The paper “Sulfur Synthesis by Auto-Catalytic Bisulfite Disproportionation for Solar Thermochemical Fuel Production: Experimental Investigation” has been published in “Processes”.
As part of the Sulphurreal project, a research team from ENEA, the Italian National Agency for New Technologies, Energy and Sustainable Economic Development, demonstrated sulphur-autocatalyzed bisulphite disproportionation as an effective route for converting captured SO₂ into solid sulphur within the Sulphurreal solar thermochemical cycle, achieving high conversion above 170 degrees Celsius.
Long-term and transportable solar-energy storage
Ammonium bisulphite also enabled 92 to 98 percent ammonia recovery using MgO or ZnO, supporting a closed-loop, low-pressure pathway for long-term and transportable solar-energy storage.
Disproportionation is one part of the Sulphurreal cycle. The Sulphurreal project demonstrates an innovative approach to storing concentrated solar energy in the form of solid elemental sulphur, which can then be released on demand.
“Processes” is an international, peer-reviewed, open-access journal that publishes research on processes and systems in the fields of chemistry, biology, materials, energy, environmental science, food, pharmaceuticals, manufacturing, automation and control, catalysis, separation, particle technology, and related engineering disciplines. The journal is published online twice a month by MDPI.
Read the full paper here: https://doi.org/10.3390/pr14121971