床层

Q随着原料气流速和床层高度的增加而增大。

The zeolite adsorbents can produce purified gas when the bed height was larger than LUB .

通过对萃取固定床层进行质量衡算建立了超临界CO2流体萃取动力学模型。

A kinetic model for supercritical carbon dioxide extraction was developed by mass conservation calculation of the extraction fixed bed .

V型喷动流化床床层压力的研究

Study of pressure of V-type fluidized-bed

PAN基活性炭纤维床层上有机溶剂蒸汽的穿透特性

Breakthrough characteristic of organic solvent vapor on PAN based activated carbon fiber beds

以及根据床层温度（或者时间）自动进行入塔烟气换向等方面用微机监控系统进行综合控制，探讨了DCS控制系统在制酸工艺中的应用。

It also discusses the application of DCS control system in the manufacturing .

PSA吸附罐吸附剂床层高度的不停车检测

The On Line Detection of the Bed Layer Altitude for PSA Sorbent

CO变换反应催化剂床层排热一般采用多段换热式，即变换炉段间换热。

Generally , the multi-zone heat-exchanging mode , heat-exchanging between zones of converter , is adopted for heat extraction of catalyst bed in CO conversion reaction .

PET固相缩聚过程涉及反应固体颗粒和反应器床层两个空间尺度的传质，是一个复杂的多维多相对象。

PET solid-state polycondensation process involves spatial mass transfer of both solid reaction particles and reactor bed , which is a multi-dimensional and multi-phase objective .

结果表明，粘滞流公式不适用于亚微米粉末，用粘滞流公式计算的SK对于SV的误差随粉末粒度和床层孔度的减小而增大。

The error between S_k calculated using the viscous flow formula and S_v increased with the decrease of the particle size of powder and with the decrease of the bed porosity .

ml-1柱体积，甲醇再生2倍床层体积。

The silica gel column might be regenerated by 2 bed volumes of methanol .

达到相同的CH4转化率时，微波活化方式下催化剂床层温度远比常规加热低得多，且产物中CO选择性明显高于后者；镍负载量对催化活性无明显的影响。

Compared with a conventional heating mode , the temperature of the catalytic bed is much lower and there is a higher selectivity of CO with microwave irradiation .

适当增加床层高度、低温操作都有利于对CO2的吸附，但增大入口气流速不利于分子筛对CO2的吸附。

Appropriately increasing bed thickness and low temperature operation are both conducive to the absorption of CO2 . But the increased flow rate is not conducive to the absorption of CO2 .

在此基础上，对模型的操作条件进行优化：依次分析入口温度、催化剂活性、入口组成和入口压力对床层温度分布、CO转化率的影响。

On this basis , optimize the operating conditions of the model : followed by analysis the bed temperature distribution , CO conversion impacted by inlet temperature , catalyst activity , inlet components and inlet pressure .

论文研究结果表明：粗重颗粒在床层中的压力梯度以及浓度的轴向和径向分布和其随操作条件的变化规律与目前关于FCC颗粒的实验结果有明显的差异。

The results show that the pressure gradients and radial distribution profiles of solids holdups and the effects of operation conditions on them are quite different from those of FCC .

静床层高度位于锥形喷动室内时，密度之比对最小喷动时的雷诺数的影响较大；高频小探头内镜超声和多层螺旋CT在胃癌术前T分期中的对比研究

And the minimal spouted Reynold was greatly affected by the ratio of densities when static bed height located in the spouted cells . High Frequency Endoscopic Ultrasound Mini Probe Versus Multislice Spiral Computed Tomography for Preoperative T-Staging of Gastric Cancer

利用13X型分子筛得到优化的工艺条件：吸附床层温度：200～230℃；

The optimized adsorption operation conditions for molecular sieve 13X : Temperature of the adsorption bed is 200 to 230 ℃;

实验考察了表观气速Ug、表观浆液流速UsL、固含率εs等因素对气含率εg和床层压降△P的影响以及三相携带床的操作特性。

The ef-fects of gas velocity Ug , slurry velocity UsL and solid content es on gas hold-up and pressuredrop P as well as the operating characteristic of three-phase entrained bed are tested .

