Research Trends of Carbon Dioxide Capture using Ionic Liquids and Aqueous Amine-Ionic Liquids Mixtures

Anthropogenic CO2 emissions has led to global climate change and widely contributed to global warming since its concentration has been increasing over time. It has attracted vast attention worldwide. Currently, the different CO2 capture technologies available include absorption, solid adsorption and membrane separation. Chemical absorption technology is regarded as the most mature technology and is commercially used in the industry. However, the key challenge is to find the most efficient solvent in capturing CO2. This paper reviews several types of CO2 capture technologies and the various factors influencing the CO2 absorption process, resulting in the development of a novel solvent for CO2 capture.

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An absorption mechanism and polarity-induced viscosity model for CO2 capture using hydroxypyridine-based ionic liquids

Physical Chemistry Chemical Physics ◽

10.1039/c6cp07209g ◽

2017 ◽

Vol 19 (2) ◽

pp. 1134-1142 ◽

Cited By ~ 12

Author(s):

Xiaowei An ◽

Xiao Du ◽

Donghong Duan ◽

Lijuan Shi ◽

Xiaogang Hao ◽

...

Keyword(s):

Ionic Liquids ◽

Co2 Capture ◽

Viscosity Model ◽

Absorption Mechanism ◽

Chemical Absorption

A series of new hydroxypyridine-based ionic liquids (ILs) are synthesized and applied in CO2 capture through chemical absorption.

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Current Research Trends in CO2 Capture using Ionic Liquids

Carbon Capture and Storage ◽

10.1201/b16845-15 ◽

2014 ◽

pp. 308-309

Keyword(s):

Ionic Liquids ◽

Co2 Capture ◽

Research Trends

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Steel Industries in Japan Achieve Most Efficient Energy Cut - off Chemical Absorption Process for Carbon Dioxide Capture from Blast Furnace Gas

Energy Procedia ◽

10.1016/j.egypro.2013.06.650 ◽

2013 ◽

Vol 37 ◽

pp. 7134-7138 ◽

Cited By ~ 7

Author(s):

Mikihiro Hayashi ◽

Tomohiro Mimura

Keyword(s):

Carbon Dioxide ◽

Blast Furnace ◽

Carbon Dioxide Capture ◽

Absorption Process ◽

Chemical Absorption ◽

Efficient Energy ◽

Blast Furnace Gas ◽

Steel Industries

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A study on CO2 absorption using hybrid solvents in packed columns

International Journal of Low-Carbon Technologies ◽

10.1093/ijlct/ctz051 ◽

2019 ◽

Cited By ~ 1

Author(s):

Ravinder Kumar ◽

Mohammad Hossein Ahmadi ◽

Dipen Kumar Rajak ◽

Mohammad Alhuyi Nazari

Keyword(s):

Carbon Dioxide ◽

Co2 Capture ◽

Power Plants ◽

Large Scale ◽

Carbon Dioxide Capture ◽

Packed Column ◽

Absorption Efficiency ◽

Co2 Absorption ◽

Process Industries ◽

Carbon Dioxide Co2

Abstract Greenhouse gases emissions from large scale industries as well as gasoline based vehicles are mainly responsible for global warming since the 1980s. At present, it has triggered global efforts to reduce the level of GHG. The contribution of carbon dioxide (CO2) in polluting the environment is at a peak due to the excessive use of coal in power plants. So, serious attention is required to reduce the level of CO2 using advanced technologies. Carbon dioxide capture and storage may play an important role in this direction. In process industries, various carbon dioxide capture techniques can be used to reduce CO2 emissions. However, post-combustion carbon dioxide capture is on top priority. Nowadays the researcher is focusing their work on CO2 capture using hybrid solvent. This work highlights a review of carbon dioxide capture using various kind of hybrid solvent in a packed column. The various challenges for absorption efficiency enhancement and future direction are also discussed in the present work. It is concluded through the literature survey that hybrid solvent shows better efficiency in comparison to the aqueous solution used for CO2 capture.

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CO2 Capture for Power Plants: An Analysis of the Energetic Requirements by Chemical Absorption

Volume 1: Advanced Energy Systems, Advanced Materials, Aerospace, Automation and Robotics, Noise Control and Acoustics, and Systems Engineering ◽

10.1115/esda2006-95372 ◽

2006 ◽

Author(s):

Ana R. Diaz

Keyword(s):

