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讨论了合成氨过程中氢氮比控制的特点和方案 ,采用预测控制和PID相结合的控制方案 ,通过调节造气工段吹风段的回收时间来进行控制 ,达到了提高合成氨产量的目的
The characteristics and schemes of hydrogen and nitrogen ratio control in the process of ammonia synthesis are discussed. The control scheme based on predictive control and PID is adopted to control the recovery time of the blowing section in the gas-making section and achieve the goal of increasing the output of synthetic ammonia