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   特征吸收峰 在 燃料化工 分类中 的翻译结果: 查询用时:1.242秒
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特征吸收峰    
相关语句
  characteristic absorption peak
    The characteristic absorption peak of α/β is about 3 and the nickel porphyrins is chiefly ETIO homologue.
    镍卟啉的特征吸收峰α/β约为3,主要是初卟啉(ETIO)。
短句来源
  characteristic absorption peak
    The characteristic absorption peak of α/β is about 3 and the nickel porphyrins is chiefly ETIO homologue.
    镍卟啉的特征吸收峰α/β约为3,主要是初卟啉(ETIO)。
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  characteristic absorption peaks
Spectrophotometric tracings of deoxycholate-solubilized matrix vesicles showed no characteristic absorption peaks or maxima belonging to any of the cytochrome complex components.
      
In contrast to common inorganic pigments, like Fe2O3, these pigments exhibit well-structured characteristic absorption peaks which allow their recognition.
      
IR studies of these glasses show characteristic absorption peaks corresponding phosphate and vanadium vibrations in the network.
      
Initially, both films lost about 36% weight within 96 h, which also correlated well with the loss in the characteristic absorption peaks in the region of the infrared spectrum typical of biopolymers.
      
Complete disappearance of the characteristic absorption peaks ofpyridinewas found and no new peaks were produced.
      
  characteristic absorption peaks
Spectrophotometric tracings of deoxycholate-solubilized matrix vesicles showed no characteristic absorption peaks or maxima belonging to any of the cytochrome complex components.
      
In contrast to common inorganic pigments, like Fe2O3, these pigments exhibit well-structured characteristic absorption peaks which allow their recognition.
      
IR studies of these glasses show characteristic absorption peaks corresponding phosphate and vanadium vibrations in the network.
      
Initially, both films lost about 36% weight within 96 h, which also correlated well with the loss in the characteristic absorption peaks in the region of the infrared spectrum typical of biopolymers.
      
Complete disappearance of the characteristic absorption peaks ofpyridinewas found and no new peaks were produced.
      


The Fe-and V-Ti-silicalites molecular sieves with ultralarge pore MCM-41 structure have been synthesized.Characterizations by framework IR spectra together with XRD, ESR, ̄(29)Si MAS NMR, DRS and chemical analysis data have demonstrated that iron atom are incorporated into the Fe-silicate framework,and vanadium and titanium atoms are simultaneously incorporated into the V-Ti-silicalite framework.

水热法合成了具有超大孔MCM-41分子筛结构的含Pe和V-Ti分子筛,通过XRD、骨架IR、ESR、 ̄(29)SiMASNMR、紫外漫反射等测试表征证实,Fe原子在FeMCM-41分子筛骨架上,V和Ti同时进入V-TiMCM-41分子筛骨架。FeMCM-41的骨架红外谱除Fe分子筛的特征吸收峰660cm ̄(-1)外,还显示960cm ̄(-1)峰,ESR谱出现高对称八面体环境Fe(Ⅲ)信号(g=2.0)和扭曲四面体环境Fe(Ⅲ)信号(g=4.2),而V-TiMCM-41的骨架红外960cm ̄(-1)峰强度分别随分子筛中钛或钒的含量线性增强。约在g=1.98处出现的超精细结构ESR信号表明V以分散的不流动的V ̄(4+)形式存在,化学分析结果表明骨架上Ti和V原子相互间不排斥。

The interactions between wax, resin or asphaltene samples of Daqing,Jianghan and Jidong crudes and pour point depressant/viscosity reducer (D-R) are studied in detail by infrared spectrometric and X-ray diffractometric investigations.The D-Rs used are EVA, WVA, EM (EVA+MVA) and EMS (EM+surfactant).It is shown that the peak area ratios of infrared adsorption A_(719)/A_(729)and A_(1368)/A_(1378) are increased remarkably after the wax samplea having been treated by every D-R and thus the cocrystalization of...

The interactions between wax, resin or asphaltene samples of Daqing,Jianghan and Jidong crudes and pour point depressant/viscosity reducer (D-R) are studied in detail by infrared spectrometric and X-ray diffractometric investigations.The D-Rs used are EVA, WVA, EM (EVA+MVA) and EMS (EM+surfactant).It is shown that the peak area ratios of infrared adsorption A_(719)/A_(729)and A_(1368)/A_(1378) are increased remarkably after the wax samplea having been treated by every D-R and thus the cocrystalization of paraffin and D-R molecules might occur and explain the pour point depression of the crudes treated. For the resin and asphaltene samples treated by D-Rs,the broad peak between 4000 and 3000 cm ̄(-1) is moved to lower wavenumber. the peak area ratio A_(1373)/(A_(748)+A_(810)+A_(871))increased remarkably and the X-ray diffraction peaks at 4. 4° and 18. 46° become broader and more dispersive.On the basis of these evidences it can be inferred that the order of aggregation of the plate-like reein and asphaltent molecules is lowered and the plate-on-plate aggregates become random packed ones.A model of interaction between resin/asphaltene and viscosity reducer is suggested.

详细研究了从大庆、江汉、冀东原油分离出的石蜡、胶质、沥青质用降凝降粘剂(EVA、MVA、EM、EMS)处理后红外特征吸收峰和X射线衍射峰的变化。由红外数据证实,降凝剂分子与石蜡分子发生共晶是原油降凝作用的主要机理。由红外和X射线衍射数据得出结论:降粘剂破坏胶质、沥青质分子平面重叠的聚集体,使聚集结构变疏松,聚集有序性降低,是原油降粘作用机理。提出了降粘作用分子模型。

In this paper the difference between the resin and asphaltene separated from Kenxi crude oil before treatment and after treatment is investigated by infrared absorption spectrum and transmission electron microscope. The interactions between the resin, asphaltene and the viscosity reducer are studied in detail by infrared spectrometric and transmission electron microscope. On the basis of these results it can be infiltrated into plate_like resin and asphaltene molecules by formulated hydrogen bond, infiltration...

In this paper the difference between the resin and asphaltene separated from Kenxi crude oil before treatment and after treatment is investigated by infrared absorption spectrum and transmission electron microscope. The interactions between the resin, asphaltene and the viscosity reducer are studied in detail by infrared spectrometric and transmission electron microscope. On the basis of these results it can be infiltrated into plate_like resin and asphaltene molecules by formulated hydrogen bond, infiltration and dispersion, so that the order of aggregations of the plate_like resin and asphaltene molecules is lowered and the plate_on_plate aggregations become randomly packed ones.

详细研究了胜利油田垦西特稠油中的胶质、沥青质用降粘剂处理前后的红外特征吸收峰和透射电镜照片的变化.由红外光谱数据和透射电镜分析可知,降粘剂分子借助强的形成氢键的能力和渗透、分散作用进入胶质和沥青质片状分子之间,破坏了胶质、沥青质分子平面重叠的聚集体,使聚集结构变得疏松,表明聚集有序性降低是稠油降粘的主要机理.

 
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