The influences of preparation methods on catalyst activity were examined.
考察了制备方法对催化剂活性的影响。
The silylation of support TS-1 led to the increase of catalyst activity and selectivity.
对载体进行适量的硅烷化处理，有利于提高催化剂的活性和选择性。
The catalyst activity somewhat decreased and the stability of the catalyst was improved obviously.
催化剂的活性有所降低，稳定性显著增强。
The catalyst activity and stability are increased, and in the same time the catalyst cost is reduced.
提高催化剂活性和稳定性，同时降低催化剂成本。
From the Pt loading and catalyst activity, the conditions of the electrolytic impregnation were studied.
从催化剂的负载量和催化活性出发，对电解负载的实验条件进行了探讨。
Main reasons for decrease of catalyst activity were discussed, and catalyst regeneration experiment was made.
讨论了催化剂活性下降的主要原因，并进行了催化剂再生实验。
Mechanical test results must be evaluated In conjunction with catalyst activity, selectivity, and stability data.
必须将机械测试结果和催化剂活性、选择性和稳定性数据联系起来进行综合评价。
The results showed that the interaction between metal and support is the main factor affecting catalyst activity and stability.
结果表明，金属与载体之间的相互作用是影响催化剂活性和稳定性的重要因素。
Compared with conventional reduction, the reduction time is greatly shortened and catalyst activity after reduction is much better.
与常规还原法相比，快速还原法大大缩短了还原时间，且还原后催化剂活性更好。
The application of thermal analysis on the evaluation the catalyst activity in the deep oxidation of polyaromatic compounds was investigated.
应用热分析技术对多环芳烃化合物催化氧化反应过程中催化剂初活性进行评价。
The catalyst was prepared by impregnating depositing process and the catalyst activity was evaluated with a continuous flow fixed bed reactor.
采用固定床连续流动反应装置，对此催化剂用于气相苯加氢制环已烷的活性进行评价。
Catalyst activity was determined by not only specific surface area of catalyst but also the distributions of active center and utilization ratio of internal surface.
催化剂活性不仅与比表面有关，还与其活性中心分布情况、内表面利用率有关。
The resu1ts show that the larger the pore volume and surface area based on loading volume of hydrotreating catalyst, the higher of the catalyst activity based on LHSV.
实验结果表明，单位装填体积催化剂的孔穿和比表面越大，则对应体积空速的催化剂活性越高。
It is indicated by the operation that the bed pressure difference of the catalyst bed is obviously decreased and that the catalyst activity is not affected after water washing.
运行结果表明，水洗后催化剂床层压差明显降低，活性没有受到影响。
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.
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 results demonstrated that employment of ultrasonic wave has benefit on the maintenance of catalyst activity. The interspace of nickel (111) crystal face increases its distance at 1.5%.
结果表明超声波能促进镍基催化剂活性，使镍微晶(111)晶面间距增大1.5%、并保持高分散态。
Some other methods for improving catalyst activity such as cathode catalyze, alloy catalyst are also reviewed in the paper. Finally, some reasonable advises are given based on these progresses.
也回顾了一些用于改善催化剂活性的其他方法，如阴极催化、合金催化剂，根据这些进展，对今后的研究方向提出了建议。
Besides increasing the catalyst activity, the pre-polymerization can not only raise the bulk density and isotacticity of the PP product, but also significantly diminish the cracking of the PP powders.
预聚除能够提高催化剂的活性外，对提高聚丙烯粉料的表观密度和等规指数、减少聚丙烯颗粒的破碎有显著影响。
Phosphomolybdic acid is widely used as active catalyst owing to its acid and redox activity.
磷钼酸具有良好的酸性和氧化还原活性，被广泛用作活性催化剂。
The experimental results show that the catalyst has high catalytic activity and stability.
结果表明，该催化剂具有较高的催化活性和稳定性。
The results obtained from comparison tests with imported catalysts show that the catalyst has higher activity and selectivity.
对比评价表明，自制的催化剂活性及选择性高于进口的液相醛加氢催化剂。
The experimental results showed high catalytic activity of the catalyst, mild reaction conditions, and convenient in application.
实验结果表明该催化剂活性高，反应条件温和，方法简便。
The alkylation catalyst has superior activity and stability; it can be widely used in similar new-built units or revamping for capacity expansion of old units.
烷基化催化剂具有良好的活性和稳定性，可在同类装置新建或扩能改造中推广应用。
Taking the synthesis of butyl acetate by the catalytic esterification of acetic acid and butanol as a probe reaction, a series of studies on the preparation of the catalyst and its activity was made.
以乙酸和正丁醇催化酯化合成乙酸丁酯为探针反应，对氧化铌负载型催化剂的制备与催化活性进行了一系列研究，得出了优惠工艺条件。
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 results show that immobilized catalyst has higher catalytic activity. The catalyst can be used times. The yield of glyceryl triacetate is above 92%.
实验表明：固定化催化剂活性高、可以重复使用多次，三醋酸甘油酯收率可达92 %以上。
The lab results showed that the catalyst has good activity, selectivity and stability.
实验室研究结果表明，该催化剂具有良好的活性、选择性和稳定性。
PdPM was used as a hydrocracking catalyst, which exhibited high activity of hydrocracking, strong aromatic saturation and good isomerization performances at lower temperature.
结果表明，钯层柱粘土是一种低温下裂化活性高、芳烃饱和性能强、异构化性能好的加氢催化剂。
Higher temperature of furnace increases the activity of the catalyst.
炉温的升高有利于提高催化剂的活性。
Pre-reduction can deactivate the activity of catalyst.
预还原则降低了催化剂的活性；
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