氧化性气氛
- 网络oxidizing atmospheres
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还原性气氛下粒径增大会促进燃料N的转化,而氧化性气氛下粒径的影响恰好相反。
And the effect of char particle size on fuel-N conversion in oxidizing and reducing atmosphere is opposite .
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基于PDM(pointdefectmodel),研究了UO2+x在微氧化性气氛下低温烧结的机理。
Based on point defect model , the mechanism of low-temperature sintering for uranium dioxide was studied in this paper .
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氧化性气氛下随CO2体积分数的增加,燃料中氮的氧化率也增加,但循环NO的降解率升高。
With the concentration of CO_2 increasing , oxidization ratio of fuel nitrogen increase but the reduction ratio of recycled NO decrease in oxidization atmosphere and increase in reducing atmosphere .
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氧化性气氛下,温度的提高会促进烟煤焦炭燃料N的转化,而对无烟煤焦炭则基本无影响;还原性气氛下,温度的提高均会遏制燃料N的转化。
In oxidizing atmosphere , as temperature increases , the bituminous char-N conversion increases . However , it has little influence on the anthracite char-N conversion . In reducing atmosphere , temperature increasing suppresses the fuel nitrogen conversion .
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研究了氧化性气氛、还原性气氛、温度和过量空气系数对稀硫酸分解生成SO2的转化率的影响,并分析了稀硫酸分解的反应机理。
The reaction mechanism on decomposition of dilute sulphuric acid was analyzed . The effects of oxidizing and reducing conditions , combustion temperature , and excess air on SO2 conversion were obtained .
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氧化性气氛(O2)及还原性气氛(H2)对V(oc)有较大的影响,不同环境气氛中V(oc)值的大小顺序是氧气>空气>氮气>氢气。
The oxidizing atmosphere ( O2 ) and the reducing atmosphere ( H2 ) have greater influences on Voc . The order of Voc In different atmosphere is found to be : O2 > air > N2 > H2 .
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B2O3的形成自由能远比Fe2B、FeB的形成自由能低。在氧化性气氛中不可能存在硼原子,不具备渗硼的热力学条件。
The free energy of formation for B_2O_3 is much lower than those for Fe_2B and FeB. In the oxidizing atmosphere , therefor , there is no thermodynamic condition of forming active boron atoms which is essential for boronizing .
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利用EPMA和高温差热分析仪(TGA),针对低碳钢在不同氧含量的氧化性气氛的高温氧化行为进行了系统研究,获得了实验钢的氧化激活能和氧化铁皮生长形貌。
EPMA and TGA were used to explore the high temperature oxidation behaviour of the low carbon steel under oxidant gas condition with different oxygen content . The oxidation activation energy and growth morphology of the scale were obtained .
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在300~2000K温度范围内,考察了痕量元素在还原性气氛和氧化性气氛的烟气中的化学形态和物理相。
The chemical morphology and physical phase of these trace elements in the oxidizing and reducing atmosphere are also studied in a temperature range from 2 000 K to 300 K.
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在氧化性气氛中含碳球团直接还原的研究
Study of the Direct Reduction of Carbon-Containing Pellets under Oxidizing Atmosphere
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氧化性气氛可促进含碳球团中硫的挥发。
The oxidation atmosphere can promote the volatilisation of sulfur in pellets .
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含碳球团在氧化性气氛中的还原机理
Reduction Mechanism of Pellet Containing Carbon in Oxidizing Atmosphere
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二氧化铀芯块的低分压氧化性气氛烧结
Low-Temperature Sintering of UO_2 Pellets in Low-Partial-Pressure Oxidizing Atmosphere
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石墨流态粒子炉的气氛属于弱氧化性气氛。
Atmosphere of fluidised bed furnace with graphite particles is atomsphere of low oxidizing atomsphere .
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氧化性气氛比惰性气氛更利于二恶英的分解。
The degradation of dioxins under oxidized atmospheres is easier than that under inert ones .
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氧化性气氛下流化床中煤的热解脱硫及硫的分布
Sulfur removal and its distribution during coal pyrolysis in fluidized bed reactor under oxidative atmospheres
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采用直流反应溅射方法制备SnOx气敏薄膜,并且在200℃~1000℃的氧化性气氛中进行退火处理。
Tin oxide thin films were deposited by dc magnetron reactive sputtering and subsequently annealed at 200 ℃~ 1000 ℃ .
