硫化物

The components of the catalyst are sulfurated more completely with a longer reaction time. But the catalyst congregates into a large volume ball with a low BET surface area after a certain reaction. So the best range of reaction time is from 60 to 90 minutes.

研究发现，虽然硫化时间的延长可提高催化剂中金属组分的硫化物含量，但超过一定反应时间可导致硫化物过度结晶聚集，颗粒度增大，比表面下降，较佳的反应时间为60～90 min。

At present, diesel oil plays a more and more important role in the various kinds of fuel. But compare to gasoline, diesel oil has a high rate of sulfur compound. The sulfur compound is existed mainly as thiphene and thiphene ramification. These kinds of sulfur compounds are not easy to remove by adding hydrogenation. Thats why diesel oil has a high rate of sulfur compound. So it makes profound desulfurization a hot topic and a difficult problem in and outside the country. This paper takes dibenzonthiophene as a model to study the profound desulfurization of diesel oil with the help of biology and the oxygenating desulfurization under the condition of ultrasonic and microwave.

目前，柴油在燃料油中占的比重越来越大，而柴油较汽油馏分重，其硫化物主要以噻吩及噻吩衍生物的形式存在，这类硫化物用加氢的方法难以脱除，使柴油的含硫量较高，因此柴油的深度脱硫是国内外研究的热点和难点，本文以二苯并噻吩作为模型化合物，考察微生物的协同条件下对柴油的深度脱硫，超声波条件和微波条件下的氧化脱硫，并对超声波条件和微波条件下柴油的深度脱硫进行了对比。

Since H〓S and SO〓 adsorbed on TiO〓 could react with each other and TiO〓 is the medium of their electron transfer, thus SO〓 could not be adsorbed quite strong on the active site of TiO〓, which makes it more resistant to sulfating and increase the stability of catalyst. Finally, the model and mechanism of the reduction of SO〓 by NH〓 to elemental sulfur is advanced as follows: on the sulfide catalyst, ammonia is decomposed to N〓 and H〓, and H〓 reacts with SO〓 to form the intermedium of H〓S; then H〓S and SO〓 react as Claus reaction on TiO〓 catalyst.

反应系统中过量水蒸气的存在使催化剂表面某些活性位被水蒸气抑制使活性和选择性有较大幅度降低，但这种影响是可逆的，不会造成催化剂永久性中毒；另外当单质硫和水蒸气同时存在时，在〓催化剂上能够生成硫化氢和二氧化硫，而且由于硫化氢和二氧化硫化学吸附能力不同而导致它们的脱附顺序不同，硫化氢的生成温度总是低于二氧化硫的生成温度，说明过量水蒸气的存在会导致氧化物催化剂上逆克劳斯反应的发生；而在硫化物催化剂上几乎没有硫化氢和二氧化硫生成，说明硫化物催化剂能够抑制逆克劳斯反应的发生。

Influences of hydrogen sulfide, element sulfide, mercaptan, sulphuring ether, disulfide individually on silver strip corrosion of jet fuel, and of element sulphur coexisting with other sulfide on silver strip corrosion of jet fuel were studied.

考察了硫化氢、元素硫、硫醇、硫醚、多硫化物等单独存在时对喷气燃料银片腐蚀的影响；同时研究了元素硫与其它硫化物以不同浓度混合时对喷气燃料银片腐蚀的影响。

Packing with SRB for treating simulative wastewater with sulphate concentration and packing with CSB for treating simulative wastewater withsulfides by activated-charcoal, agar, synthesized sorbent--MagneticHollow porous Polystyrenemicrophere on Upper-flowing Fluidized Bed Reactor, the experiment results show: Magnetic Hollow porous Polystyrenemicrophere characterized with magnetism , large surface area , easier recovering and flowing, of which the reducing efficiency of SRB in Upper-flowing Anaerobic Fluidized Bed Reactor can reach 96 %, the reducing efficiency rate of CSB in Aerobic Fluidized Bed Reactor can come up to 88.4 %, which was the highest among the three sorbents.

本文分别以活性炭、琼脂、及自制的磁性多孔聚苯乙烯微球固定SRB和CSB，在上流式流化床反应器中处理模拟硫酸盐废水和硫化物废水，结果表明：磁性多孔聚苯乙烯微球具磁性、比表面积大、易回收等优点，固定化SRB的SO_4~(2-)去除率高达96％，固定化CSB的硫化物去除率为88.4％。

The composition of the multi metal primary ores with gold and silver in Hebei province is complex.

河北某矿石为含金银的多金属原生矿石，矿石成分复杂，金银与硫化物以及硫化物之间共生关系密切，分选难度较大。

The influence of chromatographic conditions (carrier gas and oven temperature) on the separation was investigated.

考察了色谱条件对催化汽油中各种烃类以及硫化物分离的影响，在定性了300多个烃类组分的同时，定性了催化汽油中的60多个硫化物。

To a certain extent, the oxidation of sulfide and releasing of heavy metals were controlled by the chemical characteristics of hydrological environment. This process gave rise to the formation of the metastable secondary metal-bearing minerals on the surface of sulfide in the sediment.

河流水体环境化学性质影响了沉积物中硫化物氧化作用的氧化速率，导致硫化物表面亚稳定的次生富重金属矿物相的形成，对水体质量的自净有一定的作用。

The sulphide layer is composed of sulphide and substrate phases, the sulphides include FeS and FeS〓.

渗层由硫化物相和基体相构成，硫化物为FeS和FeS〓。

Metal oxides which are present on the catalyst surface are converted in a conditioning step into metal sulphides, which provide the hydrogenation component of the bi-functional catalyst.

出现在催化剂表面的金属氧化物在预处理阶段转化为金属硫化物，该硫化物提供双功能催化剂的加氢成份。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。