This is a process dynamic and control project. It was about CCM Chemical plant. There were problems with the existing control systems of the hydrochloric units, where the difficulty was to maintain the process variables at the desired operating conditions. The specific problem was inconsistencies in the online measurement of the product. During the operation, there was a problem in balancing the hydrogen demand with the amount available so that an excess was always available to be vented. I and my team solved this problem by modifying the existing control system.