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Fabrication of LiOH-metal organic framework derived hierarchical porous host carbon matrix composites for seasonal thermochemical energy storage

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Nano Research 2022年第9期15卷 8028-8038页

作者： Xiangyu Yang Shijie Li Jianguo Zhao Hongyu Huang lisheng deng School of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China Institute of Carbon Materials Science Shanxi Datong UniversityDatong 037009China Key Laboratory of Renewable Energy Guangdong Provincial Key Laboratory of New and Renewable Energy Research and DevelopmentGuangzhou Institute of Energy ConversionChinese Academy of SciencesGuangzhou 510640China Guangdong Intelligent Filling Technology Limited Company Foshan 528137China

By virtue of its long lifespan and outstanding storage intensity with near-zero heat loss,salt hydrate thermochemical energy storage(TES)materials provide a feasible option for the effective use of renewable energy and overcoming its unsynchronized supply and ***,an activated porous carbon originating from the zeolite imidazolate framework(ZHCM)is fabricated and served as the carbon matrix for the LiOH TES *** as-synthesized Li/ZHCM2-40 not only has excellent storage intensity(maximum 2414.2 kJ·kg^(−1))with low charging temperature,but also shows great hydration properties stemming from the ultrahigh surface area and hierarchical porous structure of ***,this composite material exhibits superior thermal conductivity,while its storage intensity is only attenuated by 10.2%after 15 times of consecutive charge-discharge process,revealing its outstanding cycle *** the numerical simulation results also demonstrate its superior heat transfer *** developed LiOH TES composite may afford a new avenue for efficient low-grade thermochemical energy storage and liberate the possibility of further exploration of metal organic frameworks derived porous carbon matrix in the future.

关键词： LiOH TES composite ZIF-8 derived porous carbon low-grade thermochemical energy storage cycle stability

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Development of covalent-organic frameworks derived hierarchical porous hollow carbon spheres based LiOH composites for thermochemical heat storage

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Journal of Energy Chemistry 2022年第10期31卷 301-310,I0007页

作者： Xiangyu Yang Shijie Li Jianguo Zhao Hongyu Huang lisheng deng Institute of Carbon Materials Science Shanxi Datong UniversityDatong 037009ShanxiChina School of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024ShanxiChina Key Laboratory of Renewable Energy Guangdong Provincial Key Laboratory of New and Renewable Energy Research and DevelopmentGuangzhou Institute of Energy ConversionChinese Academy of SciencesGuangzhou 510640GuangdongChina Guangdong Intelligent Filling Technology Limited Company Foshan 528137GuangdongChina

Under the joint assistance of its excellent storage strength, accessible long storage lifespan, and high heat utilization efficiency, salt hydrate-based thermochemical heat storage(THS) materials give renewable energy an important outlet to alleviate the pressure of underutilization. Herein, an activated hollow spherical carbon(AHSC) with hierarchical porous architectures converted from covalent-organic frameworks(COFs) is constructed and utilized as the supporting matrix for Li *** composite material for the first time. The obtained Li/AHSC_(3) composites have distinguished hydration performance while manifesting impressive storage ability up to 1916.4 k J kg^(-1)with low operating temperature stemming from the collective effect of the void spherical framework, multimodal porosity, and high surface area of AHSC3. And the Li/AHSC3-40 composite with evidently progressed thermal conductivity is capable of realizing 94.5% heat preservation after twenty-five adsorption-desorption cycles, exhibiting its eminent cyclability and great heat transfer performance. This study not only brings new hope for overcoming the underutilization of low-grade heat but also may enlighten new ideas for enriching the application scenarios of COFs-derived carbonaceous materials.

关键词： Activated hollow spherical carbon Hierarchical porous architectures LiOH·THS composite material Storage ability COFs-derived carbonaceous materials

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Chemical looping gasification of sewage sludge using copper slag modified by NiO as an oxygen carrier

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Chinese Journal of Chemical Engineering 2021年第1期34卷 335-343页

作者： Nanhang Dong Ruiqiang Huo Ming Liu lisheng deng Zhengbing deng Guozhang Chang Zhen Huang Hongyu Huang School of Energy and Power Engineering Northeast Electric Power UniversityJilin 132012China Key Laboratory of Renewable Energy Chinese Academy of Sciences(CAS)Guangzhou Institute of Energy ConversionGuangzhou 510640China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou 511458China China United Engineering Corporation Limited Hangzhou 310052China State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical EngineeringNingxia UniversityYinchuan 750021China Dalian National Laboratory for Clean Energy CASDalian 116023China

