甲烷

These studies indicate that the boron fluoride with nitromethane or acetone system with higher separation factor is superior to the anisole system used currently,but a more detailed study is.

采用苯甲醚、硝基甲烷、丙酮、甲基异丁基甲酮4种络合剂分别与三氟化硼合成出了4种络合物体系。

The effect of pressure of methane and voltage on conductivity of Baijiao anthracite has been studied.

研究了四川白皎无烟煤电导率与甲烷压力和外加电压的关系。

Conversion of Methane to aromatics by low-temperature activation in the presence of higher hydrocarbon is of great scientific and ...

在较高碳链的烃存在下，甲烷能够被低温活化转化为芳烃，此反应具有重要的理论和实际意义。

Methane non-oxidative aromatization is very significant to utilization of resources and science of catalysis.

甲烷无氧芳构化反应对能源利用和催化科学均具有重要意义。

The effect of catayst surface structure on methane aromatization was characterized by using NH 3 TPD and XRD.

结果表明，适量引入Co 助剂可显著提高甲烷的转化率和芳烃收率，降低焦炭的生成，提高催化剂的稳定性。

After intensive efforts from some catalytic research groups worldwide for about 10 years, many encouraging progress in terms of methane activation and aromatization mechanism have been achieved.

经过近十年的研究探索，在甲烷活化、芳构化机理方面均已取得了重要的成果，并形成了一些主要的观点。

It shows that there are cracking and aromatization reactions of C2,C3and C4 hydrocarbons,but no conversion of methane is found.

结果表明，在不同催化剂上，都会发生C2～C4烃的裂解和芳构化反应，但没有观察到甲烷的转化。

The aromatization performance of Mo/HZSM-5 with different molybdenum species has not been well investigated.

另一方面，使用MoO_3／HZSM-5进行甲烷芳构化反应时，反应过程中钼物种会被还原和碳化形成多种钼物种，但关于这些不同钼物种的Mo／HZSM-5催化剂的芳构化性能尚不清楚或存在争议。

The results show that the liftoff height of the CH4/Air jet flame decreases with the increase of the coflow temperature, and the change of the liftoff height versus the coflow temperature presents the twostages behavior, and the stabilization of lifted flame is dominated by the autoignition of premixed homogeneous mixture in lower coflow temperature range. The phenomena of rapid multipoint autoignition were observed in the experiment of diesel fuel spray issuing into the CATA, and a special lifted flame appeared with a triple flame.

结果表明：甲烷气体燃料火焰起升高度随协流温度的升高而降低，呈现出两阶段变化特点，低温段发生了明显的自燃现象，其火焰稳定由均质混合气自燃所主导；柴油液雾燃烧试验观察到了快速的多点自燃现象，形成了独特的起升火焰，有三重火焰的特征。

From the methanol-sewage sludge-enrichment culture one methanosarcina, two vibrios and one bacteroid have been isolated.

经对该富集培养物的分离培养，已分离出4株厌氧细菌，其中一株为甲烷八叠球菌，两株为弧菌，一株为杆菌。

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。