Issue 13, 2020

Dry hydrated potassium carbonate for effective CO2 capture

Abstract

Dry hydrated potassium carbonate (DHPC) is a free-flowing powder prepared by uniformly mixing hydrated K2CO3 and hydrophobic nanosilica. We demonstrated that DHPCs can absorb CO2 rapidly because of their high surface-to-volume ratio. Their CO2 capture performance is superior to that of 30 wt% monoethanolamine (MEA), an industry standard. DHPC-75 (containing 75 wt% K2CO3) has a CO2 uptake capacity of 233 mg g−1 (90% saturation uptake within 13 min), higher than the widely used 30 wt% MEA aqueous solution (111 mg g−1, 90% saturation uptake within 25 min). DHPC-75 also exhibits an excellent cycling performance, thus becoming a promising candidate for practical application.

Graphical abstract: Dry hydrated potassium carbonate for effective CO2 capture

Article information

Article type
Paper
Submitted
08 May 2019
Accepted
30 Jun 2019
First published
01 Jul 2019

Dalton Trans., 2020,49, 3965-3969

Dry hydrated potassium carbonate for effective CO2 capture

S. Wang, Z. Liu, A. T. Smith, Y. Zeng, L. Sun and W. Wang, Dalton Trans., 2020, 49, 3965 DOI: 10.1039/C9DT01909J

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements