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The hydrogenation and methyl esterification of furoic acid over Pd-Ni/γ-Al2O3 catalysts was investigated in fixed bed micro-reactor under different conditions such as reaction temperature,pressure,H2 space velocity,space velocity of furoic acid and methol,ratio of H2 and furoic acid and so on.

以糠酸、甲醇、氢气为原料，采用连续流动固定床微反应器，Pd-Ni/γ-Al2O3为催化剂，使糠酸一步加氢甲酯化生成α-四氢糠酸甲酯。

The hydrogenation and methyl esterification of furoic acid over Pd-Ni/γ-Al2O3 catalysts was investigated in fixed bed micro-reactor under different conditions such as reaction temperature,pressure,H2 space velocity,space velocity of furoic acid and methol,ratio of H2 and furoic acid and so on.

以糠酸、甲醇、氢气为原料，采用连续流动固定床微反应器，Pd-Ni/γ-Al2O3为催化剂，使糠酸一步加氢甲酯化生成α-四氢糠酸甲酯。研究了反应的温度，压力，气、液体流速，进料流量等因素对催化反应的影响。结果表明：在1.5MPa，250℃，氢气空速3300 h-1，液体空速3.0 h-1(氢油比为50)时，糠酸转化率为96.6%，四氢糠酸甲酯的选择性97.2.0%，产率94.0%。催化剂稳定性较好，连续运转280小时后未见活性下降。该反应体系活性高，选择性好，反应压力低，催化剂性能稳定，操作简单，产物易分离

At present,ethylvanillin has mostly been prepared in the world by pyrochemical oxidation of condensation compound of o-ethoxyphenol and glyoxylic acid,which is of the problem that the catalysts such as cupric oxide were removed difficultly in the end.

乙基愈创木酚-乙醛酸高温化学氧化法是目前国际上制备乙基香兰素的主要方法，但该法存在反应终了时铜盐或氧化铜等催化剂除去困难的问题。

The results reveral that a lower La/Ni ratio of the catalysts sould lead to a wider diameter distribution and a higher degree of graphitic nature.

实验结果表明不同催化剂前驱中的La/Ni比会影响碳纳米管的管径分布和石墨化程度。

The performance of the catalysts for H2S removal was investigated by means of thermal gravimetric method.

采用热重法对纳米α-FeOOH催化剂脱除H2S的性能进行了研究。

In this exploratory study, appropriate catalysts were sorted out; the preferable process conditions were ascertained and the universality principle of this kind of reactions was preliminarily discussed, which shows us a terribly attractive development prospect for its important academic and applied value for synthesizing polyurethane greenly.

通过这种探索性研究，筛选出了较优的催化剂，确立了较佳的工艺条件，并对此类反应的普遍性规律作了初步探讨，对聚氨酯材料的绿色清洁合成具有重要的理论和应用价值。

It may be concluded that the Fe_2O_3/MgO sites,localized on Mg atoms,are acidic(presumably Lewis-type) in nature and that these results provide evidence for the heterolytic decay of the hydroperoxide to phenol and acetone.It was found that the activity of the catalysts had relationship with their redox behaviour.

氧化催化剂的活性与其氧化还原性具有一定的相关性，催化剂还原性越好，越容易导致异丙苯过氧化氢分解，进而促进异丙苯的转化。

This thesis studied the alkylationperformances of supported heteropoly acid and zeolite catalysts as well as correlativeprocesses, which is significant for theory and practical application.

开发新一代无污染的固体酸烷基化催化剂，备受石化企业的关注。

Enichem which use the catalysts of improving gmolecular sieve and metal oxide and heteropoly compounds will be most popular method.

其中改进了Enichem法的分子筛和金属氧化物以及杂多化合物为催化剂的方法逐渐占据了主流。

The high catalytic activity was found over the prepared supported heteropoly compound catalysts in this reaction.

结果表明，这些负载型杂多化合物催化剂都表现出较高的催化活性。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。