关键词 : 制氮工艺 ; 深冷分离 ; PSA 变压吸附 ; 膜分离 [gap=672]Key words: ammonia producing process; cryogenic separation; pressure shift adsorption ( PSA) ; membrane separation ..
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In the process of producing ammonia, we use cascade control method to make the catalyst hotspots temperature stable, so as to increase the quality of production.
在氨肥厂生产氨的过程中，引用串级控制方式来对合成塔触媒层的热点温度进行稳定控制，以提高生产质量。
The paper introduces the ammonia process of producing high-grade zinc oxide from impurities zinc oxide dust which produced by the smoked stoves in a large internal smelter.
本文介绍了利用氨法处理杂质成分复杂的某大型冶炼厂炼铅系统烟化炉氧化锌烟灰制备高等级氧化锌的工艺。
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