Pentaethylenehexamine loaded SBA-16 for CO 2  capture from simulated flue gas

Liu, Yamin; Lin, Xiaoying; Wu, Xiaohang; Liu, Minyi; Shi, Ranran; Yu, Xibin

doi:10.1016/j.powtec.2017.06.002

Cited by 32 publications

(20 citation statements)

References 39 publications

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“…The regeneration of the adsorbent is carried out by temperature or pressure swing adsorption (TSA or PSA) [20]. For TSA, solid adsorbents with a lower heat capacity are claimed for reducing the energy required for regeneration [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Non-Energy Valorization of Residual Biomasses via HTC: CO2 Capture onto Activated Hydrochars

et al. 2020

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This study aims to investigate the CO2 sorption capacity of hydrochar, obtained via hydrothermal carbonization (HTC). Silver fir sawdust was used as a model material. The batch runs went at 200 °C and up to 120 min. The hydrochar was activated with potassium hydroxide impregnation and subsequent thermal treatment (600 °C, 1 h). CO2 capture was assayed using a pressure swing adsorption (PSA) process. The morphology and porosity of hydrochar, characterized through Brunauer-Emmett-Teller, Barrett-Joyner-Halenda (BET-BJH) and scanning electron microscopy (SEM) analyses, were reported and the sorbent capacity was compared with traditional sorbents. The hydrochar recovered immediately after the warm-up of the HTC reactor had better performances. The Langmuir equilibrium isotherm fits the experimental data satisfactorily. Selectivity tests performed with a model biogas mixture indicated a possible use of hydrochar for sustainable upgrading of biogas to bio-methane. It is conceivably a new, feasible, and promising option for CO2 capture with low cost, environmentally friendly materials.

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Section: Introductionmentioning

confidence: 99%

Non-Energy Valorization of Residual Biomasses via HTC: CO2 Capture onto Activated Hydrochars

et al. 2020

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“…An amine-functionalized adsorbent was synthesized by impregnating 10-40 wt.% PEHA on SBA-16 mesoporous silica. 59 The CO 2 adsorption capacity of the amine-functionalized adsorbent increased with increasing temperature and showed higher CO 2 adsorption capacity (1.6-2.1 mmol g −1 ) compared to SBA-16 (0.03 mmol g −1 ) at 70 °C. When the temperature increased to 80 °C, the adsorption capacity decreased to 1.4-1.8 mmol g −1 due to partial CO 2 desorption.…”

Section: Composite Adsorbentmentioning

confidence: 88%

“…15 (SBA-15), 58 and Santa Barbara Amorphous No. 16 (SBA-16) 59 are typical mesoporous silica materials (shown in Figure 7). These mesoporous silica materials can be synthesized using sol-gel processing, template assisted techniques, microwave assisted techniques, and chemical etching methods.…”

Section: Silicamentioning

confidence: 99%

“…Mesoporous silica materials however have low hydrothermal stability in the presence of boiling water or steam 66 and require functionalization with various amine functional groups for enhanced CO 2 adsorption. 58,59,67 Metal organic framework MOF-derived nanostructures have been utilized not only for CO 2 adsorption 68,69 but also for hydrogen (H 2 ) adsorption, 70,71 methane/ethane (CH 4 /C 2 H 6 ) adsorption, 72 other hydrocarbons adsorption, 72 and also in catalysis 73 given their extraordinary chemical tunable pore geometry, surface functionality within the frameworks, and high surface areas. 72 These textural characteristics can in turn facilitate large adsorption capacities and the selectivity control in adsorption.…”

Section: Silicamentioning

confidence: 99%

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A review of CO₂adsorbents performance for different carbon capture technology processes conditions

