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SULFUR-RESISTANT BIMETALliC NOBLE METAL CATALYSTS FOR AROMATIC HYDROGENATION OF DIESEL FUEL

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石油学报（石油加工） 2001年第1期17卷 25-29页

作者： XIA Guo-fu HU lin-jie NIE Hong SHI Ya-hua li da-dong Research Institute of Petroleum Processing Beijing 100083China

Y zeolite supporting noble metal catalysts, as the important industrial catalysts for aromatics hydrogenation, have received increasing attention in recent years. Pd M/Y bimetallic catalysts, where M is non noble metal element, were prepared to investigate the effects of the addition of a second metal. Pd M/Y catalysts were evaluated under the following conditions: H 2 pressure 4.2 MPa, MHSV 4.0 h -1 , sulfur content in feed 3000 μg/g. The microreactor results indicated that the second metal remarkably affects the hydrogenation activity of Pd/Y catalysts. Among them, Cr and W improve the sulfur resistance of Pd/Y, but La, Mn, Mo and Ag make the sulfur resistance worse and the second metals have no evident influence on product selectivity and acidic properties of the catalysts.

关键词： aromatic hydrogenation sulfur resistance noble metal catalysts

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21世纪的炼油技术与催化

石油学报（石油加工） 2005年第3期21卷 17-24页

作者：李大东中国石油化工股份有限公司石油化工科学研究院北京100083

市场对炼油工业的发展起导向和推动作用。为了满足市场需求,炼油工业开发了一系列生产清洁燃料和化工原料的新技术。重点介绍了多产异构烃的催化裂化技术(MIP)、催化汽油加氢异构脱硫降烯烃技术(RIDOS)、催化汽油选择性加氢脱硫技术(RS... 详细信息

市场对炼油工业的发展起导向和推动作用。为了满足市场需求,炼油工业开发了一系列生产清洁燃料和化工原料的新技术。重点介绍了多产异构烃的催化裂化技术(MIP)、催化汽油加氢异构脱硫降烯烃技术(RIDOS)、催化汽油选择性加氢脱硫技术(RSDS)、中压加氢生产优质柴油成套技术(RICH)、柴油超深度脱硫技术(RTS)等生产清洁燃料技术,渣油加氢处理重油催化裂化双向组合技术(RICP)等重油深度转化技术,催化裂解和催化热裂解技术(DCC和CPP)、中压加氢改质技术(MHUG)和中压加氢裂化技术(RMC)等炼油化工结合技术以及催化技术的集成——催化丙烯技术(SHMP)。这些新技术包含了催化新工艺和催化新材料,体现了催化技术创新对于炼油技术进步的先导作用。根据市场的需求和炼油工业的发展趋势,分析了未来催化技术发展的前景。

关键词：市场催化技术催化剂清洁燃料炼油-化工结合

NEW BREAKTHROUGH OF HEAVY OIL UPGRADING TECHNOLOGY——INTEGRATION PROCESSES OF VRFCC/RMC FOR PRODUCTION OF HIGH VALUE PRODUCTS AND STEAM CRACKING FEED

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石油学报（石油加工） 2000年第4期16卷 91-93页

作者： li da dong 1,ZHONG Xiao xiang 1,li Zhi qiang 2,CAO Xiang hong 3 (1 RIPP SINOPEC,Beijing 100083,China 2 BDI SINOPEC,Beijing 100724,China 3 SINOPEC,Beijing 100029,China) RIPP SINOPEC China 北京 100083 BDI SINOPEC 北京 100724 SINOPEC 北京 100029

An integration process of vacuum residue FCC(VRFCC)and moderate pressure hydro cracking(RMC),developed by RIPP and BDI,opens a new route for maximizing production of both high value products and the feed for steam cracking(SC).VRFCC technology has been put on stream at Yanshan Petrochemical Co (YPC)since November 1998.A 79 2%(mass percent)high value product(LPG+GSL+LCO)was surprisingly made on the test run from a resid feedstock of 85 0%(mass percent)daqing crude VR *** facility coking was found during the *** is a renovating moderate pressure hydrocracking technology,the end point of the heavy VGO feed is as high as 534 ℃,and the RMC catalyst performance shows high hydrodenitrogenation activity and high ring opening *** process highlights the flexibility of product slates——maximum premium mid distillates yield(38 0%(mass percent))and/or maximum hydro unconverted bottoms(Hydro BTMs)yield(50%～70%(mass percent)).Over 30%(mass percent)ethylene was produced from SC process based on Hydro BTMs feed. The application of VRFCC/RMC integration at YPC not only covers the shortages of SC feed for 660 kt/a ethylene production capacity,but also increases the total yield of premium fuel products.

