检索结果-南通市图书馆

Power-to-chemicals:sustainable liquefaction of food waste with plasma-electrolysis

在线全文

学校读者我要写书评

暂无评论

Frontiers of Chemical Science and Engineering 2023年第5期17卷 594-605页

作者： Wenquan Xie Xianhui Zhang Dengke Xi Rusen Zhou size yang Patrick Cullen Renwu Zhou Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance Fujian Engineering Research Center for EDAFujian Provincial Key Laboratory of Electromagnetic Wave Science and Detection TechnologyXiamen Key Laboratory of Multiphysics Electronic InformationInstitute of Electromagnetics and AcousticsXiamen UniversityXiamen 361005China School of Chemical and Biomolecular Engineering University of SydneySydney NSW 2006Australia State Key Laboratory of Electrical Insulation and Power Equipment Centre for Plasma BiomedicineXi’an Jiaotong UniversityXi’an 710049China

The increasing amount of food waste from various industrial,agricultural,and household sources is an environmental burden if managed *** waste management approaches have been developed for the disposal of food waste,but still suffer from either high cost,production of toxic by-products,or secondary environmental ***,we report a new and sustainable plasma electrolysis biorefinery route for the rapid and efficient liquefaction of food *** the plasma electrolysis process,only the solvent is added to liquefy the waste,and anions in the waste can contribute to catalyzing the biowaste *** liquefying the waste,the highly reactive species produced in the plasma electrolysis process can efficiently reduce the content of O,N,and Cl in the liquefied products and oxidize most of the metals into solid ***,the removal rate of Na and K elements was greater than 81%,which is significantly higher than using the traditional oil bath liquefaction,resulting in a relatively high-quality biocrude oil with a high heating value of 25.86 MJ·kg^(-1).Overall,this proposed strategy may provide a new sustainable and eco-friendly avenue for the power-to-chemicals valorization of food waste under benign conditions.

关键词： plasma electrolysis food waste liquefaction resource recovery

Saturation Ion Current Densities in Inductively Coupled Hydrogen Plasma Produced by Large-Power Radio Frequency Generator

在线全文

学校读者我要写书评

暂无评论

Plasma Science and Technology 2016年第9期18卷 907-911页

作者： WANG Songbai LEI Guangjiu BI Zhenhua H. GHOMI yang size LIU Dongping College of Physics and Information Engineering Fuzhou UniversityFuzhou 350108China Southwestern Institute of Physics Chengdu 610041China School of Physics and Materials Engineering Dalian Nationalities UniversityDalian 116600China Laser and Plasma Research Institute Shahid Beheshti UniversityEvinTehrarIran School of Physics and Mechanical&Electrical Engineering Xiamen UniversityXiamen 361005China

An experimental investigation of the saturation ion current densities （Jions） in hydrogen inductively coupled plasma （ICP） produced by a large-power （2-32 kW） radio frequency （RF） generator is reported, then some reasonable explanations are given out. With the increase of RF power, the experimental results show three stages： in the first stage （2-14 kW）, the electron temperature will rise with the increase of RF power in the ICP, thus, the Jions increases continually as the electron temperature rises in the ICP. In the second stage （14 20 kW）, as some H- ions lead to the mutual neutralization （MN）, the slope of Jio^s variation firstly decreases then increases. In the third stage （20-32 kW）, both the electronic detachment （ED） and the associative detachment （AD） in the ICP result in the destruction of H- ions, therefore, the increased amplitude of the Jions in the third stage is weaker than the one in the first stage. In addition, with the equivalent transformer model, we successfully Explain that the Jions at different radial locations in ICP has the same rule. Finally, it is found that the Jions has nothing to do with the outer/inner puffing gas pressure ratio, which is attributed to the high-speed movement of hydrogen molecules.

关键词： saturation ion current densities large-power RF generator outer/innerpuffing gas pressure ratio H- ion transformer model

Preparation and characterization of carbon nano-sheet powders

在线全文

学校读者我要写书评

暂无评论

Petroleum Science 2008年第1期5卷 79-82页

作者： yang Wubao Zhao Zhen Fang Songhua Wang Yong yang size Lin Li School of Electromechanical Engineering China University of Petroleum Beijing 102249 China School of Chemical Science and Engineering China University of Petroleum Beijing 102249 China Institute of Physics Chinese Academy of Sciences Beijing 100080 China

Carbon nanosheet films were deposited on A1 substrates by using plasma assisted chemical vapor deposition （PACVD） technique. And after being peeled off from A1 substrates, carbon nanosheet powders （CNSPs） were obtained. In Raman spectrum of carbon film, there was a strong and broadened peak at about 1,580 cm^-1, indicating a carbon diamond-like film. Atomic force microscope image showed that the carbon diamond-like film had a grain size less than 100 nm, and its surface roughness Ra was 17.95 nm in an area of 5×5 μm^2. The CNSPs were irregular sheets with curly edges and a length of several micrometers to several hundreds of micrometers. The BET surface area of CNSPs was 6.66 m^2/g with no micro-pore present, which was confirmed by N2 adsorption-desorption characterization. In the adsorption testing, when the relative pressure p/po was higher than 0.3, the adsorption behavior did not follow the Langmuir equation. The addition of CNSPs to carbon black （catalyst support） could improve hydrodesulfurization performance of carbon supported Ni-W catalysts for diesel oil.

