However, mercaptan sulfur in DCC gasoline, which has been sweetened at a low operating space velocity and concentrated by solvent extraction, cannot be detected by flame photometer detect. 对脱臭汽油先进行萃取浓缩,再用气相色谱对其进行检测,无硫醇硫存在。
Industrial computation of critical space velocity rising from cavity in radial flow moving beds for flue gas purification 烟气净化径向移动床空腔临界空速行为的工程计算
The results showed that instability of operation temperature and increase in space velocity and pressure would cause deterioration of the activity stability, resulting in shorter service cycle. 结果表明,操作温度的不平稳、空速及压力的提高均会造成催化剂活性稳定性变差,运转周期缩短。
Preparation of pre-hydrogenation catalyst RS-20 with low price and high space velocity for reforming feedstock 高空速低成本重整预加氢催化剂RS-20的制备
Effects of calcination temperature, space velocity, base content, reaction temperature, modification of various ions on the reactivity and selectivity of the catalysts were examined. 考察了催化剂焙烧温度、空速、碱含量、反应温度和不同阴、阳离子改性对催化剂活性和选择性的影响。
The effects of reaction temperature, space velocity, molar ratio of water to methanol, and reaction time on the performance of the micro reactor were investigated. 试验研究分析了反应温度、进料速度、水醇比(水和甲醇的物质的量的比)、反应时间对甲醇水蒸气重整制氢微型反应器性能的影响。
The catalyst alkylation performance was studied under different temperature, space velocity and pressure. 在一定的温度、空速和压力的范围内,考察了催化剂的烷基化性能。
During the operation of SCR catalyst, the influence of temperature, space velocity, and mole ratio of NH3/ NOx on catalytic performance have been analyzed. 在SCR催化剂的运行过程中,分析了温度、氨氮摩尔比等参数对催化剂性能和寿命的影响。
Studies of the Heat Transfer in a Rotor-Stator Cavity with the Change of the Radial Position of Pre-swirl Nozzle; Industrial computation of critical space velocity rising from cavity in radial flow moving beds for flue gas purification 预旋孔径向位置变化对转&静盘腔内换热影响的研究烟气净化径向移动床空腔临界空速行为的工程计算
Effect of space velocity on the performance of methane steam reforming in a plate micro-channel reactor 空速对平板微反应器内甲烷水蒸气重整的影响聚甲基丙烯酸甲酯板
The proper adjustment of the ratio of reactants, the space velocity of reaction, the pulse voltage and repeated frequency of the plasma discharge can raise the yield of hydrogen peroxide. 适当调整反应物(氢气和氧气)的比率、反应的空速、放电的脉冲电压和重复频率能够提高过氧化氢的产率。
The effects of reaction temperature, space velocity, solvent amount, and by-products on hydration reaction are investigated. 实验考察了反应温度、C4空速、溶剂用量及副产物对水合反应的影响。
Influences of temperature, pressure and space velocity on olefin-reducing result were investigated for treatment of FCC gasoline. 对FCC汽油进行降烯烃处理,考察温度、压力和体积空速对降烯烃效果的影响。
The effect of space velocity on catalyst was studied as well as concentration and temperature. 考察了空速、进料浓度、反应温度等因素对催化剂活性的影响。
The effects of the dosage of active components, reaction temperature and gas hourly space velocity on catalyst activity and selectivity were surveyed. 评价了活性组分的添加量、操作温度和空速对催化剂活性和选择性的影响。
Influence of water vapor content and space velocity on the two reactions was also investigated. 此外还考察了水蒸汽含量以及空速的变化对反应的影响。
Under certain pressure and space velocity conditions, the optimum H2/ N2 was different for different reaction temperature. 在压力和空速一定的条件下,最佳H2/N2随反应温度而异。
Meanwhile, reactivation time was determined by space velocity and oxygen content. 而再生气空速和氧含量决定了再生时间。
The model developed can be used to describe the change of methanol fractional conversion, space-time yield of hydrogen and the outlet temperature of bed at different operating conditions, such as raw material ratio, pressure, space velocity of liquid, wall temperature and inlet temperature. 考察了不同的原料液配比、系统压力、液空速、壁温及进口温度下甲醇的转化率、氢气的时空产率和床层出口温度的变化。
Temperature and space velocity influence the activation of Fe 1-x O based catalyst greatly, but pressure does not. 空速和温度明显影响Fe1-xO基催化剂的活化,而压力影响不如它们显著。
The effects of reaction temperature and liquid space velocity were studied. 同时研究了反应温度与液态空速对甲醇转化过程的影响。
NO conversion decreased with increasing space velocity. NO转化率随着空速的增大而降低。
The results showed that the pore structure and surface acidity of carrier were affected by treating time, space velocity and calcination temperature evidentially. 结果表明处理时间、空速及焙烧温度对催化剂载体的孔结构和表面酸度均有显著影响;
The effects of reaction temperature, pressure, space velocity, molar ratio of hydrogen/ furfural were studied. 研究了反应温度、压力、空速、氢/醛摩尔比对2-甲基呋喃收率的影响。
Low volumetric hourly space velocity and high reaction temperature are conducive to catalytic methane decomposition. 低空速和高温有利于甲烷裂解反应的进行。
It was found that conversion rates of H2 and CO decrease with space velocity, while generate more higher alcohols, the content of methanol in total alcohol was also improved. 研究结果表明增加空速降低了H2和CO的转化率,但提高了低碳醇的产率,空速增加,甲醇在总醇中的含量也随之增加。
Reduction temperature, time and reduction gas space velocity all have effects on catalyst activity. 还原温度、时间以及还原气空速对催化剂活性都有影响。
The adsorption capability was much better under the lower space velocity. 较低的空间速度下吸附性能较好。
Kinematic viscosity and viscosity index increases as space velocity increases. 空速升高,粘度及粘度指数增大。
On the other hand, in the reverse flow catalytic combustion system, the effects of operational parameters such as space velocity, toluene concentration and period duration on the shape of heat waves and the characteristic parameters such as peak temperature, average temperature were investigated. 另一方面,在流向变换催化燃烧反应系统中,系统考察了操作参数(甲苯浓度、空速及切换周期)对热波形状与特征参数(波峰温度、平均温度和移动速度)的影响。