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continuum; desorption and diffusion; Darcy flow; multiple finite conductivity fractures; pressure; blasingame type curves......
5 铸态及快淬态(Mg24Ni10Cu2)100-xLax (x=0, 5, 10, 15, 20)合金的放氢动力学曲线 Fig. 5 Hydrogen desorption kinetic curves of as-cast and spun (Mg24Ni10Cu2)100-xLax (x=0, 5, 10, 15, 20) alloys 图5所示为铸态及快淬态... 铸态及30 m/s快淬态合金的放氢激活能随La含量的变化 Fig. 8 Evolution of the hydrogen desorption activation energy of as-cast and spun (30 m/s) (Mg24Ni10Cu2)100-xLax (x=0, 5, 10, 15, 20) alloys with La content 3......
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Hydrogen desorption kinetics mechanism of Mg-Ni hydride under isothermal and non-isothermal conditions Chao-yi CHEN1, Hui-lin CHEN2, Ya-qin MA2, Jing LIU2 1. College of Materials and Metallurgy... can reach the best performance. The similar tendency was observed under the non-isothermal condition and the reason was discussed. Key words: Mg-Ni hydride; hydrogen desorption kinetics; model......
investigated. Adsorption isotherm, separation and desorption of the SIR, and selectivity of SIR were also explored. The results show that Cyphos IL 104 exists in the inner XAD-7 resin, and the optimum pH value range of the SIR for Cr(VI) extraction is 0 to 2. When NaOH used as desorption solution, the Cr(VI) can be effectively desorbed from the SIR. Key words: solid-liquid extraction; Cyphos IL......
changes of TiVCrFe solid solution alloys during desorption process HUANG Zhuo1, F. CUEVAS2, LIU Xiao-peng1, JIANG Li-jun1, WANG Shu-mao1, M. LATROCHE2, DU Jun1 (1. Institute of Energy Materials and Technology, General Research Institute for Nonferrous Metals, Beijing 100088, China; 2. Chimie Métallurgique des Terres Rares-ICMPE-UMR7182-CNRS, France) Abstract: The desorption characteristics......
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)可见,大量纳米Mg2Ni相均匀分布于基体内,Mg2Ni相的颗粒尺寸小于NdH3的. 图5 活化合金等温吸放氢曲线 Fig. 5 Hydrogen absorption (a) and desorption (b) kinetics curves at 300 ℃ of as-activated alloys 图6 活化合金放氢后样品的明场像,暗场像及相应SAED图 Fig. 6 BF and DF images of as-activated Mg-15Nd alloy after desorption and dehydrogenated Mg-10Nd5Ni alloy (Corresponding SAED patterns are also given) 2.3 高压活化细化合金 对镁基储氢材料而言,基体Mg和催化相越......
equation, the adsorbance is 108.5 mg/g. The sulfate desorption efficiency is about 95% and the accumulative adsorbance is up to 487.95 mg/g in 5 cycles. Key words: poly(m-phenylenediamine); sulfate ions; adsorption; adsorption rate; oxidation state; desorption efficiency 1 Introduction Polyaniline (PANI) and its derivatives, as conducting polymers, have attracted considerable interest mainly......
煤层气含量快速测定方法 庞湘伟1 (1.煤炭科学研究总院西安研究院,陕西,西安,710054) 摘要:煤和煤层气地质勘探需要在取到钻孔煤心后的很短时间内获得气含量测值,而现行的煤层气含量测定方法难以满足此要求.基于自然解吸法原理和方法,以自然解吸法的测定结果为基准,在保证解吸量,气组成及其含量基本不变的前提下,通过连续观测,适当提高解吸温度等途径,合理,有效地加速解吸.以快速测定法与自然解吸法的对比试验结果为依据,建立了煤层气含量快速测定方法.此方法将煤层气含量测定周期缩短为几h~几d,可以满足煤和煤层气勘探的需求. 关键词:煤层气含量; 连续观测; 加温解吸; 快速测定; CBM content; continuous measurement; desorption by raising temperature; rapid determination; [全文内容正在添加......
