of chemical environment around Al atoms is complicated in the process of crystallization. Octahedral Al O groups existing in the intermediate products do not appear in both the initial gel and final product. Silicon is mainly present as hydroxyl compounds, and the extrastructural Si O groups detected in the process of crystallization disappear after complete crystallization. Ethylamine plays the role of both template and reactant. It acts with the boron , aluminum , and silicon hydroxyls through hydrogen bonding and promotes the crystallization process. The relative crystallinity of the final B Al ZSM 5 product is about 93% as measured with 11 B MAS NMR and IR. | 董维阳 孙尧俊 贺鹤勇 龙英才 高滋 | 1998 | Science China Chemistry1998，41，1： | 0 |
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