PEMEX Refinery has decided to instal a new ABB distributed control system in the Ing. Héctor R. Lara refinery at Cadereyta, Nuevo Leon, Mexico in order to upgrade the control system of sulphur recovery plants 3 and 4.
At the same time, PEMEX-Refining has chosen to retain the ADEX system which has been optimising the plants up until now. As a result, ADEX will be integrated into the new ABB DCS system during the planned shutdown.