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Distribution and bioavailability of mercury in size-fractioned atmospheric particles around an ultra-low emission power plant in Southwest China

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Journal of Environmental Sciences 2024年第4期138卷 141-152页

作者： Wei Zhang jinjuan Li Hao Qiu xingqiang Guo Zhijun Fei Yi xing Deliang Yin College of Resources and Environmental Engineering Guizhou UniversityGuiyang 550025China College of Resources and Environmental Engineering Guizhou Institute of TechnologyGuiyang 550003China Key Laboratory of Karst Georesources and Environment(Guizhou University) Ministry of EducationGuiyang 550025China School of Energy and Environmental Engineering University of Science&Technology BeijingBeijing 100083China

Ultra-low emission(ULE)technology retrofits significantly impact the particulate-bound mercury(Hg)emissions from coal-fired power plants(CFPPs);however,the distribution and bioavailability of Hg in size-fractioned particulate matter(PM)around the ULE-retrofitted CF-PPs are less ***,total Hg and its chemical speciation in TSP(total suspended particles),PM_(10)(aerodynamic particle diameter≤10μm)and PM_(2.5)(aerodynamic particle diameter≤2.5μm)around a ULE-retrofitted CFPP in Guizhou Province were *** PM_(2.5)concentration was higher around this ULE-retrofitted CFPP than that in the intra-regional urban cities,and it had higher mass Hg concentration than other sizefractioned *** Hg concentrations in PM had multifarious sources including CFPP,vehicle exhaust and biomass combustion,while they were significantly higher in autumn and winter than those in other seasons(P40%).Mass concentrations of exchangeable,HCl-soluble,elemental,and residual Hg in PM_(2.5)were higher than those in other size-fractioned PM,and were markedly elevated in autumn and winter(P<0.05).In PM_(2.5),HCl-soluble Hg presented a significantly positive relationship with elemental Hg(P<0.05),while residual Hg showed the significantly positive relationships with HCl-soluble Hg and elemental Hg(P<0.01).Overall,these results suggested that atmospheric PM-bound Hg around the ULE-retrofitted CFPP tends to accumulate in finer PM,and has higher bioavailable fractions,while has potential transformation between chemical speciation.

关键词： Size-fractioned particles Mercury Chemical speciation Coal-fired power plant Ultra-low emission

Stability and Lubrication Properties of Nano Oxides in Base Oil

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China Petroleum Processing & Petrochemical Technology 2012年第4期14卷 97-102页

作者： xing jinjuan Qian Jianhua Liu Lin Wang Ning Ma Quanliang Liaoning Key Laboratory of Synthesis and Application of Functional Compounds Bohai University

The target products were prepared by homogeneous precipitation method using SDS and PEG 800, respectively, as surfactant at a reaction temperature of 95℃ for 3 h, followed by calcination at 400℃ for 3 h. The samples were characterized and analyzed by XRD, SEM, FTIR and zeta potential measurements. The products were modified with different surfactants to improve their dispersion stability, both the amount and the best zeta potential values of which were identified in this work. The surface-modified nano-particles were added at a mass fraction of 1.0%, 2.0%, 3.0%, and 4.0%, respectively, into the base oil. It was showed that the additive in base oil has good oil solubility without detectable corrosion of copper stripe, and had excellent behavior in terms of anti-wear performance and lower friction coefficient.

关键词：分散稳定性基础油纳米氧化物润滑特性 zeta电位表面活性剂均匀沉淀法 X射线衍射

Study on Kinetics for Desulfurization of Model Diesel

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China Petroleum Processing & Petrochemical Technology 2009年第2期11卷 43-47页

作者： Qian Jianhua Zhou Yuenan Liu Lin Wang Yue xing jinjuan Lü Hong Liaoning Province Key Laboratory for Synthesis and Application of Functional Compounds Bohai University Jinzhou 121000 Materials and Metallurgy College Northeastern University

In this study,by means of the experiments for desulfurization of model diesel through oxidative extraction,the changes associated with the rate of desulfurization of diesel and the mechanism for oxidation of sulfides in diesel were explored. Through studying the mechanism for oxidation of sulfides and the principle of solvent extraction,the kinetic equation of desulfurization via oxidative extraction were determined. By means of the evaluation of model parameters and curve fitting,the reaction order between organic sulfide and sulfone,the intrinsic oxidation rate constant of organic sulfide and sulfone,and the equilibrium constant between sulfone in model diesel and extractive solvent were determined. The experimental values of the desulfurization rate and the theoretical values of the corresponding model equation had closely demonstrated that the desulfurization reaction rate had high accuracy. And the reaction kinetics could provide an important basis for diesel desulfurization process in the future.