Chemical looping gasification(CLG) provides a novel approach to dispose the sewage *** order to improve the reactivity of the calcined copper slag,NiO modification is considered as one of the good *** copper slag calcined at 1100℃ doped with 20 wt% NiO(Ni20-CS) was used as an oxygen carrier(OC) in sludge CLG in the *** modification of NiO can evidently enhance the reactivity of copper slag to promote the sludge conversion,especially for sludge char *** carbon conversion and valid gas yield(V_(g)) increase from 67.02% and 0.23 m^(3)·kg^(-1) using the original OC to 78.34% and 0.29 m^(3)·kg^(-1) using the Ni20-CS OC, *** increase of equivalent coefficient(Ω) facilitates the sludge conversion and a suitable Ω value is determined at 0.47 to obtain the highest valid gas yield(0.29 m^(3)·kg^(-1)).A suitable steam content is assigned at 27.22% to obtain the maximum carbon conversion of 87.09%,where an acceptable LHV of 12.63 MJ·m^(-3) and Vg of 0.39 m^(3)·kg^(-1)are *** the reactivity of Ni20-CS OC gradually decreases with the increase in cycle numbers because of the generation of NiFe_(2) O_(4-δ) species,the deposition of sludge ash containing many metallic elements is beneficial to the sludge *** a result,the carbon conversion shows a slight uptrend with the increase of cycle numbers in sludge *** indicates that the Ni20-CS sample is a good OC for sludge CLG.

关键词： Chemical looping gasification(CLG) Copper slag NiO Sludge Oxygen carrier(OC)

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Numerical Analysis of Conjugated Heat and Mass Transfer of Helical Hollow Fiber Membrane Tube Bank for Seawater Distillation

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Journal of Renewable Materials 2022年第7期10卷 1845-1858页

作者： Tao Zeng lisheng deng Jiechao Chen Hongyu Huang Hanli Zhuang Guangzhou Institute of Energy Conversion Chinese Academy of SciencesGuangzhou510640China Dongguan University of Technology Dongguan523808China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou511458China

A numerical study on the conjugated heat-mass transfer of helical hollow fiber membrane tube bank(HFMTB)for seawater desalination was carried *** and mathematical models of fluid flow,temperature and humidity distribution were constructed to investigate the influences of flow type,Reynolds number,and temperature on the conjugated heat-mass transfer performance of hollow fibers in the distillation membrane *** conjugated heat-mass transfer characteristics of HFMTB were discussed by utilizing the friction coefficient,Nusselt number(Nu),and Sherwood number(Sh).Results demonstrate that a distillation efficiency enhancement of 29%compared to the straight HFMTB has been detected for four-helical HFMTB configuration,though the friction coefficient of such a module is about 4 times of their straight *** values of average Nu and Sh numbers are increasing with tube number,which improves distillation *** effect of flow type has been studied by employing the upstream and downstream flows to the double-helical HFMTB,demonstrating upstream flow type is more conducive to the heat-mass transfer *** the outlet air humidity(ω)and distillation efficiency(η)decrease with the air-side Reynolds number(Rea)and inlet air temperature in the helical HFMTB while increasing with the solution-side Reynolds number(Re_(S))and inlet solution ***,the obtained results indicate that helical HFMTB applying upstream flow has great potential to achieve high-performance SGMD for seawater *** is anticipated that the present work can assist in a better understanding of the membrane desalination process in HFMTB and thus provide theoretical suggestions for further optimization and development.

关键词： Helical hollow fiber membrane tube bank seawater desalination membrane distillation numerical simulation heat and mass transfer

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Effects of Porous Graphene on LiOH Based Composite Materials for Low Temperature Thermochemical Heat Storage

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Journal of Renewable Materials 2022年第11期10卷 2895-2906页

作者： lisheng deng Hongyu Huang Zhaohong He Shijie Li Zhen Huang Mitsuhiro Kubota You Zhou Dezhen Chen Thermal and Environmental Engineering Institute School of Mechanical EngineeringTongji UniversityShanghai200092China Guangzhou Institute of Energy Conversion Chinese Academy of SciencesGuangzhou510640China Department of Chemical Engineering Graduate School of EngineeringNagoya UniversityNagoya464-8603Japan National Institute of Clean-and-Low-Carbon Energy Beijing102200China

