| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Alumina & Bauxite
|
| Presentation Title |
Steam Grid Stability using Advanced Process Control and Real Time Optimization in an Alumina Refinery |
| Author(s) |
Rodrigo Vieira Neves, Fernando Melo, Danilo Arcodaci, Daniella Costa, Joćo Freitas, Ediciano Junior, Juvenal Sousa |
| On-Site Speaker (Planned) |
Fernando Melo |
| Abstract Scope |
The Hydro Alunorte refinery has a complex steam system composed by boilers and generation turbines that use three types of fuel (heavy oil, coal and electrical energy) to produce steam for the Bayer process. Due to the complex nature of the refinery and the variable price of fuels, two programs integrated directly with the plant Distributed Control System (DCS), aims to improve energy efficiency and steam system stability, reduce greenhouse gas (GHG) emission and avoid cascade plant shutdowns. Advanced Process Control (APC) controls boilers load, steam headers pressure and minimize relief valves opening. Real Time Optimization (RTO) is above APC and is responsible for give the best configuration to steam matrix based on fuels price. This paper will describe how both programs can help steam grid to be stable and financially better to the refinery. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Process Technology, Other, Other |