Enhancement Of CO2 Capture Performance Of Aqueous MEA By ...

Jump to main content Jump to site search Issue 4, 2018

• Previous Article
• Next Article

From the journal:

RSC Advances

Enhancement of CO2 capture performance of aqueous MEA by mixing with [NH2e-mim][BF4]

Mei Wang, *a Mingming Wang,a Na Rao,a Jiale Lia and Jianfen Li*a Author affiliations

* Corresponding authors

a School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei 430023, PR China E-mail: wangmei0223@hotmail.com, lijfen@163.com Tel: +86 27 83963954

Abstract

Alcohol amine solutions have a high absorption capacity and rate for CO2 capture, however, there are some shortcomings such as high energy-consumption and low stability. To enhance CO2 capture performance of aqueous MEA, a functional ionic liquid ([NH2e-mim][BF4]) was introduced based on the advantages for CO2 capture. Absorbents were prepared with the molar concentration ratio of [NH2e-mim][BF4] to the 30 vol% aqueous MEA of 0 : 10, 1 : 9, 2 : 8, 3 : 7, 4 : 6 and 6 : 4. The density and the viscosity of the investigated absorbents were measured and the effects of the molar fraction of [NH2e-mim][BF4] (nI) and temperature on CO2 absorption performance were investigated. CO2 desorption performance of the solvent at different temperatures was discussed. The stability performance of the absorbent with nI of 2 : 8 (I/M2:8) was examined by five consecutive cyclic tests. The results showed that for pure CO2, the I/M2:8 displayed the highest absorption performance at 303 K under 1 bar: a comparable CO2 absorption capacity of the 30 vol% aqueous MEA and a higher CO2 absorption rate at the later absorption stage. Moreover, with the increase of temperature, CO2 absorption capacity and rate decreased, while CO2 desorption efficiency and rate increased. 393 K was chosen as the optimum desorption temperature with the desorption efficiency of 99.31%. The introducing of IL contributed to CO2 desorption performance of the absorbents significantly. The properties (CO2 absorption capacity, mass loss, density and viscosity) of the I/M2:8 during the cycles suggested that the IL-MEA mixture had an excellent stability performance.

This article is Open Access Please wait while we load your content... Something went wrong. Try again? About Cited by Related Download options Please wait...

Article information

DOI https://doi.org/10.1039/C7RA11757D Article type Paper Submitted 25 Oct 2017 Accepted 12 Dec 2017 First published 10 Jan 2018 This article is Open Access

Download Citation

RSC Adv., 2018,8, 1987-1992 BibTex EndNote MEDLINE ProCite ReferenceManager RefWorks RIS

Permissions

Request permissions

Enhancement of CO2 capture performance of aqueous MEA by mixing with [NH2e-mim][BF4]

M. Wang, M. Wang, N. Rao, J. Li and J. Li, RSC Adv., 2018, 8, 1987 DOI: 10.1039/C7RA11757D

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

Read more about how to correctly acknowledge RSC content.

Social activity

Tweet Share

Search articles by author

Mei Wang Mingming Wang Na Rao Jiale Li Jianfen Li

Fetching data from CrossRef. This may take some time to load.

Loading related content

Spotlight

Advertisements

This website collects cookies to deliver a better user experience. See how this site uses Cookies. Do not sell my personal data. Este site coleta cookies para oferecer uma melhor experiência ao usuário. Veja como este site usa Cookies. Publishing

Journals

• Current Journals
• Archive Journals
• All Journals

Books

• Browse Books
• Series
• For Authors and Editors
• About

Databases

• Literature Updates
• ChemSpider
• The Merck Index*
• MarinLit

More

• For Members
• For Librarians
• Subscribe
• RSS Feeds
• Blogs
• Chemistry World
• Education in Chemistry
• Open Access
• Historical Collection