中间产物

The gasification efficiency increased and the molar fraction of H2 decreased with an increase in the reaction temperature. The decomposition of PVA was more complete at higher temperatures. At 24 MPa, 500℃ and 120 s, the TOC remove rate, the carbon gasification rate and the hydrogen gasification rate were up to 71.46%, 67.97% and 157.24% respectively. A change in the residence time had no significant effect on the molar fraction of gas production but an increase in the residence time could enhance the gasification efficiency of PVA. It was found that the intermediates were mainly alkane, cycloparaffin, aromatic hydrocarbons, and low-molecular weight acids. It was supposed that PVA was degraded into small molecules through breaking of C-C bonds. Parts of the molecules were converted into H2, CO, CH4 and CO2 while some was converted into aromatic hydrocarbons.

过程探索发现：反应温度的升高能提高PVA气化效率，但气体产物中H2的含量随反应温度的升高有所下降；随着反应温度的升高，PVA分解趋于彻底，在压力24MPa、温度500℃、停留时间120s的条件下，TOC去除率、有机碳气化率和氢气化率分别达到71.46%，67.97%和157.24%；停留时间的变化对气体产物含量没有明显的影响，但延长停留时间能提高PVA的气化效率；PVA气化反应中间产物主要为链状烷烃、环烷烃、芳香烃及小分子酸，根据中间产物出现的顺序推测PVA的降解为由C-C键断裂形成小分子物质，这些小分子物质一部分转化为H2，CO，CH4和CO2，一部分形成难降解的芳香族化合物。

Therefore, we suggest that for heptane larger surface area is beneficial for higher photocatalytic activity.

而在降解甲苯的过程中，会生成反应活性很低的中间产物，这些中间产物覆盖在样品表面的活性中心，会影响其后进行的光催化反应。

Dichlorophenoxyacetic acid (2,4-D), a widely used herbicide, was treated by the ozonization technology in the laboratory.During the 2,4-D ozonization, the main categories of intermediates included chloric aromatics, dechlorinated aromatics and organic acids.Some of these intermediates have relatively high toxicity.Therefore, it is crucial to study the kinetics trend of intermediates diversion.

采用臭氧化高级氧化技术对2，4-D（2，4-二氯苯氧乙酸）污染物进行降解，2，4-D降解过程中会产生含氯芳香中间产物、无氯芳香中间产物和有机酸类中间产物，其中部分中间产物具有较高毒性，因此研究2，4-D臭氧化过程中间产物的动力学变化趋势是非常重要的。

Results:The results showed that the intermediates para benzoquinone had a higher toxicity, while the toxicity of the other intermediate products was much lower than that of chlorobenzene.

结果：除了降解中间产物对苯醌毒性比氯苯大得多以外，其他降解中间产物毒性均比氯苯低，未开环的降解中间产物对氯苯酚？

Thus the chemical composition of intermediate A is that of nickel nitrate tetrahydrate, that of intermediate B is of nickel nitrate dihydrate, that of intermediate C is of the monohydrate whilst that of D is anhydrous nickel nitrate.

因此，中间产物A的化学成分是四水硝酸镍，中间产物B的化学成分是二水硝酸镍，中间产物C的化学成分是一水化物，而中间产物D的化学成分是无水硝酸镍。

From comparative research of synchronous and asynchronous reaction of dehydrogenation and cracking of dipentene,it is shown that farraginous extent of by-products from synchronous reaction is relatively high.

双戊烯脱氢裂解的同步反应和异步反应对比研究显示，双戊烯脱氢裂解的同步反应产物比较混杂，反应产物中甲苯的相对含量仅为24.03%，双戊烯相对于甲苯的料耗比为5.34，甲苯的得率为30.79%，中间产物对伞花烃的得率为2.49%；双戊烯脱氢裂解的异步反应产物混杂程度相对较低，反应产物中甲苯的相对含量为40.74%，对伞花烃的相对含量为18.31%，双戊烯相对于甲苯的料耗比为3.33，甲苯的得率为49.26%，中间产物对伞花烃的得率为16.92%。

Results of the product analyses indicated that most of dye molecules could be facultatively broken down into simple intermediates, which would be further degraded under subsequent aerobic condition.

产物分析结果表明：80.5%的母体染料大分子能在兼氧条件下降解成较为简单的中间产物，并且这些中间产物能在好氧条件下进一步矿化。

Wood could be liquefied into soluble reactive intermediates, which could further reactedwith phenol or by themselves. Phenolation and recondensation were a pair of competingreactions. Decomposition, phenolation and recondensation dominated the whole liquefactiondynamic process and determined the structural characteristics of liquefied wood.

4木材组分在液化过程中逐渐分解为较小分子量的液化中间产物，这些中间产物的活性较高，可以继续与苯酚或互相之间发生酚化或再缩聚反应，酚化反应和再缩聚反应是一对互相竞争的反应，降解、酚化和再缩聚三种反应主宰着整个液化动力学过程，也决定着液化产物的结构特征。

S:Dye intermediate—Hacid could be treated effectively by Wet Air Oxidation process and Catalytic Wet Air Oxidation process,all the Hacid was decompounded in 5 minutes and some intermediate products,sueh as NH+ 4,SO 2- 4,HCOOH,CH 3COOH and so on,were formed.

湿式氧化和催化湿式氧化都能有效地处理染料中间体—— H-酸。所有的 H-酸在 5 min内均被去除和形成一些中间产物。在不同反应时间段测定了 p H值及阴、阳离子和小分子有机酸等中间产物。

The results show that WO_3 can be nitrided in the mixture gas of hydrogen and nitrogen, and ...

结果表明，WO3可以在氢氮混合气中被还原氮化；氮化反应分两段进行；在氢氮体积比(4～5)∶1，反应温度650℃的条件下，WO3可以被还原为产物W2N；在不同氢氮比的混合气中氮化，WO3会生成不同的中间产物WO2和WOXNY，中间产物WOXNY进一步氮化生成W2N要比WO2容易；助剂Ni的加入使氮化反应温度降低了100℃；载体γ-Al2O3的加入使金属氧化物的氮化过程变为一步氮化还原反应。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。