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Energy Reviews 2024年第2期3卷 117-135页

作者： Jingjing Jia Zhenxin Li Yunrui Tian Xia Li Rui Chen Jiachen Liu Ji Liang Key Laboratory of Advanced Ceramics and Machining Technology Ministry of EducationSchool of Materials Science and EngineeringTianjin UniversityTianjinChina

The electrochemical production of hydrogen peroxide(H_(2)O_(2))by the two-electron oxygen reduction(2e^(-)-ORR)process has the advantages of high safety,low energy consumption,and environmental *** 2e^(-)-ORR,the catalyst/electrode is the key component as it strongly affects catalytic performance and *** materials have the advantages of high electronic conductivity,good structural stability,easy control of nanostructures,and low ***,it has been regarded as a promising catalyst/electrode material for the electrosynthesis of H_(2)O_(2)via 2e^(-)-*** addition,studies have also considered the optimization of the liquid/gas interface by tuning the electrode surface,electrolyte pH,and reactor configurations for further improving the activity and selectivity of *** this review,we provide an in-depth discussion of the recent research on the carbon-based electrocatalysts for 2e^(-)ORR,especially in terms of microenvironment tuning,catalyst/electrode interface engineering,and reactor design for achieving stable and efficient production of H_(2)O_(2).The challenges that we are still facing and the future development prospects will then be concluded,which we believe should help the future development in this field.

关键词： Oxygen reduction Hydrogen peroxide Carbon-based catalyst Electrode surface reactor design

High-Con cent rat ion Electrosynthesis of Formic Acid/Formate from CO_(2):reactor and Electrode design Strategies

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Energy & Environmental Materials 2023年第6期6卷 141-157页

作者： Yizhu Kuang Hesamoddin Rabiee Lei Ge Thomas E.Rufford Zhiguo Yuan John Bell Hao Wang Centre for Future Materials University of Southern QueenslandSpringfieldQLD 4300Australia Australian Centre for Water and Environmental Biotechnology(ACWEB formerly AWMC)The University of QueenslandSt.LuciaQLD 4072Australia School of Chemical Engineering The University of QueenslandBrisbaneQLD 4072Australia

The electrochemical CO_(2)reduction reaction(CO_(2)RR),driven by renewable energy,provides a potential carbon-neutral avenue to convert CO_(2)into valuable fuels and *** of CO_(2)into formic acid/formate is considered one of the economical and feasible methods,owing to their high energy densities,and ease of distribution and *** separation of formic acid/formate from the reaction mixtures accounts for the majority of the overall CO_(2)RR process cost,while the increment of product concentration can lead to the reduction of separation cost,*** this paper,we give an overview of recent strategies for highly concentrated formic acid/formate products in CO_(2)***_(2)RR is a complex process with several different products,as it has different intermediates and reaction ***,this review focuses on recent study strategies that can enhance targeted formic acid/formate yield,such as the all-solid-state reactor design to deliver a high concentration of products during the reduction of CO_(2)in the ***,some novel electrolyzers are introduced as an engineering strategy to improve the concentration of the formic acid/formate and reduce the cost of downstream ***,the design of planar and gas diffusion electrodes(GDEs)with the potential to deliver high-concentration formic acid/formate in CO_(2)RR is ***,the existing technological challenges are highlighted,and further research recommendations to achieve high-concentration products in CO_(2)*** review can provide some inspiration for future research to further improve the product concentration and economic benefits of CO_(2)RR.

关键词： electrochemical CO_(2)reduction reaction electrode design formic acid/formate high-concentration reactor design

Analysis and design of resistance-wire heater in MOCVD reactor

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Journal of Central South University 2014年第9期21卷 3518-3524页

作者：曲毓萱王斌胡仕刚吴笑峰李志明唐志军李劲胡莹璐 Advanced Technology Generalization Institute of CNGC The Center of Coordination and Support of State Administration of Science Technology and Industry for National Defence School of Information and Electrical Engineering Hunan University of Science and Technology School of Information Science and Engineering University of Jinan The 41st Institute of China Electronics Technology Group Corporation

Metal organic chemical vapor deposition(MOCVD) is a key equipment in the manufacturing of semiconductor optoelectronic devices and microwave devices in industry. Heating system is a vital part of MOCVD. Specific heating device and thermal control technology are needed for each new reactor design. By using resistance-wire heating MOCVD reaction chamber model, thermal analysis and structure optimization of the reactor were developed from the vertical position and the distance between coils of the resistance-wire heater. It is indicated that, within a certain range, the average temperature of the graphite susceptor varies linearly with the vertical distance of heater to susceptor, and with the changed distances between the coils; furthermore, single resistance-wire heater should be placed loosely in the internal and tightly in the external. The modulate accuracy of the temperature field approximately equals the change of the average temperature corresponding to the change of the coil position.

