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| 1 | Seafloor hydrothermal activity and polymetallic sulfide exploration on the southwest Indian ridge显示文摘Polymetallic sulfides have attracted more attentions,which are regarded as one of the potential seabed mineral resources for their high grade of precious metal elements such as Cu,Zn,Pb,Au,and Ag.Since2007,there are four China dayang cruises(CDCs)with eight legs totally,which have been carried out to investigate polymetallic sulfides on the southwest Indian ridge(SWIR),and eight hydrothermal vents have been found.In2011,the China Ocean Mineral Resources Research and Development Association(COMRA)and International Seabed Authority(ISA)signed a 15-year contract for exploration for polymetallic sulfides located on the SWIR between 46°S and 53°S.The area allocated to the COMRA is approximately 10,000 km2.In this paper,we review the recent research advances about hydrothermal activity of the SWIR by the CDCs.As for the sulfides exploration in the future,some aspects should be emphasized,such as the controlling factors of sulfide mineralization on the SWIR,prospecting methods of inactive and buried sulfide deposits,sulfides resources assessment method,and the nearbottom sulfides exploration technology systems. | Chunhui Tao Huaiming Li Xiaobing Jin Jianping Zhou Tao Wu Yonghua He Xianming Deng Chunhua Gu Guoyin Zhang Weiyong Liu | 2014 | Chinese Science Bulletin2014，59，19： | 25 |
| 2 | Ni/Al_2O_3 catalysts for syngas methanation: Effect of Mn promoter显示文摘Ni/Al2O3 catalysts with different amounts of manganese ranging from 1 to 3 wt% as promoter were prepared by co-impregnation method. The catalysts were characterized by N2 physisorption, XRD, TPR, SEM and TEM. Their catalytic activity towards syngas methanation reaction was also investigated using a fixed-bed integral reactor. It was demonstrated that the addition of manganese to Ni/Al2O3 catalysts can increase the catalyst surface area and average pore volume, but decrease NiO crystallite size, leading to higher activity and stability. The effects of reaction temperature, pressure and weight hourly space velocity (WHSV) on carbon oxides conversion and CH4 formation rate were also studied. High carbon oxides conversion, CH4 selectivity and formation rate were achieved at the reaction temperature range of 280 300℃. | Anmin Zhao Weiyong Ying Haitao Zhang Hongfang Ma Dingye Fang | 2012 | Journal of Natural Gas Chemistry2012，21，2： | 15 |
| 3 | A New Gigantic Sauropod Dinosaur with the Deepest Known Body Cavity from the Cretaceous of Asia显示文摘摘要:sauropod 恐龙 Huanghetitan ruyangensis 的新种基于下列人物被树立:有到达至少 2.93 m 的一根背面的肋骨的最深的身体洞有塑造蘑菇的神经脊骨的长、前面的尾的 vertebrae。基于在 Ruyang 的早迟了的白垩纪 Mangchuan 形成发现的 Huanghetitan 的这个新标本,河南省省,家庭 Huanghetitanidae fam。nov。作为一个新等级被建议包括仅仅类尤胡昂黑蒂坦等。2006。目前, Huanghetitan 包括二种:H。liujiaxiaensis 你等, 2006 并且 H。ruyangensis sp。nov。在 sauropod 恐龙之中的 Huanghetitan 的系统的关系简短被讨论。 | XU Li ZHANG Xingliao HU Weiyong WU Yanhua JIA Songhai JI Qiang | 2007 | Acta Geologica Sinica(English Edition)2007，81，2： | 10 |
| 4 | Distribution feature of terrestrial heat flow densities in the Bohai Basin,East China显示文摘Temperature logging curves at 8 boreholes and well-testing temperature data at 142 boreholes are used to determine geotemperature gradients in the Bohai Basin. The thermal conductivities of 86 rock samples are measured at laboratory and the effects of porosity and temperature are corrected to obtain conductivities in situ. Terrestrial heat flow densities at 76 wells are determined based on these data. The distribution of the heat flow indicates that the terrestrial heat flow in the Bohai Basin is relatively high with an average value of 65.8 mW/m2. This characteristic is caused by the tectonic evolution of the basin. During Cenozoic, the litho-sphere stretched intermittently and the crust thinned so that heat conducted from the mantle increased and formed thermal abnormity at depth beneath the basin. | WANG Liangshu LIU Shaowen XIAO Weiyong LI Cheng LI Hua GUO Suiping LIU Bo LUO Yuhui CAI Dongsheng | 2002 | Chinese Science Bulletin2002，47，10： | 10 |
