Journal Article10.1002/CSSC.200900036
Adsorbent Materials for Carbon Dioxide Capture from Large Anthropogenic Point Sources
2.4K
TL;DR: The CO(2) adsorption behavior of several different classes of solid carbon dioxide adsorbents, including zeolites, activated carbons, calcium oxides, hydrotalcites, organic-inorganic hybrids, and metal-organic frameworks are described.
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Abstract: Since the time of the industrial revolution, the atmospheric CO(2) concentration has risen by nearly 35 % to its current level of 383 ppm. The increased carbon dioxide concentration in the atmosphere has been suggested to be a leading contributor to global climate change. To slow the increase, reductions in anthropogenic CO(2) emissions are necessary. Large emission point sources, such as fossil-fuel-based power generation facilities, are the first targets for these reductions. A benchmark, mature technology for the separation of dilute CO(2) from gas streams is via absorption with aqueous amines. However, the use of solid adsorbents is now being widely considered as an alternative, potentially less-energy-intensive separation technology. This Review describes the CO(2) adsorption behavior of several different classes of solid carbon dioxide adsorbents, including zeolites, activated carbons, calcium oxides, hydrotalcites, organic-inorganic hybrids, and metal-organic frameworks. These adsorbents are evaluated in terms of their equilibrium CO(2) capacities as well as other important parameters such as adsorption-desorption kinetics, operating windows, stability, and regenerability. The scope of currently available CO(2) adsorbents and their critical properties that will ultimately affect their incorporation into large-scale separation processes is presented.
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Citations
Amines immobilized double-walled silica nanotubes for CO2 capture.
TL;DR: Amine groups supported on double-walled silica nanotubes (DWSNTs) have been prepared via the immobilization of various aminosilanes on DWSNT, and found to be a very effective adsorbent for CO2 capture.
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Micro/Mesoporous Activated Carbons Derived from Polyaniline: Promising Candidates for CO2 Adsorption
Ana Silvestre-Albero,Joaquín Silvestre-Albero,Manuel Martínez-Escandell,Francisco Rodríguez-Reinoso +3 more
TL;DR: In this paper, a series of activated carbons were prepared by carbonization of polyaniline at different temperatures, using KOH or K2CO3 as activating agent.
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Synthesis and characterization of mesoporous MOF UMCM-1 for CO2/CH4 adsorption; an experimental, isotherm modeling and thermodynamic study
Sami Ullah,Mohamad Azmi Bustam,Mohammed Ali Assiri,Abdullah G. Al-Sehemi,Girma Gonfa,Ahmad Mukhtar,Firas A. Abdul Kareem,Muhammad Ayoub,Sidra Saqib,Nurhayati Binti Mellon +9 more
TL;DR: In this article, a metal-centered organic framework (UMCM-1) demonstrating microporous nature was prepared by the combination of the organic linker 1,3,5-tris(4-carboxyphenyl) benzene (H2BTB) and the salt Zinc Nitrate Hexahydrate (Zn-(NO3)2·6H2O) via solution-based, catalyst-free, and direct mixing method.
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A multi-stage fluidized bed system for continuous CO2 capture by means of temperature swing adsorption – First results from bench scale experiments
TL;DR: In this article, the authors proposed a new post-combustion CO2 capture process that is based on continuous temperature swing adsorption, which comprises two interconnected multi-stage fluidized bed columns that enable counter-current contact of adsorbent and gas streams in the adorption and desorption step.
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Ultramicroporous carbons with extremely narrow pore size distribution via in-situ ionic activation for efficient gas-mixture separation
TL;DR: In this article, the pore sizes within the ultramicroporous ranges were optimized for gas separation in a cycle-reliable, cycle reliable, and moisture resistant adorbents.
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