Novel asphaltene-derived nanoporous carbon with N-S-rich micro-mesoporous structure for superior gas adsorption: Experimental and DFT study

Tehrani, Neda Haj Mohammad Hossein; Alivand, Masood S.; Maklavany, Davood Mohammady; Rashidi, Alimorad; Samipoorgiri, Mohammad; Seif, Abdolvahab; Yousefian, Z.

doi:10.1016/j.cej.2018.10.115

Cited by 72 publications

(26 citation statements)

References 82 publications

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“…Hence, post-combustion CO 2 capture seems the only viable strategy to control CO 2 emission from these sectors and achieve the committed goals of the Paris Agreement. Among the different CO 2 separation and purification technologies available (e.g., absorption, , adsorption, , membrane separation, , and cryogenic distillation , ), chemical absorption using aqueous solvents has been the most reliable and therefore promising technology for large-scale post-combustion CO 2 capture (PCC). This is because the flexibility of chemical absorption processes in dealing with various CO 2 concentrations and feed rates make them favorable options for large-scale CO 2 capture from a range of point-sources.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Solvent Regeneration for Energy-Efficient CO₂ Capture

Alivand

Mazaheri

et al. 2020

ACS Sustainable Chem. Eng.

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CO 2 emissions from industrial processes and their adverse implications on the climate is of major concern. Carbon capture and storage (CCS), especially using chemical-absorption-based processes, has been regarded as one of the most realistic pathways to curtail global warming and climate change. However, the energy-intensive nature of CO 2 capture and therefore its expensive cost of operation has been regarded as the main barrier halting its widespread implementation among the portfolio of lowcarbon energy technologies currently available. Recently, catalytic solvent regeneration has drawn significant attention as a new class of technology for energy-efficient CO 2 capture with great potential for large-scale implementation. In this review, recent progress and developments associated with catalyst-aided solvent regeneration for lowtemperature energy-efficient CO 2 desorption is presented. A detailed discussion of heterogeneous acid−base catalyst is undertaken and the specific privileges, drawbacks, and challenges of each catalyst identified and commented upon. In keeping with the latest investigations, the promotion mechanism of catalytic CO 2 desorption and the role of Lewis acids, Brønsted acids, and basic active sites are scrutinized. The performance of solid acid−base catalysts in different primary and blended amine solutions associated with their physicochemical properties is also reviewed. Finally, the status of catalytic solvent regeneration for post-combustion CO 2 capture is comprehensively analyzed and a clear pathway for future research investigations is provided.

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Section: Introductionmentioning

confidence: 99%

Catalytic Solvent Regeneration for Energy-Efficient CO₂ Capture

Alivand

Mazaheri

et al. 2020

ACS Sustainable Chem. Eng.

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“…In detail, when the activation temperature or the amount of K 2 CO 3 increases, the content of N shows a decreasing trend, which is consistent with the literature reports. ,, The content of sulfur element in the samples does not show a significant change with the activation, which may be related to its relatively low content. Although it has been reported that S-doping of porous carbon can also increase the capacity for CO 2 capture, , since the S content involved in this article is relatively low, there is no further study on the effect of S.…”

Section: Resultsmentioning

confidence: 91%

Nitrogen-Containing Porous Carbon for Highly Selective and Efficient CO₂ Capture

Song

Liu

et al. 2019

Energy Fuels

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N-containing porous carbon was facilely synthesized by carbonization of melamine colloidal spheres and further activation with K 2 CO 3 . The nonactivated porous carbon exhibits excellent CO 2 adsorption selectivity with an ideal adsorbed solution theory (IAST) selectivity factor of 129 (CO 2 /N 2 = 15:85, 1 bar, 25 °C) and great CO 2 capture capacity (1.26 mmol/g), at low pressure (0.15 bar, 25 °C). Moreover, the performance of the material can be further enhanced after activation by K 2 CO 3 with 3.71 and 6.19 mmol/g CO 2 uptake at 25 and 0 °C, respectively, under atmospheric pressure. Furthermore, the dynamic breakthrough tests also validate the ability of porous carbon to preferentially adsorb CO 2 , which can be attributed to the abundant micropores and high N content of the porous carbon, having been proved by detailed experiments and characterization methods. In addition, the porous carbon has great regenerative capacity and proper heat adsorption. Hence, porous carbon can be used as a valuable candidate for a CO 2 adsorbent in extensive practical applications.

