建立了测量催化剂颗粒形状系数的实验装置。
An equipment used to determine the shape factor of catalyst was established in this paper.
在一个优选的实施方案中，所述颗粒为催化剂颗粒。
In a preferred embodiment the particles are catalyst particles.
本文将弹性力学方法引入催化剂颗粒内应力分布的计算。
The mechanical strength of catalyst particles depends not only upon their materials, but also upon their shape and size.
通过对床层压降的测定，从而得出催化剂颗粒的形状系数。
The shape factor can be obtained by determining the pressure drop of a fixed bed packed with a certain catalyst.
催化剂的活性中心位于胶粒表面，催化剂颗粒是无定形的。
The active center lay on the surface of the colloidal particle. The particles were amorphous.
为了测定催化剂颗粒的磨损，可使用三种基本磨损测试装置。
For measuring abrasion of catalyst particles, three basic attrition test apparatus are used.
在纳米螺旋碳纤维中的催化剂颗粒表层，可能有铜的氧化物存在。
There maybe has oxide of copper in the surface of nano copper catalyst particles.
失活催化剂颗粒间出现粘连，再生催化剂的颗粒粘连现象有所改善。
Deactivated catalyst particles have some agglomeration, the particle agglomeration of regenerated catalyst is improved.
对两种薄片结构的异形多通孔催化剂颗粒的传热特性进行实验研究。
The irregular shape catalysts are catalysts with through-holes formed by flakes.
采用区域分割法还可以计算催化剂颗粒死区半径，所得计算结果合理。
The radius of dead zone can also be determined by using the domain division method, and the calculated results are reasonable.
借助上升的液体反应物和气流使催化剂颗粒维持在悬浮状态的一种流化床。
A type of fluidized bed in which catalyst particles are held in suspension by the upward movement of the liquid reactant and gas flow.
产生上述的差异主要与煅烧对催化剂颗粒度、分散性及酸碱性的改变有关。
That the calcination process will change the graininess, dispersity and acidity-basicity of the catalyst can explain the discrepancy of the above phenomena.
催化剂是通过在甲醇合成催化剂颗粒的周围形成甲醇脱水用催化剂层而制成。
The catalyst is prepared by forming the methanol dehydration catalyst layer around the methanol synthesis catalyst.
本文通过转动成型法对5a分子筛原粉进行成型，研究了影响催化剂颗粒强度的因素。
In this paper, the powder stock of 5a molecular sieve was formed by method of rotational forming and factors influencing particle intensity of catalyst were studied.
对比C301甲醇合成催化剂颗粒形状系数的测定值和计算值，证明了该装置的可靠性。
The experimental results of shape factor compared with calculated value of C301 catalyst indicated that this equipment is reliable to be used.
研究了环形、车轮形及蜂窝形等异形催化剂颗粒的有效因子、固定床传热性能及其压降。
The technology of making abnormal shape catalyst particles is recently developed mainly for the enhancement of their effectiveness factors with low pressure drops in fixed bed reactors.
且催化剂颗粒较大，易于从反应产物中分离，催化剂可重复使用，明显降低了生产成本。
Its advantages include high activity and selectivity of catalyst, easy separating and reuse of catalyst, and low cost.
如果能让催化剂颗粒的尺寸保持在较大的水平，那么设备的稳定性就可以在400个循环内保持不变。
Once the material formed somewhat larger particles, performance stabilized and remained stable out to 400 cycles.
本发明所用催化剂是由甲醇合成催化剂和在甲醇催化剂颗粒周围形成的脱水催化剂层组成。
The catalyst used in the invention is comprised of a methanol synthesis catalyst and dehydration catalyst layers formed around methanol catalyst particles.
催化剂颗粒形态对ECP中微量杂质成分非常敏感，ECP的质量是影响催化剂粒形最主要的原因。
And the quality of ECP has the up-most effect on the morphology of catalyst particle.
这里，提出三步纯化法，去除了碳纳米管阵列顶端的催化剂颗粒，极大地增强了碳纳米管的表面场强。
The catalyst grains on the top of CNTs is removed by using three step purified method in this paper, the electric field intensity is enhanced.
此外，溶剂对催化剂活性组分的浸取以及气流中催化剂颗粒的夹带亦是导致催化剂活性降低的部分原因。
Besides, leaching out of catalyst ingredients in inert liquid medium and entraining of small catalyst particles in outlet stream were to some extent responsible for the catalyst deactivation.
采用正交配置法对多孔催化剂颗粒内反应物浓度分布进行了计算，在此基础上可以获得催化剂效率因子的值。
The concentration profile of reaction components in a porous catalyst pellet was calculated with orthogonal collocation, from which the efficiency factors of porous catalysts could be obtained.
云的催化是指将催化剂颗粒打入云中使云中的水蒸汽凝聚成水滴，从而实现降雨的技术，催化剂颗粒通常为碘化银。
Cloud-seeding is a technique to enhance rainfall by introducing particles - often silver iodide crystals - into cloud systems, to help condense water vapor into raindrops.
所述多层薄膜提供增大的表面积，并在催化活性与可用来支 承催化剂颗粒的表面面积相关联的装置中尤其有用。
The multilayer films provide increased surface area and are particularly useful in devices where catalyst activity is related to the surface area available to support catalyst particles.
又称催化剂真密度。表示炼油工艺流化床催化剂密度的一种方式。它是扣除了催化剂颗粒内微孔体积后的实体密度。
Based on the compaction model of sandstone mudstone alternating beds, we advance a new formula for formation grain density, which conforms to grain volume and mass balance law.
它包括电解质膜、硅橡胶密封圈、多孔阳极板，及在所述电解质膜和多孔板之间的自由铺放的方式形成的催化剂颗粒层。
It includes electrolyte membrane, silicone rubber seal ring, multihole anode plate, and free lay mode formed granules of catalyst layer between said electrolyte membrane and multihole plate.
实验研究结果表明：分子筛催化剂颗粒粒径的大小对壁面传热系数和总传热系数影响大，而对中央区的传热系数无影响。
Experimental results reveal that this diameter exerts strong influence to the overall heat transfer coefficients and that on the wall, but irrelevant to that in the central zone.
由CO、co_2加氢合成甲醇的反应是一个复合反应体系，其催化剂颗粒内的浓度分布的表征方程为二阶常微分方程组。
The hydrogenation reaction of co and CO2 to synthesize methanol is a multiple reaction system. The distributions of concentrations are described by second order ordinary differential equations.
在重油催化裂化沉降器中结焦物质包括油气组分、油液滴和催化剂颗粒，结焦的环境和条件指沉降器内的物料流场、温度场和浓度分布情况。
The substances easy to coke including oil-gas in gas phase, the heavy fractions of oil-gas in liquid phase and the catalyst particles.
应用推荐