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Influence of Metallic Modification on Ethylbenzene Dealkylation over ZSM-5 Zeolites

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中国化学:英文版 2015年第2期33卷 247-252页

作者： Chao Hu Junhui Li wenzhi jia Min Liu Zhixian Hao Zhirong Zhu Department of Chemistry Tongji UniversityShanghai 200092China

A series of metal-modified HZSM-5 catalysts were prepared by impregnation and were used for ethylbenzene dealkylation of the mixed C8 aromatics(ethylbenzene,m-xylene and o-xylene).The effects of different supported metals(Pt,Pd,Ni,Mo)on catalytic performance,including reaction conditions,were *** physicochemical properties of catalysts were characterized by means of XRD,BET,TEM and NH_(3)-*** results showed that metallic modification obviously increased the ethylbenzene conversion and reduced the coke deposition,greatly improving the catalyst *** distinction of ethylbenzene conversion depended on the interaction between hydrogenation reactivity and acidic cracking of bifunctional metal-modified *** with Pt and Ni,Pd and Mo were easier to disperse into HZSM-5 micropores during loading *** acidic density of different metal-modified HZSM-5 declined in the following order:HZSM-5>Pt/HZSM-5>Pd/HZSM-5>Ni/HZSM-5>Mo/*** activity of ethylene hydrogenation decreased with Pt/HZSM-5>Pd/HZSM-5>Ni/HZSM-5>Mo/*** comparison,Pd/HZSM-5 showed the best catalytic performance with both high activity and high selectivity,with less cracking loss of m-xylene and ***,the following reaction conditions were found to be preferable for ethylbenzene dealkylation over Pd/HZSM-5:340℃,1.5 MPa H2,WHSV 4 h^(−1),H_(2)/C84 mol/mol.

关键词： ethylbenzene dealkylation zeolites palladium

Geologic Characteristics of Volcanic Hydrocarbon Reservoirs and Exploration Directions in China

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Acta Geologica Sinica(English Edition) 2010年第1期84卷 194-205页

作者： ZOU Caineng ZHU Rukai ZHAO wenzhi jia Chengzao ZHANG Guangya YUAN Xuanjun ZHAO Xia WEN Baihong State Key Laboratory of Enhanced Oil Recovery. （Research Institute of Petroleum Exploration and Development） Beijing 100083

Volcanic rocks are distributed widely in China, which are important exploration targets. By analyzing many discovered volcanic hydrocarbon reservoirs all over the world, the authors summarized the geologic characteristics of the formation of volcanic hydrocarbon reservoirs in China, and gave further exploration directions and advices. （1） There are mainly Carboniferous-Permian, Jurassic-Cretaceous, Paleogene-Neogene volcanic rocks in oil- and gas-bearing basins in China, which are mainly distributed in the Junggar Basin, Songliao Basin, Bohai Bay Basin, etc. There are mainly intermediate rocks and acidic rocks in east China, and intermediate rocks and basic rocks in west China. They primarily develop in intracontinentai rift settings and island arc environments. （2） Porefissure reservoirs are distributed widely in basins, which are volcanic rocks mainly in explosive and effusive facies. （3） Volcanic hydrocarbon reservoirs are chiefly near-source lithostratigraphic hydrocarbon reservoirs, and the oil and gas accumulation is predominantly controlled by lithotypes, faults and structural positions. （4） Deep-seated oil and gas reservoirs in the Songliao Basin and Carboniferous volcanic hydrocarbon reservoirs in the Junggar Basin are potential giant volcanic gas provinces, the volcanic hydrocarbon reservoirs in the Bohai Bay Basin and Santanghu Basin are favorable for oil and gas reserves increase, and volcanic rocks in the Turpan Basin, Sichuan Basin, Tarim Basin have exploration potentiality. （5） The technology series of oil and gas exploration in volcanic rocks have been preliminarily formed.

