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Effect of Biodiesel on Oxidation Stability, Detergency and Antiwear Ability of Diesel Oil

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China Petroleum Processing & Petrochemical Technology 2011年第4期13卷 58-63页

作者： Wu Jiang Chen Boshui Fang Jianhua Wang Jiu (Department of petrochemistry, Logistical Engineering University, Chongqing 401311) dept. of petrochemistry Logistical Engineering University University Town Chongqing 401311 China

Different contents of biodiesel and petrodiesel were incorporated into diesel engine oils. The oxidative stability, detergency and antiwear performance of the formulated diesel oils were evaluated. The results indicated that, compared with petrodiesel, biodiesel was more liable to promote oxidation degradation of diesel oils, leading to worse oxidative stability, detergency and antiwear ability of the oils.

关键词： biodiesel diesel oil oxidation stability detergency antiwear ability

Tribological Performances of Fatty Acyl Amino Acids Used as Green Additives in Lubricating Oil

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China Petroleum Processing & Petrochemical Technology 2010年第3期12卷 49-53页

作者： Chen Boshui Wang Jiu Fang Jianhua Huang Weijiu Sun Xia Yu Ying dept. of petrochemistry Logistical Engineering University Chongqing 401311 College of Material Engineering Chongqing University of Science and Technology Chongqing 400050 College of Bioengineering Chongqing University of Science and Technology Chongqing 400050

The friction and wear characteristics of lauroyl glutamine, lauroyl glycine and lauroyl alanine, used as green additives in HVI 350 mineral lubricating oil, were evaluated on a four-ball tribotester. The morphologies and chemical species of the worn surfaces were analyzed by scanning electron microscope （SEM） and X-ray photoelectron spectroscope （XPS）, respectively. The test results indicated that the three fatty acyl amino acids could effectively improve the anti-wear and friction-reducing abilities of the HVI 350 mineral oil. The improvement in anti-wear and friction-reducing abilities of the mineral oil by the related amino acids was mainly ascribed to the formation of a composite boundary lubrication film due to the adsorption of amino acids on the friction surfaces.

关键词： fatty acyl amino acid mineral lubricating oil friction wear

Petrogenesis and tectonic setting of Triassic granitoids in the Qiangtang terrane,central Tibet:Evidence from U–Pb ages,petrochemistry and Sr–Nd–Hf isotopes

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Petrogenesis and tectonic setting of Triassic granitoids in ...

中国科学院地质与地球物理研究所2015年度（第15届）学术年会

作者： Guang-Ming Li Jin-Xiang Li Jun-Xing Zhao Ke-Zhang Qin Ming-Jian Cao Noreen J.Evans Key Laboratory of Mineral Resources Institute of Geology and GeophysicsChinese Academy of Sciences CAS Center for Excellence in Tibetan Plateau Earth Sciences Key Laboratory of Continental Collision and Plateau Uplift Institute of Tibetan Plateau ResearchChinese Academy of Sciences CSIRO Earth Science and Resource Engineering John de Laeter Center for Isotope Research Dept.Applied GeologyCurtin University

Triassic granitoids,including the$220 Ma Shuanghu and$210 Ma Rongma granitoids studied here,are widely distributed around the Longmu–Shuanghu suture and in the Qiangtang terrane,central *** majority of these granitoids can be classified as high-K calc-alkaline in nature and yield negative Ba and Sr anomalies on primitive mantle-normalized *** addition,they are:enriched in light rare earth elements(LREE)((La/Yb)N=1.61–21.79);strongly enriched in large ion lithophile elements(LILE:e.g.,Cs,Rb,and K),and depleted in high field strength elements(HFSE:e.g.,Nb and Ti).Magma mixing played a role in the genesis of the Shuanghu granodiorites,as indicated by the occurrence of dioritic enclaves and the wide range in zircon Hf compositions(e Hf(t)=à15.0 toà2.5).The I-type Shuanghu granodiorites and S-type Shuanghu and Rongma granites might have been derived from melting of southern Qiangtang crust given the high initial Sr(0.7131–0.7272),low e Nd(t)(à8.9 toà11.1)and zircon e Hf(t)values(à15 toà7.2).The granitoids may have formed during melting of southern Qiangtang crust,heated by upwelling asthenosphere mantle,a result of break-off and delamination of the Paleo-Tethys slab in a collisional setting.