关键词：动力学方程柴油脱硫柴油机有机硫化物氧化机制溶剂萃取模型参数反应动力学

白云母/TiO_(2)复合材料的制备及光催化性能

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材料工程 2023年第4期51卷 57-66页

作者：王宁邢锦娟赵振涛刘琳渤海大学辽宁省二氧化钛粉体表面功能化重点实验室辽宁锦州121013

以钛酸丁酯为钛源、冰醋酸为抑制剂,通过水热法合成白云母/TiO_(2)(M/T)复合光催化材料。采用X射线衍射(XRD),拉曼光谱(Raman),扫描电子显微镜(SEM),能谱仪(EDS),N2吸附-脱附(BET),紫外-可见漫反射光谱(UV-Vis),荧光光谱(PL)对样品的物... 详细信息

以钛酸丁酯为钛源、冰醋酸为抑制剂,通过水热法合成白云母/TiO_(2)(M/T)复合光催化材料。采用X射线衍射(XRD),拉曼光谱(Raman),扫描电子显微镜(SEM),能谱仪(EDS),N2吸附-脱附(BET),紫外-可见漫反射光谱(UV-Vis),荧光光谱(PL)对样品的物相结构、表面形貌、元素分布、孔隙结构及光学特性进行表征,并以甲基橙(MO)溶液为目标污染物,考察水热温度、水热时间、TiO_(2)负载量对M/T复合材料光催化性能的影响。结果表明:100℃水热16 h, TiO_(2)负载量为20%(质量分数)的M/T复合材料光催化性能最好;紫外光照射60 min,对MO的降解率达到99.62%,总有机碳(TOC)去除率为63.58%,重复使用5次,光催化活性没有明显降低,且M/T复合材料光降解MO过程符合一级反应动力学模型,最大反应速率常数kapp为0.049 min^(-1)。

关键词：白云母 TiO_(2) 光催化动力学

Progress in the Technology for Desulfurization of Crude Oil

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China Petroleum Processing & Petrochemical Technology 2010年第4期12卷 1-6页

作者： Liu Lin L Hong Qian Jianhua xing jinjuan (Liaoning Province Key Laboratory for Synthesis and Application of Functional Compounds, Bohai University,Jinzhou 121013) Liaoning Province Key Laboratory for Synthesis and Application of Functional Compounds Bohai University Jinzhou 121013 China

原油的差的质量显然导致油产品，和技术的高硫内容因为原油的 desulfurization 着急地被需要以便在石油产品的硫内容能从根被减少。这份报纸为原油的 desulfurization 在技术描述进步。为原油的 desulfurization 的现在的技术包括苛性... 详细信息

原油的差的质量显然导致油产品，和技术的高硫内容因为原油的 desulfurization 着急地被需要以便在石油产品的硫内容能从根被减少。这份报纸为原油的 desulfurization 在技术描述进步。为原油的 desulfurization 的现在的技术包括苛性的洗的、干燥煤气的 desulfurization， hydrodesulfurization (HDS ) ， *** 为被学习的原油的 desulfurization 的新联合技术：静电的领域里的 biodesulfurization (BDS ) ， hydrogenationbacterial 催化作用，微波催化的加氢， BDS-OD-RA desulfurization 和氧化 desulfurization，和 ultrasonic/microwave-catalytic 氧化在我们的实验室适用，与他们的发展趋势也被讨论。

关键词：脱硫技术原油石油产品催化氢化催化氧化法技术进步生物脱硫加氢脱硫

Study on Lubrication Properties of Modified Nano ZnO in Base Oil

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China Petroleum Processing & Petrochemical Technology 2011年第3期13卷 69-73页

作者： Qian Jianhua Zhang Yu Wang Lingling xing jinjuan (Liaoning Key Laboratory of Synthesis and Application of Functional Compounds,Bohai University,Jinzhou 121000) Liaoning Key Laboratory of Synthesis and Application of Functional Compounds Bohai University Jinzhou 121000 China

ZnO nanoparticles with an average size of 125 nm were prepared via homogeneous precipitation method and were characterized by *** products were surface-modified by the surfactant ***-modified nano particles were added at a mass ratio of 1.0%,2.0%,3.0%,and 4.0%,respectively,in base oil and their friction and wear behaviors were evaluated on a MRS-10D type four-ball wear *** four-ball wear tests,the morphology of the rubbing surfaces was evaluated with metallographic *** was revealed that the modified nano ZnO had excellent behavior for improving anti-wear property and friction coefficient,which could greatly reduce the friction of machine parts.

