The operationcycle of the catalyst used in conversion at low temperature is critical to the direct economic returns of the enterprises which produce synthetic ammonia.
中温变化催化剂运行的周期长短,是关系到合成氨生产企业直接经济效益的关键因素。
2
The preparation method has the advantages of simple operation, short production cycle, low cost and high raw material utilization ratio.
本发明中的制备方法操作简单,生产周期短,成本低,原料利用率高。
3
This paper makes the analysis emphatically on the low-cycleoperation of the Nanshe area, the old location of Taiyuan No.