相同流化数时，B类颗粒的压力波动标准偏差受床层温度变化影响较小，而D类粒子随床层温度升高压力波动标准偏差减小。

Under the same fluidization number the influence exerted by a change in bed temperature on pressure fluctuation standard deviation of B particles is insignificant , while for particles of D category the pressure fluctuation standard deviation will decrease with a rise in bed temperature .

将两个上流式滤柱串联，其中填充以3～4mm的聚苯乙烯发泡粒子，床层高度为2m。

Two upflow filter beds were cascaded and were packed with polystyrene foaming pellet with nominal diameter of 3-4 mm , the bed height was 2 m.

在吸附过程中，随着CO含量的增加，吸附质穿透时间点发生提前，其饱和吸附量也越来越小，表明吸附质在床层中的停留时间对吸附剂的影响很大。

In the adsorption process , with the CO content increasing , adsorbate penetration occurred earlier , the saturated adsorptive capacity of CO is also getting smaller , indicating the residence time of adsorbate in the fixed bed has a great impact .

基于各子层内热量衡算方程，通过Matlab编程，模拟计算得到了乳化相温度、气泡相温度、表观床层温度随高度的变化曲线，表观床层温度与工业数据能够较好的吻合。

Based on the heat balance equation of each layer , we obtained emulsion phase temperature , bubble phase temperature and superficial bed temperature varying with height through Matlab . The simulation results of superficial bed temperature matched the industrial data well .

模拟结果与前人的实验研究和理论分析相吻合，表明多相流CFD模拟可以很好地预测液固流化床的床层动态行为。

Simulated results coincide with previously experimental research and theoretical analysis , which shows that the commercial Computational Fluid Dynamics ( CFD ) can be adept at predicting the dynamic behavior of the liquid-solid fluidized bed .

但是，中性pH条件下生物质（细胞或细胞碎片）一般带负电荷，很容易吸附到带正电荷的阴离子交换介质表面，降低吸附容量，破坏床层的稳定性。

However , it was found that during ion exchange EBA the biomass ( cells or cell debris ) in the feedstock might adhere to the adsorbent , especially to the anion exchanger , which resulted in bad bed stability and low adsorption capacity .

结果表明，无粉尘沉积时，床层压降可以用Ergun方程计算。

When the gas is free from dust , the pressure drop can be described by Erguns equation .

结果表明，微波辐照下的反应有如下特点：在达到相同的CH4转化率时，微波活化方式下催化剂床层温度远比常规加热低得多，且产物中H2和CO选择性明显高于后者；

Compared with a conventional heating mode for same conversion of CH 4 , the temperature of the catalytic bed is much lower and the selectivity of CO and H 2 is also obviously higher by microwave irradiation .

利用一种振动流化床装置实现了对Geldart分类中C类粉体的正常流化，研究了振动参数对床层空隙率的影响。

Particles of the group c in Geldart 's classification are fluidized fairly well in a vibro - fluidized bed . The effect of vibrational parameter on the bed voidage has been mainly discussed in this paper .

本文介绍了V型内循环流化床中颗粒动力特性的试验研究结果，包括颗粒内循环的运动轨迹，床层内压力分布特性及流态化速度等。

This paper presents the results of an experimental study on the dynamic characteristics of particles in a V type inner circulating fluidized bed , including the kinematic trajectory of the particle inner circulation , the distribution feature of the bed layer inner pressure and fluidization speed , etc.

结果表明，综合考虑酒糟营养成分和经济效益，床层厚度小于40mm，采用直接干燥方法；

The results indicated that combining the nutrient and economic benefits , direct drying method was adopted while the layer depth was less than 40 mm ;

通过观察投入使用后的情况，发现该工艺废水处理效果较好，但UBF反应器内出现了一些床层静置状态。

According to the operating condition , it is discovered that this wastewater treatment process works quite well except for appearance of some immovable region in UBF reactor .

其中UOP公司开发的两段加氢技术要解决的技术难点主要是强放热反应会引起催化剂床层温度超标；

The main technical challenge UOP ′ s two-stage hydrogenation technology needs to resolve is that strong exothermic reaction will result in too high temperatures on the catalyst bed .