| 5 | Analysis and Testing of Microvibrations Produced by Momentum Wheel Assemblies显示文摘The microvibrations produced by momentum wheel assemblies(MWA) can degrade the performance of instruments with high pointing precision and stability on spacecraft.This paper concentrates on analyzing and testing the microvibrations produced by MWA.We analyze the disturbance sources produced by mass imbalance,structural mode,bearing irregularity and nonlinear stiffness,and random noise;then,test a well-balanced MWA by a highly sensitive measurement system consisting of a Kistler table and an optical tabletop.The results show that the test system has a resolution of less than 0.003 N in the frequency range of 3-300 Hz.The dynamic imbalance of the MWA cannot excite the radial rocking mode,but there are dynamic amplifications when the poly-harmonic disturbances intersect with the structural modes.Especially at high rotational speed(>3 000 rev/min),the main disturbance sources of the MWA come from the bearing irregularity interacting with radial translation mode in the high frequency range.Thus,bearing noise deserves more attention for the well-balanced MWA,and alternative of high quality bearings are proposed to reduce the microvibrations. | ZHOU Weiyong LI Dongxu LUO Qing LIU Kun | 2012 | Chinese Journal of Aeronautics2012，25，4： | 8 |
| 6 | A New Sauropod Dinosaur from the Late Cretaceous Gaogou Formation of Nanyang,Henan Province显示文摘一张新 sauropod 恐龙 Baotianmansaurus henanensis 情报。et sp。nov。从 Neixiang 的白垩纪 Gaogou 形成,河南省省被树立。它被 somphospondylous presacral vertebrae 描绘;背面的 vertebrae 上的一个高度开发的薄板系统;横向的过程由四个薄片支持了;并且前面的 centroparapophyseal 薄板的背面的部分被区分,与延长到 prezygapophysis 的腹的表面的一个小分支。它代表新 titanosauriform sauropod。 | ZHANG Xingliao Lǔ Junchang XU Li LI Jinhua YANG Li HU Weiyong JIA Songhai JI Qiang ZHANG Chengjun | 2009 | Acta Geologica Sinica(English Edition)2009，83，2： | 5 |
| 7 | Reaction and deactivation kinetics of methanol-to-olefins process based on a special TGA reactor显示文摘Thermax 700 thermo gravimetric analysis (TGA) instrument is introduced for the investigation of the reaction and deactivation kinetics of Methanol-to-Olefins (MTO) process with SAPO-34 catalyst.By the use of a special sample basket,the TGA instrument can be viewed as a plug flow fixed-bed reactor,while the weight change of SAPO-34 during reaction can be recorded online.Kinetic data are acquired in the temperature range of 648.2?748.2 K and space velocities of 7.08?35.91 h?1 (WHSV).Catalyst activity is expressed with average coke content,and selectivity for different products is related as a function of coke content and temperature.Methane is also introduced into the lumping kinetic model,and power exponent function with first-order reaction is adopted for model deduction.Exponential function is tested to give the best fit for catalyst activity and product selectivity with the highest correlation coefficient.The nicely agreed results between experimental and calculated data suggest that the overall kinetic model would be meaningful in both product distribution prediction and reactor simulation. | Hao Hu Weiyong Ying Dingye Fang | 2010 | Journal of Natural Gas Chemistry2010，19，4： | 4 |
