摘要
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.
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.
出处
《催化学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第5期561-564,共4页
基金
国家自然科学基金
浙江省青年科技人才专项资金
浙江省自然科学基金
关键词
氮合成
催化剂
氧化铁
维氏体
合成氨
A301
ammonia synthesis catalyst, iron oxide, wüstite, anti poisoning, heat resistance, stability