关键词： volcanic rock geologic characteristics of volcanic hydrocarbon reservoirs lithostratigraphic hydrocarbon reservoirs exploration direction

Effect of external surface of HZSM-5 zeolite on product distribution in the conversion of methanol to hydrocarbons

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Journal of Energy Chemistry 2014年第6期23卷 771-780页

作者： Junhui Li Yanan Wang wenzhi jia Zhiwen Xi Huanhui Chen Zhirong Zhu Zhonghua Hu Department of Chemistry Tongji University

The external surface of HZSM-5 zeolite was passivated by liquid siliceous deposition and by acidic sites poisoning with lepidine, respectively. Then methanol-to-hydrocarbons （MTH） reaction was investigated over the above as-prepared catalysts and the dissoluble coke on these used catalysts was analyzed by GC-MS, to study the role of the external surface of HZSM-5 in the catalytic reaction. Comparison with the experi- mental results based on parent ZSM-5 showed that the product distribution of MTH reaction was obviously influenced by the external surface. Evidences were listed as follows：（1） the final product on parent HZSM-5 showed higher aromatic selectivity, lower olefin selectivity, lower ra- tio of C2/C3＋ aliphatics and higher ratio of C3/C4＋ aliphatics than the reaction mixture produced by the sole catalysis of acidic sites in HZSM-5 channel; （2） a little of pentamethylbenzene and hexamethylbenzene in the product on parent HZSM-5, was produced via multi-methylation of methylbenzene on the external surface. The above conclusion may also be suitable for MTH reaction over other zeolites with 10-ring channel.

关键词： methanol-to-hydrocarbons product distribution HZSM-5 external surface acidic sites

Synthesis and properties of hierarchical MOR and ZSM-5 Nanosheet Zeolites by self-assembly between subnanocrystals and two templates

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Synthesis and properties of hierarchical MOR and ZSM-5 Nanos...

第二届海峡两岸功能材料科技与产业峰会（2015）

作者： Min Liu Yanan Wang Junhui Li wenzhi jia Li Xiong Shuwen Ma Zhirong Zhu Department of Chemistry Informatization OfficeTongji University

Hierarchical zeolites integrated the advantages of microporous materials with improved diffusion rate are considered the best strategy to eliminate the limitations of purely microporous *** the same time,the morphology affects zeolites specific *** now,hierarchical MFI and MOR framework zeolites with different morphologies,such as sphere,sheet,hollow capsular,pillar and ellipsoidal,have been reported in

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全氟甲基乙烯基醚合成的研究进展

化工进展 2013年第10期32卷 2480-2485页

作者：贾文志朱志荣同济大学化学系上海200092

目前,全氟甲基乙烯基醚作为一种重要的含氟单体,在新型的氟塑料和氟橡胶合成中具有广泛的应用价值。本文对近年来发表的文献和专利进行了总结,将现有的合成全氟甲基乙烯基醚方法分析归纳为:四氟乙烯法、热解法、还原法和六氟环氧丙烷法... 详细信息

目前,全氟甲基乙烯基醚作为一种重要的含氟单体,在新型的氟塑料和氟橡胶合成中具有广泛的应用价值。本文对近年来发表的文献和专利进行了总结,将现有的合成全氟甲基乙烯基醚方法分析归纳为:四氟乙烯法、热解法、还原法和六氟环氧丙烷法。通过对上述4种合成方法地详细介绍,较全面地综述了全氟甲基乙烯基醚4种合成方法的研究进展,并讨论分析了不同的合成方法在工业应用上的利弊,认为改进提高新的实验室合成技术是今后实现全氟甲基乙烯基醚大规模工业化应用的一个主要途径。

关键词：全氟甲基乙烯基醚四氟乙烯法热解法还原法六氟环氧丙烷法

差分干涉技术在漳村煤矿地面沉降监测中的应用

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山东煤炭科技 2021年第10期39卷 219-220,225,233页

作者：贾文志潞安化工集团漳村煤矿山西长治046032

为了研究漳村煤矿在开采过程中地面沉降情况,采用D-InSAR技术获取矿区地面沉降监测数据,利用干涉图监测地面形变特征,结合GPS监测点的资料,对地面沉降结果进行监测精度分析。结果表明:与采用GPS技术相比,采用D-InSAR技术得到的监测精度... 详细信息

