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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： oxidative desulfurization kinetic equation curve fitting equilibrium constant

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宽分布聚乙烯管材树脂结构与性能差异性

塑料工业 2024年第5期52卷 124-128,168页

作者：郎学彬武志鹏唐文睿马雄韩向艳王长全钱建华胡跃鑫辽宁石油化工大学石油化工学院辽宁抚顺113001 抚顺石化公司烯烃厂辽宁抚顺113004

本文采用高温凝胶渗透色谱(GPC)、差示扫描量热仪(DSC)、万能拉伸试验机、冲击试验机和动态力学分析仪(DMA)等研究了Hostalen(两釜串联)和Hostalen ACP(三釜串联)淤浆聚合工艺制备的宽分布聚乙烯管材树脂GC1和GC2结构与性能的差异性。... 详细信息

本文采用高温凝胶渗透色谱(GPC)、差示扫描量热仪(DSC)、万能拉伸试验机、冲击试验机和动态力学分析仪(DMA)等研究了Hostalen(两釜串联)和Hostalen ACP(三釜串联)淤浆聚合工艺制备的宽分布聚乙烯管材树脂GC1和GC2结构与性能的差异性。结果表明,三釜串联生产的GC2平均分子量更大,分子量分布更宽,高分子量级分(重均分子量M_(W)>10^(6))相对含量更高且共聚单体的含量更高。同时,GC2还具有更高的拉伸强度和冲击强度,耐蠕变性能更优异,高剪切速率下具有更好的加工流动性。

关键词：聚乙烯管材树脂淤浆聚合工艺力学性能

Spatiotemporal Characteristics of Rainfall over Different Terrain Features in the Middle Reaches of the Yangtze River Basin during the Warm Seasons of 2016–20

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Advances in Atmospheric Sciences 2024年第5期41卷 915-936页

作者： qian WEI jianhua SUN Shenming FU Yuanchun ZHANG Xiaofang WANG Key Laboratory of Cloud-Precipitation Physics and Severe Storms(LACS) Institute of Atmospheric PhysicsChinese Academy of Sciences(IAP/CAS)Beijing 100029China Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters(CIC-FEMD) Nanjing University of Information Science and TechnologyNanjing 210044China University of Chinese Academy of Sciences Beijing 100029China International Center for Climate and Environment Sciences Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Hubei Key Laboratory for Heavy Rian Monitoring and Warning Research Institute of Heavy RainChina Meteorological Administration(CMA)Wuhan 430205China

Based on hourly rain gauge data during May–September of 2016–20,we analyze the spatiotemporal distributions of total rainfall(TR)and short-duration heavy rainfall(SDHR;hourly rainfall≥20 mm)and their diurnal variations over the middle reaches of the Yangtze River *** all three types of terrain(i.e.,mountain,foothill,and plain),the amount of TR and SDHR both maximize in June/July,and the contribution of SDHR to TR(CST)peaks in August(amount:23%;frequency:1.74%).Foothill rainfall is characterized by a high TR amount and a high CST(in amount);mountain rainfall is characterized by a high TR frequency but a small CST(in amount);and plain rainfall shows a low TR amount and frequency,but a high CST(in amount).Overall,stations with high TR(amount and frequency)are mainly located over the mountains and in the foothills,while those with high SDHR(amount and frequency)are mainly concentrated in the foothills and plains close to mountainous *** all three types of terrain,the diurnal variations of both TR and SDHR exhibit a double peak(weak early morning and strong late afternoon)and a phase shift from the early-morning peak to the late-afternoon peak from May to *** the late-afternoon peak,the amount of TR and SDHR in the foothills is larger than over the mountains and *** TR intensity in the foothills increases significantly from midnight to afternoon,suggesting that thermal instability may play an important role in this process.