Power Generation ◽

Power Plant ◽

Co2 Capture ◽

Power Plants ◽

Fossil Fuel ◽

Plant Performance ◽

Energy Requirements ◽

Co2 Absorption ◽

Chemical Absorption ◽

Technical Effort

The tendency in the world energy demand seems clear: it can only grow. The energetic industry will satisfy this demand-despite all its dialectic about new technologies-at least medium term mostly with current fossil fuel technologies. In this picture from an engineer’s point of view, one of the primary criterions for mitigating the effects of increasing atmospheric concentration of CO2 is to restrict the CO2 fossil fuel emissions into the atmosphere. This paper is focused on the analysis of different CO2 capture technologies for power plants. Indeed, one of the most important goal to concentrate on is the CO2 capture energy requirements, as it dictates the net size of the power plant and, hence, the net cost of power generation with CO2 avoidance technologies. Here, the Author presents a critical review of different CO2 absorption capture technologies. These technologies have been widely analyzed in the literature under chemical and economic points of view, leaving their impact on the energy power plant performance in a second plan. Thus, the central question examined in this paper is the connection between abatement capability and its energetic requirements, which seriously decrease power generation efficiency. Evidencing that the CO2 capture needs additional technical effort and establishing that further developments in this area must be constrained by reducing its energy requirements. After a comprehensive literature revision, six different chemical absorption methods are analyzed based on a simplified energetic model, in order to account for its energetic costs. Furthermore, an application case study is provided where the different CO2 capture systems studied are coupled to a natural gas cogeneration power plant.

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Capture of CO2 by [bmim]PF6 Ionic Liquid under Normal Temperature and Pressure Conditions

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.347-353.116 ◽

2011 ◽

Vol 347-353 ◽

pp. 116-119

Author(s):

Qiang Wei Li ◽

Yi Zhao ◽

Li Dong Wang

Keyword(s):

Ionic Liquid ◽

Ionic Liquids ◽

Low Temperature ◽

Absorption Capacity ◽

Green Solvent ◽

Absorption Process ◽

Chemical Absorption ◽

Saturated Absorption ◽

Absorption Time ◽

Temperature And Pressure

Subscript textCO2 emission control is an important issue, in which chemical absorption process has reached the widest application. Ionic liquid is a kind of green solvent and expected to take the place of traditional amine absorbents as for its better characteristics. In this paper, two iminazole base ionic liquids were synthesized, including of bromide 1-butyl-3-methylimidazo ([bmim]Br) and 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim]PF6). The performance of CO2 absorption by [bmim]PF6 and [bmim]Br were compared under the same other conditions. Subscript textIt indicates that [bmim]PF6 has more absorption capacity and less saturated absorption time under low temperature, which provides reference for CO2 control by ionic liquid.

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Numerical Model to Analyze the Physicochemical Mechanisms Involved in CO2 Absorption by an Aqueous Ammonia Droplet

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18084119 ◽

2021 ◽

Vol 18 (8) ◽

pp. 4119

Author(s):

M. I. Lamas Galdo ◽

J. D. Rodriguez García ◽

J. M. Rebollido Lorenzo

Keyword(s):

Aqueous Ammonia ◽

Global Climate ◽

Fluid Motion ◽

Decisive Role ◽

Co2 Absorption ◽

Cfd Model ◽

Single Droplet ◽

Dynamics Model ◽

Chemical Absorption ◽

Physical Absorption

CO2 is the main anthropogenic greenhouse gas and its reduction plays a decisive role in reducing global climate change. As a CO2 elimination method, the present work is based on chemical absorption using aqueous ammonia as solvent. A CFD (computational fluid dynamics) model was developed to study CO2 capture in a single droplet. The objective was to identify the main mechanisms responsible for CO2 absorption, such as diffusion, solubility, convection, chemical dissociation, and evaporation. The proposed CFD model takes into consideration the fluid motion inside and outside the droplet. It was found that diffusion prevails over convection, especially for small droplets. Chemical reactions increase the absorption by up to 472.7% in comparison with physical absorption alone, and evaporation reduces the absorption up to 41.9% for the parameters studied in the present work.

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Why are Ionic Liquids Attractive for CO2 Absorption? An Overview

Australian Journal of Chemistry ◽

10.1071/ch08559 ◽

2009 ◽

Vol 62 (4) ◽

pp. 298 ◽

Cited By ~ 188

Author(s):

Junhua Huang ◽

Thomas Rüther

Keyword(s):

Ionic Liquids ◽

Co2 Capture ◽

Power Plants ◽

Cost Effective ◽

Absorption Capacity ◽

Selective Absorption ◽

Co2 Absorption ◽

Co2 Solubility ◽

Capture Process ◽

Advantages And Disadvantages

As the climate debate is hotting up, so is the (re)search for finding powerful new materials for the efficient and cost-effective removal of CO2 from flue-gas streams from power plants and other emission sources. Ionic liquids (ILs), exhibiting higher CO2 solubility than conventional organic solvents, have received considerable interest as new CO2 absorbents. The present paper evaluates the advantages and disadvantages of ILs, and provides an overview of the recent developments of ILs for CO2 capture. In conventional ILs, CO2 is absorbed by occupying the free space between the ions through physical absorption mechanisms. As another promising strategy, task-specific ILs have been studied that, by attaching functional groups to the ions, allow the formation of chemical bonds to improve the overall absorption capacity during the CO2 capture process. Other strategies include using ILs as reaction media or as selective absorption materials.

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