题目6单选题
在合成氨生产时对原料气循环使用,实际操作时,每隔一定时间要将循环气放空, 其主要目的是( )A. 减少<img src="https://tihai-oss-cloud.itihey.com/img/54dc6fd699e1a917ef1d0365cf11f3d9.webp">含量,有利于反应向合成<img src="https://tihai-oss-cloud.itihey.com/img/58f412a11263d4ed9098d5714eb97336.webp">的方向移动B. 降低累积惰性气含量,有利于合成<img src="https://tihai-oss-cloud.itihey.com/img/58f412a11263d4ed9098d5714eb97336.webp">C. 排除过量的<img src="https://tihai-oss-cloud.itihey.com/img/53b9a9bf1ecb92849760971f76aec154.webp">,以提高<img src="https://tihai-oss-cloud.itihey.com/img/c0eaaa008a8f326c67e4defbbe57296f.webp">:<img src="https://tihai-oss-cloud.itihey.com/img/10ea6263c619c769d966f70e7986babb.webp">的比例D. 减少反应放热的热量积累,以降低温度