| 8 | Insight into mineral flotation fundamentals through the DFT method显示文摘Flotation is a complex process that occurs in solid-liquid-gas multiphase systems,and its main factors include the minerals,separation medium,as well as various flotation reagents.The study of mineral properties and interactions with other components such as reagents and water lays the basic theoretical foundation for flotation.Density functional theory(DFT) calculations can qualitatively evaluate the exchange of matter and energy between the mineral system and the surroundings and quantitatively characterize these behaviors,which greatly expands the breadth and depth of flotation studies.This review systematically summarizes the advances of flotation research based on DFT studies,including the study of mineral crystal chemistry represented by the theory of lattice defects,mineral surface hydration such as hydrophilicity and hydrophobicity,surface regulation mechanism,and collecting mechanism based on surface adsorption theory.More significantly,it systematically elaborates different types of collectors according to their characteristics and emphatically explains the mechanism of some typical collectors in detail. | Weiyong Cui Jianhua Chen | 2021 | International Journal of Mining Science and Technology2021，31，6： | 4 |
| 9 | Effects of the Different Supports on the Activity and Selectivity of Iron-Cobalt Bimetallic Catalyst for Fischer-Tropsch Synthesis显示文摘硅石,氧化铝,和活性炭支持了铁钴催化剂被早期的湿受精准备。这些催化剂被赌注, X 射线衍射(XRD ) ,和规划温度的减小(TPR ) 描绘了。为公司加氢在不同搬运人上支持的铁钴的活动和选择在 1.5 MPa 的条件下面被学习, 493 K, 630 h (? 1 ) ,并且 1.6 的 H2/CO 比率。结果显示这项活动, C4 olefin/(C4 olefin+C4 石蜡) 在 Fe-Co/SiO2, Fe-Co/AC1, Fe-Co/A12O3 和 Fe-Co/AC2 的顺序的比率,和 C5 olefin/(C5 olefin+C5 石蜡) 减少。Fe-Co/SiO2 的活动到达了最大值。TPR 的结果证明 Fe-Co/SiO2 催化剂,到某程度不同。XRD 模式证明 Fe-Co/SiO2 催化剂与其它显著地不同;它有二衍射峰。活跃尖晶石阶段与支持被相关。给词调音:Fischer-Tropsch;二金属的催化剂;铁;钴;支持;硅石;氧化铝;活性炭; | Xiangdong Ma Qiwen Sun Fahai Cao Weiyong Ying Dingye Fang | 2006 | Journal of Natural Gas Chemistry2006，15，4： | 3 |
| 10 | Product distributions of Fischer-Tropsch synthesis over Co/AC catalyst显示文摘The product distributions of Fischer-Tropsch synthesis over Co/AC catalyst are investigated under different reaction conditions in an integral fixed bed reactor.It is found that the product distributions deviate from the ASF distribution.The deviation from ASF distribution is analyzed by taking the readsorption of alkenes and the following secondary reaction into consideration.It is noted that the contents of alcohol,alkene and alkane decline with the increasing carbon number,showing a slighter declining tendency of alkanes than those of alkenes and alcohols.It is also found that high temperature,space velocity,H2/CO in feed gas and low pressure are preferential for light hydrocarbons and alcohols while against the chain propagation.The effect of space velocity on the product distributions especially on the light products is not obvious.It is noticed that low temperature,space velocity,H2/CO and high pressure lead to high contents of alcohols;high temperature,H2/CO and low space velocity lead to high contents of alkanes.The effect of pressure on the amounts of alkanes is not significant;high space velocity and low temperature,pressure,H2/CO are preferential for alkenes. | Weixin Qian Haitao Zhang Weiyong Ying Dingye Fang | 2011 | Journal of Natural Gas Chemistry2011，20，4： | 3 |