关键词：纳米氧化锌表面改性基础油润滑性能 ZnO纳米粒子摩擦磨损行为磨损试验机均相沉淀法

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TiO_(2)复合膜的制备及改性研究进展

化工新型材料 2023年第6期51卷 34-39,44页

作者：马坤怡邢锦娟刘琳渤海大学化学与材料工程学院锦州121013

随着工业的发展,废水排放量的不断增加,对环境造成了极大的污染。因此,需要一种高效的废水处理方法。膜分离技术是去除水中污染物的一种可持续、高效的现代分离技术,已被广泛应用于废水处理方面。TiO_(2)作为一种常用的去除污染物的催化... 详细信息

随着工业的发展,废水排放量的不断增加,对环境造成了极大的污染。因此,需要一种高效的废水处理方法。膜分离技术是去除水中污染物的一种可持续、高效的现代分离技术,已被广泛应用于废水处理方面。TiO_(2)作为一种常用的去除污染物的催化剂,具有化学稳定性好、无毒无害、催化活性高等特点。而将TiO_(2)纳米颗粒添加至聚合物基质中制备的TiO_(2)复合膜,不仅可以避免TiO_(2)在水溶液中易团聚的问题,而且能提高聚合物膜在高温下的渗透选择性和稳定性。重点介绍了TiO_(2)复合膜的制备方法,探讨了复合膜的改性技术及降解废水中污染物的机理。并针对TiO_(2)复合膜材料在污染物降解应用中存在的问题,提出了相关研究趋势,旨在为TiO_(2)复合膜材料的理论研究和工业推广应用提供参考依据。

关键词：二氧化钛复合膜改性光催化降解

Co-MOFs材料在超级电容器方面的应用进展

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材料科学与工程学报 2022年第1期40卷 160-170页

作者：邢锦娟孙平平史发年沈阳工业大学理学院辽宁沈阳110870

本文阐述了近年来钴金属有机骨架(Co-MOFs)材料在超级电容器电极材料方面的研究进展,并对Co-MOFs材料和Co-MOFs衍生的氧化钴、钴氢氧化物、碳材料以及复合材料等用作超级电容器电极材料进行了分类总结,旨在为广大研究者提供相关方面的... 详细信息

本文阐述了近年来钴金属有机骨架(Co-MOFs)材料在超级电容器电极材料方面的研究进展,并对Co-MOFs材料和Co-MOFs衍生的氧化钴、钴氢氧化物、碳材料以及复合材料等用作超级电容器电极材料进行了分类总结,旨在为广大研究者提供相关方面的报道。

关键词：超级电容器钴金属有机骨架氧化钴钴氢氧化物碳材料复合材料

V_(2)O_(5)/ZrO_(2)-Al_(2)O_(3)催化甲醇选择性氧化合成二甲氧基甲烷

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华南师范大学学报（自然科学版） 2022年第3期54卷 62-71页

作者：张丹尚润梅赵振涛李君华邢锦娟渤海大学化学与材料工程学院锦州121013 辽宁石油化工大学石油化工学院抚顺113001

采用浸渍法制备了V_(2)O_(5)质量分数不同的V_(2)O_(5)/Al_(2)O_(3)催化剂,采用Zr对Al_(2)O_(3)载体进行改性并应用于催化甲醇选择性氧化制备二甲氧基甲烷(DMM)的反应中。经X-射线衍射(XRD)、扫描电子显微镜(SEM)、紫外-可见分光光谱(UV... 详细信息

采用浸渍法制备了V_(2)O_(5)质量分数不同的V_(2)O_(5)/Al_(2)O_(3)催化剂,采用Zr对Al_(2)O_(3)载体进行改性并应用于催化甲醇选择性氧化制备二甲氧基甲烷(DMM)的反应中。经X-射线衍射(XRD)、扫描电子显微镜(SEM)、紫外-可见分光光谱(UV-Vis)、傅里叶变换红外光谱(FTIR)、拉曼光谱(Raman)、N2吸附-脱附(BET)、H2程序升温还原(H_(2)-TPR)和NH3程序升温脱附(NH_(3)-TPD)表征分析,结果表明:与单一Al_(2)O_(3)负载的钒基催化剂相比,Zr改性提高了钒氧化物的分散性与稳定性,加强了催化剂中各组分间的相互作用,有效调变了催化剂的酸性和氧化性,进而提高了DMM的选择性。考察了反应条件对甲醇选择性氧化制备DMM的影响,最佳反应温度为175℃,经20%V_(2)O_(5)/12%ZrO_(2)-Al_(2)O_(3)催化氧化,甲醇转化率为27.9%,DMM选择性为99.9%。

关键词：甲醇选择性氧化双功能催化剂氧化钒二甲氧基甲烷改性