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A301氨合成催化剂的稳定性
引用本文:李小年,岑亚青,刘化章.A301氨合成催化剂的稳定性[J].催化学报,1999,20(5):561-564.
作者姓名:李小年  岑亚青  刘化章
作者单位:浙江工业大学催化研究所,浙江省多相催化重点实验室,杭州,310014
基金项目:国家自然科学基金;29706022;
摘    要:合成氨工业是一个高能耗、高产值的产业,在化学工业中占有重要的地位.目前,合成氨工业的总趋势是朝着低(等)压、低能耗工艺方向发展,其核心技术之一是开发低(等)压、高活性的氨合成催化剂.七十年代以来国际上兴起了载钌催化剂的研究开发,目前已有工业化的报道1].

关 键 词:氨合成  合成氨  Fe  A301
收稿时间:1999-10-25

STABILITY OF A301 CATALYST FOR AMMONIA SYNTHESIS
LI Xiaonian,CEN Yaqing,LIU Huazhang.STABILITY OF A301 CATALYST FOR AMMONIA SYNTHESIS[J].Chinese Journal of Catalysis,1999,20(5):561-564.
Authors:LI Xiaonian  CEN Yaqing  LIU Huazhang
Abstract:A301 catalyst for ammonia synthesis with Fe 1- x O as precursor was promoted by Al 2O 3, K 2O, CaO and other metallic oxides. The precursor Fe 1- x O is stable in kinetics under the existence of the precursors, although it is unstable in thermodynamics below 843 K. The reduced A301 catalyst has good heat resistance. The activity can be recovered completely in case of short period poison by carbon monoxide, but can not be recovered when the catalyst is poisoned by sulphur and its compounds. The purification of synthesis gas, especially desulphurization and deoxidation, is a key to ensure the stable performance and NH 3 production capacity of A301 catalyst.
Keywords:
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