| 11 | Effect of the operation parameters on the Fischer-Tropsch synthesis in fluidized bed reactors显示文摘For the Fischer-Tropsch synthesis(FTS), this paper presents a numerical investigation in a 3 D fluidized bed reactor. The effect of the operation parameters such as bed temperature, superficial gas velocities, particle size and bed heights is discussed. A 3 D-CFD model coupled with FTS chemical kinetics was set up. The computational results are compared with experimental data in terms of the components production rates, etc. The analysis shows that the bed heights, the bed temperature, the superficial gas velocities and particle sizes affect the C_(5+) selectivity and the reaction rates. Product yields are dependent on the operating conditions especially the temperature. | Xiaolai Zhang Weixin Qian Haitao Zhang Qiwen Sun Weiyong Ying | 2018 | Chinese Journal of Chemical Engineering2018，26，2： | 3 |
| 12 | Effects of the ratio of Fe to Co over Fe-Co/SiO_2 bimetallic catalysts on their catalytic performance for Fischer-Tropsch synthesis显示文摘The Fe-Co/SiO2 bimetallic catalysts with different ratios of Fe to Co were prepared by aqueous incipient wetness impregnation. The catalysts of 10%Fe:0%Co/SiO2, 10%Fe:6%Co/SiO2, 10%Fe:2%Co/SiO2, 10%Fe:10%Co/SiO2, 6%Fe:10%Co/SiO2, 2%Fe:10%Co/SiO2 and 0%Fe: 10%Co/SiO2 by mass were tested in a fixed reactor by the Fischer-Tropsch synthesis. Activity and hydrocarbon distribution were found to be determined by the ratio of iron to cobalt of the catalysts. Higher iron content inhibited the activity, whereas higher cobalt content enhanced the activity of the Fe-Co/SiO2 catalysts. On the other hand, for the catalysts of 10%Fe:6%Co/SiO2, 10%Fe:10%Co/SiO2, 6%Fe:10%Co/SiO2, and 2%Fe:10%Co/SiO2, the total C2-C4 fraction increased (from 10.65% to 26.78%) and C5+ fraction decreased (from 75.75% to 57.63%) at 523 K. Temperature programmed reduction revealed that the addition of cobalt enhanced the reducibility of the Fe-Co/SiO2 catalyst. Metal oxides were present in those catalysts as shown by XRD. The Fe-Co alloy phase was found in the 2%Fe:10%Co/SiO2, 6%Fe:10%Co/SiO2, 10%Fe:10%Co/SiO2, 10%Fe:6%Co/SiO2 catalysts and their crystals were perfect. | Xiangdong Ma Qiwen Sun Weiyong Ying Dingye Fang | 2009 | Journal of Natural Gas Chemistry2009，18，2： | 2 |
| 13 | Effects of promoters on catalytic performance of Fe-Co/SiO_2 catalyst for Fischer-Tropsch synthesis显示文摘2%Fe-10%Co/SiO2 catalysts with different potassium or zirconium loadings were prepared by aqueous incipient wetness impregnation and tested for Fischer-Tropsch synthesis in a flow reactor, using H2/CO = 1.6 (molar ratio) in the feed, under the condition of an overall pressure of 1 MPa, GHSV of 600 h-1 and temperature of 503 K. The zirconium and potassium promoters remarkably influenced hydrocarbon distribution of the products. CO conversion increased on the catalysts with the increase of zirconium loadings, which indicated that zirconium enhanced the activity of iron-cobalt catalysts. Low potassium loadings also enhanced the activity of the catalysts. However, high potassium loading made CO conversion on the catalysts decrease and weakened the secondary hydrogenations. The catalyst was characterized by BET, XRD and TPR. The catalyst characterization revealed that the Co3O4 phase was presented on the fresh catalyst, whereas the spinel phase of Fe-Co alloy and CoO existed on the used catalyst. | Xiangdong Ma Qiwen Sun Weiyong Ying Dingye Fang | 2009 | Journal of Natural Gas Chemistry2009，18，3： | 2 |
