催化剂寿命,catalyst lifetime
1)catalyst lifetime催化剂寿命
英文短句/例句
1.Analysis of factors influenced on life time of synthesis catalyst for methanol影响合成甲醇的催化剂寿命因素分析
2.In supercritical reaction, coke deposition can be reduced by supercritical fluid and life of catalyst is prolonged.在超临界条件下，超临界流体能够抑制催化剂积炭，延长催化剂寿命。
3.Discussion on extending service life of SCR De-NO_x catalyst延长SCR脱硝催化剂使用寿命的措施探讨
4.Studying the Service Life of the Low-changing catalyst and the Measure of Length Its Life Span探讨和延长低变催化剂的使用寿命及措施
5.Prolonging Operation Life of Synthetic Methanol Catalyst to Decrease Cost of Methanol Production延长甲醇合成催化剂使用寿命降低甲醇生产成本
6.Analysis of stress and life of rotor disk of FCC flue gas expander催化裂化装置烟气轮机轮盘应力与寿命分析
7.The Chemical Stability and Store Age of the New Modified Double-base Propellant新型改性双基推进剂化学安定性与贮存寿命
8.VARIATION OF LUNG DOSE WITH AGE OF RABBITS BY INHALATION OF SHORT-LIVED RADON DAUGHTERS吸入短寿命氡子体家兔肺剂量随日龄的变化
9.Prediction for Service Life of Aeronautical Rubbers and Sealant by Computer Technique计算机辅助航空橡胶和密封剂老化寿命预测
10.Study on Thermal Aging Properties and Storage Life Prediction of N-15B Propellant;N-15B推进剂热老化特性与贮存寿命预估研究
11.Effect of Components and Structure of Hydrotalcites on the Catalytic Activity and Life Time in Transesterification;水滑石组成和结构对其酯交换反应催化活性及寿命的影响
12.The absorbed dose to lung tissue as a function of age of rabbitsby Inhalation of short-lived radon daughters is described in this paper.本文介绍吸入短寿命氡子体的家兔肺组织吸收剂量随日龄的变化。
13.An Evaluation of the Effect of α-Linolenic Acid and Its Anti-oxidation Compound on Anti-oxidation and Life Prolonging;α-亚麻酸及其复合剂抗氧化及延长寿命作用的评价
14.The Aging Property and Life Prediction of NEPE Propellant under Constant Strain定应变作用下NEPE推进剂老化特性及寿命预估研究
15.anticatalyser, anticatalyzer, anticatalyst反催化剂,抗催化剂（双氧水稳定剂）
16.catalyst regeneratio催化剂再生[作用]
17.cobalt-iron-bismuth-molybdenum catalyst钴-铁-铋-钼催化剂
18."catalytic:Of, involving, or acting as a catalyst."催化剂的:催化剂的、有关催化剂的或起催化剂作用的。
相关短句/例句
life test of catalyst催化剂寿命试验
3)oxidation lifetime氧化寿命
1.The Ozawa"s and Kissinger"s equations were employed for the kinetic parameters of thermal oxidation reaction of edible peanut oil, and it"soxidation lifetime were also calculated by using Ozawa"s equation.利用差示扫描量热法(DSC)测定了四种食用花生油的热氧化稳定性,用Ozawa法和Kissinger法计算了四种食用花生油热氧化反应的动力学参数,推算了不同温度下的氧化寿命。
4)aging life老化寿命
1.Research on the prediction ofaging life of cables caused by heat;电缆热老化寿命的预测研究
2.Prediction ofaging life for rubber vibration isolator橡胶隔振器老化寿命的预测
3.After hot andaging life study of the cable insulation material has been conducted through hot analytical method,a calculation formula of the cable insulation material s hot andaging life has been derived.利用热分析技术,对电缆绝缘材料的热老化寿命进行研究,得到电缆绝缘材料的热老化寿命的计算公式。
5)carbonization life碳化寿命
1.The stochastic analysis oncarbonization life of reinforced concrete structure;在役钢筋混凝土结构模糊碳化寿命的随机分析
2.Probabilistic model analysis ofcarbonization life for structure;混凝土结构碳化寿命的概率模型研究
6)poled lifetime极化寿命
1.The process of poling decay with time for poled polymer film waveguides was studied, and an integrated optical method to characterize the order parameter and thepoled lifetime of the film waveguides was presented in this paper.研究了极化聚合物薄膜波导的退极化过程，提出了表征极化聚合物薄膜取向有序度和极化寿命的集成光学方法。
延伸阅读
催化剂寿命指催化剂的有效使用期限，是催化剂的重要性质之一。催化剂在使用过程中，效率会逐渐下降，影响催化过程的进行。例如因催化活性或催化剂选择性下降，以及因催化剂粉碎而引?鸫膊阊沽翟黾拥龋贾律痰木眯б娼档停踔廖薹ㄕＴ诵小?为了使过程的经济效益不低于额定值，必须更换催化剂。引起催化剂效率衰减而缩短其寿命的原因很多，主要有：原料中杂质的毒化作用（见催化剂中毒）；高温时的热作用使催化剂中活性组分的晶粒增大，从而导致比表面积减少（图1），或者引起催化剂变质；反应原料中的尘埃或反应过程中生成的碳沉积物覆盖了催化剂表面（图2，黑色颗粒为镍，丝状物为碳沉积物）；催化剂中的有效成分在反应过程中流失；强烈的热冲击或压力起伏使催化剂颗粒破碎；反应物流体的冲刷使催化剂粉化吹失等。催化剂的寿命不仅决定于制造厂家所提出的正常操作条件范围内保证使用期，也和用户实际的作业条件和使用方法有关。在化工生产中，不仅要考虑催化剂的费用，而且要考虑因更换催化剂停工所带来的损失,对于上述影响寿命的因素甚为繁感的催化剂,还要考虑其使用方法，为此常常需要增加工业装备的投资，保证免遭意外事故。有些催化剂中毒后可以再生，但多次再生后，出现了不可恢复的变化，致使催化过程的效率低于规定的指标，寿命遂即终止（见催化剂再生）。
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