氣相催化作用 的英文怎麼說
中文拼音 [qìxiāngcuīhuàzuòyòng]
氣相催化作用
英文
gas phase catalysis-
The research status of the world diesel exhaust aftertreatment technology is summarized systemicallyo at the same time, the development status and problems about oxygenation catalysis converter and particulate filter are analyzed on the basis of mentioned informations, we bring up a diesel exhaust cleanse system, that adopts the technique course of catalysis conversion combining particulate collection and regeneration the system collects exhaust particulate by means of efficacious filtering material it can oxidize ho co and macromolecule solvable organic via catalyst and diesel oil additive enhanced temperature will partly oxidize collected particulate and ultimately achieve the aim of exhaust reduction, after processing system frame design and trial matching, it ' s detected that the system can surely cleanse gas exhaust and particulate in addition, gas - ejected combustion - supporting regeneration for diesel particulate filter is also researched, we have rudimentarily designed the software and hardware of the g as - ejected combustion - supporting system having processed a series of trials, we discover the rules of the system credibly working these rules demonstrate the right direction for researching gas - ejected combustion - supporting regeneration technology
本文系統地介紹了國內外柴油機排氣后處理技術的研究現狀,分析了氧化催化轉化器和微粒捕集器的發展現狀及存在的問題,以此為基礎,提出了一種柴油機排氣凈化系統,該系統採用催化轉化與微粒捕集及再生相結合的技術路線,通過過濾材料的有效過濾,將排氣中的微粒進行收集,藉助于催化劑和柴油添加劑使排氣中hc 、 co及高分子可溶性有機物氧化,產生的高溫使得收集到的微粒部分氧化,從而達到降低排放的效果。通過系統結構設計和試驗匹配,實現了對氣體排放物和微粒的凈化。同時,論文中還進行了柴油機微粒捕集器噴氣助燃再生的研究,初步設計了噴氣助燃系統,進行了控制系統軟、硬體的開發,通過正交試驗,摸索出了噴氣助燃系統可靠工作的一般規律,為噴氣助燃再生技術的開發提供了方向。In the end, cluster - analysis - based floating control historical regression method with uniform precipitation and atmospheric precipitable water as metoorological covariates could more validly evaluate efficiency of cloud seeding operations and significant level of ca - fcm method was higher than the other methods, because it adopted cluster analysis which highly improved the correlativity between rainfall distributions in the control area and target area, and used grid interpolation which enhanced exactness of calculating precipitation rainfall, and chose atmospheric precipitable water as the covariant which increased the inferential accuracy of natural rainfall on the cloud seeding operational area
最後,得到以降水量和整層大氣可降水量為協變量的ca - fcm方法,由於採用聚類分析( ca )方法,提高了對比區和影響區相關性;採用網格插值技術提高了雨量的計算準確度;引入了不受催化影響的物理協變量(整層大氣可降水量) ,提高了作業區自然降水量估計值的準確性;所以評估效果最好,顯著水平高於0 . 05 。1 lanthanide hydrides ( m = la, nd, sm, dy and yb ) can be prepared easily by the direct hydrogenation of lanthanide metals catalyzed by ticl4 in tetrahydrofunan ( thf ) under normal pressure. the rate of hydrogenation decreased with increasing atomic number of lanthanides. transmission electron micrographs showed that the resulted lanthanide hydrides were in the form of nanoparticles with an average primary particle size around 20 - 40 nm
本論文首次提出一種在溫和條件下催化合成納米尺寸的鑭系金屬氫化物的方法,介紹在常溫常壓下,鑭、釹、釤、鏑、鐿五種鑭系金屬在四氫呋喃( thf )溶劑中,催化劑作用下與氫氣直接化合形成相應的納米尺寸的鑭系金屬氫化物。Tar content in the gas was influenced by the gasification conditions, such as the gasification temperature, residence time of feedstock in the gasifier and the type of feedstock, which can help us to investigate the mechanism of tar production in gasification process. catalytic cracking of tar was performed in a downstream secondary fixed - bed cracker with dolomite, limestone and alumina brick as catalysts. by comparison, thermal cracking of tar was also performed with silica carbide