| 14 | Numerical simulation of effect of gas distributor on Fischer-Tropsch synthesis in fluidized-bed reactor显示文摘Circular and branched pipe distributors were designed for Fischer-Tropsch synthesis in a fluidized-bed reactor. A numerical investigation of the effects of these distributors on product selectivity and production rate was performed. Under the same conditions, the circular distributor gave higher production rates for small diameter particles. For superficial gas velocities ranging from 5 to 15 times the minimum fluidization velocity, the production rates of methane and C5+(the sum of C10H22 and C22H46)were 18%, which was 2% higher than those using the branched pipe distributor, while the C5+ selectivity was 1% lower. For deeper beds, the circular distributor led to higher production rates and the selectivity for C5+ was 5% lower than that using the branched pipe distributor. | Xiaolai Zhang Guangwei Zhai Weixin Qian Haitao Zhang Qiwen Sun Weiyong Ying | 2019 | Particuology2019，17，4： | 2 |
| 15 | A Stochastic Model on One-Unit Repairable Systems with Multiple Degenerative States显示文摘这份报纸为有多重失败的退化系统基于比例的危险和比例的颠倒的危险模型说的一个一个单位学习一个维护模型。作者调查怎么参数影响操作的系统配置和修理乘和因此系统性能的变化。而且,作者也每统一时间为长期间平均支出导出明确的表示。在一个更新周期定位修理的最佳的数字的一个算法也被讨论。 | LI Xiaohu DING Weiyong | 2018 | Journal of Systems Science & Complexity2018，31，3： | 2 |
| 16 | Synthesis of ethylidene diacetate from dimethyl ether,CO and H_2显示文摘Ethylidene diacetate was prepared by reacting dimethyl ether,acetic acid and syngas in the presence of a catalytic system comprising RhI3,PPh3 and CH3I.The effects of reaction temperature,pressure,time and the CO/H2 molar ratio on the conversion of dimethyl ether and the product selectivity were investigated under the same catalyst formulation.Results showed that a maximum conversion of dimethyl ether was obtained when a mixture consisting of 0.3 mol dimethyl ether and 120 ml acetic acid was reacted at 180 ℃ and 3.0 MPa for 10 h at a stirring speed of 600 rpm under a syngas flow with a CO/H2 molar ratio of 2.5,which was catalyzed by a catalyst mixture comprising 0.3 g RhI3,6 g PPh3 and 1.3 g CH3I.The selectivity of ethylidene diacetate increased with temperature,decreased with the CO/H2 molar ratio and exhibited a maximum with pressure. | Dianhua Liu Xin Huang Lei Hu Dingye Fang Weiyong Ying Dasheng Chen | 2010 | Journal of Natural Gas Chemistry2010，19，2： | 2 |
| 17 | Pretreatment of Alumina and Its Influence on the Properties of Co/Alumina Catalysts for Fischer-Tropsch Synthesis显示文摘早期的湿受精方法准备的 16.6%Co/ γ - Al2O3 催化剂被用于 Fischer-Tropsch 合成。支持与 NH4NO3 水的答案的不同集中被预先对待。支持的性质和 supported-cobalt-based 催化剂的性能上的支持预告的处理的效果被调查。为了与 NH4NO3 水的答案对待支持,扩大了γ A l2O3 的毛孔,减少杂质 Na2O 内容,并且削弱了γ A l2O3 的表面酸味。在支持的性质的变化减少了在钴种类和支持之间的相互作用,提高了 CO 加氢率和 C5+ 选择。为所有催化剂,增加反应温度增加了 CO 加氢率或 CO 变换,稍微减少了全部的烃选择,并且赞成了甲烷和轻烃的形成,当链生长概率减少了时。为16.6%Co/ γA l2O3 催化剂,准备了,支持与 100 g/L NH4NO3 水的答案, CO 变换, CH4 选择,和C5+选择对待分别地是83.13%,6.86%和82.75%,并且链生长概率在 493 K 的条件下面是 0.83 , 1.5 MPa , 500 h ? 1 并且到是 2.0 在里面喂的公司的 H2 的臼齿的比率。 | Chen Li Qiwen Sun Fahai Cao Weiyong Ying Dingye Fang | 2007 | Journal of Natural Gas Chemistry2007，16，3： | 2 |
| 18 | Ni- AlzO3 catalysts prepared by sSotution combustion method for syngas methanation 显示文摘 | Zhao Anmin Ying Weiyong Zhang Haitao | 2012 | Catalysis Communications2012，17，： | 1 |
| 19 | Experimental study and spring - component modeling of extended end - plate joints in fire 显示文摘 | WANG Weiyong LI Guoqiang DONG Yuli | 2007 | Journal of Constructional Steel Research2007，63，8： | 1 |
| 20 | Experimental study on bubble rising and descending velocity distribution in a slurry bubble column reactor显示文摘 | ZHANG Lijuan LI Tao YING Weiyong | 2008 | Chem Eng Technol2008，31，9： | 1 |
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