Sensitivity Analysis of Carbonate Looping Process Using Twin Fluidized Bed Model

Xuan Yang ； Yishu Qiao ； Xiangyang Han ； Bingcheng Liu ； Kinjal J. Shah ； Pen-Chi Chiang

《Aerosol and Air Quality Research》 20卷12期 (2020/12) Pp. 2889-2900

https://doi.org/10.4209/aaqr.2020.07.0436

摘要

CO_2 as the major greenhouse gas plays an important role in environmental problems. Therefore, it is reasonable to find an effective technology for mitigating large CO_2 emissions. Carbonating looping is an efficient post-combustion CO_2 capture technology using limestone sorbent, which is more energy-saving than traditional technologies. In our research, a carbonate looping process model had been developed using ASPEN PLUS software. In detail, the sensitivity analysis of main parameters were adopted. The simulation results indicated that the CO_2 capture rate of the whole process can achieve above 90% and CO_2 concentration in the decarbonated flue gas was less than 4% under the carbonation temperature, the calcination temperature, the F_0/F_(CO2) and the gas-solid separation were 630°C, 900°C, 0.04, 1.0, separately. This work gave an potential example for the retrofitting current coal-fired power plant combined with carbonate looping process.

關鍵字

CO_2 capture ； Carbonate looping ； Process model ； Twin Fluidized bed ； Sensitivity analysis