| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Alumina & Bauxite
|
| Presentation Title |
Reduction of GHG Emissions and Increase Operational Reliability using Immersed Electrode Boiler in an Alumina Refinery |
| Author(s) |
Rodrigo Vieira Neves, Fernando Melo, Everton Mendonça, Erinaldo Filho, Jeferson Carneiro |
| On-Site Speaker (Planned) |
Erinaldo Filho |
| Abstract Scope |
The Hydro Alunorte refinery, located in Pará – Brazil, uses heavy oil, mineral coal and electrical energy boilers in its energy matrix to meet the steam demand of the Bayer process. Aligned with Hydro's environmental strategy to reduce greenhouse gas (GHG) emissions, Hydro Alunorte started operating the first electric boiler with immersed electrode technology as one of the initiatives to increase the share of electricity in the steam generation energy matrix. The new immersed electrode boiler has higher operational reliability with an availability of approximately 99.5% and with load control by adjusting the level of the electrode chamber, thus loads variation can be done in minutes to control the consumption demand of the refinery. Therefore, it is expected to reduce fuel oil consumption consequently reducing CO2 emissions by approximately 150,000 tons per year. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Sustainability, Environmental Effects, Process Technology |