Comprehensive mass transfer and reaction kinetics studies of CO2 absorption into aqueous solutions of blended MDEA–MEA

Sema, Teerawat; Naami, Abdulaziz; Fu, Kaiyun; Edali, Mohamed; Liu, Helei; Shi, Huancong; Liang, Zhiwu; Idem, Raphael; Tontiwachwuthikul, Paitoon

doi:10.1016/j.cej.2012.08.016

Cited by 143 publications

(53 citation statements)

References 48 publications

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“…Tests using laminar jets [7] or falling films [9] emphasise millisecond timescales and uniformity of bounding concentration at the interface and depths of the liquid, while the liquid layer diffusion scales are seconds and compositions vary significantly along the contacting. The rotating spiral avoids these shortcomings.…”

Section: Introductionmentioning

confidence: 99%

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CO2 absorption using diethanolamine-water solutions in a rotating spiral contactor

MacInnes

Ayash

Dowson

2017

Chemical Engineering Journal

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Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/) eprints@whiterose.ac.uk https://eprints.whiterose.ac.uk/ Reuse Unless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Section: Introductionmentioning

confidence: 99%

“…Each aimine was tested at a single common temperature and composition. Increasingly, work is considering a few targeted amines over a range of composition and including blends of amines (Ma'mun et al [6], Sema et al [7], Richner et al [8], Conway et al [9] and Lv et al [10]). …”

Section: Introductionmentioning

confidence: 99%

CO2 absorption using diethanolamine-water solutions in a rotating spiral contactor

MacInnes

Ayash

Dowson

2017

Chemical Engineering Journal

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“…The principle of such an aqueous blend with a tertiary amine is based on the relatively high rate of reaction of CO 2 with the reactive alkanolamine combined with the low heat of reaction of CO 2 with the tertiary alkanolamine, which leads to higher rates of absorption in the absorber column 10 . Blended MDEA/MEA solutions have been widely investigated for several years 2,11,12,13 . MDEA promoted piperazine (MDEA / PZ) has been used commercially and was patented by BASF to remove CO 2 in ammonia plants 14 .…”

Section: Introductionmentioning

confidence: 99%

Molecular dynamic simulation of CO2 absorption into mixed aqueous solutions MDEA/PZ

Harun

Masiren

2017

Chem. Eng. Res. Bull.

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Abstract:The mixture of amine absorption process is an approach for mitigation of carbon dioxide (CO 2 ) from flue gas that produces from power plant. Several experimental and simulation studies have been undertaken to understand this process but the mechanism of CO 2 absorption into the aqueous blended amines such as MDEA/PZ is not well understood and available knowledge within the open literature is limited. The aim of this study is to investigate the intermolecular interaction of the blended MDEA/PZ using Molecular Dynamics (MD) simulation. MD simulation was run under condition 313 K and 1 atm. The thermodynamic ensemble used were 200 ps for NVE and 1 ns for NVT. The periodic boundary is used to visualize the interaction of molecules of the whole system. The simulation method also involved calculation of force field and time integration algorithm.The results were interpreted in terms of Radial Distribution Function (RDF) analysis. It was observed that the hydroxyl group (-OH) of MDEA is more attracted to water molecule compared to amino group (-NH) of MDEA. The intermolecular interaction probability of -OH and -NH group of MDEA with CO 2 in blended MDEA/PZ is higher than using pure MDEA. This finding shows that PZ molecule act as an activator to promote the intermolecular interaction between MDEA and CO 2 .Thus, blend of MDEA with PZ is expecting to increase the absorption rate of CO 2 and reduce the heat regeneration requirement.

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“…At present, the most widely utilized technique for CO 2 removal is CO 2 absorption by alkanolamine-base d chemical solvents. Examples of the alkanolamines in gas treatment processes are monoethanol amine (MEA) [1][2][3][4][5], diethanolam ine (DEA) [6], and activated methyldi ethanolamine [7][8][9][10], etc.…”

Section: Introductionmentioning

confidence: 99%

Process analysis on CO2 absorption by monoethanolamine solutions in microchannel reactors

Dang

Yao

et al. 2013

Chemical Engineering Journal

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Comprehensive mass transfer and reaction kinetics studies of CO2 absorption into aqueous solutions of blended MDEA–MEA

Cited by 143 publications

References 48 publications

CO2 absorption using diethanolamine-water solutions in a rotating spiral contactor

CO2 absorption using diethanolamine-water solutions in a rotating spiral contactor

Molecular dynamic simulation of CO2 absorption into mixed aqueous solutions MDEA/PZ

Process analysis on CO2 absorption by monoethanolamine solutions in microchannel reactors

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