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Hierarchical ZSM-5 zeolite with radial mesopores:Preparation,formation mechanism and application for benzene alkylation

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Frontiers of Chemical Science and Engineering 2020年第2期14卷 248-257页

作者： darui wang Hongmin Sun Wei Liu Zhenhao Shen Weimin Yang State Key Laboratory of Green Chemical Engineering and Industrial Catalysis Shanghai Research Institute of Petrochemical TechnologySinopecShanghai 201208China

Hierarchical ZSM-5 zeolite with radial mesopores is controllably synthesized using piperidine in a NaOH *** piperidine molecules enter the zeolite micropores and protect the zeolite framework from extensive *** areas containing fewer aluminum atoms contain fewer piperidine protectant molecules and so they dissolve *** amounts of mesopores are then gradually generated in areas with more aluminum atoms and more piperidine *** this manner,radial mesopores are formed in the ZSM-5 zeolite with a maximal preservation of the micropores and active *** optimal hierarchical ZSM-5 zeolite,prepared with a molar ratio of piperidine to zeolite of 0.03,had a mesopore surface area of 136 m·g and a solid yield of 80%.The incorporation of the radial mesopores results in micropores that are interconnected which shortened the average diffusion path *** to the parent zeolite,the hierarchical ZSM-5 zeolite possesses more accessible acid sites and has a higher catalytic activity and a longer lifetime for the alkylation of benzene.

关键词： hierarchical ZSM-5 zeolite protective desilication piperidine radial mesopores benzene alkylation

A model for carbon isotope distribution of methane duringdiagenesis

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Chinese Science Bulletin 1998年第7期43卷 576-578页

作者： Ping Guan Yongchang Xu Wenhui Liu darui wang Peking Univ Dept Geol Beijing 100871 Peoples R China Chinese Acad Sci Lanzhou Inst Geol Lanzhou 730000 Peoples R China Res Inst Petr Explorat & Dev Beijing 100083 Peoples R China

The evolution of methane carbon isotope with depth has been discussed based on diagenetic reaction kinetics and isotopic Rayleigh fractionational theory. A mathematical model to describe data of methane carbon isotope... 详细信息

关键词： methane carbon isotope maturity Rayleigh fractionation.

Shape-selective alkylation of benzene with ethylene over a core–shell ZSM-5@MCM-41 composite material

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Chinese Journal of Chemical Engineering 2021年第9期34卷 64-71页

作者： Zhenhao Shen Chongwei Ma darui wang Junlin He Hongmin Sun Zhirong Zhu Weimin Yang Shanghai Key Lab of Chemical Assessment and Sustainability School of Chemical Science and EngineeringTongji UniversityShanghai 200092China Shanghai Research Institute of Petrochemical Technology SinopecShanghai 201208China School of Chemical Engineering East China University of Science and TechnologyShanghai 200237China

A series of ZSM-5@MCM-41 core-shell composite materials prepared via a multi-cycle-sol-gel coating strategy is investigated as the catalyst for benzene alkylation with ethylene,in which both ethylbenzene and para-diethylbenzene(p-DEB)are aimed as the target *** multi-cycle-sol-gel coating,the external acid sites on the samples are gradually passivated by the inert MCM-41 *** a result,the shape selectivity to p-DEB is greatly ***,the coating of mesoporous MCM-41 shell on ZSM-5 accelerates deactivation of the catalyst only due to the dilution effect of ZSM-5 content in the catalyst at the same space velocity,which is a reason that core-shell ZSM-5@MCM-41 will potentially be a practical catalyst in shape selective alkylation of *** order to enhance the yield of p-DEB on ZSM-5@MCM-41,the reaction conditions at the fixed bed reactor including temperature,the molar rate of benzene to ethylene and GHSV,are also optimized.