2021

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The utilization of various conventional and emerging solid adsorbents is an attractive carbon capture method for post-combustion and direct air capture (DAC). This review aims to identify adsorbents with the highest CO 2 adsorption performance at various CO 2 capture conditions inclusive of pre-combustion, post-combustion, and DAC to aid the selection of adsorbents. It presents the various adsorbents' physical and chemical properties, their synthesis methods, CO 2 adsorption performance, and their advantages as CO 2 adsorbents. Findings of the review show that NaX@NaA core-shell microspheres possess the highest CO 2 adsorption capacity at 5.60 mmol g −1 for adsorption at DAC conditions. MOF-177-TEPA exhibited the highest post-combustion condition CO 2 adsorption capacity at 4.60 mmol g −1 given tetraethylenepentamine properties leading to low diffusion resistance for CO 2 and easy access to active sites. Approximation of these adsorbents' adsorption capacity within pre-combustion capture temperature at 1 bar for oxy-combustion process was 0.0000026-48.71 mmol g −1 . It is crucial to understand and evaluate these adsorbents' characteristics for application in the appropriate adsorption conditions. This considers their usage limitations on pilot-scale CO 2 capture because of low productivity, poor durability, and stability for prolonged cyclic adsorption-desorption, expensive adsorption system, high gas flow rate, high adsorbate accommodation requirement, longer flow switching time, and low tolerance towards water and impurities present in flue gas. This paper hence presents future enhancements in overcoming their limitations to accommodate pilot scale carbon capture. These are beneficial in providing insights for capturing CO 2 from flue gases emitted in industries.

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“…Solid adsorbents are very suitible for adsorption of CO2 owing to high adsorption capacity, fast adsorption rate, and good stability (Liu et al, 2017c). One of the solid adsorbents is porous carbon materials have been attracting lots of awareness as potential large-scale adsorbents because of the many advantages such as well-ordered structure, high surface area, large tunable and uniform mesoporous size, high mechanical strength and good hydrothermal stability at extensive temperature ranges (Zhao et al, 2012;Deng et al, 2012;Singh et al, 2018;Liu et al, 2017b).…”

Section: Introductionmentioning

confidence: 99%

Investigation of ordered mesoporous carbon potential as low-cost CO2 adsorbent

2020

Global NEST: The International Journal

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<p>In this study, an investigation was carried out in order to determine the potential of ordered mesoporous carbon including high ratio sucrose in its composition as a CO2 adsorbent. Structural characterizations of silica and carbon material were determined by using a scanning electron microscope (SEM), N2 adsorption/desorption and X-ray diffraction (XRD) analysis. CO2 adsorption capacities of developed adsorbent at various temperatures (25°C, 35°C and 50°C) were determined by using a thermogravimetric analyzer under CO2 flow. The maximum adsorption capacity was obtained as approximately 2.27 mmol g CO2 g-1 adsorbent which was remained almost the same in the desorption process. The first order reaction kinetic model was well fitted with the experimental data. Arrhenius equation was used to calculate activation energy which was obtained as -2.86 kJ mol-1 indicating barrier-less type adsorption. Results showed that ordered mesoporous carbon could be a potential source for an efficient and low-cost adsorbent for CO2 capture.</p>

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Pentaethylenehexamine loaded SBA-16 for CO 2 capture from simulated flue gas

Cited by 32 publications

References 39 publications

Non-Energy Valorization of Residual Biomasses via HTC: CO2 Capture onto Activated Hydrochars

Non-Energy Valorization of Residual Biomasses via HTC: CO2 Capture onto Activated Hydrochars

A review of CO₂adsorbents performance for different carbon capture technology processes conditions

Investigation of ordered mesoporous carbon potential as low-cost CO2 adsorbent

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Pentaethylenehexamine loaded SBA-16 for CO 2 capture from simulated flue gas

Cited by 32 publications

References 39 publications

Non-Energy Valorization of Residual Biomasses via HTC: CO2 Capture onto Activated Hydrochars

Non-Energy Valorization of Residual Biomasses via HTC: CO2 Capture onto Activated Hydrochars

A review of CO2adsorbents performance for different carbon capture technology processes conditions

Investigation of ordered mesoporous carbon potential as low-cost CO2 adsorbent

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Product

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A review of CO₂adsorbents performance for different carbon capture technology processes conditions