A study on zeolite-based adsorbents for $$\hbox {CO}_{2}$$ capture

Dinda, Srikanta; Murge, Premanath; Paruchuri, Bipin Chakravarthy

doi:10.1007/s12034-019-1936-8

Cited by 18 publications

(4 citation statements)

References 23 publications

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“…The nature of highly loaded adsorbents at temperatures up to 75 °C is mainly due to the diffusion-controlled mechanism of filling of the pores of zeolites using DETA and other amine moieties, limiting the porosity and increasing the availability of CO 2 adsorption sites on amines. The CO 2 adsorption capacities (40–60 wt %) of highly loaded adsorbents could be attributed to the declined diffusion resistance with the increase in temperatures, whereas at higher temperatures of around 100 °C, the CO 2 adsorption capacity is lower due to the exothermic nature of the reaction. ,− DETA-13X at 40 wt % shows higher levels of CO 2 adsorption, which is in contradiction to other zeolites and amine moieties, indicating the stability of the composite and higher adsorption capacity of the 13X-DETA composite at 40 wt % (Z13X, Z4A, Z5A, TEA-13X, etc. ). , The data has been tabulated in Tables and S1 which is pictographically represented in Figure a–c.…”

Section: Resultsmentioning

confidence: 99%

Technoeconomic Investigation of Amine-Grafted Zeolites and Their Kinetics for CO₂ Capture

et al. 2021

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Solid adsorbents with precise surface structural chemistry and porosity are of immense interest to decode the structure−property relationships and maintain an energy-intensive path while achieving high activity and durability. In this work, we reported a series of amine-modified zeolites and their CO 2 capture efficiencies. The amine impregnated molecular zeolite compounds were characterized and systematically investigated for CO 2 adsorption capacity through thermogravimetric analysis for the occurrence of atmospheric pure CO 2 gas at 75 °C with diethylenetriamine (DETA), ethylenediamine (EDA), monoethanolamine (MEA), and triethanolamine (TEA)-loaded zeolite 13X, 4A, and 5A adsorbents. The kinetics of the adsorption study indicated that the adsorption capacity for CO 2 adsorption was improved with amine loading up to a certain concentration over 13X-DETA-40, showing an adsorption capacity of 1.054 mmol of CO 2 per gram of zeolite in a very short amount of time. The result was especially promising in terms of the initial adsorption capacity of zeolite, which adsorbed approximately 0.8 mmol/g zeolite within the first two minutes of experimentation. A detailed flow chart that includes a brief look into the process adopted for adsorption was included. Lagergren pseudo-first-and pseudo-second-order models of 40 wt % DETA zeolite 13X gave CO 2 adsorption capacities of 1.055 and 1.058 mmol/g and also activation energies of 86 and 76 kJ/mol, respectively. The CO 2 adsorption capacity of 13X-DETA-40 in a lab-scale reactor was found to be 1.69 mmol/g. A technoeconomic study was conducted for the solid amine zeolites to understand the investment per ton of CO 2 adsorbed. This study was used as a basis to improve cost estimates from a microscale to a lab-scale reactor.

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Section: Resultsmentioning

confidence: 99%

Technoeconomic Investigation of Amine-Grafted Zeolites and Their Kinetics for CO₂ Capture

et al. 2021

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“…Superior adsorption capabilities and very efficient Cu(II) selectivity were displayed by the composite FAU. That work provided a unique and economical method for synthesizing composite FAU with a high capacity for copper-selective removal. − …”

Section: Functional Applications Of Zeolite/graphene Oxidementioning

confidence: 99%

Future Perspectives on Zeolite/Graphene Oxide Composite Synthesis and Applications