关键词： Core-shell ZSM-5@MCM-41 Coating Ethylbenzene Para-diethylbenzene Shape selectivity Deactivation

Adaptive Robust Servo Control for Vertical Electric Stabilization System of Tank and Experimental Validation

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Defence Technology（防务技术） 2024年第1期31卷 326-342页

作者： darui Lin Xiuye wang Yimin wang Guolai Yang School of Mechanical Engineering Nanjing University of Science and TechnologyNanjing210094China

A tracking stability control problem for the vertical electric stabilization system of moving tank based on adaptive robust servo control is *** paper mainly focuses on two types of possibly fast timevarying but bounded uncertainty within the vertical electric stabilization system:model parameter uncertainty and uncertain ***,the vertical electric stabilization system is constructed as an uncertain nonlinear dynamic system that can reflect the practical mechanics transfer process of the ***,the dynamical equation in the form of state space is established by designing the angular tracking ***,the comprehensive parameter of system uncertainty is designed to estimate the most conservative effects of ***,an adaptive robust servo control which can effectively handle the combined effects of complex nonlinearity and uncertainty is *** feasibility of the proposed control strategy under the practical physical condition is validated through the tests on the experimental *** paper pioneers the introduction of the internal nonlinearity and uncertainty of the vertical electric stabilization system into the settlement of the tracking stability control problem,and validates the advanced servo control strategy through experiment for the first time.

关键词： Adaptive robust servo control Experimental validation Nonlinearity compensation System uncertainty Vertical electric stabilization system

Developmental modes of the Neoproterozoic-Lower Paleozoic marine hydrocarbon source rocks in China

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Chinese Science Bulletin 2007年第A1期52卷 77-91页

作者： ZHANG BaoMin ZHANG ShuiChang BIAN LiZeng JIN ZhiJun wang darui Research Center of Petroleum Geology in Research Institute of Petroleum Exploration and Development PetroChina Beijing 100083 China Department of Earth Sciences Nanjing University Nanjing 210093 China Research Institute of Petroleum Exploration and Development Sinopec Beijing 100083 China

Based on the researches on rock type, the mode of occurrence, diagnostic minerals and creatures, the sedimentary geochemistry and organic facies of Chinese marine source rocks from wells and outcrops, and on the research findings of developmental modes of foreign marine source rock, the authors consider that it is impossible to objectively make clear the formation mechanism of hydrocarbon source rock with high organic matter abundance by either single mode of preservation or high organic matter productivity. According to the Chinese geological features, the formation mechanism of the Neoproterozoic-Lower Paleozoic marine source rock is generalized into four modes, namely, thermal water activity-upwelling flow-anoxic; carbonate gentle slope-upwelling flow; xerothermic climate-brine euxinic milieu; and humid climate-retained euxinic milieu; as the Lower Cambrian undercompensation basin organic facies (the Tarim Basin, South China and southwestern margin of North China), carbonate gentle lime mud bound organic facies (the Upper Ordovician in Tazhong region of the Tarim Basin and the Lower Silurian in the Upper Yangtze Platform), the Middle Cambrian evaporation laggon organic facies (the Tarim Basin and the Upper Yangtze Platform), enclosed undercompensation terrigenous bay organic facies (the Middle-Upper Ordovician in the west of the Tarim Basin, the Lower Silurian Longmaxi Formation in the Upper Yangtze platform). Chinese marine sedimentations with lower organic matter abundance are generalized into two modes of consumption-dilution mode of open epicontinental sea and depletion-dilution mode of supercompensation basin.

关键词：上升流海洋岩石干温

INFLUENCES OF MARINE FLOOR HYDROTHERMAL ACTIVITY ON ORGANIC MATTER ABUNDANCE IN MARINE CARBONATE ROCKS——A CASE STUDY OF MIDDLE-UPPER PROTEROZOIC IN THE NORTHERN PART OF NORTH CHINA

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Chinese Science Bulletin 2006年第5期51卷 585-593页

作者： wang Jie CHEN Jianfa BAO Zhidong ZHANG Shuichang XU Yongchang wang darui Wuxi Institute of Oil Geology Sinopec Wuxi 214151 China Geoscience Department of Zhejiang University Hangzhou 310028 China Geochemistry Department of Yangtze University Jingzhou 434023 China Chinese University of Petroleum Beijing 102249 China Research Institute of Petroleum Exploration and Development Petro China Beijing 100083 China Lanzhou Institute of Geology Chinese Academy of Sciences Lanzhou 730000 China

Study indicates that the elements rich in marine floor hydrothermal fluids have a positive in- fluence, not only on total organic carbon (TOC), but also on the abundance of SiO2 in some Middle-Upper Proterozoic strata. The TOC bears a better positive correlation with abundance of SiO2. By the correlation analysis between organic matter and sea-floor hot fluid characterized trace elements such as P, Cu, Zn, Ni, Ba, etc in marine carbonate rocks, we conclude that organic matter enrichment of carbonate rocks were related to marine floor hydrothermal activity in a part of layers. Some thin-layered cherts, which were thought to be the indicators of hydrothermal activity, frequently occurring in Gaoyuzhuang, Wumishan, Tieling and Xiamaling formation support our conclu- sion. With the increasing of trace elements in marine carbonate rocks, the TOC and Fe/Ti ratio is creasing. In contrast, the Al/(Al+Fe+Mn) ratio is usually de- creasing.

