摘要
介绍在无切断阀等有效隔离手段情况下 ,为确保合成塔内还原态催化剂的安全 。
Presents for blowout plugging of fire tube boiler under N 2 atmosphere at the condition of no effective isolating means,such as isolating valve,in order to ensure the safety of the reduced state catalyst in the synthesis converter
出处
《大氮肥》
CAS
2003年第6期399-401,共3页
Large Scale Nitrogenous Fertilizer Industry