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文中并提出了在工艺过程中应采用惰性或弱氧化性气氛。
So we make a conclusion that the technological process must be kept in the inert or low oxidative atmosphere .
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平衡分析表明,在煤燃烧产生的氧化性气氛的烟气中,高硫含量会抑制单质汞的排放。
Results showed that in the oxidative flue gases atmosphere of coal combustion , sulfur can inhibit Hgo ( g ) formation .
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结果表明氧化性气氛可大大增加半焦的内比表面积,但对半焦产率的影响较小。
It shows that the surface area of the char is greatly increased , but the yield of the char only a little changed .
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根据在高温氧化性气氛下磨料磨损的工况条件,合理设计了抗磨耐热钢材料的组织和化学成分。
According to the working condition of high temperature and abrasive wear , the material structure and composition of the wear-resistant and heat-resistant steel are designed .
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适于在氧化性气氛中测温,不适于还原性气氛中使用,可用于短期内真空测温。
Suitable temperature in the oxidizing atmosphere , reducing atmosphere is not suitable to use , can be used for short-term temperature measurement inside the vacuum .
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指出脱锑过程必须在弱氧化性气氛和沉降斗温度维持在655℃以上进行,才能收集到较纯的锑氧产品。
To obtain purer antimony oxides the roasting should be carried out in the low oxygen atmosphere with the temperature of gravity collector at more than 655 ° c.
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热解温度影响最大在800℃时,氯析出率明显高于较低温度时氯的析出,达79.1%;氧化性气氛中,氯的析出率比惰性气氛中高;
Chlorine release rate at 800 ℃ reaches to 79.1 % obviously higher than lower temperatures , chlorine release rate in the oxidizing atmosphere is higer than in the inert atmosphere ;
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采用控制混合料中氧化亚铁含量进行配矿,保证生石灰用量,改善料层透气性和氧化性气氛等措施,可以获得以铁酸钙为主要粘结相的烧结矿。
By controlling FeO and quicklime content , and improving the permeability and oxidation atmosphere of the sinter bed , the sinters with calcium ferrite as main binding phase can be produced .
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充分利用煤颗粒在自由落下床反应器中停留时间短的特点,直接用空气做载气,对自由落下床反应器中煤在氧化性气氛下的快速热解行为和硫的变迁进行了研究。
Considering the very short particle residence time in the free-fall reactor , air was directly used as carrier gas to study the fast pyrolysis and sulfur evolution of coal under oxidizing atmosphere .
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大电流、低电压、粗焊丝、反极性和氧化性气氛是形成潜弧过程的必要条件,其中电流是最重要的条件。
The high current , low voltage , reverse polarity , oxidative shielding gas , thick wire are the essential conditions of formation of the buried are , the high current being the most important factor .
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在高温氧化性气氛及磨料磨损工况下工作的炉排件,不仅要求材质具有高的高温强度和一定的耐磨性,还要有良好的抗氧化性,才能满足其使用性能的要求。
For the wear-resistant and heat-resistant parts working at high temperature and abrasive wear , their material not only requires high-temperature strength and enough wear resistance , but also requires good oxidation resistance to meet the demand for their performance .
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并利用水平管式炉对两种煤样进行了燃烧前温和热解实验,研究煤样在惰性气氛和微氧化性气氛下汞和硫的脱除特性。
Then the mild thermal upgrading experiment was taken out by using a horizontal tube furnace . The mercury and sulfur releasing characteristics of the two coal samples during mild thermal upgrading were studied under low oxidizing atmosphere and N2 atmosphere .
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然而,C/C复合材料有一个致命的弱点,即在高温氧化性气氛下极易氧化,氧化对其性能影响非常显著,因此防氧化成为C/C复合材料高温有氧气氛下应用的前提条件。
However , C / C composite composites have a fatal weakness and can easily be oxidized at high-temperature oxidizing atmosphere . The oxidation of these composites limited their application . It is therefore important to increase its resistance towards air oxidation at high temperature .