顆粒催化劑 的英文怎麼說
中文拼音 [kēlìcuīhuàjì]
顆粒催化劑
英文
bead catalyst-
For measuring abrasion of catalyst particles, three basic attrition test apparatus are used.
為了測定催化劑顆粒的磨損，可使用三種基本磨損測試裝置。In this thesis, in order to reducing the amount of the pt catalyst, improving the electrocatalytic activity of the pt catalysts and utilization ratio of pt, the electrochemical codeposition method by cyclic voltammetry ( cv ) was used to prepare a series pt / moox / glassy carbon ( gc ) composite electrodes with high dispersibility. the composite electrode, pt / moox / gc, was characterized to study its composition and its electro chemical behavior by cv. using the xrd and sem techniques, the size and the dispersion degree of the catalyst particles were studied in presence or absence of moox in the catalyst
為了降低主催化劑pt的用量、提高pt的活性和利用率，本論文利用循環伏安法共沉積制備高分散的pt moo _ x催化劑顆粒，利用循環伏安電化學表徵、 xrd和sem技術研究了引入moo _ x后的催化劑即pt moo _ x顆粒的粒子大小、分散狀態；利用icp - aes定量分析pt moo _ x催化劑顆粒的組成含量；並藉助于電化學方法分別評價了pt moo _ x gc電極催化劑的對甲醇的電催化活性和穩定性、氧還原電催化活性。Study on soot combustion on ce zr catalysts
催化劑上碳顆粒物燃燒行為的研究Nanotubes have a narrow size distribution which dismeter is about 30nm with several analysis methods such as hrtem, eels, xrd, saed and so on the nanotubes " structure was characterized which can be regards as k ^ nbeon structure. according to the saed pattern, the axis of nanotubes can be determined which is along the crystal direction [ 100 ]
鈮酸鉀是一種的具有光催化功能的材料，光催化的效果與催化劑的比表面積有很大關系，納米管的一個顯著特點就是與粒狀結構的材料相比，它具有大的比表面積，從理論上講它應該比鈮酸鉀顆粒具有更好的催化效果。This kind of catalyst was very fine, with strong interaction between the support and the active component particle, and high dispersion of such particles on the surface of the support. yield of carbon nanotubes can also be improved greatly by the doping of molybdenum to catalyst
本文所採用的檸檬酸法瞬時燒爆工藝制備的催化劑，顆粒小，載體與活性組分接觸好，活性組分分散均勻，可望實現單壁納米碳管的大規模製備。Xrd tests show that we have prepared pure lanio3 and pt / c catalysts. the lanio3 powder is electrically conductive. sem examination shows that the pt / c catalyst is the powder of small granules and is uniform in morphology
測試結果表明，制得的鎳酸鑭粉體中含有氧化鑭相，粉體具有導電性；制得的pt c催化劑是純凈的pt和c相組分，粉體顆粒細小均勻。Using fcc flow - reaction mathematical model and boundary condition developed in paper ( i ) and the operational constants in commercial fcc riser, the hydrodynamics of catalysts and the distribution of concentration of catalytic cracking products, as well as the temperature of two - phase along the riser are simulated and predicted
運用已經建立的催化裂化反應的數學模型和模型邊界條件及求解方法，結合煉油廠工業提升管的實際操作參數，模擬預測了催化裂化提升管反應器內催化劑顆粒的流場特徵和原料油反應產物的濃度及氣粒兩相平均溫度的沿程分佈特徵。Simulating results reveal that hydrodynamics of catalysts in riser reactor is very complex due to the effect of injection and catalysts backmix dramatically near the nozzle, reaction products unevenly distributie along the riser height, there exists apparently temperature gap between gas - phase and solid - phase near the nozzle and the temperture of two phase is nearly equal at middle - top part
模擬結果表明，由於原料油射流的影響，提升管反應器內催化劑顆粒的流動特徵非常復雜，在噴嘴附近的催化劑顆粒存在明顯的滑落返混；裂化產物濃度沿提升管存在非均勻分佈；氣粒兩相間溫差在噴嘴附近顯著，在中上部氣粒兩相溫度幾乎相等。Simulation results show that based on the regeneration kinetics of the catalyst, properly raising the reoxidation temperature of the catalyst in the fluidized bed reactor either can obviously improve the performance of the system or can reduce the solid flux and hence the energy consumption
