|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 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 |
| 2 | Effect of copper loading on texture,structure and catalytic performance of Cu/SiO_2 catalyst for hydrogenation of dimethyl oxalate to ethylene glycol显示文摘Cu/SiO2 catalysts prepared by a convenient and efficient method using the urea hydrolysis deposition-precipitation (UHDP) technique have been proposed focusing on the effect of copper loading.The texture,structure and composition are systematically characterized by ICP,FTIR,N 2-physisorption,N2O chemisorption,TPR,XRD and XPS.The formation of copper phyllosilicate is observed in Cu/SiO2 catalyst by adopting UHDP method,and the amount of copper phyllosilicate is related to copper loading.It is found the structure properties and catalytic performance is profoundly affected by the amount of copper phyllosilicate.The excellent catalytic activity is attributed to the synergetic effect between Cu0 and Cu +.DMO conversion and EG selectivity are determined by the amount of Cu0 and Cu+,respectively.The proper copper loading (30 wt%) provides with the highest ratio of Cu + /Cu0,giving rise to the highest EG yield of 95% under the reaction conditions of p=2.0 MPa,T=473 K,H2/DMO=80 and LHSV=1.0h-1. | Bo Zhang Shengguo Hui Suhua Zhang Yang Ji Wei Li Dingye Fang | 2012 | Journal of Natural Gas Chemistry2012，21，5： | 13 |
| 3 | 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 |
| 4 | 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 |
| 5 | 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 |
| 6 | Simulation and model design of pipe-shell reactor for the direct synthesis of dimethyl ether from syngas显示文摘模拟基于被暗淡乙醇醚的合成的全球动力学的模型在一个双性人上从 syngas 建立的管子壳反应堆的模型被做功能的催化剂。模拟的结果证明为暗淡乙醇醚(DME ) 和公司的变换的选择更高,但是热点在管子壳反应堆的温度限制下面被保留。管子的合适的直径是 38 ×管子的 2 公里,和长度是 5.8 m。反应堆的最佳的过程条件是压力是 5 MPa,冷却的水的温度是 240 ° C,并且在反应堆的入口的未加工的气体的温度是 220 ° C。这个反应堆的生产是 102800 t/y (吨每年) 在这些条件下面。 | Yanfang Hu Zhaoguang Nie Dingye Fang | 2008 | Journal of Natural Gas Chemistry2008，17，2： | 3 |
| 7 | Mathematical Simulation and Design of Three-Phase Bubble Column Reactor for Direct Synthesis of Dimethyl Ether from Syngas显示文摘一个三阶段的反应堆数学模型被设置从 syngas 为暗淡乙醇醚(DME ) 的直接合成模仿并且设计一个三阶段的泡罩塔反应堆,认为两个是部分惰性载体背在转移上混合的影响和对反应的催化剂谷物沉积的影响。根据这个模型,尺寸的影响和能力上的 100000 t/a DME 反应堆的反应条件被调查。10000 t/a DME 合成反应器的优化尺寸如下被建议:直径 3.2 m,高度 20 m,内建 400 试管热空气冷却换热器(38 ?á 2 公里) ,并且惰性的热载体石蜡油 68 t 和催化剂 34.46 t。反应温度和压力是为不同尺寸反应堆影响反应变换的重要因素。在一致催化剂集中分发的条件下面,高压和温度被建议完成 DME 的一个更高的生产能力。为 DME 合成的新鲜 syngas 的最好的比率是 2.04。给词调音:暗淡乙醇醚;syngas;三阶段的反应堆;DME 合成;泥浆床; | Dianhua Liu Xing Hua Dingye Fang | 2007 | Journal of Natural Gas Chemistry2007，16，2： | 3 |
| 8 | 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 |
| 9 | 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 |
| 10 | 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 |
| 11 | 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 |
| 12 | ForceoptimizationofionicpolGymermetalcompositeactuatorsbyanorthogonalarraymethod显示文摘 | YuM HeQS DingY | 2011 | ChineseSciBull2011，56，19： | 1 |
| 13 | Determination of kinetics and thermodynamics of thermal decomposition for polymers containing reactive flame retardants: application to poly ( lactic acid ) blended with melamine and ammonium polyphosphate显示文摘 | DINGY MCKINNON M B STOLIAROV S I | 2016 | Polymer Degradation and Stability2016，129，： | 1 |
| 14 | Inclusioncomplexesesoffluorofenidonewithβ-cyclodextrinandhydroxypropyl-β-cyclodextrin显示文摘 | WANGS DINGY YAOY | 2009 | DrugDevIndPharm2009，35，7： | 1 |
| 15 | Novel meehanism of hypertension revealed by cell-specific targeting of human angiotensinogen in transgenic mice显示文摘 | Davisson RL DingY Stec DE | 1999 | Physiol Genomies1999，，： | 1 |
| 16 | Static hand-gesture recognition using HOG and improved LBP features 显示文摘 | DINGY | 2011 | International Journal of Digital Content Technol- ogy and its Applications2011，5，11： | 1 |
| 17 | Adsorption-enhanced steam- meth- ane reforming显示文摘 | DINGY ALPAY E | 2000 | Chemical Engineering Science2000，55，18： | 1 |
| 18 | Mullite fibres preparation by aqueous sol-gel process and activation energy of mullitization显示文摘 | TAN H B DINGY P YANG J F | | 0，，1： | 1 |
| 19 | Effects of simumated hyperglycemia ,insulin ,and glucagons on endothelial nitric oxide synthase expression显示文摘 | DingY Vaziri ND Coulson R | 2000 | AJP-Endocrinology and Metabolism2000，279，1： | 1 |
| 20 | One-potsynthesisofNiFe2O4/Ccompositeasananodematerialforlithium-ionbatteries显示文摘 | DingY YangYF ShaoHX | 2013 | JournalofPowerSources2013，24，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员