catalyst selectivity
英 [ˈkætəlɪst sɪˌlɛkˈtɪvɪti]
美 [ˈkætəlɪst sɪˌlɛkˈtɪvəti]
网络 催化剂选择性
双语例句
- 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 catalyst has high selectivity and the whole process is environmentally acceptable.
催化剂有高的选择性。整个过程有好的生产环境。 - This process relies on a catalyst of high selectivity and week activity.
这过程所靠的是一种高选择性和低活性的催化剂。 - The MoPO/ SiO_2 catalyst exhibited high selectivity for propene, which was a possible intermediate for the formation of acrolein. The addition of Te to the catalyst enhanced the conversion of propene to acrolein.
MoPO/SiO2催化剂对丙烷选择氧化制丙烯醛反应的中间产物丙烯选择性较高，而Te的添加促进了丙烯向丙烯醛的转化。 - A hydrocracking catalyst with high selectivity to middle distillates was developed.
开发了一种具有较高的中油选择性的加氢裂化催化剂。 - In other words, the trace amount of HF acts as a reaction promoter and can raise the catalyst selectivity for the alkylation significantly.
这是一个重要和有趣的实验现象，它说明微量HF反应助剂可大幅度提高固体酸催化剂对烷基化反应的选择性。 - Obtaining the Best Process Efficiency by Maintaining High Catalyst Selectivity for Ethylene Oxide Synthesis
保持环氧乙烷催化剂的高选择性提高装置效益 - Choosing glycerol as solvent to recycle catalyst can raise selectivity of EG.
实验结果表明，以丙三醇作为溶剂使催化剂进行循环，能提高EG的选择性，效果好于以生成的EG作为溶剂循环催化剂。 - The effects of the dosage of active components, reaction temperature and gas hourly space velocity on catalyst activity and selectivity were surveyed.
评价了活性组分的添加量、操作温度和空速对催化剂活性和选择性的影响。 - High Co/ Mo ratio was beneficial to improving catalyst selectivity; Co-Mo couple showed relative low olefin saturation ability;
Co-Mo组合对烯烃饱和的能力相对较弱；较高的Co/Mo原子比有利于提高催化剂选择性； - It shows that the catalyst activity and selectivity for hydrocarbons to producing hydrogen through partially oxidizing and reforming method are different from that of the reduction and non-reduction catalysts.
实验结果表明，催化剂的活性组分价态不同，对烃类部分氧化重整制氢反应催化活性、生成氢的选择性影响不同，还原态的好于非还原态的双金属催化剂； - Also discussed in the paper are the effects on catalyst activity and selectivity of solvent quantity, reaction time, catalyst moisture content and methods of addition of butadiene.
文中还讨论了溶剂用量、反应时间、溶剂中水含量及丁二烯加料方式等对催化剂活性和选择性的影响。 - The experiments of the studies were conducted on a laboratory unit and a pilot plant, the results showed that the catalyst has proper selectivity, high nitrogen and metal tolerance abilities, and good hydrothermal and thermal shock stability.
实验室研究和中试放大试验结果表明，该催化剂选择性好，抗碱氮中毒和抗重金属污染能力强，水热稳定性和抗热冲击性能优良。 - Through screening test for the active ingredients it was identified that Pd/ C catalyst has good selectivity for the ( reaction) of fatty nitriles with dimethyl amine to prepare alkyl-dimethyl tertiary amines.
通过对催化剂活性组分的筛选，钯/碳（Pd/C）催化剂对脂肪腈与二甲胺反应制备单烷基二甲基叔胺有良好的选择性。 - Considering defects of Pd catalyst for C_2 alkyne hydrogenation in industrial steam cracking ethylene installation, effects of adding Ag and alkaline metal compounds on catalyst activity, selectivity and stability were investigated.
针对C2馏分加氢除炔Pd催化剂在工业应用中存在的缺陷，考察了添加Ag助剂和碱金属化合物对催化剂的活性、选择性和稳定性的影响。 - A small quantity of acetone in feed material is advantageous to the increase of the catalyst activity, selectivity of MIBK and DIBK, but excess acetone will make against the synthesis reaction process.
反应物相中少量丙酮的存在有利于催化剂活性、MIBK和DIBK选择性的提高，但过量丙酮的存在对合成反应不利。 - And additive also affected the catalyst selectivity significantly.
助剂的加入对催化剂选择性有明显的影响； - The anatase phase of TiO_2 in V_xTi catalyst favored selectivity to styrene, while rutile phase of TiO_2 inhibited ethylbenzene dehydrogenation ( activity.)
TiO2锐钛矿型晶相有利于苯乙烯选择性的提高，而金红石晶相则不利于催化剂的脱氢反应。 - It was shown that the catalytic activity and hydrogen storage property were related to NiCe alloy surface of the catalyst and the selectivity was related to the particular preparation methods.
研究结果表明，纳米镍铈催化剂的催化活性和储氢性能与催化剂表面的镍铈合金有关，负载性纳米镍铈催化剂的优良选择性与其特殊的制备方法有关。 - At present, the existing catalyst have low selectivity, and have some issues, such as producing hydrocarbons as by-product.
目前，国内现有的催化剂存在选择性低和有烃类副产等诸多问题。 - The conglomeration of boron on the catalyst decreased the selectivity of caprolactam and finally led to catalyst deactivation.
硼在分子筛中积聚会降低己内酰胺的选择性并容易导致催化剂失活。 - The catalyst activity and selectivity were evaluated in a fixed-bed reactor under typical hydrocarbon synthesis conditions.
在固定床反应器上考察催化剂的费一托合成反应活性和产物选择性。 - A novel catalyst with high selectivity for sulfur reduction in FCC and a new desulfurization adsorbent with high adsorption capacity were developed.
基于催化裂化脱硫技术和吸附脱硫技术，分别开发出具有高选择性的新型脱硫催化剂和高吸附容量的新型脱硫吸附剂。 - The results showed that the resin A catalyst had good selectivity and the smashing had little impact on its catalytical performance.
实验结果表明，树脂A催化剂经粉碎后对其催化性能影响不大，催化剂的选择好。 - When the crystal is formed, the catalyst activity and selectivity to DPO is decreased.
当TiO2和MoO3以晶相存在时，催化剂活性下降，DPO选择性也降低。 - Due to the preparation methods and the preparation conditions, and chemical composition of the same catalyst, have different catalytic performance, causing catalyst activity and selectivity of biggish difference.
由于制备方法和制备条件不同时，化学组成相同的催化剂，具有不同的催化性能，从而导致催化剂的活性和选择性存在较大的差异。