1) methane oxidation
CH4氧化
1.
Samples of lessive,one of the most important soil types in the Sanjiang Plain(45°01′-48°28′N,130°13′-135°05′E,the largest fresh water wetland area in China),were incubated to investigate the effect of land-use change on methane oxidation in lessive.
白浆土在不同土地利用方式下CH4氧化潜力存在显著差异。
2.
Laboratory study on methane oxidation of forest soil revealed the vertical profiles of methane oxidation activity.
结果表明,土壤氧化CH4的能力随深度变化明显;5 - 1 5cm土层具有最大CH4氧化活性,在 40 0 μL/LCH4体积分数下,此土层干重土壤CH4最大氧化速率可达3。
3.
Methane oxidation in soil profiles of broad-leaved Korean pine mixed forest in Changbai Mountain;
结果表明 ,土壤氧化CH4的能力随深度变化明显 ;5～ 15cm土层具有最大CH4氧化活性 ,在 4 0 0ppmvCH4浓度下此土层土壤最大氧化速率可达 3。
2) CH 4 oxidation
CH4氧化
1.
The research progresses in the effects of soil temperature on atmospheric CH 4 oxidation in soils were reviewed in this paper.
当温度较低时土壤也具有一定的氧化大气CH4的能力 ,两者具有很高的相关关系 ,但是由于CH4氧化菌对大气CH4具有很强的亲和力以及大气CH4氧化所需活化能较低 ,因此土壤氧化大气CH4对温度的敏感度远低于产CH4,导致温度系数Q10 较小。
3) partial oxidation of CH_4
CH4部分氧化
4) CH4 oxidation potential
CH4氧化潜力
1.
Water regime is one of the most important factors that affect production, oxidation, and emission of CH4, but few research reports are available in the literature about effects of water regime on values and seasonal variation of CH4 production potential and CH4 oxidation potential in rice paddy soil.
结果表明:烤田前,两处理土壤CH4产生潜力和氧化潜力的大小及其季节变化趋势一致,使得两处理CH4排放通量的大小及其季节变化趋势一致;烤田后,持续淹水处理土壤CH4产生潜力明显大于间隙灌溉处理,而CH4氧化潜力明显低于间隙灌溉处理,导致CH4排放通量显著高于间隙灌溉处理(p<0。
5) 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。
6) 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。
补充资料：二羟基氧化丙烯-氧化乙烯共聚醚
分子式：
分子量：
CAS号：
性质：一种破乳剂。蜡状粘稠液体。羟值≤50毫克KOH/毫。应用于原油脱水，配成一定浓度的水溶液即可使用。经氢氧化钾为催化剂，丙二醇与环氧丙烷、环氧乙烷 开环聚合而成。
分子量：
CAS号：
性质：一种破乳剂。蜡状粘稠液体。羟值≤50毫克KOH/毫。应用于原油脱水，配成一定浓度的水溶液即可使用。经氢氧化钾为催化剂，丙二醇与环氧丙烷、环氧乙烷 开环聚合而成。
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