1) CH4 balance method
CH4平衡法
1.
Based on the error analysis of general yield formula,a new method that calculate the yield of light hydrocarbon with CH4 balance method is presented in this paper.
通过对常规收率公式的误差分析,提出了采用CH4平衡法计算轻烃收率的新方法。
2) Stratospheric CH_4
平流层CH4
1.
Distribution Features and Seasonal Variations of Stratospheric CH_4 over China;
结果表明,中国平流层CH4混合比随着高度逐渐减小,在经向上有较大差异,总是南边大于北边,而各个纬度带上的分布则较均匀。
3) CH_4
CH4
1.
Batch incubation experiments in aid of anaerobic incubation flask were conducted to study the anaerobic degradation and volatilization of hexachlorobenzene(HCB),the change of pH in soil,the emission of CH_4 and CO_2,and the volatilization of HCB in the Hydragric Acrisol and Gleyi-Stagnic Anthrosol added with acetic acid,glucose and citric acid.
结果表明,8周内红壤性水稻土中HCB减少了约20%~44%,加入乙酸抑制HCB的降解,表明低pH条件不利于脱氯反应,加入葡萄糖和柠檬酸在前期抑制后期则促进HCB的降解;乌栅土中HCB减少了约21%~23%,加入小分子有机质对其降解没有明显的效果;六氯苯降解的主要产物为五氯苯(PCB),最终检测到红壤性水稻土中PCB为23~96μg/kg,乌栅土中为64~92μg/kg;HCB的降解与CH4和CO2的释放量在统计学上没有显著的相关性;2种土壤中,外加小分子有机碳均减少了HCB的挥发作用,且红壤性水稻土中HCB的挥发比乌栅土中更强,表明土壤有机质是影响HCB挥发的重要因子。
2.
The effects of the oxides of Mg and Ce on the CO_2 reforming of CH_4 over Ni/nano-Al_2O_3 catalysts were investigated.
考察了助剂Mg、Ce修饰的纳米A l2O3负载N i催化剂对CH4、CO2重整反应制合成气的反应性能影响,采用正交实验筛选催化剂。
4) methane
[英]['mi:θeɪn] [美]['mɛθen]
CH4
1.
Coal mine gas at the ventilation outlet of coal mines can hardly be made use due to its low concentration of methane,which is usually emitted to the atmosphere and cause pollution and loss of energy.
煤矿通风口处瓦斯气的CH4浓度太低无法回收利用,只能排往大气中,既浪费能源,又污染环境。
2.
Utilizing the data of the greenhouse gases(GHGs) of atmosphere from 1991 to 2004 provided by NOAA Earth System Research Laboratory,including carbon dioxide and methane data at Korea of Tae-ahn Peninsula,Mongolia of Ulaan Uul and China of Waliguan stations,the atmospheric concentrations and their trends of GHGs in East Asia in 14 years were analyzed.
利用NOAA Earth System Research Laboratory提供的1991─2004年Tae-ahn(韩国),Ulaan Uul(蒙古)以及瓦里关(中国)的大气温室气体CO2和CH4的数据,对东亚地区大气温室气体的浓度特征及变化趋势进行研究。
3.
The diffusion of methane and carbon dioxide in a-MCMB prepared by the authors, was investigated by using the intelligent gravimetric analyzer apparatus (IGA-003, HIDEN) at 298 K and 258 K.
采用高精度的重力分析仪(IGA003,HIDEN)对天然气主要成分CH4和CO2杂质在活性炭微球材料内的扩散性质进行了研究。
5) CH 4
CH4
1.
The mechanisms of the reaction NH 2+CH 4NH 3+CH 3, NH 2+CH 4CH 3NH 2+H have been studied at B3LYP/6-311G * level of density functional theory.
在密度泛函理论 B3LYP/6 -31 1 G*水平下 ,研究了 NH2 与 CH4的反应机理 。
2.
The reaction of CH 4+MgO→Mg+CH 3OH has been studied on a singlet state potential energy curve at B3LYP/6-311+G (2d,2p) level.
在B3LYP/ 6 311+G(2d ,2p)水平上计算了MgO +CH4 →Mg +CH3 OH反应的单态势能曲线 。
3.
The separation of CH 4 /N 2 gas mixture for improve the concentration of CH 4 by pressure swing adsorption (PSA) is studied.
采用变压吸附技术进行CH4 /N2 气体混合物的分离研究 ,以提高混合气中CH4 的浓度 。
6) equilibrium method
平衡法
1.
2 K) were experimentally determined by the equilibrium method.
平衡法测定了纳他霉素在纯水(278。
2.
This paper determined the solubility of Sodium Hexafluoroantimonate at 308 K with the equilibrium method,and the concentration of Sodium Fluorine and Hydrogen Fluorine were studied to determine their influence on the solubility of Sodium Hexafluoroantimonate.
通过平衡法测定了氟锑酸钠在308 K的溶解度,考察了氟化钠、氢氟酸浓度对氟锑酸钠溶解度的影响。
3.
The solubility of quercetin in absolute ethanol was measured experimentally by equilibrium method in this paper.
本文对槲皮素在无水乙醇中的溶解度用平衡法进行了实验测定 ,槲皮素含量由HPLC方法检测 ,得到了温度范围 0℃～ 6 0℃中的溶解度数据 ,利用固液相平衡的热力学原理对实验结果进行了关联 ,由此提出了槲皮素溶解度随温度变化的经验公式 ,便于参
补充资料：氨合成平衡速率氨平衡合成率
分子式：
CAS号：
性质：又称氨合成平衡速率氨平衡合成率。在不同的催化反应条件下，氨合成反应达到一定程度的化学平衡时氨合成的反应率或合成率。在实际氨合成生产中，不可能达到平衡氨合成率，在工业上设计氨合成塔时，就必须着眼于它的运行能最大限度地接近平衡氨合成率。
CAS号：
性质：又称氨合成平衡速率氨平衡合成率。在不同的催化反应条件下，氨合成反应达到一定程度的化学平衡时氨合成的反应率或合成率。在实际氨合成生产中，不可能达到平衡氨合成率，在工业上设计氨合成塔时，就必须着眼于它的运行能最大限度地接近平衡氨合成率。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条