Abstract

As a typical multivariable system, ammonia synthesis process is a very complicated system and these variables are connected seriously. Traditional control forms like PID are very difficult to realize its ideal control performance. This paper discusses the application of the plant-wide advanced process control and control strategy design for complete chemical plants. Six MVC controllers have been designed for the ammonia synthesis process. The necessity and feasibility of the control system building are analysed. The final industrial application result in good control performance and economic benefit.

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