关键词：华北北部元古代碳酸盐岩有机物质海底热流体主要元素微量元素

全结晶MCM-22分子筛催化剂的制备及其催化性能

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化工进展 2024年第1期43卷 285-291页

作者：王一棪王达锐沈震浩何俊琳孙洪敏杨为民中石化(上海)石油化工研究院有限公司绿色化工与工业催化全国重点实验室上海201208

采用水热晶化法高效合成了全结晶的MCM-22分子筛催化剂,利用X射线衍射、扫描/透射电子显微镜、NH3-TPD等手段对催化剂的晶体结构、微观形貌、酸性质等进行了综合表征,并考察了催化剂在苯和乙烯液相烷基化制乙苯反应中的催化性能。结果表... 详细信息

采用水热晶化法高效合成了全结晶的MCM-22分子筛催化剂,利用X射线衍射、扫描/透射电子显微镜、NH3-TPD等手段对催化剂的晶体结构、微观形貌、酸性质等进行了综合表征,并考察了催化剂在苯和乙烯液相烷基化制乙苯反应中的催化性能。结果表明,该全结晶MCM-22分子筛催化剂在160℃条件下40h即可完成晶化,相对结晶度达到100%。制得的分子筛为薄片层状结构,由100%活性组分组成。晶化后的催化剂成品仍维持条状形貌,机械强度达到82N/cm,满足工业应用需求。将该全结晶MCM-22分子筛催化剂应用于液相烷基化反应时,在反应温度180℃、反应压力3.5MPa、乙烯质量空速1h-1、苯与乙烯摩尔比为2.5的条件下运行1000h,催化剂表现出良好的反应活性、选择性和稳定性,乙烯转化率接近100%,乙基选择性约99.84%,重组分含量始终维持在1000μL/L左右。

关键词：水热结晶分子筛催化剂苯

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分子筛催化反应过程高效化的技术进展

化工进展 2024年第1期43卷 1-18,F0003页

作者：王达锐孙洪敏王一棪唐智谋李芮范雪研杨为民中石化(上海)石油化工研究院有限公司绿色化工与工业催化全国重点实验室上海201208

以分子筛为活性组分制成的催化剂广泛应用于石油化工领域。设计开发高效能的分子筛催化剂来实现化学反应过程高效化,可为化工企业节能降耗和降本增效提供技术支撑。种类繁多的催化反应对分子筛提出了不同的需求,本文从四个方面综述了开... 详细信息

以分子筛为活性组分制成的催化剂广泛应用于石油化工领域。设计开发高效能的分子筛催化剂来实现化学反应过程高效化,可为化工企业节能降耗和降本增效提供技术支撑。种类繁多的催化反应对分子筛提出了不同的需求,本文从四个方面综述了开发高效分子筛的技术进展,包括硅铝分子筛酸性活性中心调变和钛硅分子筛Ti活性中心构建的活性中心修饰方案、微孔分子筛内部造介孔和介孔SiO2包覆分子筛的孔道结构调变方案、制备纳米级颗粒和控制择向性生长的晶体形貌控制方案、创制新结构分子筛的拓扑结构创新方案,探讨了分子筛催化剂的未来发展方向,指出我国仍需在该领域持续加强技术创新,尤其是原始创新,做到产学研深度结合,将先进技术转化为可实际操作的方案,最终服务于生产装置、实现工业应用是提高石油化工技术进步的重点工作。

关键词：分子筛催化剂多相反应活性中心孔道结构晶体形貌新型结构

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Energy Conservation is Crucial to Chinese Energy Strategy

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China Oil & Gas 2005年第2期12卷 18-21页

作者： wang darui Research Institute of Exploration and Development PetroChina

After the efforts of several generations,Chinese oil industry has seen remarkable success making China the fifth largest oil producer of the world;by the year 2004,China had become a large natural gas producer with the annual output of 50 billion cubic meters,all of which have laid down a sound foundation for the rapid development of national economy and the sustainment of people＇s general living standard.

关键词：中国能源工业能源战略市场需求