关键词：高附加值产品石油产品炼油技术

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基于视觉的多无人机协同目标跟踪控制律设计

系统工程与电子技术 2012年第2期34卷 364-368页

作者：李大东孙秀霞李湘清空军工程大学工程学院陕西西安710038

针对基于视觉的多无人机协同目标跟踪控制律设计问题,对无人机协同控制策略进行了研究。分别提出了两架及多架无人机协同速度控制律,使无人机能够动态调整速度,以较低速度跟踪目标。针对多架无人机提出了一种最小化各无人机到目标夹角... 详细信息

针对基于视觉的多无人机协同目标跟踪控制律设计问题,对无人机协同控制策略进行了研究。分别提出了两架及多架无人机协同速度控制律,使无人机能够动态调整速度,以较低速度跟踪目标。针对多架无人机提出了一种最小化各无人机到目标夹角误差平方和的夹角误差定义方法,提高了无人机协同效率。仿真实验验证了本文提出的夹角误差定义方法和协同控制律的有效性。

关键词：计算机视觉速度控制律夹角误差

Effect of lamellarization on the microstructure and mechanical properties of marine 10Ni5CrMoV steel

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 402-413页

作者： Tao Zou Yanwu dong Zhouhua Jiang Shuyang Du Yushuo li School of Metallurgy Northeastern UniversityShenyang 110819China Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819China Key Laboratory for Ecological Metallurgy of Multimetallic Ores(Ministry of Education) Northeastern UniversityShenyang 110819China

Multistage heat treatment involving quenching(Q),lamellarizing(L),and tempering(T)is applied to marine 10Ni5CrMoV *** microstructure and mechanical properties were studied by multiscale characterizations,and the kinetics of reverse austenite transformation,strain hardening behavior,and toughening mechanism were further *** lamellarized specimens possess low yield strength but high toughness,especially cryogenic *** leads to the development of film-like reversed austenite at the martensite block and lath boundaries,refining the martensite structure and lowering the equivalent grain *** analysis of austenite reversion based on the JMAK model shows that the isothermal transformation is dominated by the growth of reversed austenite,and the maximum transformation of reversed austenite is reached at the peak temperature(750℃).The strain hardening behavior based on the modified Crussard-Jaoul analysis indicates that the reversed austenite obtained from lamellarization reduces the proportion of martensite,significantly hindering crack propagation via martensitic transformation during the *** a consequence,the QLT specimens exhibit high machinability and low yield *** with the QT specimen,the ductile-brittle transition temperature of the QLT specimens decreases from-116 to-130℃due to the low equivalent grain size and reversed austenite,which increases the cleavage force required for crack propagation and absorbs the energy of external load,*** work provides an idea to improve the cryogenic toughness of marine 10Ni5CrMoV steel and lays a theoretical foundation for its industrial application and comprehensive performance improvement.

关键词： 10Ni5CrMoV steel lamellarizing reversed austenite cryogenic toughness ductile-brittle transition temperature

Micro-strain regulation strategy to stabilize perovskite lattice based on the categories and impact of strain on perovskite solar cells

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Journal of Energy Chemistry 2025年第1期100卷 578-604页

作者： Caixia li Wenwu liu Shiji da lingbin Kong Fen Ran State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals Lanzhou University of Technology School of Materials Science and Engineering Lanzhou University of Technology

Photovoltaic metal halide perovskite solar cells(PSCs) convert light to electricity more efficiently than crystalline silicon cells, and the cost of materials used to make them is lower than that of silicon *** efficiency is not a core issue affecting the application of perovskite solar cells in special *** present, stability is the major technical encounters that hinders its further commercial development. Microstrain in PSCs is currently a significant factor responsible for the device's instability. Strain-induced ion migration is widely believed to accelerate perovskite degradation even when external stimuli are ***, it is imperative to study strain to enhance the stability of PSCs. This paper reviews recent developments to understand strain's origin and effect mechanisms on performance of PSCs, including ion migration,failure behavior, defect formation, and its effect on photoelectric properties, stability, and ***, several well-known strain management strategies are systematically introduced based on the strain effect mechanism and strain engineering on the film, providing more clues for further preparation with increased stability. The manipulation of external physical strain applied from films to entire devices has been extensively studied. Furthermore, recommendations for future research directions and chemical approaches have been provided. It is emphasized that strain engineering plays a crucial role in improving the efficiency and longevity of PSCs. Tensile strain causes rapid degradation, while moderate compressive strain and external strain control could improve properties and stability. Efforts should focus on controlling compressive strain to mitigate residual tensile strain and introducing it in a controlled manner. Future research endeavors may focus on exploring these pathways to improve the efficiency and lifespan of PSCs.

