Solid Circulation Study in a 1.5 MW_th Cold Flow Model of Chemical Looping Combustion

Solid circulation in chemical looping combustion (CLC) is very important and affects the mass heat balance autothermal operation of a CLC system. A key task developing technology to control solid circulation. In this work, characteristic 1.5 MWₜₕ cold flow model reported. The between fuel reactor simplified air riser controlled by overflow method. Three kinds quartz sands are selected as fluidized particles, their median particle diameters 392, 249, 122 μm, respectively. reasonable pressure profile obtained model. effects operational parameters, including gas velocity, loop seal size, static bed height, on hydrodynamic characteristics measured analyzed. maximum rate can approach 130 kg/(m²·s), value satisfies requirements height should be higher than port prevent it from becoming constraint factor rate. An developed predict rate, relative errors predicted result experimental data within 25%.