Thermochemical heat storage material inorganic hydrate LiOH is selected as a promising candidate material for storing low-temperature heat energy because of its high energy density(1440 kJ/kg)and mild reaction ***,the low hydration rate of LiOH limits the performance of low temperature thermochemical heat storage system as well as the thermal *** this study,porous-graphene/LiOH composite thermochemical heat storage materials with strong water sorption property and higher thermal conductivity were synthesized by hydrothermal *** experimental results show that the hydration rate of the composites was greatly *** heat storage density of the composite materials was increased by 47%(from 661 kJ/kg to 974 kJ/kg).By combing the porous graphene,the thermal conductivity of composites with different contents were highly increased by 21.1%to 78.7%,but the increase of heat storage density is opposite to that of thermal *** development of high-performance materials for thermochemical heat storage should consider the relationship between the heat storage density and thermal conductivity of the material,and the thermal conductivity of the supporter needs to be further improved.

关键词： Thermochemical heat storage hydration thermal conductivity porous graphene

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Carbonation Reaction of Lithium Hydroxide during Low Temperature Thermal Energy Storage Process

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Journal of Renewable Materials 2021年第9期9卷 1621-1630页

作者： Jun Li Tao Zeng Noriyuki Kobayashi Rongjun Wu Haotai Xu lisheng deng Zhaohong He Hongyu Huang Guangzhou Institute of Energy Conversion Chinese Academy of SciencesGuangzhou510640China Guangdong Key Laboratory of New and Renewable Energy Research and Development Guangzhou510640China Southern Marine Science and Engineering Guangdong Laboratory Guangzhou511458China Department of Chemical Engineering Nagoya UniversityNagoya464-8603Japan

In order to apply lithium hydroxide(LiOH)as a low temperature chemical heat storage material,the carbonation reaction of LiOH and the prevention method are focused in this *** carbonation of raw LiOH at storage and hydration condition is experimentally *** results show that the carbonation reaction of LiOH with carbon dioxide(CO_(2))is confirmed during the hydration *** carbonation of LiOH can be easily carried out with CO_(2) at room temperature and *** can be carbonated at a humidity range of 10%to 20%,a normal humidity region that air can easily be ***,the carbonation reaction rate has not nearly affected by the increase of reaction *** improved storage method by storing LiOH at a low humidity less than 1.0%can be effectively prevented the carbonation of *** hydration reaction ratio of LiOH at the improved storage method shows a better result compared to the ordinary storage ***,the humidity should be carefully controlled during the storage of LiOH before hydration and dehydration reaction when apply LiOH as a low heat chemical storage material.

关键词： LiOH heat storage low temperature carbonation reaction hydration reaction

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Control of arsenic Pollution from waste gases during fabrication of semiconductor

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Journal of Environmental Sciences 1994年第1期6卷 123-127页

作者： Wen Ruimei Liang Junwu deng lisheng Peng Yongqing(Institute of Semiconductors, Chinese Academy of Sciences Beijing 100083,China)

The abatement technology of toxic arsenic pollution during fabrication of semiconductormaterials and devices has been studied.

关键词： Semiconductoro arsenic pollution abatement.

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渗透汽化分离水中有机物的研究进展

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材料导报 2019年第15期33卷 2610-2616页

作者：李兴邓立生何兆红黄宏宇中国科学院广州能源研究所广东省新能源和可再生能源研究开发与应用重点实验室

渗透汽化是一种分离液体混合物的新兴的选择性膜分离技术,其具有高效、经济、安全、清洁等优点,特别适用于蒸馏法难以分离的近沸点和恒沸点的液体混合物,该技术目前主要应用于有机溶剂中微量水的脱除以及水溶液中少量有机化合物的分离... 详细信息

