Enhanced carbon dioxide capture performance of natural mineral vermiculite‐derived lithium silicate with Na doping

Yinji Wan, Ying Liu, Ruobing Sun, Yuntian Du, Mengkai Xie, Gang Qian, Zhisong Liu, Minmin Liu, Jianming Dan and Feng Yu

Greenhouse Gases: Science and Technology, 2022, vol. 12, issue 2, 263-272

Abstract: Natural clay mineral‐derived functional materials have attracted considerable attention worldwide. Herein, natural mineral vermiculite (VMT)‐derived lithium silicate (VMT‐based Li4SiO4) materials with different molar ratios of Na to Si were prepared for the high‐temperature CO2 capture. Among developed adsorbents, the VMT‐Li4SiO4‐2Na materials displayed superior CO2 adsorption ability with 0.28 g/gadsorbent adsorption rate after 5 min and 33.67 wt% capture capacity at 650°C. The experimental investigations uncovered the presence of Li3NaSiO4 or/and eutectic Li2CO3‐Na2CO3 molten salt resulting from the introduction of Na2CO3, which resulted in higher CO2 uptake. Furthermore, the cyclic carbonation–decarbonation experiment of VMT‐Li4SiO4‐2Na showed better stability when the O2 was used to perform the decarbonation step. We believe that the Na modified‐VMT‐based Li4SiO4 adsorbent shows potential for practical applications in peak carbon dioxide emissions and carbon neutralization. © 2022 Society of Chemical Industry and John Wiley & Sons, Ltd.

Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://doi.org/10.1002/ghg.2142

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wly:greenh:v:12:y:2022:i:2:p:263-272

Access Statistics for this article

More articles in Greenhouse Gases: Science and Technology from Blackwell Publishing
Bibliographic data for series maintained by Wiley Content Delivery ().