XRD,XPS,EXAFS,IR TPD,NH 3 TPD and pulse microreactor were used to study the differences in metal dispersion and active constituents on the supports made by mixing γ Al 2O 3 with two different US SSY zeolites,obtained by quick and slow cooling method respectively.
应用ＸＲＤ、ＸＰＳ、ＥＸＡＦＳ、ＩＲ－ＴＰＤ、ＮＨ３－ＴＰＤ和脉冲微反等多种物理和化学方法，研究了以急冷和自冷方法制备的ＵＳ－ＳＳＹ分子筛，在与γ－Ａｌ２Ｏ３制成混和载体时，两者之间的差异对金属组分在其上的分散和活性组分的形成产生的影响以及给加氢处理催化剂性能带来的变化，为制备高效催化剂提供了科学的依
XRD, 29Si, 27AI MAS NMR, the adsorption of nitrogen at low temperature,129Xe NMR, XPS, IR-TPD, NH3-TPD, the high vacuum volumetric analysis and pulse flow microreaction were used to study the difference in structure and property between the US-SSY zeolites obtained by quick and slow cooling after treating SSY zeolite with steam at high temperature.
应用X射线粉末衍射、29Si、27Al魔角旋转核磁共振、低温氮吸附、129Xe核磁共振、X射线光电子能谱、程序升温脱附和脉冲微反等多种物理、化学手段，详细考察了经高温水蒸汽处理后的超稳Y分子筛在急冷和自冷过程中产生的结构和性能差异，结果表明，冷却速率是制备分子筛必要的控制因素。
In this paper,a producing technology of the self-cooling orange beverage has been introduced,the physical cooling principle and system structure are presented,the ingredients of the self-cooling orange beverage technical process and operation key points have been analysed as well.
简要介绍了一种生产自冷式橙汁饮料的物理制冷法的制冷机理及制冷结构设计 ,并举例分析了自冷式橙汁饮料的配方、工艺流程和操作要
This article briefs the basic performance,design,new manufacturing technique and technology of self-cooling enclosed isolated phase bus new products applicable to 1 000 MW generating units,as well as the situations of its passing the inspection,measuring,testing of the relevant national quality inspection center.
介绍了适用于1 000 MW机组用自冷式离相封闭母线新产品的基本性能和设计、制造新技术、新工艺,以及通过国家有关质检中心检测、试验的情况。
Application of self-cooled crystallization process in production of chlorates;
自冷结晶法在氯酸盐生产中的应用
The heatbarrier performances,advantages and disadvantages of different heatbarrier methods adopted are studied;and the 75 kW high power isolating blast inverter based on the heat pipe and self-cooling heatbarrier patterns is designed.
针对隔爆型变频器的特点,从功率单元、参数设计角度分析了减小逆变器损耗的方法,研究了采用不同散热方式下的散热性能及优缺点,设计了基于热管自冷散热方式的75 kW大功率隔爆变频器。