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Chinese Journal of Polymer Science 2018年第11期36卷 1207-1207,1208-1216页

作者： wei Zhang Bin-Bo Jiang Jian Ye zu-wei liao Zheng-Liang Huang Jing-Dai Wang Yong-Rong Yang Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology State Key Laboratory of Chemical Engineering College of Chemical and Biological Engineering Zhejiang University

In this study, a series of aryloxy-aluminoxanes originated directly from the hydrolysis of reaction products of A1Me3 and phenols were synthesized, which could serve as effective polymer-retarding activators for the iron-catalyzed ethylene oligomerization. The molar ratios of [PhOH]/[AlMe3] and [H2O]/[Al] during the preparation were explored and their impacts on the oligomerization activity and product distribution were discussed. To obtain the effective activators with good polymer-retarding effect and relatively high activity, the optimized conditions were proposed to be [PhOH]/[AlMe3] = 0.5 and [H2O]/[Al] = 0.7. Various aluminoxanes with different [-OH] sources confirmed the importance of using phenols in preparing the effective polymer-retarding activators. By utilizing these aryloxy-aluminoxanes, the mass fraction of polymers in the total products could be reduced to lower than 1.0 wt%, which is much lower than that of the MAO-activated systems （〉 30 wt%）. This is a potential benefit for the industrial application of the iron-catalyzed oligomerization process.

关键词： Ethylene oligomerization Bis(imino)pyridyl iron catalysts Aryloxy-aluminoxanes Phenols Trimethylaluminum hydrolysis

Determination of particle size distribution by multi-scale analysis of acoustic emission signals in gas-solid fluidized bed

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2011年第4期12卷 260-267页

作者： Cong-jing REN Jing-dai WANG Di SONG Bin-bo JIANG zu-wei liao Yong-rong YANG State Key Laboratory of Chemical Engineering Department of Chemical and Biochemical Engineering Zhejiang University Hangzhou 310027 China

Particle size distribution(PSD) is an important parameter in the process of fluidization,and it always plays a crucial role in a gas-solid fluidized system.A PSD model for on-line PSD determination based on acoustic emission(AE) measurement was developed according to the mechanism of particle collision with the inner wall of the cylinder and multi-scale wavelet decomposition *** PSD model illuminates the quantitative relationship between the energy percentage of AE signals for different scales and the PSD,which indicates the feasibility of the application of the PSD *** were undertaken both in lab and plant gas-solid fluidized setup with polyethylene particles,and the parameters of the PSD model were calibrated and *** experimental conditions and results proved that the PSD model was suitable for on-line measurement and was sufficiently sensible and *** agglomeration,the PSD model also showed exact serviceability on detecting the onset of agglomeration by abnormal PSD,and the result agreed with that from the radiation ***,AE measurement was found to be a reliable and credible means for understanding the PSD information that affects the behavior of a system,which can provide valuable guidance for practical applications.

关键词： Particle size distribution(PSD) Acoustic emission(AE) Fluidized bed Multi-scale Agglomeration

Catalytic effects of V_(2)O_(5) on oxidative pyrolysis of spent cation exchange resin

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2021年第2期22卷 94-105页

作者： Qi SONG Jian-hua SHEN Yong YANG Yao YANG Bin-bo JIANG zu-wei liao Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology Zhejiang UniversityHangzhou 310027China College of Chemical and Biological Engineering Zhejiang UniversityHangzhou 310027China Stale Key Laboratory of Chemical Engineering College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China

Pyrolysis is a cost-effective and safe method for the disposal of radioactive spent *** this work,the catalytic effects of V_(2)O_(5) on the pyrolysis of cation exchange resin are investigated for the first *** results show that it is a better catalyst than others so far studied and achieves a lowering of final pyrolysis temperature and residual rate simultaneously when aided by physical *** maximum reductions of the final pyrolysis temperature and the residual rate are 173℃and 11.9%(in weight),*** the action of V_(2)O_(5),low-temperature(445℃)removal of partial sulfonic acid groups occurs and the pyrolysis of the resin copolymer matrix is *** is demonstrated by the analysis of pyrolysis residues at different temperatures by X-ray photoelectron spectroscopy(XPS)and element *** catalytic activity of V_(2)O_(5) is determined by effects both at acid sites and oxidation-reduction centers via H2-TPR(temperature programmed reduction),V_(2)-TPD(temperature programmed desorption),CV_(2)-TPD,and *** catalytic effect of oxidation-reduction centers in V_(2)O_(5) is achieved by close contact with the sulfur bond through chemisorption under the effect of acid sites.V_(2)O_(5) is also believed to be the reason for the removal of partial sulfonic acid groups at lower temperatures(445℃).V_(2)O_(5) is an effective catalyst for spent resin pyrolysis and can be further applied in industry.

