The article describes the testing of four selected samples of limestone originating from four commercially exploited deposits. The tests of sorbents included a physicochemical analysis and calcination in different atmospheres. The main aim of the tests was to determine the possibilities for using limestone during combustion in oxygen-enriched atmospheres. Tests in a synthetic flue gas composition make it possible to assess the possibility of CaCO3 decomposition in atmospheres with an increased CO2 concentration.

Crossing borders: between literature and science – Italian culture of the twentieth and twenty-first centuries has offered significant examples of renewal through crossing boundaries between different disciplines. Several writers (Levi, Calvino, Gadda, Sinisgalli, Del Giudice, Giordano, Arpaia, Odifreddi) have overcome the dichotomy between the two cultures that was denounced by Charles Snow in 1959. Sixty years after the famous essay by Snow, the paper will show several examples of connections between literature and science, by using the concept of the “four frontier customs”: “the transit”, “the trespass”, “the alliance”, and “the conflict”.