The main aim of this system is to keep main vapor pressure stable when the bed layer temperature is within a limit.
该系统在床层温度不越限的情况下，以控制主蒸汽压力稳定为主要目标。
The time of sulfurization is shorter, the temperature of bed layer is stable, and the activity of catalyst is high, while it is used for the sulfurization of Co-Mo catalysts.
进行钴—钼系催化剂硫化，具有硫化时间短，床层温度平稳等特点，且催化剂可获更高活性。
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