为了研究漳村煤矿在开采过程中地面沉降情况,采用D-InSAR技术获取矿区地面沉降监测数据,利用干涉图监测地面形变特征,结合GPS监测点的资料,对地面沉降结果进行监测精度分析。结果表明:与采用GPS技术相比,采用D-InSAR技术得到的监测精度误差在3.3 mm以内,且能准确反映矿区沉降分布,满足矿区沉降形变监测精度控制要求,为矿区合理开采提供了保障。

关键词：地面沉降 D-InSAR技术干涉图监测精度

不同割煤高度对某矿2802工作面回收率的影响研究

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山西冶金 2023年第1期46卷 108-109,112页

作者：贾文志潞安化工集团漳村煤矿山西长治046032

以漳村煤矿2802工作面为对象,系统地分析了影响工作面回收率的各类影响因素,并重点对影响煤炭资源回收率的割煤高度进行分析研究。结果表明:煤炭资源综合回收率随着作业面割煤高度的增加而增大,当割煤高度超过3 m,回收率可达93%以上;当... 详细信息

以漳村煤矿2802工作面为对象,系统地分析了影响工作面回收率的各类影响因素,并重点对影响煤炭资源回收率的割煤高度进行分析研究。结果表明:煤炭资源综合回收率随着作业面割煤高度的增加而增大,当割煤高度超过3 m,回收率可达93%以上;当割煤高度不超过3.2 m时,煤壁片帮量均比较小。因此,漳村煤矿割煤高度可确定在3.0~3.2 m范围内。

关键词：厚煤层割煤高度回收率

三维立体图生成法在煤堆测量工作中的应用分析

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煤炭与化工 2016年第1期39卷 112-114页

作者：贾文志潞安集团漳村煤矿山西长治046032

基于对三维立体技术的分析,在煤堆测量工作中引入三维立体图生成法,进行三角剖分、立体图生成和消隐处理,并对该技术的实际应用效果进行了研究。结果表明,采用三维立体图生成法效果明显,煤堆测量速度和精确度分别比传统方法提高了50%和1... 详细信息

基于对三维立体技术的分析,在煤堆测量工作中引入三维立体图生成法,进行三角剖分、立体图生成和消隐处理,并对该技术的实际应用效果进行了研究。结果表明,采用三维立体图生成法效果明显,煤堆测量速度和精确度分别比传统方法提高了50%和15%,为相似条件下的煤堆测量工作提供了参考。

关键词：煤堆测量三维立体图数据收集

负性生活事件对生活满意度的影响:解释性乐观的调节作用

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中国健康心理学杂志 2017年第1期25卷 76-79页

作者：马元广贾文芝滨州学院教师教育学院山东省滨州市人民医院

目的:探讨乐观对负性生活事件与生活满意度关系的影响。方法:采用随机整群分层取样法抽取385名大学生参加青少年生活事件量表、解释风格问卷和生活满意度问卷的调查。结果:(1)总应激量与生活满意度呈显著负相关(r=-0.20,P<0.01),其中人... 详细信息

目的:探讨乐观对负性生活事件与生活满意度关系的影响。方法:采用随机整群分层取样法抽取385名大学生参加青少年生活事件量表、解释风格问卷和生活满意度问卷的调查。结果:(1)总应激量与生活满意度呈显著负相关(r=-0.20,P<0.01),其中人际因子、学习压力和健康适应因子与生活满意度呈显著负相关(r=-0.18,-0.25;P<0.01;r=-0.12,P<0.05);消极事件解释风格与生活满意度呈显著负相关(r=-0.11,P<0.01);(2)负性生活事件与乐观的交互作用对生活满意度影响显著(F=7.04,P<0.01)。结论:解释性乐观是负性生活事件与生活满意度间的调节变量。

关键词：负性生活事件乐观生活满意度大学生