关键词： Waste disposal Cation exchange resin V2O5 Catalysis Oxidative pyrolysis

A six-variable quasi-3D isogeometric approach for free vibration of functionally graded graphene origami-enabled auxetic metamaterial plates submerged in a fluid medium

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 157-176页

作者： wei CHEN Zhihong TANG Yufen liao Linxin PENG College of Civil Engineering University of South China College of Civil Engineering and Architecture Guangxi University Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education Guangxi University

This paper presents, for the first time, an effective numerical approach based on the isogeometric analysis(IGA) and the six-variable quasi-three dimensional(3D)higher-order shear deformation theory(HSDT) to study the free vibration characteristics of functionally-graded(FG) graphene origami(GOri)-enabled auxetic metamaterial(GOEAM) plates submerged in a fluid medium. The plate theory incorporates the thickness stretching and the effects of transverse shear deformation without using any shear correction factors. The velocity potential function and Bernoulli's equation are used to derive the hydrodynamic pressure acting on the plate surface. Both horizontally and vertically immersed plate configurations are considered here in the form of inertia *** plates are composed of multilayer GOEAMs, with the GOri content varying through the plate's thickness in a layer-wise manner. This design results in graded auxetic *** material properties are evaluated by mixing rules and a genetic programming(GP)-assisted micromechanical model. The governing equations of motion for the FG-GOEAM plates immersed in a fluid medium are derived by Hamilton's principle. After validating the convergence and accuracy of the present model, a comprehensive parametric study is carried out to examine the effects of the GOri content, GOri distribution pattern, GOri folding degree, fluid level, immersed depth, and geometric parameter on the natural frequencies of the FG-GOEAM plates. The results show that the natural frequencies for the four GOri distribution patterns increase with the increase in the layer number when the lay number is fewer than 10, and then stabilize after the layer number reaches ***, in general, the natural frequency of the FG-GOEAM plate in a vacuum or fluid increases when the GOri content increases, while decreases when the GOri folding degree increases. Some additional findings related to the numerical results are presented in the conclusions. It is belie

关键词： free vibration functionally-graded (FG) graphene origami (GOri)-enabled auxetic metamaterial (GOEAM) plate hydrodynamic pressure isogeometric analysis (IGA) O321 quasi-three dimensional (3D) higher-order shear deformation theory (HSDT)

Modification of acidity in HZSM-5 zeolite for methane-methanol co-reaction

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2021年第2期22卷 106-115页

作者： Bing-jie ZHOU Zhi-xiang XI Yue YU Bin-bo JIANG Jing-dai WANG zu-wei liao Zheng-liang HUANG Yong-rong YANG Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology Department of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China State Key Laboratory of Chemical Engineering Zhejiang UniversityHangzhou 310027China

A co-reaction of methane with methanol over zeolite catalysts has emerged as a new approach to the long-standing challenge of methane ***,the effect of catalyst acid properties on the co-reaction has been rarely *** this study,a series of HZSM-5 zeolites with comparable diffusion abilities and various acidities were synthesized directly through steaming with 100%water vapor at 693 *** co-reaction of methane and methanol was subsequently ***?nsted acidity at 0.262 mmol/g was detected to reach the maximum methane conversion of 5.42%at 673 K,which was also the odd point in the relationship between acid concentration and C4 hydrogen transfer ***,the influence of methanol feed was investigated over parent and steamed ZSM-5 catalyst,with results showing that excessive acid sites or methanol molecules reduce methane *** is proposed that acid sites adsorbed with methanol molecules construct the methane activation ***,a proper design of zeolite acidity should be achieved to obtain higher methane conversion in the co-reaction process.

