Application of Computer Control to the Production of Synthetic Resins

Abstract

The work reported in this thesis was performed as part of a Teaching Company Scheme organised between BIP Chemicals Limited and the University of Aston. The overall aim of the Scheme was to maximise the efficiency and economics of the batch processes used for synthetic resin manufacture. This investigation covers the development of a computer control strategy to be used in the batchwise production of synthetic resins within the overall aim. The measurement of composition of a recovered solvent feed was investigated to identify a way of monitoring the composition for use in control. This objective could be achieved using a dual analyser system comprising an Ultra-Violet analyser and density meter. Trials were made of a viscometer to provide on-line information about the reaction's progress during full scale production. A computer control strategy was developed based on the control parameters of reaction temperature, mass of aqueous distillate removed and time. An experimental computer was connected to the instrumentation of a full scale production reactor. The control strategy was implemented using the computer with suitably structured control software. Trials were carried out under production conditions to confirm the strategy and its implementation.