
Industrial & Engineering Chemistry Research, Год журнала: 2025, Номер 64(10), С. 5269 - 5279
Опубликована: Фев. 27, 2025
This work investigates the behavior of dolomites during sorption-enhanced gasification in dual interconnected fluidized bed systems for production H2-rich syngas. Two sorbents, one Italian origin, other Polish with CaO content ranging from 60 to 63 wt %, and MgO around 32-33 were subjected calcination/carbonation cycles (10 each test) a lab-scale apparatus. In particular, temperature carbonation stage was varied between 600 700 °C, both absence presence water vapor. With an eye role operating conditions, material, following aspects investigated: CO2 capture capacity, fragmentation tendency, elutriation phenomena upon surface wear. The discussion then extended by recalling previous results obtained on set 6 limestones (rich Ca) under same conditions through comparison analysis versus limestones. it observed that steam is capable positively influencing dolomite terms capture; rate markedly more relevant calcination than carbonation, negatively affected steam, less extensive sorbents showing higher capture. Normalizing content, performance comparable limestones, although have fragile structure increases their tendency undergo fragmentation.
Язык: Английский