关键词： Methane conversion Methanol Co-reaction Acidity HZSM-5

模拟研究气液两相在带缩径管的90°弯管内的流动(英文)

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2017年第3期18卷 212-224页

作者： Dong-fang HU Zheng-liang HUANG Jing-yuan SUN Jing-dai WANG zu-wei liao Bin-bo JIANG Jian YANG Yong-rong YANG State Key Laboratory of Chemical Engineering College of Chemical and Biochemical Engineering Zhejiang University Hangzhou 310027 China Shanghai Key Laboratory of Catalysis Technology for Polyolefins Shanghai 200062 China

目的:90°弯管广泛应用于工业中的流体输送,但是流体在经过弯头时会由于离心力的作用而导致弯头下游管道内出现流体分布不均的现象,从而影响后续的生产过程。本文将实验和计算流体力学(CFD)模拟的方法结合研究缩径管对经过弯头后的流体... 详细信息

目的:90°弯管广泛应用于工业中的流体输送,但是流体在经过弯头时会由于离心力的作用而导致弯头下游管道内出现流体分布不均的现象,从而影响后续的生产过程。本文将实验和计算流体力学(CFD)模拟的方法结合研究缩径管对经过弯头后的流体整流作用并分析原因,以期为缩径管在工业中的应用提供一定的参考。创新点:1.提出在弯头后的管路中增加缩径管来调整流体的方法;2.在冷模实验数据验证模拟结果的正确性的基础上,根据CFD模拟得到的管道内的压力、流体速度、相分布及湍动能分布详细分析了缩径管能起整流作用的原因。方法:1.通过冷模实验所得的压力数据与模拟值进行对比,证明模拟所采用模型的正确性;2.通过对不同流体入口条件模拟结果的比较,找到缩径管的作用规律;3.通过CFD模拟得到管道内的压力、流体速度、相分布及湍动能,分析缩径管的整流原理。结论:1.模拟所采用的模型可较好地反映管道内的流体流动情况;2.缩径管能起到很好的整流效果;3.缩径管可使流体加速,促进流体的快速混合,因此能够使不稳定的流体快速达到稳定状态。

关键词： 90°弯管缩径管 CFD 均匀分布流体力学

从噪声到信息:基于声发射监控的聚烯烃流化床反应器新技术（英文）

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2017年第4期18卷 245-255页

作者： Hao-tong WANG Zheng-liang HUANG zu-wei liao Bin-bo JIANG Jing-dai WANG Yong-rong YANG Guo-dong HAN Bao-zhu YANG State Key Laboratory of Chemical Engineering & Department of Chemical and Biological Engineering Zhejiang University Tianjin Petrochemical Engineering Co.Ltd SINOPEC Shandong Qilu Petrochemical Engineering Co.Ltd SINOPEC

目的:在全球所有的合成树脂中,聚烯烃的产能位居榜首,在国民经济建设和社会发展中发挥着重要作用。但流化床聚合反应器内的高静电会引起颗粒团聚,一旦传热受阻,颗粒极易熔融结块,甚至导致装置爆聚停车。本研究旨在针对流化床聚合反应过... 详细信息

目的:在全球所有的合成树脂中,聚烯烃的产能位居榜首,在国民经济建设和社会发展中发挥着重要作用。但流化床聚合反应器内的高静电会引起颗粒团聚,一旦传热受阻,颗粒极易熔融结块,甚至导致装置爆聚停车。本研究旨在针对流化床聚合反应过程具有强放热、高静电、变粒径的特点,提出基于声发射技术的多种检测手段和信息提取方法。创新点:针对聚合过程的爆聚结块问题,本研究主要解决了以下难题:(1)流化床内颗粒和结块的原位表征技术缺失,难以检测;(2)颗粒熔融结块过程的在线干预机制不清楚,难以调控;(3)流动传热过程强耦合,反应器放大规律不明,导致反应器难放大等问题。方法:创立声发射信号的多尺度解析方法,通过小波分解和重标极差分析法分类重构将声发射信号分解为微尺度、介尺度和宏尺度信号;提出基于声发射检测的反应器操作优化技术,并通过建模确立流化床聚合反应器的时空产率数学模型。成果:新技术成功应用于"十一五"国家重点建设项目——天津百万吨乙烯工程相配套的年产30万吨气相法聚乙烯流化床反应器的设计建设。并且,新技术已成功应用于14套大型聚烯烃装置的设计或改造,所涉及的聚乙烯产能达263万吨。作者所在团队也因该技术发明获得了2016年度国家技术发明奖二等奖。

关键词：流化床声发射聚团介尺度放大

Research progress on piperidine-containing compounds as agrochemicals

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Chinese Chemical Letters 2025年第1期36卷 58-67页

作者： wei Sun Anjing liao Li Lei Xu Tang Ya Wang Jian Wu State Key Laboratory of Green Pesticide Key Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationGuizhou UniversityGuiyang 550025China

Piperidine is a crucial pharmacophore and a special scaffold in the realm of drug *** flexibility increases the molecule’s capability to bind to the *** piperidine-containing compounds are distinguished by their remarkable activity,and are increasingly becoming a vital category of *** this review,the research progress of piperidines in the discovery of pesticides was updated according to their active *** structure-activity relationships(SARs),and mechanisms of action of piperidine-containing compounds were also *** article is meant to enable readers to quickly understand piperidines,while providing ideas for creating piperidines with novel structures and unique mechanisms of action.