关键词： Geochronology Zircon Hf isotopes Granitoids Qiangtang terrane Tibet

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幔源角闪石巨晶中硫化物熔融包裹体研究

地质学报 2012年第7期86卷 1091-1105页

作者：李大鹏杜杨松 S.D.SCOTT 秦新龙 A.F.A.MARQUES R.N.S.SODHI 中国地质大学科学研究院北京100083 Scotiabank Marine Geology Research Laboratory Department of GeologyUniversity of Toronto22 Russell StreetTorontoCanada M5S 3B1 江苏省有色金属华东地质勘查局南京210007 CREMINER(LA/ISR) LisbonPortugal Surface Interface Ontario Dept.of Chemical Engineering&Applied ChemistryUniversity of TorontoCanada M5S 3E5

硫化物熔融包裹体研究是认识硫化物矿床成矿元素来源和演化的重要手段,由于硫化物熔融包裹体的体积较小(粒径仅为10～20μm),其详细化学元素组分的难以获得一直是制约进一步研究的瓶颈。笔者在前人研究的基础上,借助于扫描电镜、电镜能... 详细信息

硫化物熔融包裹体研究是认识硫化物矿床成矿元素来源和演化的重要手段,由于硫化物熔融包裹体的体积较小(粒径仅为10～20μm),其详细化学元素组分的难以获得一直是制约进一步研究的瓶颈。笔者在前人研究的基础上,借助于扫描电镜、电镜能谱和二次飞行时间离子探针(Tof-SIMS)对产于铜陵地区角闪石巨晶中的硫化物熔融包裹体进行了详细的研究,首次获得了一套精确的矿物化学资料和元素分布图。矿物学研究表明,角闪石巨晶在上地幔和下地壳均有结晶,温压区间分别为T:850～900℃(温度),P:0.70×109～0.82×109Pa(压力),对应深度D:23.10～27.06km;和T:900～950℃,P:1.09×109～1.17×109Pa,D:35.97～38.61km。元素分布图显示,硫化物熔融包裹体主要有两种元素组成体系:S-Fe-Mn-Ni-Rb-Sr-Ba和S-Fe-Cu-Sr,幔源硫化物体系中Mn、Ni、Rb、Ba等元素具有相似的性质特征可共溶,与Cu则表现出不混溶。在铜陵地区,上地幔的部分熔融形成了一套碱性玄武岩浆,后受岩浆底侵作用和壳幔相互作用影响,底侵进入下地壳深位岩浆房,发生结晶分异和同化混染作用,形成一套轻度演化的玄武岩浆,可能为辉长质。上地幔和下地壳的角闪石巨晶分别是由上地幔碱性玄武岩浆和下地壳轻度演化的玄武岩浆(辉长质)高压下结晶的产物。当上地幔碱性玄武岩浆上侵到下地壳深位岩浆房以后,发生结晶分异作用,又由于地壳硅镁层的混染作用,使得玄武岩浆中硫溶解度降低,促其熔离,从而释放大量的硫(S,以及Ni、Cu、Cr)。角闪石巨晶中的硫化物熔融包裹体正是在下地壳深位岩浆房中,由正在结晶的角闪石巨晶在结晶分异和轻度演化的玄武质岩浆中捕获的不混溶硫化物熔融液滴形成的。铜陵地区在中生代经历了一个长期的大规模的岩浆底侵作用和壳幔相互作用过程,由于下地壳硅镁层混染作用使得轻度演化的玄武岩浆释放大量硫,必然会在莫霍面附近形成大规模高浓度的硫富集区,这些组分在岩浆上侵作用、地壳减薄作用或者裂谷作用的影响下很容易再活化,进入区域岩浆-热液流体系统,最终参与形成区域大规模的硫化物矿床。

关键词：硫化物熔融包裹体上地幔硫化物岩浆底侵作用二次飞行时间离子探针(Tof-SIMS)