Systems Technology Report, ICI Europa

S F Bush with D Pauwels.

Summary

The MDI Flowpack I model exists in 2 versions – one relevant to the M2 plant at Rozenburg, the other relevant to the loop reactor modification of the M1 plant at Burnhall. These models are operational at Rozenburg and Runcorn.

Flowpack II equivalents of both versions have been constructed. The loop reactor M1 version works well, but problems still remain with the Flowpack II version of the standard M2 plant. These problems centre on the representation of multiphase R1 and its associated temperature control. Temperature control cannot be represented in the same way as in Flowpack I, owing to the absence at the time of writing of a specific temperature actuated flow control subroutine in Flowpack II. Results for all cases tried are summarised in this report, together with recommendations for use and improvement.