Dynamic Modelling of a Steam Reformer and the Implementation of Feedforward/Feedback Control

Abstract

A simplified theoretical model for the dynamics of a side-fired steam reformer is derived. Experimental work, designed to confirm the theoretical model, is described, and the use of the results in the design of a feed-forward/feedback control scheme for throughput changes is discussed. This scheme, implemented on an on-line computer, enables large throughput changes to be made with a minimum of disturbance to the plant and a minimum of effort by the plant operators. Results from a typical throughput change are presented.