An innovative thermochemical cycle based on solid sulphur
SULPHURREAL demonstrates an innovative approach to the direct storage of concentrated solar energy in solid elemental sulphur. The basic idea is to use concentrated solar energy to cyclically drive a series of chemical reactions that interconvert sulphuric acid and sulphur.
SULPHURREAL aimed to demonstrate and validate a breakthrough approach for next generation, carbon-free, direct conversion of solar energy into chemicals storable for a virtually unlimited time, based on elemental sulphur produced and consumed on-demand via an integrated solar-aided thermochemical cycle. The concept is a combination of three major process steps, namely the H2SO4 decomposition, SO2 disproportionation and elemental sulphur combustion. The proposed combination integrates renewable energy sources (solar energy) with valorisation of non-CRM substances currently produced as industrial by-products from oil and gas (solid sulphur) and steel industries (Fe-containing slags) and industrial-scale chemicals production (sulphuric acid industry) in absolute accordance with a circular economy environment and industrial symbiosis.
RISE leads the work package with system integration, conducting life cycle assessment, and hazard and operability analysis (HAZOP) to provide input regarding environmental aspects and risks and safety in the development phase.
Project end date:
Energy storage
Sekundär områdes navigation:
Circular transition
Power production
Biobased circular processes
Photo:
Malin Grönborg