結果表明，使烴類選擇氧化（催化劑被還原）和催化劑氧化再生分開進行，特別是根據催化劑氧化再生動力學的要求，適當調節再生過程的溫度，既能明顯改善反應系統的性能，又可以大幅度降低催化劑固體顆粒的循環量，取得節能降耗的效果。Moox decreased catalytic agglomeration rate. all these made the pt / moox samples higher specific surface area of pt / moox microparticles in the pt / moox / gc composite electrode than pt microparticles in the pt / gc electrode
Sem 、 xrd結果顯示， moo _ x高度分散pt顆粒，催化劑顆粒粒徑更小，減少它們的附聚速度，使催化劑有相當高的表面。Low temperature plasma has been extensively investigated for catalyst preparation, including plasma chemical synthesis of ultra - fine particle catalysts, plasma regeneration or plasma treatment of catalysts, plasma - assisted deposition of catalytically active compounds on carriers and combination of plasma and catalyst in reaction system
摘要低溫等離子體技術在化學生產中的用途越來越廣泛，它在催化劑領域的應用主要表現在以下幾個方面：超細顆粒催化劑合成，催化劑再生，催化劑表面處理，活性組分沉澱到基體以及低溫等離子體系統中添加催化劑。For mobile sources, meca members include manufacturers of catalytic converters ( catalysts, substrates, mounting sleeves, and converter housings ) for all fuels ; diesel particulate filters ; oxygen, nox, and temperature sensors ; thermal management strategies ; engine / fuel management technologies ; crankcase emission control technologies ; evaporative emission controls ; enhanced combustion technologies ; plasma / corona technologies ; and components for fuel cell technology
在移動源方面，其成員主要從事下列產品或技術的生產或研發：各類燃料的催化轉化器（包括相關產品如催化劑、基質、安裝袖和轉化器殼） ；柴油顆粒過濾器；氧氣、氮氣和溫度傳感器；熱處理系統；發動機/燃料操控技術；曲軸箱排放控制技術；蒸發排放控制；強化燃燒技術；等離子體/電暈技術。Abstract : establishment of the macro dynamic mathematical models for coked zeolite catalyst coke burning regeneration was discussed from an engineering point of view. based on the modified particle - pellet model, dynamic mathematical equations for porous and nonporous catalyst coke burning regeneration were deduced, supplying a theoretical basis for computer simulation of coked zeolite catalyst regeneration
文摘:從反應工程學的角度討論了結焦沸石催化劑燒焦再生反應宏觀動力學數學模型的建立，根據已提出的修正的顆粒-粒子動態等溫物理模型，分別推導出了多孔焦炭的燃燒再生階段數學方程和無孔焦炭的燃燒再生階段數學方程，為結焦沸石催化劑再生反應過程計算機模擬提供了理論依據。Standard test method for vibrated apparent packing density of fine catalyst and catalyst carrier particles and powder
細粒催化劑和催化劑載體顆粒和粉末振動表觀填充密度的標準試驗方法Using different ways to introduce catalyst, both vertically aligned carbon nanotubes layers and randomly oriented carbon nanotubes layers were grown on silicon substrates at 700 by thermal decomposition of acetylene. the structures of different carbon nanotubes samples were investigated by scanning electron microscopy
結果表明，採用浮動催化方法制備碳納米管，由於充當誘導因子的催化劑顆粒的存在使得碳納米管在其他方向上的生長受到限制而只沿垂直於襯底的方向生長，形成碳納米管薄膜。The atomic carbon precipitating from the top of the catalysts grew upward, but the catalysts still existed in the bottom of cnts due to the strong adhesion between catalysts and substrate
以單晶硅為基體，鎳催化的cvd法生長納米碳管屬于基底生長模型。從催化劑顆粒上端析出的碳，逐漸向空間生長。Standard test method for vibratory packing density of large formed catalyst and catalyst particles
大顆粒成型催化劑和催化劑顆粒振動填充密度的標準試驗方法Standard test method for vibratory packing density of formed catalyst particles and catalyst carriers
成型催化劑顆粒和催化劑載體振動填充密度的標準試驗方法Standard test method for mechanically tapped packing density of fine catalyst particles and catalyst carrier particles
精細催化劑顆粒和催化劑載體顆粒的機械振實填充密度的標準試驗方法Standard test method for radial crush strength of extruded catalyst and catalyst carrier particles
擠壓催化劑和催化劑載體顆粒輻射抗壓強度的標準試驗方法分享友人