Then it discusses the relations of catalytic activity with composition of the catalyst, laser power and melting time.
同时还考查了催化剂组成、激光功率及熔炼时间与丙烯歧化反应活性之间的关系。
The reasons to cause low activity of dehydrogenation catalyst NDC - 4 were investigated by analyzing physical property and composition of the catalyst.
通过对低活性NDC-4型脱氢催化剂物性与组分的分析，研究了影响催化剂性能的因素及催化剂低活性的成因。
Factors affecting coking at the bottom of the fractionator are composition of slurry, temperature, catalyst content and residence time.
影响分馏塔底结焦的因素有分馏塔底油浆的组成、温度、催化剂含量及停留时间。
The effects of catalyst quantity, acetic alcohol mole ratio, acetic acid and ethyl alcohol feed site, reflux ratio and reflux composition on the process are investigated.
对乙酸与乙醇酯化反应体系，考察了催化剂用量、酸醇比、进料位置、回流比、回流组成等因素对过程的影响。
The effect of catalyst composition, microwave irradiation time and system pressure on the reaction was investigated.
考察了催化剂组成、微波辐照时间和体系压力对反应的影响。
The changes of viscosity, hydrocarbon composition and average relative molecular mass of Shengli heavy oil in catalytic upgrading by oil-soluble catalyst XAGD-2 were investigated.
研究了采用油溶性催化剂XAGD - 2催化改质胜利稠油过程中稠油黏度、组成和平均相对分子质量的变化。
Compare three different fish oil materials on fatty acids composition, content and quality indexes, choose menhaden oil for the synthesis of ethyl esters by alkaline catalyst.
比较三种不同鱼油原料脂肪酸组成、含量和各项品质指标，选取步鱼油用碱催化法进行乙酯化反应。
The effects of catalyst composition and properties on yield distribution of catalytic cracking of coker gas oil containing feedstocks were studied.
探讨了以减压瓦斯油掺炼部分焦化蜡油为进料时催化剂组成及性能对催化裂化产品分布等的影响。
The results showed that the macrostructure, the composition of the crystal phase and the catalytic activity of the catalyst are related to the calcining temperature.
结果表明：焙烧温度对催化剂的宏观结构、晶相组成和催化活性均有影响；
Gold and reducible oxide-based composition, method for the preparation and the use thereof in the form of a catalyst, in particular for carbon monoxide oxidation.
基于金和可还原氧化物的组合物，其制备方法和其作为催化剂的用途，尤其是用于一氧化碳的氧化。
The optimal composition of catalyst layer in proton exchange membrane fuel cell (PEMFC) electrode was prepared through orthogonal method, which is called hydrophilic electrode.
利用正交实验设计法优选出质子交换膜燃料电池(PEMFC)电极催化层制备的最佳条件，即制备亲水电极。
Finally, the composition, advantages, water soluble ligand of supported aqueous-phase catalysis system and this kind of catalyst reported already was emphatically introduced.
最后重点介绍了负载水相催化体系的组成、优点、水溶性配体和已报道的此类催化剂。
The effects of feed composition, reflux reaction time and catalyst concentration on PPTD yield were investigated.
采用正交实验，考察了原料投料比、回流反应时间、催化剂等因素对合成的影响。
The petrol composition influent emission of the engine markedly. It is especially important to control petrol composition particularly after three way conversion catalyst were installed in modern car.
汽油成分对排放有较为显著的影响，特别是在现代汽车普遍安装三元催化器后，控制汽油成分就显得尤其重要了。
In addition, on the basis of the information obtained by the characterization of catalyst composition, structure and morphology, activity and deactivation behavior of the catalyst were discussed.
此外，本文结合催化剂的组成、结构和表面形貌的表征对催化剂的催化活性和失活行为进行了讨论。
The effects of catalyst composition, reaction temperature, space velocity, molar ratio of methanol to water, and reaction time on the performance of the microchannel reactor were investigated.
考察了催化剂涂层的配比、反应温度、水醇比、进料速度、反应时间对甲醇重整微槽道反应器性能的影响。
The main factor influencing the yield of maleic anhydride is the phase composition or oxidation state of vanadium in the catalyst, and is not the BET surface area of the catalyst.
实验结果表明，影响顺酐收率的主要因素是催化剂的相组成及钒的氧化态，而不是催化剂的比表面积。
The catalyst composition improves activity of the catalyst.
所述催化剂组合物提高了催化剂活性。
This paper introduces the three-way emission control technology and the principle of auto exhaust catalytic converter. The main composition of the three-way-catalyst is also reviewed.
介绍汽车尾气三效催化净化技术及净化器的主要工作原理，并对三效催化剂主要成分： 载体、 涂层、 活性催化剂及助剂进行论述。
It is shown that the thermal conductivity of the catalyst is high, which is much influenced by temperature and pressure, and less influenced by composition of gas.
研究表明，该催化剂有效导热系数较大，温度、压力影响明显，组成影响较小。
According to composition and performance of the catalysts, a comprehensive summary about how to prolong the catalyst life was introduced.
结合催化剂的组成和性能就如何延长催化剂的使用寿命做了全面总结。
The cleaning agent, corrosion inhibitor and cleaning technology were designed according to the composition of polymer-catalyst dust scale and the condition of equipment.
根据垢样分析结果和设备状况，设计了清洗剂、蚀剂和相应清洗工艺。
The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition.
本发明涉及分子筛催化剂组合物，制备或形成该分子筛催化剂组 合物的方法，以及使用该催化剂组合物的转化方法。
Based on the properties of carbonaceous catalyst, composition of feed gas and the size parameters of reforming reactor, heat and material balance of reactor were established.
基于炭催化剂特性、原料气组成和重整转化反应器的尺寸参数，建立了重整反应器体系的物料平衡和热平衡方程；
Based on the composition of iso-butyl acetate by using sodium dihydrogen phosphate as catalyst, acetic acid and 2-butanol as raw materials, the optimum conditions were determined.
研究了以磷酸二氢钠为催化剂，冰乙酸和异丁醇为原料合成乙酸异丁酯，确定了酯化反应最佳条件。
The invention also provides the use of the composition as a catalyst in the preparation of polynorbornene.
本发明还提供了上述组合物作为催化剂在制备聚降冰片烯中 的应用。
The invention discloses a composition for raising use ratio of catalyst for fuel cell. The composition includes catalyst, ion macromolecules of proton conduction, and couplant.
本发明提供一种提升燃料电池触媒利用率的组合物，包含：触媒、质子传 导离子高分子以及耦合剂；
The invention discloses a composition for raising use ratio of catalyst for fuel cell. The composition includes catalyst, ion macromolecules of proton conduction, and couplant.
本发明提供一种提升燃料电池触媒利用率的组合物，包含：触媒、质子传 导离子高分子以及耦合剂；
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