The exothermal reaction of the iron sulfide in oil storage tanks was the main cause of self-ignition of the oil products. 油品储罐中硫化亚铁氧化放热是引起油品自燃的主要原因。
The instrument is used for hazardous exothermal reaction experiments. It records changes of temperature and pressure in reaction process, then the onset reaction temperature, the arrival time of maximum reaction rate and the kinetic information of reacting substances are analyzed by software. 该仪器可用于危险放热反应试验,记录反应过程中温度、压力的变化,再利用软件分析出反应物质的初始反应温度、到达最大反应速率的时间和动力学参数等。
Exothermal law in chlorination reaction of paraffin and problems existing in the old heat exchange design of reactor were discussed. Improvements against these problems were made, so the product quality were improved. 讨论了石蜡氯化反应的放热规律和原反应器换热设计中所存在的问题,以及针对这些问题所作的改进,提高了产品质量。
The hydroxylation of phenol to produce dihydric phenol is a rapid and strongly exothermal reaction, the activity of the complex-oxide catalyst decreased rapidly. 苯酚直接羟化制备苯二酚为液固相的强放热快反应,催化剂的活性衰减很快。
The DSC scans show that there are two separate exothermal peaks, both of which are proved to be the curing behavior of the reaction system. So it is suggested that the whole curing process proceeds in two stages. DSC扫描结果表明固化反应分两个阶段进行,对此两个阶段固化反应的机理进行了讨论。
Exothermal weld is a technological method to utilize the high heat from chemical exothermal reaction to finish welding and is widely used in construction of earthed system. 放热熔接(CADWELD)是利用放热化学反应产生的高热来完成熔接的一种工艺方法,在接地系统施工中得到了广泛地应用。
The calculated results showed that the three reactions were exothermal reaction in which one σ bond and one π bond broke, and the other two new σ bonds formed. 计算结果表明3个反应都是放热反应,反应中1个σ键和1个π键断裂,2个新的σ键生成;
Different loaded tungsten phosphide catalysts in-suit reduced reaction were exothermal reaction and initiation reaction temperature was high 610 ℃. 不同负载磷化钨催化剂还原反应均为放热反应,且发生还原反应生成活性组分磷化钨的最低温度大于610℃。
Finally, the operating conditions for the powders to remove the heat generated from the strong exothermal reaction are discussed. 讨论了用细颗粒移出强放热反应生成热的操作条件。
The change of adiabatic temperature was small during coupling isomerization with aromatization of hexene-1, because both reaction heats were counteracted each other, exothermal reaction for the former and endothermic reaction for the latter. 异构化为放热反应,而芳构化为吸热过程,通过该偶合反应可使反应的绝热温度变化幅度变小,使反应容易控制和操作。
Above 900 C, C reacts with remain Ti to form TiC triggered by the exothermal reaction of Ti and Al; 间的放热反应引发C和未反应完全的Ti反应生成TIC;
The auto-thermal reforming technique of methane is a new method to produce hydrogen. Its basic principle is to couple the exothermal partial oxidation reaction of methane and endothermic steam reforming reaction of methane in the reactor. The reaction system can provide heat itself. 甲烷自热重整工艺是一种新型制氢方法,其基本原理是在反应器中耦合了放热的甲烷部分氧化反应和强吸热的甲烷水蒸气重整反应,反应体系本身可实现自供热;
The results show that this reaction proceeds via two steps: ( 1) two reactant form a compound ( CM), which is an exothermal reaction of 9.77? kJ · mol~-1 without energy barrier. 结果表明,该反应途径由两步组成(1)两反应物首先生成一复合物(CM),它是一无势垒的放热反应,放出的能量为9.77kJ·mol-1;
The results show that the reactive cast-infiltration between the molten iron and the raw briquette could be effectively carried out due to the addition of combustion-supporting reagent ( 2Al+ 3CuO) into the feeble exothermal reaction system ( W+ C); 结果表明:在低放热反应体系(W+C)的压坯中添加高放热反应体系(2Al+3CuO)的助燃剂可以有效地促进反应铸渗的进行;
The results indicate that the decomposition of PET takes place two steps. The first step is the depolymerization of PET with exothermal reaction and the second step is the decomposition of PET with endothermal reaction. 结果表明,PET的分解分为两步,第一步是放热的PET解聚反应;第二步是吸热的PET分解反应。