ie9b06897_si_001.pdf (529.73 kB)
CO2 Separation Performance of Zeolitic Imidazolate Framework‑8 Porous Slurry in a Pilot-Scale Packed Tower
journal contribution
posted on 2020-03-13, 15:30 authored by Hai Li, Bei Liu, Mingke Yang, Ding Zhu, Zixuan Huang, Wan Chen, Lanying Yang, Guangjin ChenIn
this work, the mixed porous liquid–solid made of zeolitic
imidazolate framework-8 (ZIF-8), 2-methylimidazole (mIm), glycol,
and water was first used in a pilot-scale packed system for CO2 capture. The separation performance and equivalent work were
investigated systematically. The experimental results show that CO2 removal ratio could reach 90% when the gas-slurry ratio was
fixed at 100. The CO2 capture equivalent work of ZIF-8
slurry was 0.61–0.85 GJ/t, which was 57–80% of that
of MEA solution. After prolonged running times, no choke happened
in the packed tower and CO2 capture ability of the ZIF-8
slurry kept stable. In addition, Dixon-ring random packing showed
no signs of corrosion after four month cumulative experiments, which
means that ZIF-8 slurry can be applied in the packed tower for gas
separation in the pilot scale.