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“…Moreover, with the aggravated activation process, the intensity of N peak decreases, indicating the loss of unstable N species on the surface, which is consistent with the results of the elemental analysis. As shown in Figure a, the highly analytical C 1s spectra of CSC contain three peaks, including 284.6 (C–C/CC), 285.5 (C–N/C–O), and 288.1 eV (CO). ,, The highly analytical N 1s spectra of CSCX-Y were deconvoluted into two peaks around 398.3 eV (pyridinic-N) and 400.5 eV (pyrrolic-/pyridonic-N) (see Figure b and S7), which had been proven to be beneficial for CO 2 capture. − …”

Section: Resultsmentioning

confidence: 97%

“…With the increase of the activation temperature and the mass of KOH, the N content of the prepared samples showed a downward trend, which can be attributed to the decomposition or consumption of certain thermally unstable nitrogen species in CSC, owing to the ascending activation intensity. , Furthermore, the N-containing functional groups which can provide nitrogen source in the materials are inferred by Fourier transform infrared (FT-IR) spectra (see Figure S6). Typically, the peaks at 3446, 2919, 1635, and 1039 cm –1 can be classified as N–H or O–H stretching vibrations, C–H stretching vibrations, N–H in-plane deformation vibrations, and C–O stretching vibrations (SO symmetry stretching vibrations), respectively. , …”

Section: Resultsmentioning

confidence: 99%

“…Typically, the peaks at 3446, 2919, 1635, and 1039 cm −1 can be classified as N−H or O−H stretching vibrations, C−H stretching vibrations, N− H in-plane deformation vibrations, and C−O stretching vibrations (SO symmetry stretching vibrations), respectively. 24,33 X-ray photoelectron spectroscopy (XPS) was used to further clarify the elemental composition and chemical states of C and N elements in the shallow. In the XPS survey spectra (Figure S7), there are three characteristic peaks around 285, 398, and 530 eV, which represent the signatures of the orbitals of C 1s, N 1s, and O 1s, respectively.…”

Section: Resultsmentioning

confidence: 99%

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Facile Preparation of Porous Carbon Derived from Industrial Biomass Waste as an Efficient CO₂ Adsorbent

Song

Liu

et al. 2020

ACS Omega

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A porous carbon CO 2 adsorbent based on soybean cake (industrial biomass waste) has been successfully prepared by direct carbonation, following KOH activation. The prepared porous carbon adsorbent exhibits efficient CO 2 capture performance with the highest adsorption capacity of 4.19 and 6.61 mmol/g at 298 and 273 K under atmospheric pressure, respectively. Moreover, the porous carbon adsorbent also shows good static CO 2 adsorption capacity at a low pressure (0.15 bar) with an uptake of 1.26 mmol/g and an equally ideal dynamic CO 2 capture capability with an uptake of 1.28 mmol/g (15% CO 2 ) at 298 K. Additionally, the ideal adsorbed solution theory (IAST) model has been used to measure the selectivity of the porous carbon, and the IAST factors of CO 2 /N 2 (15/85, fuel gas), CO 2 /CH 4 (40/60, biogas), and CH 4 /N 2 (50/50, coalbed gas) are about 27, 6, and 6, respectively. The dynamic breakthrough test reveals the strong interaction between the porous carbon and CO 2 , which also verifies the considerable selective capture ability of this material for CO 2 . Furthermore, the soybean cake-based CO 2 adsorbent also presents prominent cyclic regeneration capacity (a five-time cyclic test) with lower isosteric heats (34−18 kJ/mmol) of CO 2 adsorption.

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Novel asphaltene-derived nanoporous carbon with N-S-rich micro-mesoporous structure for superior gas adsorption: Experimental and DFT study

Cited by 72 publications

References 82 publications

Catalytic Solvent Regeneration for Energy-Efficient CO₂ Capture

Catalytic Solvent Regeneration for Energy-Efficient CO₂ Capture

Nitrogen-Containing Porous Carbon for Highly Selective and Efficient CO₂ Capture

Facile Preparation of Porous Carbon Derived from Industrial Biomass Waste as an Efficient CO₂ Adsorbent

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Novel asphaltene-derived nanoporous carbon with N-S-rich micro-mesoporous structure for superior gas adsorption: Experimental and DFT study

Cited by 72 publications

References 82 publications

Catalytic Solvent Regeneration for Energy-Efficient CO2 Capture

Catalytic Solvent Regeneration for Energy-Efficient CO2 Capture

Nitrogen-Containing Porous Carbon for Highly Selective and Efficient CO2 Capture

Facile Preparation of Porous Carbon Derived from Industrial Biomass Waste as an Efficient CO2 Adsorbent

Contact Info

Product

Resources

About

Catalytic Solvent Regeneration for Energy-Efficient CO₂ Capture

Catalytic Solvent Regeneration for Energy-Efficient CO₂ Capture

Nitrogen-Containing Porous Carbon for Highly Selective and Efficient CO₂ Capture

Facile Preparation of Porous Carbon Derived from Industrial Biomass Waste as an Efficient CO₂ Adsorbent