Pelletizing residuals and waste
| Reference number | |
| Coordinator | GreenIron H2 AB |
| Funding from Vinnova | SEK 300 000 |
| Project duration | June 2020 - April 2021 |
| Status | Completed |
| Venture | Innovative Startups |
| Call | Innovative Startups step 1 spring 2020 |
Important results from the project
** Denna text är maskinöversatt ** The goal of the project has been to develop optimal cold-bonded pelletizing recipes to reduce residual products and waste from the steel industry in GreenIron´s hydrogen-based process as efficiently as possible, and to increase GreenIron H2 ABs´s competence in achieving the best possible results for agglomeration strength. GreenIron´s process presupposes permeability in the batch, which is why it is necessary that the pellets do not break down during the process.
Expected long term effects
** Denna text är maskinöversatt ** Residual products with a distribution of very fine particles, medium-sized particles and large particles have proven to be most suitable for pelleting. In some cases, for example for certain oxidized scales, it has not been possible to obtain pellets with sufficient strength, probably due to a large content of large particles of high density, which have not been able to bind to other materials. For these materials, therefore, experiments with briquetting have been initiated to achieve the necessary strength.
Approach and implementation
** Denna text är maskinöversatt ** The GreenIron process requires that the material being charged is agglomerated. Luleå Tekniska Universitet has pelletized residual products that GreenIrons has received from partners in the steel industry. Pellets from a number of recipes have been delivered to GreenIron for testing during the project. For materials with an unsuitable particle size distribution for pelleting, briquettes have also been developed. In the limited study that has been carried out, no material mixtures have been studied, which would be very interesting to perform.