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, althou...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.展开更多
文摘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.