Subramanian,

Perumal,

Mangesh

et al. 2023

Energy Fuels

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Graphene research continues to advance into many territories, and in this study, an exhaustive analysis of the fabrication and performance of zeolite/graphene composites is attempted for the first time. Apart from zeolite/graphene applications, the potential of graphene composites with other materials has been presented. Future perspectives and challenges have been presented extensively to enable researchers to explore the synergy of graphene composites for various unexplored applications. Carbon atoms are arranged in a two-dimensional plate-like pattern to produce the hexagonal network-shaped material known as graphene, which has a material thickness of one atom. Zeolites are frequently employed widely as heterogeneous catalysts in a variety of chemical industries due to their enormous surface area and constant pore size. Recently, scientists have worked to better understand how graphene and zeolite work together as a composite catalyst. The removal of dyes, the adsorption of heavy metal ions, electrochemical capacitors and sensors, oil purification, microbial fuel cells, and reverse osmosis membranes were among the potential uses for zeolite/graphene oxide composites that were investigated in earlier studies. The aforementioned applications show how versatile zeolite/graphene oxide composites are. In addition to summarizing earlier studies on the techniques for synthesizing graphene with common zeolites, this study has also taken historical data to demonstrate improvements in the use of zeolite/graphene composites in diverse industrial applications. There is, nevertheless, a lot of potential for the study of zeolite/graphene composites because the bulk of applications use zeolites and graphene oxide as distinct components. Again, this study has explored the composite potential of graphene with other materials in energy storage, fuel cracking and adsorption applications. This study provides a comprehensive review of the synergistic benefits of graphene composites and its future opportunities and challenges.

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“…Among these, the highly crystalline and porous zeolites with suitable silica–alumina ratio are choice materials for CO 2 capture and have also been investigated widely. − The zeolite materials are advantageous because the porosity, pore size, acidity, basicity, surface area, etc. can be modified easily depending on requirements and applications.…”

Section: Introductionmentioning

confidence: 99%

Zeolite-Based Sorbent for CO₂ Capture: Preparation and Performance Evaluation

2019

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In this work, zeolite-based sorbents were developed from gasified rice husk. CO2 capture capacity of the sorbents was examined at various temperatures and pressures employing a fixed-bed flow reactor and simulated flue gas. Various physicochemical properties such as thermal stability, pore size distribution, morphology, chemical composition, etc. of the in-house-developed materials were characterized in detail and were also compared with two commercially available zeolites. Tetra-ethylenepentamine was impregnated in the in-house-developed zeolite supports to investigate its suitability to improve the CO2 adsorption capacity. The effects of reactor pressure, temperature, Si/Al ratio, and amine loading on CO2 uptake capacity were examined. A declining trend in CO2 adsorption capacity was observed with the increase in adsorption temperature and amine loading. At 30 °C, zeolite-Y (designated as Z-Y-3, silica to alumina ratio of 2.25) sample exhibited maximum adsorption capacity, and the obtained values were around 114 and 190 mg CO2/g sorbent under atmospheric and 5 bar pressure, respectively. It was also observed that the presence of alkali metal ions influenced the adsorption capacity of the zeolites. The study inferred that the adsorbent was efficient and promising for multiple adsorption–desorption cycles without much deterioration of the capture capacity.

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A study on zeolite-based adsorbents for $$\hbox {CO}_{2}$$ capture

Cited by 18 publications

References 23 publications

Technoeconomic Investigation of Amine-Grafted Zeolites and Their Kinetics for CO₂ Capture

Technoeconomic Investigation of Amine-Grafted Zeolites and Their Kinetics for CO₂ Capture

Future Perspectives on Zeolite/Graphene Oxide Composite Synthesis and Applications

Zeolite-Based Sorbent for CO₂ Capture: Preparation and Performance Evaluation

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A study on zeolite-based adsorbents for $$\hbox {CO}_{2}$$ capture

Cited by 18 publications

References 23 publications

Technoeconomic Investigation of Amine-Grafted Zeolites and Their Kinetics for CO2 Capture

Technoeconomic Investigation of Amine-Grafted Zeolites and Their Kinetics for CO2 Capture

Future Perspectives on Zeolite/Graphene Oxide Composite Synthesis and Applications

Zeolite-Based Sorbent for CO2 Capture: Preparation and Performance Evaluation

Contact Info

Product

Resources

About

Technoeconomic Investigation of Amine-Grafted Zeolites and Their Kinetics for CO₂ Capture

Technoeconomic Investigation of Amine-Grafted Zeolites and Their Kinetics for CO₂ Capture

Zeolite-Based Sorbent for CO₂ Capture: Preparation and Performance Evaluation