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In this paper, nonlinear feedback control of a distributed process is considered by using robust right coprime factorization approach. The distributed process model is developed. The model includes a water level process model of single tank and a water flow process model for twin-tank. Then, robust right coprime factorization based nonlinear control is proposed for the distributed process consisting of the water level process and the water flow process. Furthermore, from the industrial application viewpoint, CENTUM CS3000 based implementation issues of robust right coprime factorization operators are investigated. Finally, the experimental results are given to show the effectiveness of the proposed approach.