关键词： Piperidine Agrochemicals Biological activity Structure-activity relationships Mechanism of action

A new green approach to synthesizing MIP-202@porous silica microspheres for positional isomer/enantiomer/hydrophilic separation

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Chinese Chemical Letters 2025年第1期36卷 501-505页

作者： Zhefei Hu Jingwen liao Jiawen Zhou Lulu Zhao Yanjuan Liu Yuefei Zhang wei Chen Sheng Tang School of Chemistry and Environmental Engineering Hubei Key Laboratory of Novel Reactor and Green Chemical TechnologyWuhan Institute of TechnologyWuhan 430205China School of Pharmacy Linyi UniversityLinyi 276000China

Metal-organic frameworks(MOFs)with superior physicochemical properties have great potential for applications in chromatographic ***,currently popular methods for the synthesis of MOFbased silica composite materials usually require the use of harmful organic solvents and long-term hightemperature sealing *** order to respond to the needs of green chromatography,it is urgent to develop a new green organic-solvent-free strategy for the synthesis of MOF@SiO_(2)***-202 is a zirconium-MOF constructed from zirconium ion and l-aspartic acid,which features green synthesis as well as good hydrolytic stability and chemical *** this paper,SiO_(2)-NH_(2) was first prepared in a hydrophilic deep eutectic solvent,and then an amino acid-based MOF material(MIP-202)was modified on the surface of the SiO_(2)-NH_(2) in an aqueous solution to obtain a MIP-202@SiO_(2) composite *** multi-mode separation performance of MIP-202@SiO_(2) as a promising liquid chromatographic stationary phase was particularly evaluated and the separation mechanisms were *** MIP-202@SiO_(2) column exhibited excellent separation ability for aromatic positional *** addition,chiral enantiomers and hydrophilic analytes were also satisfactorily detected and *** work provides a new approach for the facile synthesis of MOF-based liquid chromatographic separation material by using green deep eutectic solvent and water as the reaction media.

关键词： Metal-organic framework Stationary phase Deep eutectic solvent Green chromatography High-performance liquid chromatography

Effect of rolling schedules on ridging resistance of ultra-thin ferritic stainless steel foil

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Journal of Iron and Steel Research International 2025年第1期32卷 198-214页

作者： Jing-wei Zhao Qing-zhong Xie Li-nan Ma Cun-long Zhou Zheng-yi Jiang Xi liao Xiao-guang Ma College of Mechanical and Vehicle Engineering Taiyuan University of TechnologyTaiyuan030024ShanxiChina Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment Ministry of EducationTaiyuan030024ShanxiChina National Key Laboratory of Metal Forming Technology and Heavy Equipment Ministry of Science and TechnologyTaiyuan030024ShanxiChina School of Mechanical Engineering Taiyuan University of Science and TechnologyTaiyuan 030024ShanxiChina School of Mechanical MaterialsBiomedical and Mechatronic EngineeringUniversity of WollongongWollongongNSW2522Australia Shanxi Taigang Stainless Steel Precision Strip Co. Ltd.Taiyuan 030006ShanxiChina

The effect of rolling schedules on the ridging resistance of ultra-thin ferritic stainless steel(FSS)430 foil was evaluated by studying the microstructure and *** results show that specimens processed with three-pass cold rolling under the reductions of 40%,40%and 31%,respectively,exhibit improved ridging resistance owing to the microstructural refinement and the texture structure optimization.A nearly 40%reduction of ridging height can be achieved using the proposed rolling schedule compared to the other two rolling *** addition,the effect of annealing temperature after cold rolling on the ridging resistance of FSS 430 foil is also found to be crucial,and an optimal annealing temperature of 900℃ is obtained for FSS 430 foil with high ridging ***,the improvement in the ridging resistance of FSS 430 foil can be attributed to the reduction in the fraction of{001}and{114}components by optimization of the rolling and annealing processes.

关键词： Ferritic stainless steel foil Ridging Cold rolling Annealing Microstructure Texture