在固定床二級催化裂化反應器上,實驗了白雲石、石灰石、高鋁磚等幾種催化劑作用下的焦油催化裂化過程以及炭化硅作用下的熱裂化過程,並對裂化溫度( 650 950 ) 、氣相停留時間( 0 . 5 1s )和催化劑類型等過程參數對焦油轉化效果和熱解煤氣的影響進行了分析,對各種催化劑材料的性能進行了比較,力爭開發出可適用於工業化生物質氣化系統的焦油催化裂化技術。Abstract : in this paper, the preparation of the catalysts for the oxidation of fluorene to fluoreone is studied. the influences of the dipping time, calcining temperature, calcining time and the air quantity during the calcination are discussed
文摘:研究了用工業芴氣相氧化制取芴酮的催化劑製作條件,考察了浸漬時間、煅燒溫度、煅燒時間和煅燒空氣量對催化劑製作的影響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。Abstract : this paper describes the methods to form silver clusters in solid, liquid and gas phases ; the properties of clusters such as absorption bands, esr, redox potential, ea and ip, and their catalytic behaviours in photo - splitting water and photographic development processes
文摘:本文綜述了在固相、液相和氣相中形成銀團簇的方法,銀團簇的主要性質如吸收光譜、 esr 、氧還電位、電子親和勢與電離能,以及銀團簇在光解水和照相顯影過程中的催化作用。It was observed that the concentration of no2 in the gas emission decreased greatly during oxidation and the phase transfer catalyzer as well as ultrasonic played important role in the reaction
研究發現,氧化過程中尾氣中no2的濃度明顯減小,相轉移催化劑和超聲波輻射作用對反應有重要作用。Using nano - iron and nano - tungsten as catalyzers, we try to produce carbon nanotube or nanostring by cvd and pla. the results show that one - dimension carbon nanomaterials can be successfully obtained by cvd only based quartz module
在上述研究的基礎上,採用鐵、鎢兩種納米金屬作為催化劑,運用化學氣相沉積法和激光轟擊原位生成法嘗試合成碳納米管與納米線。In the present work, we have prepared titania thin films on different substrates from a ( nh4 ) 2tif6 aqueous solution upon addition of boric acid by liquid phase deposition ( lpd ) method under the ambient temperature
在本研究工作中,以六氟鈦酸銨和硼酸為原料,用液相沉積法( lpd )在不同的基片上制備二氧化鈦薄膜,並用液相甲基橙水溶液的降解脫色和氣相no的光解去除率評價二氧化鈦薄膜的光催化活性。Secondary air supply synthesizer secondary air supply synthesizer can lown down emission of vehicles together with catalyst. sometimes it can work separately
二合一進氣系統可與催化劑同時作用降低車輛排放污染物達到相關環保標準,在某些車輛上也可單獨使用This work introduces some of typical photocatalytic reactions, domestic and overseas development position of phocatalysis technologies, the principle of nano - tio _ 2 photocatalytic reactions, the influence of the structure and quality of nano - tio _ 2 and water vapor on photocatalytic reactions, usual preparation methods of photocatalysts such as gas phase and liquid phase methods and so on, as well as the carriers and methods of nano - tio _ 2 photocatalyst loading
本論文介紹了一些典型的光催化反應實例,光催化技術的國內外發展現狀、納米tio _ 2光催化反應的原理、 tio _ 2納米粒子的結構與性質及水蒸氣對光催化作用的影響,氣相法、液相法等常用光催化劑的制備方法,納米tio _ 2負載所用的載體及其在載體上的固定方法。In order to study these questions, we researched three topics in this paper mainly : 1. we prepared zno nanowires using chemical vapor deposition ( cvd ) method based vapor - liquid - solid ( vls ) mechanism. our object was getting arrayed and controllable growth of zno nanowires through integrating the controllable ability of vls mechanism and merits of cvd and controlling the technique conditions of preparation
針對以上存在的問題,本文主要在以下三個方面進行了初步的探索: 1 .採用基於氣-液-固( vls )生長機理的化學氣相沉積( cvd )法制備zno納米線,結合vls機理對生長過程的控製作用以及cvd方法的優點,通過對催化劑、源溫度、生長溫度和反應氣氛等工藝條件的控制,得到納米線的陣列化生長。The paper put forward an aim to deposit n - doped titanium dioxide film on glass substrate by the atmospheric pressure chemical vapor deposition ( apcvd ) method. using ticl4 and oa as precursors, titanium dioxide thin films had been deposited by apcvd method. nitrogen had also been doped in the film when n2o gas was added as the dopant
在實驗室條件下以ticl _ 4和o _ 2為先驅體,採用常壓化學氣相沉積法( apcvd )制備得到具有一定光催化性和親水性的tio _ 2薄膜,並且以n _ 2o作為摻雜劑,對薄膜進行了n的摻雜,在一定程度上提高了薄膜可見光照射下的光催化性和親水性。分享友人