Deactivation相关论文
Selective catalytic reduction (SCR) with urea catalyzed by Cu-SAPO-34 is an effective method to eliminate NOx from diese......
The effects of reduction procedure, reaction temperature and composition of feed gas on the activity of a CuO-ZnO-Al2O3 ......
Surface chemical characterization of deactivated low-level mercury catalysts for acetylene hydrochlo
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Improvement of a Real Gas-Sensor for the Origin of Methane Selectivity Degradation byμ-XAFS Investig
We have directly investigated the chemical state of the Pd species in a realμ-gas sensor device by examining theμ-fluo......
Co-based catalysts are often utilized due to their high Fischer-Tropsch synthesis (FT) activity,C+5 hydrocarbon selectiv......
Growth of Aligned Carbon Nanotubes on Large Scale by Methane Decomposition with Deactivation Inhibit
The effects of additives containing iron or nickel during chemical vapor deposition (CVD) on the growth of carbon nanotu......
A mathematical model of COS hydrolysis on Al2O3, with fouling of catalyst, has been developed. Kinetic studies were carr......
Investigation on the deactivation cause of lead-zinc double oxide for the synthesis of diphenyl carb
The deactivation cause of lead-zinc double oxide for synthesis of diphenyl carbonate (DPC) by transesterification of dim......
Thermax 700 thermo gravimetric analysis(TGA)instrument is introduced for the investigation of the reaction and deactivat......
The promotion effect of CO in methane dehydroaromatization was investigated using ~(13)CO probe molecules.By altative in......
Comparing the deactivation behaviour of Co/CNT and Co/γ-Al2O3 nano catalysts in Fischer-Tropsch synt
An extensive study of Fischer-Tropsch (FT) synthesis on cobalt nano particles supported on γ-alumina and carbon nanotub......
This study focused on the influences of a variety of reaction parameters and guest molecules such as H2O and C3H8 on the......
The deactivation of nickel catalysts used in Arak and Razi petrochemical complexes followed by catalyst regeneration was......
Functional brain imaging studies commonly use either resting or passive task states as their control conditions, and typ......
Investigation on the deactivation cause of lead-zinc double oxide for the synthesis of diphenyl carb
The deactivation cause of lead-zinc double oxide for synthesis of diphenyl carbonate (DPC) by transesterification of dim......
在固定床反应器中进行Zn/ZSM-5分子筛催化甲醇转化制芳烃反应的积炭失活实验,采用X射线衍射,傅里叶变换红外光谱,N2吸附-脱附,氨气......
The promotion effect of CO in methane dehydroaromatization was investigated using ~(13)CO probe molecules.By alternative......
The deactivation of nickel catalysts used in Arak and Razi petrochemical complexes followed by catalyst regeneration was......
Perovskite oxide LaMnO3 was prepared by sol-gel method and the nanosize Au/LaMnO3 catalyst was prepared by deposition- p......
从微观角度分析焦炭沉积与固体粒子凝聚间的相似性,提出一种催化剂积炭失活的微观模型,并用Monte-Carlo方法模拟计算.结果表明,焦......
The nickel-based catalyst used in partial oxidation of methane(POM)to syngas emerged as the most practical one because o......
Deactivation has been encountered frequently in functional brain imaging researches. However,the deactivations during th......
采用200 mL加氢评价装置对一种中油型加氢裂化催化剂和其在工业装置运转4年后的再生后催化剂进行对比评价.结果表明,失活催化剂经......
The effects of reduction procedure, reaction temperature and composition of feed gas on the activity of a CuO-ZnO-Al2O3 ......
ZSM-5 zeolite catalyst modified by a trace of metal cations shows high activity and high selectivity for the reaction of......
采用改性沉积-沉淀法制备了系列低温水煤气变换Au/Fe2O3催化剂,发现经300℃焙烧的样品具有较好的催化活性和稳定性.并运用N2物理吸......
Comparing the deactivation behaviour of Co/CNT and Co/γ-Al2O3 nano catalysts in Fischer-Tropsch synt
An extensive study of Fischer-Tropsch (FT) synthesis on cobalt nano particles supported on γ-alumina and carbon nanotub......
采用X射线荧光光谱仪和扫描电子显微镜-能谱分析(SEM-EDS)测定了工业加氢裂化装置的失活催化剂以及再生催化剂的杂质元素含量及其......
