- 1. Set up of a daily control routine of the explosibility in the reactor head of both reactors. - 2. installation of a system for the detection of leaks at the flanges of the reactors, through temperature measurement in the flanges, with an alarm system and a register (regulation device). - 3. Setting of the release value (set point) of the temperature (thermal) alarm of the cooling water of the reactor head (exit) at 5C higher than normal operation temperature (45C). Before this change it was set at 70C, after the change it has been set at 50C. - 4. Replacement of the bolts in both reactors according to (in conformance to) the specifications of the project. - 5. Prohibition of any tightening operation of the bolts in case of leakage in the flanges of the reactor during stable (normal) process (production) conditions. The reactor must be shut-down immediately in case of leakage. - 6. Process maintenance of the burner (combustion chamber), usually an inspection is foreseen every 3000 hrs (hours) of operation and always after scheduled and/or not scheduled shut-downs, allowing to clean the lance and of the burner (combustion chamber). - 7. Explosibility measurements every single hour in the reactor heads the first 12 h. (twelve hours) after start-up of the reactors. - 8. Control (audit) of the storage conditions of the joints - 9. Set up of a remote temperature monitoring (control) system at each of the 32 probe points of the reactor, controlled remotely from the control room. - 10. Setting of the of the alarm value (threshold) in the 32 points of the reactor dome at 240C, instead of the previous 300C. - 11. Connection of this alarm (system) to the data-logger - 12. Set up of a verification (control) procedure of all temperature detection (measurement) points located externally to the reactor, including tests (check-up procedures) during the start-up process of the reactor.