关键词： Plasma assisted chemical vapor deposition carbon nanosheet powder N2 adsorption/desorption hydrodesulfurization

Introduction of a new atmospheric pressure plasma device and application on tomato seeds

在线全文

学校读者我要写书评

暂无评论

Agricultural Sciences 2011年第1期2卷 23-27页

作者： Zhuwen Zhou Yanfen Huang size yang Wei Chen Institute of Applied Physics of Guizhou Normal College Department of Chemistry – Biology Sciences of Guizhou Normal College Horticulture Research Institute Guizhou Academy of Agricultural Sciences Institute of Physics of Chinese Academy of Sciences

We designed new atmospheric pressure plasma device, to explore appropriate voltage of plasma treatment that promote traits and yield of to-mato, tomato seeds were treated by plasma at 4760 to 6800 V, and traits and yield of tomato were observed. The results showed that the ef-fects of different voltage plasma treatments on seed germination were not the same. The bloom times, the height, the caulis, the extent of the plants and the average weight, length,diameter of each fruit in the seven treatment groups from 4760 to 6800 V were increased distinctly. The tomato yields of seven different plasma voltage treated groups were increased than the un-treated (CK). In most indexes of our tests, ef-fects of (5440 ~ 6120 V) plasma voltage treat-ments were better than of other voltages, the best was 6120 V plasma voltage treatment. So the tomato yield increase and the most the botany properties of the tomato are improved. The discharges were not uniform and the pow-ers were lower in low voltages (4760 ~ 5100V), and the discharge powers were higher in high voltages (6460 ~ 6800V). There was a step un-altered violet blue light from 5440V to 6120V, it was nearly uniform discharges, it maybe due to the energy of the electron and the active air particles in the plasma increasing with atmos-pheric plasma voltage adding, more electric charges are produced per unit time and cannot be neutralized at once, which can strengthen the reaction between the active air particles and seeds. The active air particles and ultraviolet radiation can penetrate into the capsule of the seeds,accelerate to decompose the inner nu-triment of the seeds, reduce relative penetrabil-ity of cell velum, improve the activities of the root of the tomato seedling. Test data of fruit yield of the tomato are consistent with the sta-tistical regressive line.

关键词： Atmospheric Pressure Plasma Treat Voltage Tomato Seed Yield

大气压低温等离子体与胸腺嘧啶脱氧核苷的作用

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

高电压技术 2015年第9期41卷 2837-2843页

作者：杨思泽杨周斌周仁武张先徽厦门大学物理与机电工程学院电子科学系电磁声学研究院福建省等离子体与磁共振研究重点实验室厦门361000

胸腺嘧啶(Thymine)是遗传物质的组成成分之一,为了研究等离子体对遗传胸腺嘧啶(Thymine)的作用过程,利用大气压等离子体对作为遗传物质的胸腺嘧啶(Thymine)及对应的胸腺嘧啶脱氧核苷(Thymidine)进行处理,为了避免空气对遗传物质的影响,... 详细信息

胸腺嘧啶(Thymine)是遗传物质的组成成分之一,为了研究等离子体对遗传胸腺嘧啶(Thymine)的作用过程,利用大气压等离子体对作为遗传物质的胸腺嘧啶(Thymine)及对应的胸腺嘧啶脱氧核苷(Thymidine)进行处理,为了避免空气对遗传物质的影响,采用水中放电装置进行了相关研究。研究结果表明:不同气体等离子体处理后,胸腺嘧啶脱氧核苷会分解为胸腺嘧啶,且氮气等离子体处理时分解速率快于氩气等离子体处理;另外,空气等离子体与氧气等离子体处理后,胸腺嘧啶脱氧核苷会分解产生两种新产物,分别为胸腺嘧啶+OH和胸腺嘧啶脱氧核苷+OH。该研究对了解大气压等离子体对细菌失活的机制具有一定指导作用,同时对等离子体与生物体作用有着积极的指导意义。

关键词：大气压冷等离子体含氧自由基胸腺嘧啶(Thymine) 胸腺嘧啶脱氧核苷(Thymidine) pH值色谱质谱

18Ni(300)钢高速干滑动摩擦磨损特性研究

在线全文

学校读者我要写书评

暂无评论

摩擦学学报 2017年第2期37卷 218-224页

作者：王云鹏孙琨杨思泽薛进进方亮西安交通大学材料科学与工程学院陕西西安710049 沈阳鼓风机集团有限公司研究院辽宁沈阳110869

利用销盘高速干滑动摩擦磨损试验机,对18Ni(300)马氏体时效钢的摩擦磨损性能进行了研究,应用JSM-6390A型扫描电子显微镜和X-衍射方法对摩擦磨损表面进行观察,表征其摩擦表面的微观形貌、摩擦磨损的磨屑以及由于摩擦产热而引起的氧化物,... 详细信息

