甲烷

And then methanesufonic acid which is colorless and oderless is obtained by the hydrolysis of methane sulfonyl chloride at 70～90℃.

以硫、硫化钠、硫酸二甲酯为起始原料制备了二甲基二硫，然后用氯气氧化二甲基二硫得甲烷磺酰氯，经水解合成了甲烷磺酸，产品无色无味。

The best disinfection methods should be selected to achieve tetter water quality in biological stability and DPBs, Chloramination (chlorine to ammonia by 3:1) results less DBPs and AOC formation (HAAs by 90%, THMs by 70%, AOC by 10% respctively).

氯胺消毒在对消毒副产物卤乙酸和三卤甲烷以及 AOC 的影响方面均优于氯消毒，特别是消毒副产物，采用氯氨比3： l 比例时卤乙酸下降约90％，三卤甲烷下降70％，对提高饮用水水质有很好的作用。

In order to realize efficient conversion of methane, thermal diffusion column reactor was used to dehydrogenative coupling of methane.

为了实现甲烷的有效转化，使用热扩散管反应器进行了甲烷的脱氢偶联反应。

The experiment also demonstrated that methane emission in the field with planted rice was 41.4 % higher than that of unplanted rice.

试验结果还表明，种植水稻明显增加了稻田甲烷排放量，与浸水稻田相比，植稻田甲烷排放量增加了41.4 %。

From the present study, it is postulated that the effect of vegetable oils on methane emission is concerned with the type and inclusion levels. Methane formation was decreased significantly with increasing levels and unsaturation of fatty acids in vegetable oils.

本试验结果表明植物油降低甲烷的效果跟其来源和添加水平有关；随着植物油添加水平的提高和所含不饱和脂肪酸不饱和度的增加，甲烷生成量显著降低。

G. the perfumes. The wall forming materials were TDI (2, 4-toluene diisocyanate) or 80/20TDI, triphenyl methane triisocyanate and biphenyl methane-4, 4-diisocyanate , Poly vinyl alcohol was used as protective colloid and GPE2040 was used as the emulsifier.

壁材单体分别使用了2，4-甲苯二异氰酸酯、80／20-甲苯二异氰酸酯、三苯基甲烷-4，4′，4-三异氰酸酯和二苯甲烷-4，4′-二异氰酸酯；保护胶体是聚乙烯醇；乳化剂是聚醚2040；催化剂使用二月桂酸二丁基锡。

By research on the concentration change and distribution of methyl bromide in the container, we found that in the first period of fumigating, the absorption of the goods to methyl bromide became quickly, so did the concentration decline of the fumigant because of leakage of the carton itself. The distribution of the fumigant is not uniform in the aclinic and vertical directions. The absorption of the goods to methyl bromide completed after 6 hours delivered the gasified fumigant and the distribution of the concentration in space got balance.

对溴甲烷在集装箱内浓度的变化与分布规律进行研究，发现熏蒸开始阶段，货物对熏蒸剂的吸附及箱体渗漏使气体浓度下降较快，且在水平和垂直方向都存在分布不均匀的现象，气化投药后6小时，货物对溴甲烷的吸附已基本完成，浓度空间分布达到平衡。

Furthermore, benzoic acid, p-toluic acid and p-phthalic acid were transformed slowly in sediment slurries amended with BESA (20 mM) under the condition of 100% CO2 and H2/CO2 (20/80), respectively, and the sediment slurry was dominated by methanogene bacteria.

在底泥含有甲烷菌抑制剂及上层气体分别为100% CO2和H2/CO2 (20ml/80ml)时，苯甲酸、对位甲基苯甲酸及对位苯二酸之分解变慢，且此底泥菌群是以甲烷菌为主要优势菌。

SO〓〓/M〓O〓 solid superacid was applied to the photocatalytic oxidation of organic pollutants for the first time. Porous SO〓〓/TiO〓 solid superacid catalysts with high specific surface area were prepared by sol-gel method. The photocatalytic degradation of bromomethane was used as model reaction. The influence of impregnation with H〓SO〓 solution on the structure of catalysts and their photocatalytic performance was systematically studied by using X-ray diffraction, X-ray photoelectron spectroscopy, N〓 sorption analysis applying BET method, UV-Vis diffuse reflectance spectroscopy, FTIR spectroscopy, O〓-TPD and photocatalytic activity measurement. The acidity of TiO〓-based catalysts was investigated by Hammett indicator method, NH〓-TPD and IR spectra of pyridine adsorbtion. The mechanism of superacidifing effects on photocatalytic performances such as the photocatalytic degradation rate of bromomethane, apparent kinetic constant and apparent quantum efficiency was discussed.The results indicated that SO〓〓 is combined with metal ions of TiO〓 in a chelating bidentate mode.

本文首次将SO〓〓/MxOy型固体超强酸催化剂用于光催化氧化有机污染物研究，采用溶胶-凝胶法制备了具有多孔性和大比表面结构的二氧化钛基固体超强酸光催化剂SO〓〓/TiO〓，以光催化降解溴代甲烷为模型反应，系统地研究了H〓SO〓浸渍处理对催化剂表面酸性及其气相光催化性能的影响，结合XRD、BET、XPS、FTIR、Hammett指示剂法、吡啶吸附红外光谱、NH〓-TPD、O〓-TPD、紫外可见漫反射光谱等多种表征手段，深入地讨论了超强酸化对TiO〓的改性机理，阐明了引起SO〓〓/TiO〓超强酸催化剂光催化降解溴代甲烷的转化率、表观反应速率常数和表观量子效率变化的本质原因。

Caproic acid is produced by the fermentation of caproic acid bacteria.In old pits,there is the"species－H2－transformation"between methane bacteria and caproic acid bacteria.

老窖中存在己酸菌与甲烷菌的&种间氢转移关系&，甲烷发酵有促进己酸发酵进程多产己酸的作用，从而增加己酸乙酯含量，提高酒质。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。