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在催化剂
    Applications of plasma techniques in the catalyst preparation
    等离子体技术在催化剂制备中的应用
    Application of PlantWeb Digital Architecture in the Catalyst Plant
    Plant Web在催化剂厂的应用
    The Application of InTouch8.0 Software in the Catalyst Factory
    InTouch8.0在催化剂马蹄炉改造中的应用
    The Application of PLC in the Catalyst Production Working Procedure of Edge Angle Lapping
    PLC在催化剂生产磨角工序中的应用
    The Application of HollySys SmartPro System in the Catalyst Kaolin Unit
    HollySys SmartPro系统在催化剂全白土装置中的应用
    XRD experiments indicated that NiI2 and Cu(OH)2 were generated in the catalyst, and explained the phenomenon of the existence of the induction period during the vapor phase carbonylation of ethanol.
    XRD实验发现在催化剂上有NiI2和Cu(OH)2生成,并对乙醇气相羰基化反应过程中存在诱导期的现象给出了合理的解释。
    Again passed to catalyst P/V atomic ratio determination, add differently promoters and the influence of promoters atom to the catalyst mainfested (VO)_2P_2O_7, we also the promoters' existence form in the catalyst, but also inspected the catalyst precursors to activated in the temperature and the time, the activation airspeed, the feed gas the oxygen content as well as the catalyst dry way and the increase carrier to the catalyst performance influence.
    再通过对催化剂P/V原子比的确定、不同助剂的添加以及助剂原子对催化剂主要活性相(VO)_2P_2O_7的影响,以及助剂原子在催化剂中的存在形式,考察了催化剂前驱体活化温度和时间、活化空速、原料气中氧气含量以及催化剂的干燥方式和添加载体和扩孔剂对催化剂性能的影响。
    The results, 1.951% of P and 0.113% of Rh in the catalyst, are very close to the estimated values.
    结果表明:磷和铑在催化剂中的百分含量分别为1.951%和0.113%,与理论估算值非常接近。
    It was found in the XRD study that CuO and ZnO exist in the catalyst before its reduction and Cu and ZnO exist in the catalyst after its reduction.
    XRD研究发现,在催化剂还原前后,分别存在CuO,ZnO和Cu-ZnO晶相.
    When exposed to syngas, these reducedprecursors valy with the redox environment from Fe~0 to iron carbides,Fe_1-zMn_zO, and finally to (Fe_1-xMn_x)_3O_4. Manganese plays both electronicand structural roles in the catalyst.
    当还原处理过的前驱体被置于合成气中时,随着反应环境的变化Fe0转变为碳化铁、Fe1-zMn2O,最终成为(Fe1-xMnx)3O4。 锰在催化剂中起着电子及结构双重作用。
    100% at a Mo content of 2.47 wt% in the catalyst.
    在催化剂中Mo含量达到 2 47wt%时 ,双氧水的得率可达到 10 0 % .
    The application of InTouch8.0 software in the catalyst factory,the flexibility and efficiency of the InTouch8.0 software is known.
    本文通过InTouch8.0在催化剂马蹄炉控制系统中的实际应用,使大家对InTouch软件在工业监控方面的应用的灵活性、有效性等有所了解。
    The results indicated that,the organic promoter added in the catalyst can enhance interaction between Ru and active carbon,the reduction temperature of the catalyst was also risen from 89 ℃ to 104 ℃.
    结果表明,在催化剂制备过程中,有机助剂的加入,使得钌与活性炭载体之间的作用力增强,催化剂的还原温度从89℃升高至104℃.
    (2) dispersing effect, which inhibit the agglomeration of the catalyst particles effectively, resulting in the decrease of the particle size and the increase of the dispersion degree; (3) energetic effect, which supplied part of energy to keep in the catalyst, making the adsorbed hydrogen and reactant molecules activated and thus facilitate the hydrogenation.
    1.超声波的作用:适当时间的超声波处理能够显著提高RaneyNi的催化活性,考虑到超声波处理并不影响样品的本体晶相结构,因此,超声波对催化活性的促进作用主要归因于(l)清洗作用:能够有效去除催化剂表面和孔道中的杂质,使更多的活性位暴露在催化剂表面,有利于提高活性比表面积,同时增加催化剂的孔容和孔径;
    The physicochemical properties of Bi-P catalyst system and the mechanism of oxi-dation-dehydrodimerization and aromatization of propylene were investigated by usingXPS,PAS, TPR and X-ray diffraction methods. The results indicated that propylene isdissociatively adsorbed on the surface of the catalyst and the activation of α-hydrogenis related to the strength of metal-oxygen bond in the catalyst. The products of allyloxidation depend on the electron transference between the allylic intermediates andthe catalyst.
    研究了Bi-P系催化剂物理化学性质(XPS、PAS、TPR及x-光物相分析)和对丙烯氧化脱氢芳构化的催化作用,结果表明丙烯在催化剂表面上为解离吸附,α-H的活化与催化剂金属-氧键强度有关,烯丙基的选择氧化产物取决于其与催化剂间的电子转移能力。
    The profile of partial pressure of oxygen in the catalyst pore was obtained by numerical solution with explicit Adams-Bashford and implicit Adams-Moulton methods combined together.
    联合使用显式Adams-Bashforth和隐式Adams-Moulton数值解,得到O_2在催化剂孔内的分压分布。
    The results show that the radial distribution of Ga species in the catalyst is uniform, and Ga is highly dispersed on the support, and that a part of Ga ions inserts into the surface layer of the support, resulting in the significant change of surface acidity of the catalyst. In general, the addition of Ga changes the B acidity of the catalysts, but the role of Ga is varied with the Ga loading.
    结果表明,在催化剂内Ga呈均匀的径向分布,且高度分散在载体表面上,部分离子态Ga还嵌入氧化铝的表层,进而导致催化剂的表面酸性特征发生变化,总之,Ga的引人调变了催化剂的B酸性,其变化规律与Ga含量有关。
    This article studied on the existance form of Co at different burning tempera ture in Co /HZSM-5 and existance valence state of deoxidation Co at different tempera ture. combined activity evaluation consequence. obtain the influence relation to benzene and ethylene synthetise phenylethyleneby one step process of reaction activity of Co' s existance form and valence state in the catalyst.
    本文通过对不同焙烧温度Co/HZSM—5中Co存在化台态及不同温度下还原Co存在价态的研究,并结合活性评价结果,得到Co在催化剂中存在的化合态和价态对由和乙烯一步法合成苯乙烯反应活性的影响关系.
    The existence of the Li species serving as an electron donor gives rise to metallic Rh in the catalyst, as evidenced by the XPS results. IR spectra of adsorbed CO indicate that the existence of Mn in the catalyst improved the dispersion of Rh and enhanced the concentration of Rh + species on the surface.
    少量Li的加入导致氢向载体SiO2的溢流,使体系的还原特性发生了明显的变化.原位EPR和XPS研究显示,添加剂与Rh相互作用,在催化剂表面形成了稳定的复合氧化物.助剂Mn主要起着吸引电子的作用,使还原后的催化剂表面上Rh+物种的含量增加;
    The method of doping the trivalent, canon into copper-based catalyst for methanol synthesis is effective in enhancing catalytic activity. The form of chromium in the catalyst and the nature of promotion effect as well as its relation to catalytic activity after doping Cr2O3 into Cu-ZnO-Al2O3 has been studied by XRD, ESR,TPR and the determination of catalytic activity.
    研究了三组份Cu-ZnO-Al_2O_3催化剂添加Cr_2O_3后.铬在催化剂中的存在形式,助催作用本质及其与甲醇含成催化活性的关联。
 

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