Durability characteristics of the hydration of magnesium oxide under repetitive reaction
Durability characteristics of the hydration of magnesium oxide under repetitive reaction
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DOI：
10.1023/a:1004530309298
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发表时间：
1999-02-01
影响因子：
4.5
通讯作者：
Yoshizawa, Y
中科院分区：
文献类型：
--
作者：
Kato, Y;Nakahata, J;Yoshizawa, Y
为了验证氧化镁/水化学热泵的可操作性，对氧化镁/水反应体系在重复反应条件下的耐久性进行了实验研究。在90-170摄氏度的水合温度和31.2-70的压力下，测量了重复反应中最敏感的过程-氧化镁水合反应的反应性变化。1千帕。较低的水合反应温度和较高的水合反应压力有利于保持反应活性。讨论了重复循环中经历的不同反应条件对标准重复循环的影响。从微观上看，重复反应过程中结构变化引起的材料一次粒子形核是提高耐久性的重要因素。(C)1999年克鲁沃学术出版社。
The durability of the magnesium oxide/water reaction system under repetitive reaction conditions was examined experimentally to demonstrate the operability of a magnesium oxide/water chemical heat pump. Changes in the reactivity in the hydration of magnesium oxide, which was the most sensitive process in the repetitive reaction, were measured at hydration temperatures from 90-170 degrees C and pressures from 31.2-70. 1 kPa. A lower temperature and a higher pressure for the hydration reaction were effective in maintaining reactivity. The effect of different reaction conditions experienced during repetitive cycles to the standard repetitive cycle was discussed. From microscopic observations, nucleation in primary particles of the material induced by the structure change during repetitive reaction was an important factor in the enhancement of durability. (C) 1999 Kluwer Academic Publishers.