氢分压

氢分压对加氢裂化过程的影响

Effects of hydrogen partial pressure on hydrocracking process

研究表明：氢分压、反应温度、体积空速对柴油逆流加氢工艺的影响和常规并流工艺基本一致，但氢油体积比在一定的范围内对两种工艺的影响差异很大。

The study shows that the hydrogen partial pressure , reactor temperature , volumetric space velocity have the similar impact on countercurrent hydrogenation process as on the conventional co-current hydrogenation process .

考查了AUC分解产物在还原过程中的粒度效应和氢分压效应。

The effects of particle size and partial pressure of hydrogen are examined in the reduction of AUG decomposition product .

结果表示，扰乱立即导致了相应的酸和氢分压（pH2）的浓度积累。

Results showed that the perturbation caused immediate concentration buildup of the corresponding acid and partial pressure of hydrogen ( p _ H_2 ) .

考察了氢分压、反应温度、催化剂颗粒大小对4-CBA消失速率的影响，并采用幂函数动力学模型拟合得到了接近工业反应温度范围的表观动力学方程。

The dependence of dissipation rate of 4-CBA on reaction conditions such as hydrogen pressure , agitation rate , temperature and catalyst particle size was carefully ( investigated . )

从热力学分析可以发现，在低于某一临界温度和高于某一临界氢分压时Nd2Fe14B发生歧化分解。

Further , it was found that disproportionation reaction of Nd_2Fe_ ( 14 ) B phase occurs under one critical temperature and over one critical hydrogen pressure .

反应温度对速率常数的影响用Arrhenius方程关联；氢分压和氢油比对速率常数的影响用幂函数的形式表示。

In the model , the Arrhenius Equation is used to correlate the effect of temperature with the rate constant , and the effects of pressure and hydrogen / oil ratio on rate constant is expressed in terms of exponent power functions .

结果表明，氢分压变化对不同分子结构的反应物有不同的影响。

Pressure has different effects depending on the molecular structure of reactants .

氢分压对种间氢转移的影响

The Effect of Partial Hydrogen Pressure on Interspecies Hydrogen Transfer

淀粉基质厌氧消化的氢分压变化状况

The ph_2 changing state of starch substrate in anaerobic digestion

这些悬挂键在较高氢分压下可部分被饱和。

These dangling bonds can be saturated by H.

分析了电弧区水蒸气分解及解离的热效应，利用数值方法计算出电弧非导电区的温度及氢分压分布；

The temperature distribution of arc and partial pressure of hydrogen are estimated by the numerical method .

此外，还对氢分压与丙酸积累的相关性提出新的见解。

In addition , a new idea for the correlation of hydrogen pressure with the accumulation of propionic acid was put forward .

进而引入细胞代谢最小能量子概念，对理论氢分压进行修正，得出沼气发酵适宜的理论氢分压范围和最佳氢分压。

It also introduces the concept of the minimal energy units in the metabolism , revises theoretic partial hydrogen pressure , gains its suitable scope and the optimal value .

氢分压的提高促进了与芳香环连接的碳键的断裂，与反应物的分子结构无关。

In any case , the break of C & C bonds between the aromatic ring and the whole branch chain are promoted with the increasing of partial hydrogen pressure .

同时，根据氢分压对极化电阻、交换电流密度以及极限电流密度的影响估算了氢气氧化反应的表观反应级数。

The empirical reaction order was estimated from the dependence of electrode polarization resistance , exchange current density , and limiting current density on the hydrogen partial pressure ( PH2 ) .

结果表明，在反应温度260～270℃、氢分压3.0MPa、空速3.0～5.0h-1及氢油体积比480～550条件下，噻吩的转化率可达100%。

The results showed that thiophene conversion of 100 % was attained under reaction temperature 260 - ( 270 ℃), hydrogen pressure 3.0 MPa , LHSV 3.0-5.0 h ~ ( - 1 ) and hydrogen / oil ratio 480-500 .

得知在转化率为80%以前原料的转化速率对氢分压为0.7级，对原料的浓度为零级。

When the conversion is not over 80 % , the conversion rate of raw material with respect to the partial pressure of hydrogen would be of 0.7th order , and to the concentration of raw materials would be of zero order .

通过考察反应温度、氢分压、氢油比和空速对加氢脱色反应的影响，建立柴油馏分加氢脱色反应动力学模型。

A kinetic model of gas oil hydro-decolorization has been established based on the study of the effects of process parameters on color of hydrotreated products : namely , the reaction temperature , hydrogen pressure , hydrogen / oil ratio and space velocity .

通过理论分析和实验，提出了在工业条件下原料气中氢氮分压变化（包括氢氮比、惰性气体含量、合成压力变化）与熔铁催化剂氨合成率变化之间的关系式。

Through theoretical analysis and experiments a relationship is proposed between the change in hydrogen and nitrogen partial pressures in syngas ( including change in hydrogen nitrogen ratio , inert gas content and synthesis pressure ) and the change is ammonia conversion percentage on molten iron catalyst under industrial conditions .

钛合金气相充氢中氢分压的测量方法

The Method of Measuring the Pressure of Hydrogen During the Hydrogen-Charging of Gases to Ti-Alloy

通过对40万t/a润滑油加氢处理装置反应器氢分压系统及新氢压缩机系统的理论核算，论证了连续重整装置富氢在加氢装置应用的可行性。

Through the theoretical calculation on partial pressure of hydrogen and the system of hydrogen make up compressor in 400 kt / a hydrogenation unit of lube , the application feasibility of hydrogen-enriched for catalytic reforming unit with continuous catalyst regeneration in hydrogenation unit of lube were investigated .

ASBR反应器中，糖原的储存不仅能减缓VFA的积累，且能减小产氢速率，降低反应器内的氢分压，从而为ASBR反应器的高效稳定运行创造良好条件。

Glycogen storage can not only slow down the accumulation of VFA , but reduce the production rate of hydrogen , lower hydrogen partial pressure in ASBR , create a good condition for the stable and efficient operation of ASBR .

气液逆流加氢工艺很好的解决了温度、氢分压和H2S吸附的匹配问题并通过小试和中试试验证明了逆流操作方式的优势，这对于获得超低硫清洁柴油非常有必要性。

Counter-current hydrogenation technology had a good solution to matching problem as temperature , hydrogen pressure and H2S adsorption .

F/M越高，储存的糖原量越多，相应地基质直接降解为VFA的份额越少，单糖直接发酵过程的产氢速率则较为缓慢，从而导致反应器中的氢分压较低。

Higher F / M led to more glycogen storage , less VFA directly degraded from substrate , and slower hydrogen-producing rate , lower hydrogen partial pressure in reactor .

然而，在产甲烷的作用下，通过产氢产乙酸菌和产甲烷菌间的种间氢转移，体系中的氢分压大为降低，使整个消化过程得以顺利进行。

However , in the presence of methanogenesis the hydrogen interspecies transfer between the hydrogenic and acetogenic bacteria and methanogenic bacteria makes partial hydrogen pressure decrease greatly , and then the whole process of anaerobic digestion can carry out favorably .

结合热力学理论和实验数据，得到了氢在TiAl二元合金熔体中的溶解度模型，建立了氢在TiAl二元合金熔体中的溶解度与合金成分、氢分压和熔体温度的关系。

A formula of hydrogen solubility in TiAl alloy melt was obtained based on thermodynamic theory and experimental data . The relationship of hydrogen solubility in TiAl binary alloy melt between composition , partial pressure of hydrogen and melt temperature was established .