关键词： metal organic chemical vapor deposition (MOCVD) reactor design thermal analysis filament heating

Engineering design and numerical design for chemical looping combustion reactor: A review

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Energy Reviews 2024年第3期3卷 129-150页

作者： Xi Chen Rongchao Li Ye Tao Yongqi Tong Ao Li Daofeng Mei Haibo Zhao State Key Laboratory of Coal Combustion School of Energy and Power EngineeringHuazhong University of Science and TechnologyWuhan430074China Instituto de Carboquímica(ICB-CSIC) Miguel Luesma Castan450018ZaragozaSpain

Chemical looping combustion(CLC)has emerged as a cost-effective technology for carbon capture at the combustion *** reactor,being central to the implementation of CLC,primarily adheres to two technological pathways:the dual fluidized bed reactor and the packed bed ***,the intricate interaction between gas-solid reaction flow and heat/mass transfer processes in these reactors gives rise to diverse operational principles at both macroscopic and microscopic levels across various reactor forms and scales,making performance prediction ***,the rational design of CLC reactors poses a significant challenge in advancing this technology to commercial *** article offers an extensive review of the prevailing reactor designs in CLC,delving into reactor characteristics,pivotal aspects of the design process,methodologies,and representative studies in the *** predominant reactor design approaches are categorized into engineering and numerical *** former encompasses phenomenological and similarity analysis methods,whereas the latter consists of macroscopic and computational fluid dynamics simulation *** method possesses its theoretical framework,distinctive characteristics,appropriate applications,and respective advantages and *** practical applications,integrating these aspects is *** instance,the engineering design,which is less costly but also less precise,is effective for quickly screening numerous potential design *** contrast,the numerical design,despite its higher computational demand and greater model complexity,offers improved predictive accuracy and is optimal for validating and refining engineering design solutions.

关键词： Carbon capture Chemical looping combustion reactor design Engineering design Numerical design

Application of CoFe_(2)O_(4)-NiO nanoparticle-coated foam-structured material in a high-flux solar thermochemical reactor

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Science China(Technological Sciences) 2023年第11期66卷 3276-3286页

作者： ZHANG Hao ZHANG XiaoMi YANG DaZhi SHUAI Yong GUENE LOUGOU Bachirou PAN QingHui WANG FuQiang School of Electrical Engineering and Automation Harbin Institute of TechnologyHarbin 150001China School of Energy Science and Engineering Harbin Institute of TechnologyHarbin 150001China School of New Energy Harbin Institute of Technology at WeihaiWeihai 264209China

The splitting of carbon dioxide through the two-step solar thermochemical cycle presents enormous potential,for it holds the dual functionalities of solar fuel production and carbon-based energy ***,the industrialization of this technology is impeded by two critical factors:The absence of fully developed oxygen carriers and advanced reaction devices that deliver exceptional *** order to identify a potentially effective oxygen carrier,50 wt%NiO-modified Co Fe_(2)O_(4)is selected as the active component and characterized by means of thermogravimetry,scanning electron microscopy,and energy dispersive spectroscopy,so as to clarify its oxygen exchange capacity,micromorphology and elemental composition in high-temperature thermochemical ***,nanoparticle-coated foam-structured materials are prepared in combination with Si C ceramic foam for experimental testing in a high-flux solar *** results indicate that a peak CO yield of 1.96 m L min^(-1)g^(-1)can be gained in a 1500–1250 K preliminary test,demonstrating the application potential of the *** contrast to conventional redox materials,the CO_(2)activity of the materials synthesized in this study exhibits an enhancement with rising oxidation *** means that isothermal cycles can potentially achieve higher conversion and fuel yield than non-isothermal cycles,while simultaneously reducing the amount of irreversible heat loss during high-temperature *** the estimated steadystate thermal efficiency of the solar reactor can reach up to 42%,further optimization of the reactor design is necessary to enhance energy conversion efficiency,as it is partially limited by the dimensions of the reaction chamber.

关键词： solar thermochemistry CO_(2)splitting two-step redox cycle iron-base oxygen carrier reactor design

Dielectric barrier micro-plasma reactor with segmented outer electrode for decomposition of pure CO_(2)

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Frontiers of Chemical Science and Engineering 2021年第3期15卷 687-697页

作者： Baowei Wang Xiaoxi Wang Bo Zhang Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Key Laboratory for Green Chemical Process of Ministry of Education School of Chemical Engineering and PharmacyWuhan Institute of TechnologyWuhan 430205China

Four coaxial cylinder dielectric barrier discharge micro-plasma reactors were designed for the noncatalytic decomposition of pure CO_(2) into CO and O_(2) at low temperature and ambient *** influence of segmented outer electrodes on the electrical characteristics and the reaction performance was *** results indicated that the introduction of segmented outer electrodes can significantly promote the decomposition of CO_(2).Encouragingly,the highest conversion of 13.1% was obtained at an applied voltage of 18 kV,which was a substantial increase of 39.4% compared to the traditional *** with other types of dielectric barrier discharge plasma reactors,the proposed segmented outer electrode micro-plasma reactor can give a higher CO_(2) conversion and acceptable energy *** increase in conversion can be attributed mainly to the enhanced corona discharge caused by the fringe effect at electrode edges,the increase in energy density and the increase in the number of *** addition,detailed electrical characterization was performed to reveal some trends in the electrical behavior of proposed reactors.

