endothermic reaction

The enthalpy-change coating consists of some matters as a base material causing endothermic reaction at a certain temperature range, which acts as iron chill when placed on a mold or core surface.

焓变涂料是以在一定的温度区间内可发生吸热化学反应的物质为基料配制的，将其涂在砂型（芯）表面，可代替常规冷铁。

Results show that the adsorption is an endothermic reaction, which ion exchange is responsible largely for the removal of phosphate.

结果表明：该吸附过程为吸热吸附，它主要是以离子交换形式进行的。

Carbon dioxide reforming of methane to syngas caused widespread concern in the industry over the world. However, this reaction is strong endothermic reaction, huge energy consumption and easy to cause carbon deposition.

近年来甲烷二氧化碳重整制合成气引起全世界和产业界的广泛关注，但该反应是强吸热反应，能耗大并且催化剂易于积炭，因此该工艺过程亦难得到工业应用。

It was main causes that heat energy released by Ti-C-N2 exothermic reaction during milling or subsequent heat treatment promoted TiO2 CRN endothermic reaction.

主要原因为Ti-C-N2系反应是强放热反应，在球磨或后续热处理中，该反应放出的热量会加速TiO2碳热氮化吸热反应的进行。

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 absorption process is a spontaneous endothermic reaction. Accordingly, adequate drop of bed temperature is helpful for the absorption.

吸附过程是自发进行的吸热反应，适当降低床层温度有利于吸附过程。

The result shows that the preparation of 99mTc-MIBI exhibits a endothermic reaction. The reaction heat(△ H) was equal to 339.2 kJ/ mol.

结果表明，~（99m）Tc MIBI的制备反应为吸热反应，反应热ΔH为339.2kJ/mol，升高反应温度时，~（99m）Tc MIBI的标记率也提高。

The thermodynamic study showed that, Ash-PT adsorption processes were spontaneous endothermic reaction, and elevated temperatures were conducive to the adsorption process.

热力学研究表明，Ash-PT吸附过程为自发进行的吸热反应，升高温度有利于吸附过程的进行。

Endothermic hydrocarbon fuels ( EHF) can provide sufficient heat sink for hypersonic scramjet cooling, the total hint sink of EHF come from the physical heating of the fuel and endothermic chemical reaction.

吸热型烃类燃料是一种热安定性好、可以利用其化学热沉的燃料，其热沉能够满足高超音速飞行的需要。

With the catalyst, the diesel fuel exhaust gas reforming reaction is endothermic, steam reforming reaction and water gas shift reaction are main reaction; partial oxidation reaction is secondary.

没有催化剂时，柴油废气重整反应是吸热反应，水蒸汽重整反应和水煤气反应是主要反应，氧化反应是次要反应。

Although the reaction is endothermic, the main reaction has been almost completed at this time, so the temperature will decrease slowly in the upper part.

在中上部，虽然反应吸热，但此时的主要反应已基本完成，因而温度下降缓慢。

Numerous studies have been published on the endothermic fuels, which included the choice of fuels, the types of endothermic reaction, the improvement of fuels performance and test of fuels on practical aircraft.

吸热燃料的研究主要包括：燃料的筛选、制备、吸热过程的研究、燃料性能的研究及改进和燃料在实际飞行器上的测试等。

The thermodynamic functions of the binding reaction were measured, giving that the TU-BSA binding is an endothermic reaction that accompanies entropy increase.

由推算出的热力学常数可知两者结合是吸热反应，结合过程伴随着熵的增加。

Moreover, K_ ( 4D) increase along with the increases of temperature and molecular pressure ( endothermic reaction).

此外，K（4D）随着泡温和分子气体压力的增加而增加（吸热反应）。

A layer of nickel catalyst was provided to promote the endothermic reaction of steam and methane.

底层镍催化剂促进蒸汽和甲烷的吸热反应.

The Cr(ⅵ) adsorption capacity with MPS increased as the temperature increases, which indicates that the adsorption process was endothermic reaction.

MPS对Cr（Ⅵ）的吸附量随着温度的上升而提高，吸附过程是吸热反应。

The second one is the endothermic reaction, the reaction energy is 21.511KJ/Mol.

第二个反应为放热反应，生成ClOCl和NO2放出的热量为21.511KJ/Mol；

The pyrolysis reaction an endothermic reaction and yields flammable gases, while the fuel oxidation is exothermic.

前者是吸热反应,释放可燃气体, 后者是放热反应,提供阴燃所需的能量.

A new method involved in waste heat recovery of high temperature gas, using waste heat as the heat source of an endothermic reaction so as to transfer physical exergy of the waste heat into chemical exergy of the reaction products, was presented in this paper.

提出了一种新的高温气体余热回收方法-利用余热作为吸热化学反应的热源，使余热物理转化为反应产物所增加的化学。

Catalytic cracking is a primary approach for the endothermic reaction, however, coke formation during cracking is a primary obstacle.

催化裂解是实现吸热反应的主要途径，而催化裂解结焦成为超高音速飞行器应用吸热型碳氢燃料的主要障碍。

The catalytic cracking of hydrocarbons to olefins is an endothermic reaction, and their oxidation is exothermic.

烃类催化裂解反应是强吸热过程，而金属氧化物和烃类的氧化反应是放热反应。

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。

Selectcracking is a highly endothermic reaction process.

柴油非临氢降凝是强吸热反应过程。

The suggested Process is based on the principle of endothermic reaction of the vaporization-cooled flue gas.

本文对干熄焦工艺提出一种设想，即采用汽化冷却与气体介质产生化学反应吸热相结合的方法。

The excellent effect of the thermal insulation and fire resistant of the composites was mainly attributed to endothermic reaction.

其良好的高温绝热效果主要归因于吸热反应；

The pyrolysis reaction is an endothermic reaction and yields flammable gases, while the fuel oxidation is exothermic.

前者是吸热反应，释放可燃气体，后者是放热反应，提供阴燃所需的能量。

The exchange reaction was an endothermic and spontaneous reaction as the temperature increased.

结论药物与树脂的交换过程主要受树脂粒径和反应温度的影响，而且该离子交换反应是吸热反应，即升高温度有助于反应正向自发进行。

The decrease of the burning rate and flame temperature by adding energetic additive PQ is due to the reduction of energy level of the propellant and the decrease of the chemical reaction rate by the endothermic melting of PQ.

含能添加剂PQ降低燃速、燃温的原因是加入PQ后，推进剂的能量水平下降以及PQ在分解时的熔化吸热降低了化学反应速率。