关键词： Halide perovskite solar cells Strain origins Strain effects Strain management

HYDROGENATION TECHNOLOGIES FOR PRODUCTION OF CLEAN GASOliNE AND DIESEL FUEL IN RIPP

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石油学报（石油加工） 2003年第1期19卷 48-53页

作者： NIE Hong, SHI Ya hua, SHI Yu lin, KANG Xiao hong, li da dong (Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China) Research Institute of Petroleum Processing SINOPEC 北京 100083

It is necessary to produce low sulfur /low olefin gasoline and low sulfur /low aromatics diesel fuel for reducing the air pollution from automobile exhausted gas. Major component in gasoline pool in China is from FCCU, resulting in higher olefin content in product gasoline. The difficult point in producing clean gasoline is to lower down the olefin content while retaining RON of gasoline as much as possible. Based on the properties of gasoline, RIPP has developed technology (RIDOS) for reducing both sulfur and olefin contents by the same process. The technology shows that its hydro iso cracking performance to some extent can reduce the olefin content from 50%～60% to less than 20%, and road octane loss is less than 2. In deep hydro desulfurization of diesel fuel, the key point is to remove dibenzhothiophen (DBT) with methyl substitute in 4 and 6 positions. To solve this problem, RN 10 catalyst with high hydrogenation activity was developed by reinforcing the hydrogenation function. The catalyst featured with less spatial hindrance effect after the DMDBT was hydrogenated, meanwhile, it has high activity in aromatics saturation. Diesel fuel with low sulfur and low aromatics content can be manufactured from SRGO or FCC diesel fraction. RIPP has deve loped more technologies such as MHUG, RMC and RICH for production of clean diesel fuel with low sulfur/aromatics and low density with increased cetane number.

关键词：清洁汽油清洁柴油加氢炼油 FCCU

Microstructural evolution during the progressive transformation-induced plasticity effect in a Fe-0.1C-5Mnmedium manganese steel

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 369-379页

作者： Mei Zhang Wenhao li Yangfei Chen Yang Jiang Xiaofei Guo Han dong School of Materials Science and Engineering Shanghai UniversityShanghai 200444China State Key Laboratory of Advanced Special Steel Shanghai UniversityShanghai 200444China

The microstructural evolution of a cold-rolled and intercritical annealed medium-Mn steel(Fe-0.10C-5Mn)was investigated during uniaxial tensile ***-situ observations under scanning electron microscopy,transmission electron microscopy,and X-ray diffraction analysis were conducted to characterize the progressive transformation-induced plasticity process and associated fracture initiation *** findings were discussed with the local strain measurements via digital image *** results indicated that Lüders band formation in the steel was limited to 1.5%strain,which was mainly due to the early-stage martensitic phase transformation of a very small amount of the less stable large-sized retained austenite(RA),which led to localized stress concentrations and strain hardening and further retardation of *** small-sized RA exhibited high stability and progressively transformed into martensite and contributed to a stably extended Portevin-Le Chatelier *** volume fraction of RA gradually decreased from 26.8%to 8.2%prior to *** the late deformation stage,fracture initiation primarily occurred at the austenite/martensite and ferrite/martensite interfaces and the ferrite phase.

关键词： medium-Mn steel retained austenite progressive transformation-induced plasticity effect local strain fracture initiation

基于线性化反馈的滑模变结构重装空投纵向控制律设计

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控制理论与应用 2013年第1期30卷 54-60页

作者：李大东孙秀霞董文瀚徐光智空军工程大学航空航天工程学院陕西西安710038

针对重装空投过程中,重型货物持续移动及瞬间离机严重影响载机的安全性等问题,提出了基于线性化反馈和滑模变结构控制相结合的控制律设计方法,利用非线性多输入多输出反馈线性化完成系统解耦线性化,在此基础上采用滑模变结构控制设计系... 详细信息

针对重装空投过程中,重型货物持续移动及瞬间离机严重影响载机的安全性等问题,提出了基于线性化反馈和滑模变结构控制相结合的控制律设计方法,利用非线性多输入多输出反馈线性化完成系统解耦线性化,在此基础上采用滑模变结构控制设计系统内环速度与俯仰姿态跟踪控制器,保证了系统鲁棒性,结合外环PID高度保持控制器完成整个飞行控制系统的设计.最后,仿真验证了该控制器鲁棒性强,且满足空投任务战技指标要求.

关键词：重装空投非线性反馈线性化滑模变结构控制