渗透汽化是一种分离液体混合物的新兴的选择性膜分离技术,其具有高效、经济、安全、清洁等优点,特别适用于蒸馏法难以分离的近沸点和恒沸点的液体混合物,该技术目前主要应用于有机溶剂中微量水的脱除以及水溶液中少量有机化合物的分离。然而,渗透汽化脱除有机溶剂中微量水的研究是目前开展最多、最成熟,在工业中最先使用的技术;而关于渗透汽化分离水溶液中少量有机化合物的研究还比较少,还不够成熟,在工业中的应用还处于初步阶段,是未来重要的发展方向。与渗透汽化分离有机溶剂中的水相比,渗透汽化分离水中的有机物所需处理的对象更加复杂,对渗透汽化膜的选择性、适应性等方面的要求更高。目前针对渗透汽化分离水中有机物的研究大多是通过制备不同的渗透汽化膜来分离水中不同的有机化合物,并通过改变渗透汽化工艺条件、膜的制备条件等参数来研究渗透汽化过程中各个因素对渗透汽化性能的影响,从而提高渗透汽化分离水中有机物的效果。影响渗透汽化分离水中有机物的因素有很多,主要包括工艺条件和膜条件两方面。在工艺条件方面,各研究主要考察料液中有机物的浓度、料液温度和渗透压力对渗透汽化性能的影响,因为这几个因素在渗透汽化工艺中容易控制和调节,并且它们对渗透汽化工艺的影响效果明显。研究发现,对于分离水中的单一有机物时,随着料液中有机物浓度的增加,有机物的渗透通量会增加,但有机物的分离因子可能增大,也可能减小;随着料液温度的升高,有机物的渗透通量会增加,但有机物的分离因子可能增大,也可能减小;随着渗透压力的增加,渗透汽化性能会提高。在膜条件方面,各研究主要是制备一些新型的优先透有机物膜,或是对现有的优先透有机物膜进行改性,从而来分离水中不同的有机物。通过改善膜的制备条件、结构、性质等方面,来提高膜对有机物的亲和性和选择性,从而提高渗透汽化性能。本文介绍了渗透汽化分离水中有机物的特点、原理以及相关研究进展,综述了不同的渗透汽化膜及工艺条件对分离水中有机物渗透汽化性能的影响,总结了关于渗透汽化分离水中有机物的研究中的实验结果,并对渗透汽化分离水中有机物技术的应用前景进行了展望。

关键词：渗透汽化水溶液有机化合物膜工艺条件

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The composition of magmatic-hydrothermal fluids and their related metal mineralization

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Science China Earth Sciences 2025年第1期68卷 208-225页

作者： Qihai SHU Jun deng State Key Laboratory of Geological Processes and Mineral Resources School of Earth Sciences and Resources China University of Geosciences Frontiers Science Center for Deep-time Digital Earth China University of Geosciences

Magmatic hydrothermal deposits are important sources of many bulk, precious, and rare metals, and have attracted interest from both academic and industrial communities. However, it is still unclear if the major enrichment of the ore-forming metals occurs in the parental magma source region, during the magma evolution, or after the fluid exsolution. Fluid inclusions trapped in hydrothermal minerals crystallized in the early, high-temperature stage before metal precipitation record information close to that of the initially exsolved magmatic fluids, which are helpful in revealing whether the metals have been already significantly enriched prior to the hydrothermal stage. In this study, available compositional data of such early-stage fluid inclusions from magmatic hydrothermal systems globally have been compiled. The results indicate that the concentrations of Cu,Sn, and W respectively from the Cu-, Sn-, and W-mineralized fluids are significantly higher than the hydrothermal systems that do not produce ores with the corresponding metals. This suggests that Cu, Sn, and W could have already been enriched in the magma source and/or magma evolution stage. The Mo concentrations show no difference between Mo-mineralized and Mobarren fluid systems, indicating no significant pre-enrichment in the source region or during the magma evolution. This also implies that an efficient collection of Mo from a large volume of magmas is required to account for the formation of a large Mo deposit. Almost all the hydrothermal fluids contain high concentrations of Fe and Zn-Pb, but only a few of them eventually form Fe or Zn-Pb deposits, reflecting an important role of the hydrothermal evolution process on the selective metal *** above results indicate that different metals are enriched in different stages of a magmatic hydrothermal system, and that the major roles played in the formation of a deposit vary with the metal types. In addition to the metal concentrations in the o

关键词： Magmatic hydrothermal deposits Fluid inclusions LA-ICP-MS Metal enrichment Mineralization mechanism

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眼镜检验智能化业务系统

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玻璃搪瓷与眼镜 2021年第5期49卷 27-31,36页

作者：邓力生福建省纤维检验中心福建福州350026

传统的眼镜检验须人工将各项检验数据及计算结果与眼镜参数标称值比较,并查表与合格界限比较,以判断是否合格,信息处理量大,容易产生差错。本文用WPS工作簿强大功能将以上过程智能整合,并附加了样品受理、样品拍照、原始记录及报告生成... 详细信息

传统的眼镜检验须人工将各项检验数据及计算结果与眼镜参数标称值比较,并查表与合格界限比较,以判断是否合格,信息处理量大,容易产生差错。本文用WPS工作簿强大功能将以上过程智能整合,并附加了样品受理、样品拍照、原始记录及报告生成、打印等功能,形成完整的智能化业务系统,节省大量人力,减少报告质量差错,适合各检验机构使用。

关键词：眼镜检验智能业务系统

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