利用销盘高速干滑动摩擦磨损试验机,对18Ni(300)马氏体时效钢的摩擦磨损性能进行了研究,应用JSM-6390A型扫描电子显微镜和X-衍射方法对摩擦磨损表面进行观察,表征其摩擦表面的微观形貌、摩擦磨损的磨屑以及由于摩擦产热而引起的氧化物,进而推断出磨损机制.结果表明:摩擦副的摩擦系数随载荷和速度的增加而下降;随着转速和载荷的增加,销表面氧化物逐渐由FeO转变为Fe_3O_4,其磨损机制由黏着磨损转变为严重的氧化磨损.

关键词： 18Ni(300)钢摩擦系数氧化磨损机理

在线全文

学校读者我要写书评

暂无评论

等离子体电解液化生物质的发展及展望

石油学报（石油加工） 2023年第5期39卷 1104-1115页

作者：黄紫薇席登科张先徽杨思泽厦门大学电磁声学研究院福建省等离子体与核磁共振研究重点实验室福建厦门361000

生物质能源具有储量丰富、可再生、碳中性等特点,有望成为化石能源的替代品,解决化石能源使用所带来的能源危机和温室效应等问题。通过电能/等离子体能将生物质能转化为化学能是实现碳移除和负排放重要途径,其中电能-等离子体-生物质能... 详细信息

生物质能源具有储量丰富、可再生、碳中性等特点,有望成为化石能源的替代品,解决化石能源使用所带来的能源危机和温室效应等问题。通过电能/等离子体能将生物质能转化为化学能是实现碳移除和负排放重要途径,其中电能-等离子体-生物质能-化学能之间的闭环转化(零损耗)显得尤为重要。将低价值、可再生、生物质能转化为更高价值的形式(化学能),为燃料和化学品生产提供了可行的机会,在生物质能转化为化学能过程中实现了碳中和与零排放,为未来生物质能在技术、环境和经济上投入应用铺平道路。系统阐述了等离子体电解液化生物质的原理以及产物应用方面的研究进展,同时针对等离子体电解液化的缺点,提出相应的策略,为未来的研究和转化提供参考。

关键词：等离子体生物质能源液化生物燃料化学品碳中性

ELECTRON CYCLOTRON RESONANCE HEATING ON CT-6B TOKAMAK

在线全文

学校读者我要写书评

暂无评论

Chinese Physics Letters 1988年第8期5卷 345-348页

作者： LUO Yaoquan WANG Long yang size QI Xiazhi LI Zanliang WANG Wenshu LI Wenlai WU Xiaowen ZHAO Hua Institute of Physics Academia SinicaBeijing

An electron cyclotron resonance heating experiment has been performed by using a gyrotron system for the fundamental and second harmonic resonance heating on CT-6B *** changes are observed in soft X-ray radiations,electron cyclotron emission,displacement of plasma column,impurity line radiations,and bremsstrahlung radiation when heating pulse is injected,indicating an increase of the plasma electron temperature.

关键词： TOKAMAK harmonic heating

大气压等离子体处理对黄瓜种子萌发及幼苗生长的影响

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

农业工程学报 2007年第2期23卷 195-200页

作者：王敏杨思泽陈青云高丽红陈光良刘秀军中国农业大学农学与生物技术学院北京100094 中国科学院物理研究所北京100080 长春理工大学理学院长春130022

利用自制大气压等离子体装置对黄瓜种子进行处理，研究了不同电压的大气压等离子体处理对黄瓜种子萌发及幼苗生长的影响。试验结果表明：在5610～7310V电压范围内，等离子体处理对种子的影响较明显，与对照相比其发芽势、发芽率、发芽... 详细信息

利用自制大气压等离子体装置对黄瓜种子进行处理，研究了不同电压的大气压等离子体处理对黄瓜种子萌发及幼苗生长的影响。试验结果表明：在5610～7310V电压范围内，等离子体处理对种子的影响较明显，与对照相比其发芽势、发芽率、发芽指数及活力指数显著提高，增幅分别为8．22％～52．94％、2．21％～9．55％、5．37％～35．32％、4．72％～104．72％，种子α-淀粉酶活性提高，电导率降低。同时等离子体处理也提高了幼苗的出苗速度，幼苗株高、茎粗、地上部鲜（干）质量、地下部鲜（干）质量、根体积也有不同程度的增加。幼苗的根活力、叶绿素含量、过氧化物酶活性分别比对照提高15．96％～34．37％、4．09％～27．04％、4．24％～16．58％。从本试验研究结果看，6290V和6630V电压处理效果较佳。

关键词：大气压等离子体黄瓜种子萌发幼苗生长