关键词： short duration heavy rainfall diurnal variation foothill rainfall

基于细胞自噬探讨肝豆灵片对Wilson病的干预研究

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医学研究杂志 2024年第7期53卷 57-61页

作者：钱建华徐国存曾靖喻蒋媛媛张玲陈怀珍王萍张静安徽中医药大学合肥2300122 安徽中医药大学第一附属医院神经内科合肥230031

目的探讨肝豆灵片对Wilson病(Wilson disease,WD)患者的临床疗效及自噬在其中的作用。方法前瞻性收集2021年2月~2022年10月安徽中医药大学第一附属医院神经内科收治的WD患者77例,将其分为治疗组(n=42)和对照组(n=35),其中治疗组予以肝... 详细信息

目的探讨肝豆灵片对Wilson病(Wilson disease,WD)患者的临床疗效及自噬在其中的作用。方法前瞻性收集2021年2月~2022年10月安徽中医药大学第一附属医院神经内科收治的WD患者77例,将其分为治疗组(n=42)和对照组(n=35),其中治疗组予以肝豆灵片(gandouling tablets,GDLT)联合西药治疗,对照组予以西药治疗。选取患者健康同胞40例作为健康组。所有研究对象均采用酶联免疫吸附试验检测血清Beclin-1、p62、LC3-Ⅱ水平的变化,提取外周血单个核细胞并进行实时荧光定量聚合酶链反应(real-time quantitative polymerase chain reaction,RT-qPCR)检测其基因表达水平;所有WD患者进行统一肝豆状核变性分级量表(unified Wilson disease rating scale,UWDRS)评分。分析UWDRS评分变化与自噬蛋白Beclin-1、LC3-Ⅱ、p62水平的相关性;分析GDLT对UWDRS评分及自噬蛋白Beclin-1、p62、LC3-Ⅱ的影响。结果WD患者Beclin-1、LC3-Ⅱ蛋白及mRNA表达水平上升,p62显著下降。UWDRS评分与Beclin-1、LC3-Ⅱ呈正相关,与p62呈负相关。GDLT干预治疗后,UWDRS评分改善显著,Beclin-1、LC3-Ⅱ水平下降显著,p62上升明显(P<0.05)。结论Beclin-1、p62、LC3-Ⅱ与WD病情发展密切相关,对评估WD病情及预后具有重要意义。GDLT干预治疗可抑制WD自噬的过度激活,逆转WD病情进展。

关键词： Wilson病细胞自噬肝豆灵片 UWDRS评分

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) Bohai Univ Liaoning Prov Key Lab Synth & Applicat Funct Cpds Jinzhou 121013 Peoples R China

The poor quality of crude oil obviously leads to high sulfur contents of oil products, and the technology for desulfurization of crude oil is urgently needed so that the sulfur contents in petroleum product could be reduced from the root. This paper describes the progress in technology for desulfurization of crude oil. The present technologies for desulfurization of crude oil include caustic washing, dry gas desulfurization, hydrodesulfurization （HDS）, etc. The new combined technologies for desulfurization of crude oil being studied are： biodesulfurization （BDS）, hydrogenationbacterial catalysis, the microwave-catalytic hydrogenation, the BDS-OD-RA desulfurization and oxidative desulfurization in electrostatic fields, and the ultrasonic/microwave-catalytic oxidation applied in our lab, with their development trends being also discussed.

关键词： crude oil desulfurization development progress

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) Bohai Univ Liaoning Key Lab Synth & Applicat Funct Cpds Jinzhou 121000 Peoples R 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： nano ZnO homogeneous precipitation surface modification additive lubrication properties

Preliminary study of the correlation between trace elements in human hair, liver and kidney by proton induced X-ray emission analysis

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Journal of Environmental Sciences 1989年第1期1卷 91-97页

作者： Zhang Yuanxun, Wang Xuepeng, Ying jianhua, qian Yine, Cheng Yuandi Shanghai hstitute of Nuclear Research， Acadenua Smica Shanghai China

This paper deals with the determination of trace elements in normal human hair, liver and kidney by Proton Induced X-ray Emission (PIXE) analysis. Sampling, specimen preparation and experimental procedures are described in detail. The accuracy of our system has been checked up with the determination of standard reference materials. The preliminary results on correlations between trace elements in human tissues are discussed. Application of the method described in the paper gives evidence in favour of the PIXE as a good tool on environmental life elements and health studies.

