Design of an upgrading process for biomethane production with Genosorb 1753

This thesis project, carried out in the well-established Pietro Fiorentini S.p.a., is focused on the design of an upgrading system with Genosorb 1753. This solvent can be used for the selective absorption of the carbon dioxide present in biogas into the liquid solvent for the production of biomethane. The solvent rich in carbon dioxide is regenerated firstly with a flash unit and then with a stripping process using air, the cleaned solvent can be recycled in the main column. Since Genosorb 1753 is a new solvent, there is little information in database therefore it has been necessary to incorporate physical and chemical properties in simulation software such as COFE and Aspen Plus starting from experimental data provided by the vendor, Clariant. After the design of the upgrading process, techno-economical considerations with CAPEX and OPEX calculations have been performed to assess the best configuration for the system. For the validation of the process with Genosorb 1753 a comparison with a similar process, the water scrubber upgrading process, has been performed considering a previous study carried out with Aspen Plus simulator.