查询词典 sulfur dioxide

So the difficult sequence of cracking to remove the sulfur for different sulfur compounds is that thiophene, benzothiophene＞alkyl side-chains of thiophenic compounds＞mercaptan, sulfur ether.

总之，不同含硫化合物裂化脱硫的难度顺序为：噻吩、苯并噻吩＞烷基噻吩＞硫醇、硫醚。

Catalytic techniques for deep desulfurization, denitrogenation and dearomatization in production of clean gasoline and diesel fuels were reviewed, especially those for producing low-sulfur and extra-low-sulfur gasoline and diesel oil, among which technologies arousing most attention are sulfur-reducing FCC catalyst and additives, selective hydrogenation catalysts and technology, adsorptive desul-f urization of gasoline and diesel oil, biologically catalytic desulf urization of diesel oil, and selective oxid...

为面对新世纪清洁燃料生产的新机遇和新挑战，各种生产清洁燃料的催化技术正在竞相开发之中，尤其是生产低硫、超低硫汽油与柴油技术。其中，催化裂化降硫催化剂和助剂、选择性加氢处理新催化剂及工艺、汽柴油吸附脱硫、柴油生物催化脱硫和选择性氧化脱硫等新技术尤其引人注目。我国应加快清洁燃料生产催化新技术的开发研究，为生产更清洁的汽油和柴油燃料提供技术储备。

This company intends to adopt special technology developed by China South Chemical Industry Group, Mainly including sulfured hydrogen burning procedure, sulfur burning procedure, sulfur transforming procedure, sulfur dry absorbing procedure, and so on.

该项目采用南化集团公司研究院开发的专有技术，主要包括硫化氢燃烧工序、硫磺燃烧工序、转化工序、干吸工序等。

It is found that the loss of sulfur in sulfurized catalyst for both catalysts will be observed when sulfur content in inlet gas is lower than 0.1%, however, the sulfur content in practical coal gas is enough to avoid the phenomenon.

然而在实际的热煤气含硫的情况下，它显示出相当高的催化转化反应活性，适于在热煤气净化的条件下使用。

The results show that stable organic sulfur is the main s9lfur form in ZY coal. Pyrite can be removed under all the atmospheres in the tests, except for nitrogen at 500℃ 1% O2-N2 atmosphere has strong reactivity to remove the stable organic sulfur in ZY coal, especially at 700℃. Under 1% O2-N2 atmosphere, not only a part of stable organic sulfurs can be decomposed, but also more stable organic sulfur-containing structure can be broken down into less stable one.

结果表明，对于ZY煤而言，黄铁矿和不稳定有机硫除在氮气气氛下500℃时热解不能全部分解外，在其他条件下热解时都可以分解。1%氧气对ZY煤中稳定的有机硫的分解有很强的促进作用，不仅可以脱除稳定的有机硫，还可以使更稳定的有机硫断裂生成次稳定的有机硫，在随后的AP-TPR-MS实验过程中，这部分硫在较低的温度下逸出。

In this study,the organic sulfur compound is decomposed in a oxygen flask;organic sulfur is turned into sulfate sulfur,and then the measure of sulfate is determined by Barium Chromate Spectrophotometer .

本文用氧弹燃烧法将煤中有机硫氧化成二氧化硫和三氧化硫，再将其转化成硫酸盐硫，建立铬酸钡光度法测定硫酸根的方法，从而间接得到有机硫的含量。

In order to obtain better quality of this experiment, huaiqing yam with no sulfur protect color as the breakthrough point, through the huaiqing yam without sulfur protect color and drying, thus huaiqing yam best without sulfur and drying protect color matching, the actual production for huaiqing yam application support.

为了获得更好品质的怀山药，本试验以无硫护色为切入点，通过对怀山药进行无硫护色和热风干燥的研究，从而获得怀山药最佳无硫护色配比和热风干燥规律，为怀山药的实际生产应用提供支撑。

This makes sure that this removing sulfur technics is executable and it is better than other removing sulfur methods, for instance, chemical removing sulfur etal..

这不仅证实了该脱硫工艺的可行性，同时也说明了该脱硫方法要比其它脱硫方法如化学脱硫法等要优越。

The selective reduction of sulfur dioxide with hydrogen to elemental sulfur is studied over Ru/Al 2O 3 in this paper.

本文对用H2 来使SO2 选择性催化还原为单质硫在Ru/Al2 O3催化剂上的行为进行研究。

The oxides are sulfur dioxide and sulfur trioxide, which when dissolved in water make sulfurous acid and sulfuric acid, respectively.

硫的氧化物有二氧化硫和三氧化硫，溶于水中时分别形成亚硫酸和硫酸。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。