Journal ArticleDOI
Relationship between Structural Properties and CO2 Capture Performance of CaO-Based Sorbents Obtained from Different Organometallic Precursors
TLDR
In this paper, a series of CaO-based sorbents were synthesized from various organometallic precursors, namely, calcium propionate, calcium acetate, calcined calcium oxalate, and calcium 2-ethylhexanoate, by a simple calcination technique.Abstract:
A series of CaO-based sorbents were synthesized from various organometallic precursors, namely, calcium propionate, calcium acetate, calcium acetylacetonate, calcium oxalate, and calcium 2-ethylhexanoate, by a simple calcination technique. In general, the five organometallic precursors (OMPs) exhibit a three-step weight loss regime in their respective thermogravimetic (TG) profiles. The first weight loss occurs because of dehydration in the temperature range of 50−200 °C. The second one results from decomposition leading to the formation of calcium carbonate in the temperature range of 450−550 °C. The calcium carbonate so formed then undergoes decarboxylation at higher temperatures of 710−750 °C and results in the formation of calcium oxide. Among the various precursors evaluated, CaO-sorbents obtained from calcium propionate and calcium acetate precursors were found to exhibit the highest CO2 capture capacity. The observed results were correlated with the intrinsic properties of the precursors by means o...read more
Citations
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Journal ArticleDOI
CO2 capture by solid adsorbents and their applications: current status and new trends
TL;DR: In this paper, the authors classified solid CO2-adsorbents into three types according to their sorption/desorption temperatures: low-, intermediate-and high-temperature adsorbents with temperatures ranging from below 200 °C, between 200-400 °C and above 400 °C.
Journal ArticleDOI
The calcium looping cycle for large-scale CO2 capture
TL;DR: The reversible reaction between CaO and CO2 is an extremely promising method of removing CO2 from the exhaust of a power station, generating a pure stream of CO2 ready for geological sequestration.
Journal ArticleDOI
Review of recent advances in carbon dioxide separation and capture
Saeed Danaei Kenarsari,Dali Yang,Guodong Jiang,Guodong Jiang,Suojiang Zhang,Jianji Wang,Armistead G. Russell,Qiang Wei,Maohong Fan,Maohong Fan +9 more
TL;DR: A comprehensive assessment of recently improved carbon dioxide (CO2) separation and capture systems, used in power plants and other industrial processes, is provided in this paper, along with their advantages and disadvantages.
Journal ArticleDOI
Chemical looping processes for CO2 capture and carbonaceous fuel conversion – prospect and opportunity
TL;DR: Based on the different functions of looping particles, two types of chemical looping technologies and associated processes have been developed as mentioned in this paper, and the desired particle characterization and recent progress in mechanism studies are generalized, which is followed by a discussion on the looping reactor design.
Journal ArticleDOI
The calcium looping cycle for CO2 capture from power generation, cement manufacture and hydrogen production
TL;DR: Calcium looping as mentioned in this paper is a CO 2 capture scheme using solid CaO-based sorbents to remove CO 2 from flue gases, e.g., from a power plant, producing a concentrated stream of CO 2 (∼95%) suitable for storage.
References
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Journal ArticleDOI
Separation of CO2 from Flue Gas: A Review
Douglas Aaron,Costas Tsouris +1 more
TL;DR: In this paper, the authors present a review of methods for carbon absorption using solvents or solid sorbents, pressure and tester, and pressure-and tester-based methods.
Journal ArticleDOI
Effect of the product layer on the kinetics of the CO2‐lime reaction
TL;DR: In this paper, the kinetics of reaction between CO2 and lime are investigated in the range of 673 to 998 K with a view to examining the effects of product layer deposition and variations in the limestone calcination atmosphere.
Journal ArticleDOI
Carbonation−Calcination Cycle Using High Reactivity Calcium Oxide for Carbon Dioxide Separation from Flue Gas
Himanshu Gupta,Liang-S. Fan +1 more
TL;DR: In this paper, a CaO sorbent obtained from precipitated calcium carbonate (PCC) was used in a reaction-based process for the separation of carbon dioxide (CO2) from flue gas.
Journal ArticleDOI
The reversibility of the reaction CaCO3 ⇄ CaO+CO2
TL;DR: The reversibility of the reaction CaCO3 ⇌ CaO+CO2 has been examined through a large number of cycles (up to 40), mainly at 866 °C as mentioned in this paper.
Journal ArticleDOI
Effect of Preparation Temperature on Cyclic CO2 Capture and Multiple Carbonation−Calcination Cycles for a New Ca-Based CO2 Sorbent
TL;DR: In this article, a new kind of regenerable CO2 sorbent, CaO/Ca12Al14O33, obtained by the integration of CaO as solid reactant with a composite metal oxide of Ca12Al 14O33 as a binder was investigated by thermogravimetric analysis, XRD, and SEM at different preparation calcination temperatures.
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