关键词： PIXE trace elements nuclear analysis human tissues.

苯并噻吩并[3′,2′:2,3]吡啶并[4,5-d]噻唑并[3,2-a]嘧啶酮类衍生物的有效合成

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有机化学 2017年第3期37卷 698-703页

作者：王冬王道林钱建华渤海大学化学化工学院辽宁省功能化合物合成与应用重点实验室锦州121003

报道了氨基磺酸作用下,通过Pictet-Spengler反应合成苯并噻吩并[3′,2′:2,3]吡啶并[4,5-d]噻唑并[3,2-a]嘧啶酮衍生物的有效合成方法.其中,该反应关键中间体7-(3-氨基苯并噻吩-2-基)噻唑并[3,2-a]嘧啶-5-酮,经由7-氯甲基噻唑并[3,2-a]... 详细信息

报道了氨基磺酸作用下,通过Pictet-Spengler反应合成苯并噻吩并[3′,2′:2,3]吡啶并[4,5-d]噻唑并[3,2-a]嘧啶酮衍生物的有效合成方法.其中,该反应关键中间体7-(3-氨基苯并噻吩-2-基)噻唑并[3,2-a]嘧啶-5-酮,经由7-氯甲基噻唑并[3,2-a]嘧啶-5-酮与2-巯基苯甲腈的烷基化及Thorpe-Ziegler环化制得.该合成过程原料易得,反应条件温和,收率高,为新型稠杂环嘧啶类化合物的合成提供了简便的新途径.

关键词： 7-氯甲基噻唑并[3,2-a]嘧啶-5-酮 2-巯基苯甲腈苯并噻吩并[3',2':2,3]吡啶并[4,5-d]噻唑并[3,2-a]嘧啶酮 Thorpe-Ziegler环化 Pictet-Spengler反应合成

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多官能团端乙烯基酯-环氧树脂的性能

高分子材料科学与工程 2019年第10期35卷 1-8页

作者：钱建华黄锐付建辉华东理工大学华昌聚合物有限公司上海200237 上海防腐蚀新材料工程技术研究中心上海200237

通过控制N,N,N′,N′-四缩水甘油基-4,4′-二氨基二苯甲烷(TGDDM)和丙烯酸(AA)的摩尔比(n(AA)/n(TGDDM)=1∶1、2∶1、3∶1、4∶1),合成了一系列同时含环氧基和乙烯基酯基的多官能团端乙烯基酯基-环氧树脂(MVE-EPs),分别命名为MVE-EP1、M... 详细信息

通过控制N,N,N′,N′-四缩水甘油基-4,4′-二氨基二苯甲烷(TGDDM)和丙烯酸(AA)的摩尔比(n(AA)/n(TGDDM)=1∶1、2∶1、3∶1、4∶1),合成了一系列同时含环氧基和乙烯基酯基的多官能团端乙烯基酯基-环氧树脂(MVE-EPs),分别命名为MVE-EP1、MVE-EP2、MVE-EP 3和MVER。系统研究了MVE-EPs树脂的工艺性能、固化性能、热性能、力学性能及结构形貌。研究发现,随着乙烯基酯基含量提高,相同温度下MVE-EPs树脂黏度降低,凝胶时间缩短。动态力学热分析结果表明,MVE-EPs树脂的储能模量(E′)和损耗角正切(tanδ)曲线只出现1个玻璃化转变温度(T_g),表明为均相体系;4种MVE-EPs树脂的T_g低于TGDDM,其中MVE-EP2最高。MVE-EPs树脂的分子结构中引入乙烯基酯基后,其强度和韧性均比TGDDM有明显提高。4种MVE-EPs树脂中,MVE-EP 3的力学强度最高,MVE-EP2的韧性最好。扫描电子显微镜结果表明,MVE-EPs树脂的冲击断裂面呈韧性断裂特征,而TGDDM树脂的冲击断裂面呈脆性断裂特征。

关键词： N,N,N′,N′-四缩水甘油基-4,4′-二氨基二苯甲烷多官能团端乙烯基酯基-环氧树脂工艺性能热性能力学性能