关键词： CO_(2)decomposition dielectric barrier discharge segmented outer electrodes electrical analysis reactor design

Microwave vs conventional heating in hydrogen production via catalytic dry reforming of methane

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Resources Chemicals and Materials 2022年第3期1卷 290-307页

作者： Seyyedmajid Sharifvaghefi Ying Zheng PDF with Dr.Zheng's group at Department of Chemical and Biochemical Engineering Western UniversityLondonONN6A 3K7Canada Professor and Canada Research Chair FCAEFCICFIChemE(UK)FRSC(UK)Department of Chemical and Biochemical EngineeringWestern University1151 Richmond StreetLondonON N6A 3K7Canada

The world's energy systems are undergoing radical change driven by the commitments to achieve net zero emissions and energy independence. Development of clean hydrogen economy is of paramount importance and hydrogen is expected to play a more important role in the future energy market. An interesting way to produce hydrogen is via dry reforming reaction which uses two green house gasses (CH4 and CO_(2)) as feedstock. Dry reforming is a challenging reaction to scale-up due to its high endothermic and coke formation nature. Microwave has gained interest in the past years as a superior heating mechanism in catalytic reactions due to its capacity in enhancing conversions of reactants and selectivity of products, and suppression of coke formation. Such characteristics has made microwave an excellent alternative to conventional heating in dry reforming reaction. In this study, we aim to discuss different aspects of microwave heating technology and its application in the catalytic dry reforming of methane. The advantages of microwave-assisted methane reforming are discussed via the comparison to the conventional heating.

关键词： Microwave Conventional heating Dry reforming reactor design Catalyst

Distinct facets to enhance the process of hydrogen production via methanol steam reforming-a review

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Energy Storage and Saving 2022年第1期1卷 53-69页

作者： Hangyu Yu Yuanzhi Li Chao Xu Fei Jin Feng Ye Xin Li Key Laboratory of Condition Monitoring and Control for Power Plant Equipment of MOE North China Electric Power UniversityHuilongguanBeijing102206China Key Laboratory of Solar Thermal Energy and Photovoltaic System Institute of Electrical EngineeringChinese Academy of SciencesBeijing100190China

Methanol steam reforming manifests great potential for generating hydrogen owing to its lower reaction temper-ature(200-300°C)and higher hydrogen/carbon ratio comparing with ethanol and methane *** this case,methanol steam reforming is applied in various renewable energy systems to assist the energy conversion and improve the system *** performance of methanol steam reforming reaction strongly depends on the catalysts and reactor *** this paper,the development of the copper-based,the noble metal-based and the nanomaterial catalysts were summarized by analyzing the effects of different modification methods,which indicates that cutting the cost and simplifying the manufacturing process are the future goal of catalyst ***,the reaction mechanism of different catalyst types was *** the reactor performance,conventional,miniature,micro,and membrane reactors were discussed and compared,where conventional reac-tor with high CO tolerance is more suitable for industrial application while membrane reactor with high H 2 purity and compact structure is ideal for fuel cell *** integration of the methanol steam reforming system into renewable power systems was reviewed as *** steam reforming technology is of great potential in exhaust heat recovery,cogeneration system and other renewable energy field,where more comprehensive researches should be performed.

关键词： Methanol steam reforming Catalyst modification reactor design System integration Hydrogen

design of Continuously Adjustable reactors Using SABER Simulation Software

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Design of Continuously Adjustable Reactors Using SABER Simul...

New Build in the New Millennium

第五届全球智能控制与自动化大会会议

作者： Heping Liu Yu Jiang and Yilin Ye The Key Laboratory of High Voltage Engineering and Electrical New Technology Ministry of Education Chongqing University Chongqing 400044 P.R China Heng-Ming Tai Department of Electrical Engineering University of Tulsa Tulsa OK USA

＜正＞ This paper presents a hybrid method for the design of continuously adjustable reactors using SABER simulation package based on the conventional design results. This approach enables the designer to do modeling and parameter modification in an accurate and flexible manner. It also allows the designer to consider the impact of nonlinear effects and evaluate system performance in the course of reactor design. The designed reactor improves the performance and reliability of distribution networks, and overcomes the slow-response drawback of existing on-line adjustable arc suppression coils. Simulation results are given to illustrate the effectiveness of the proposed design method.

关键词： reactor design arc suppression coil modeling simulation

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New Build in the New Millennium