采用原位合成法合成了不同硅铝原子比(Si/Al=50、40、30、20、10)的Al-FDU-12介孔材料,进一步浸渍镍钼活性金属制备了催化剂。通过......
针对MTBE装置运行现状进行综合分析,确定了催化剂失活的主要原因是催化液化气中携带的胺碱类组分,相应对延长催化剂使用寿命提出了......
针对催化剂使用中积炭失活的一般性特点，借鉴库存集成电路长期稳定性预测研究结果，对现有的催化剂失活反应动力学方程进行了修正，并以......
对洛阳石化PTA装置产品中4-CBA异常波动事件进行深入分析。结果表明，4-CBA异常波动是氧化单元TA第3结晶器冷凝器列管泄漏和尾气干燥......
本文总结了关于流化催化裂化（ＦＣＣ）催化剂上镍沉积方式、形态和镍沉积对催化裂化反应影响的研究成果。分析了镍中毒引起催化剂失活的原因......
测定了10个不同品种龙眼果肉中的多酚氧化酶活性。结果表明：华路广眼的多酚氧化酶活力最强，为25440U／（g·min），而罗伞木最弱，为9120U／（g......
研究了在V2O5，催化剂上，在常压、反应温度375℃，原料甲醇与乙醇摩尔比为3：1，体积空速为2h^-1条件下一步催化合成异丁醛。考察了催化剂的......
采用电子能谱仪、X光衍射仪、吸附仪等物化仪器和化学分析法，对MK101甲醇催化剂提前失活进行实验研究。结果表明：杂质的存在是影响催......
南充炼油化工总厂轻汽油醚化装置醚化催化剂和异构化催化剂超过使用寿命后均出现了床层压降增大和转化率降低等问题，通过分析，找到了......
洋刀豆蛋白是一种具有较高营养价值的植物蛋白质，但是其中含有的一些抗营养因子，如血球凝集素（Concanavalin A, 简称ConA)，胰蛋白酶抑......
以绿豆芽和苹果为原料,研制绿豆芽苹果汁复合型果蔬饮料,着重对杀青时间、饮料配方、杀菌条件等进行了研究,以豆芽苹果汁液量、蔗......
在气固连续固定床反应器上对不同温度制备的Pd/C催化剂于145℃下进行了加氢脱氯寿命实验.结果表明,随着催化剂制备温度的升高,催化......
针对中石油吉林化学股份公司炼油厂加氢裂化装置在生产中遇到的加氢裂化催化剂失活问题, 分析其失活原因, 并介绍了在生产过程中 "......
自20世纪60年代ICI公司成功推出合成甲醇铜基催化剂以来,甲醇工业得到迅速发展.然而铜基催化剂仍存在抗毒性差、耐热及机械强度差......
通过对新旧催化剂的X射线荧光(XRF)、X射线衍射(XRD)及电子扫描显微镜(SEM)分析,探讨了糠醛液相加氢生产糠醇催化剂的失活原因.结......
概述了生物质气一步法合成二甲醚双功能催化剂的热失活、中毒失活的原因及其解决方案.提出了载体是二甲醚合成催化剂需要突破的重......
考察了TiO2光催化剂降解亚甲基蓝时,pH值、TiO2预处理、制备条件及反应操作方式等对光催化剂稳定性的影响,对以玻璃弹簧为载体,采......
用双功能混合催化剂在三相淤浆床反应器中进行合成气直接合成二甲醚，考察双功能混合催化剂在三相床中的稳定性和失活现象。探讨了合......
采用动力学方法研究了MnO2颗粒物对TiO2光催化降解苯胺活性的影响，对比考察了光催化降解过程中苯胺溶液的UV吸收光谱的变化，并用HPLC......
研究了以异丙苯过氧化氢为氧化剂选择氧化丙烯制环氧丙烷的Ti/HMS催化剂的失活原因.采用XRD（X射线衍射）,FT-IR（傅里叶变换红外光谱）,UV......
以苯甲酸作为模型污染物,采用强制中毒的方法研究了TiO2在悬浮光催化氧化体系中的中毒过程,并通过对中毒TiO2进行IR、SPS及XPS表征......
最近研究发现,小麦胚中的凝集素(WGA)是一种抗营养物质,并且有可能是人体某些免疫性疾病的诱因之一.通过对干热、湿热、酸碱、加压......
