CO2 capture and adsorption kinetic study of amine-modified MIL-101 (Cr)

Mutyala, Suresh; Jonnalagadda, Madhavi; Mitta, Harisekhar; Raveendra, G.

doi:10.1016/j.cherd.2019.01.020

Cited by 58 publications

(15 citation statements)

References 47 publications

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“…On the other hand, the CO 2 adsorption capacity of TETA-modified activated carbon (AC) is lower than that of TETA-modified MC, indicating that the functionalization of AC with amine-functional groups may block its pores and leave limited access for CO 2 to pass through due to decreases in its surface area and pore volume. [2,15,19,32,[41][42][43][44][45]. The advantages of using mesoporous carbon as the support material for capturing CO 2 are it has a large surface area to accommodate a large amount of amine functional groups that contact with CO 2, and it does not require a complicated synthesis process [46].…”

Section: Discussionmentioning

confidence: 99%

Study of Amine Functionalized Mesoporous Carbon as CO2 Storage Materials

2021

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Carbon sequestration via the carbon capture and storage (CCS) method is one of the most useful methods of lowering CO2 emissions in the atmosphere. Ethylenediamine (EDA)- and triethylenetetramine (TETA)-modified mesoporous carbon (MC) has been successfully prepared as a CO2 storage material. The effect of various concentrations of EDA or TETA added to MC, as well as activated carbon (AC), on their CO2 adsorption capacity were investigated using high-purity CO2 as a feed and a titration method to quantitatively measure the amount of adsorbed CO2. The results showed that within 60 min adsorption time, MCEDA49 gave the highest CO2 capacity adsorption (19.68 mmol/g), followed by MC-TETA30 (11.241 mol/g). The improvement of CO2 adsorption capacity at low TETA loadings proved that the four amine functional groups in TETA gave an advantage to CO2 adsorption. TETA-functionalized MC has the potential to be used as a CO2 storage material at a low concentration. Therefore, it is relatively benign and friendly to the environment.

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Section: Discussionmentioning

confidence: 99%

Study of Amine Functionalized Mesoporous Carbon as CO2 Storage Materials

2021

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“…The adsorption method, which is part of the carbon capture and storage (CCS) technology, is considered an efficient and economical method for replacing conventional technology in the CO2 scrubbing process, since the technology of amine solvents is deficient in corrosion and toxicity (Kartohardjono et al, 2017;Kusrini et al, 2018). Moreover, large amounts of energy are required to recycle amines, which diminishes the efficiency of energy usage, creates high costs in power plants, and produces corrosion in the pipeline (Ye et al, 2013;Mutyala et al, 2019). Another type of CCS technology is the membrane separation method, but this method is expensive in design and synthesis (Brunetti et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterizations, and Adsorption Isotherms of CO2 on Chromium Terephthalate (MIL-101) Metal-organic Frameworks (Mofs)

Yulia¹,

Utami²,

Nasruddin³

et al. 2019

IJTech

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The concentration of CO2 in the atmosphere caused by fossil fuels, power plants, and transportation is the most significant environmental issue in the world today. Intensive efforts have been made to minimize CO2 levels to reduce global warming. Metal-organic frameworks (MOFs), crystalline porous materials, exhibit great potential to adsorb carbon dioxide. In the present study, research was conducted on the synthesis, characterization, and adsorption isotherms of MIL-101. MIL-101, one type of mesoporous MOF, can adsorb enormous amounts of CO2. The synthesis was carried out using a fluorine-free hydrothermal reaction method. The porous properties, structure, morphology, thermal stability, and chemical functionalities of MIL-101 Cr were measured by N2 adsorption/desorption isotherms, X-ray diffraction (XRD), scanning electron microscope (SEM), thermogravimetric analysis (TGA), and Fourier transform infrared spectroscopy (FTIR) analysis, respectively. The volumetric uptakes of CO2 were experimentally measured at temperatures of 298-308 K and pressure of up to 600 kPa. The experimental result was correlated with the Toth isotherm model, showing the heterogeneity of the adsorbent. The heat of adsorption of MIL-101 was determined from the measured isotherm data, indicating the strength between the adsorbent and adsorbate molecule.

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“…Figure 7 shows the t50 of the Lewatit sorbent used in this study in comparison to other solid functionalized sorbents tested at air capture conditions from the literature [17,25,47,52]. The operating flows of 188, 206, 273, and 313 m 3 /h studied for Lewatit correspond to the 50% tsto values of 22,18,16, and 12 min, respectively. Note that other data from the literature listed in Figure 7 were all obtained from experiments at 25 °C.…”

Section: Discussionmentioning

confidence: 99%

“…Supported amine solid sorbents are a promising alternative for DAC, also at lower production scales, as they need lower regeneration temperatures and avoid evaporative solvent losses. Supported amine sorbents were firstly studied for DAC by Belmabkhout et al [11], and an increasing number of papers have been published using these sorbents since then [11][12][13][14][15][16][17][18][19][20][21][22][23]. Most of the DAC studies target the development of new supported amine sorbents, thereby focusing on enhancing the CO 2 equilibrium capacity, utilizing thermogravimetric analyzers or fixed bed reactors with a few grams of sorbent [24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

A Radial Flow Contactor for Ambient Air CO2 Capture

Brilman

2020

Applied Sciences

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Direct air capture (DAC) of CO2 can address CO2 emissions from distributed sources and produce CO2 from air virtually anywhere that it is needed. In this paper, the performance of a new radial flow reactor (RFR) for CO2 adsorption from ambient air is reported. The reactor uses a supported amine sorbent and is operated in a batch mode of operation or semi-continuously, respectively without or with sorbent circulation. The radial flow reactor, containing 2 kg of the adsorbent, is successfully scaled up from the experimental results obtained with a fixed bed reactor using only 1 g of the adsorbent. In the batch operation mode, the sorbent in the annular space of the RFR is regenerated in situ. With sorbent circulation, the RFR is loaded and unloaded batchwise and only used as an adsorber. A sorbent batch loaded with CO2 is transported to and regenerated in an external (fluid bed) regenerator. The RFR unit is characterized by a low contacting energy (0.7–1.5 GJ/ton-CO2) and a relatively short adsorption time (24–43 min) compared to other DAC processes using the same types of sorbents. The contactor concept is ready for further scale-up and continuous application.

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CO2 capture and adsorption kinetic study of amine-modified MIL-101 (Cr)

Cited by 58 publications

References 47 publications

Study of Amine Functionalized Mesoporous Carbon as CO2 Storage Materials

Study of Amine Functionalized Mesoporous Carbon as CO2 Storage Materials

Synthesis, Characterizations, and Adsorption Isotherms of CO2 on Chromium Terephthalate (MIL-101) Metal-organic Frameworks (Mofs)

A Radial Flow Contactor for Ambient Air CO2 Capture

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