Promoting the CO2 adsorption in the amine-containing SBA-15 by hydroxyl group

Yue, Ming Bo; Sun, Lin‐Bing; Cao, Yi; Wang, Zhu Ji; Wang, Ying; Yu, Qing; Zhu, Jian Hua

doi:10.1016/j.micromeso.2007.12.016

Cited by 232 publications

(208 citation statements)

References 23 publications

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“…As displayed in Fig. 4, the parent SBA-15 was composed of many rope-shaped domains with relatively uniform particles around 1 μm, which aggregated into wheat-like macrostructure, in agreement with the earlier literature 26,33 . The SBA-15-pr-guanindine catalyst displayed a wheat-like morphology similar to the parent SBA-15 silica.…”

Section: Catalyst Characterizationsupporting

confidence: 91%

“…As shown in Fig. 5, the TEM micrograph of SBA-15 silica clearly revealed the regular hexagonal array of one-dimensional channels with a typical honeycomb-like appearance of solid materials, suggesting the presence of highly ordered pore structure of the host material 29,33 . The prepared SBA-15-pr-guanindine catalyst showed a similar TEM micrograph to the non-functionalized SBA-15 silica, which further demonstrated that the ordered mesoporous framework was essentially retained after the incorporation of organic components into the SBA-15 support, which facilitates the reactant molecules access to the catalytic sites on the catalyst surface.…”

Section: Catalyst Characterizationmentioning

confidence: 91%

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Mesoporous SBA-15 Silica-supported Diisopropylguanidine: an Efficient Solid Catalyst for Interesterification of Soybean Oil with Methyl Octanoate or Methyl Decanoate

Xie

2016

J. Oleo Sci.

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Section: Catalyst Characterizationsupporting

confidence: 91%

Section: Catalyst Characterizationmentioning

confidence: 91%

Mesoporous SBA-15 Silica-supported Diisopropylguanidine: an Efficient Solid Catalyst for Interesterification of Soybean Oil with Methyl Octanoate or Methyl Decanoate

Xie

2016

J. Oleo Sci.

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“…This was probably due to that the template in the pore could prevent TEPA from aggregating to clusters. They further investigated a mixture of TEPA and diethanolamine (DEA) impregnated into the as-synthesized SBA-15 (Yue et al, 2008b). In this case, the highest CO 2 adsorption capacity as 4.00 mmol/g was obtained at a loading of 35% TEPA and 15% DEA, while the maximum CO 2 /N ratio around 0.4 was observed at a loading of 30% TEPA and 20% DEA under anhydrous pure CO 2 .…”

Section: Fig 3 (Continued)mentioning

confidence: 99%

A Review of CO2 Capture by Absorption and Adsorption

Huang

Tan

2012

Aerosol Air Qual. Res.

1,422

875

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Global warming resulting from the emission of greenhouse gases, especially CO 2 , has become a widespread concern in the recent years. Though various CO 2 capture technologies have been proposed, chemical absorption and adsorption are currently believed to be the most suitable ones for post-combustion power plants. The operation of the chemical absorption process is reviewed in this work, together with the use of absorbents, such as the ionic liquid, alkanolamines and their blended aqueous solutions. The major concerns for this technology, including CO 2 capture efficiency, absorption rate, energy required in regeneration, and volume of absorber, are addressed. For adsorption, in addition to physical adsorbents, various mesoporous solid adsorbents impregnated with polyamines and grafted with aminosilanes are reviewed in this work. The major concerns for selection of adsorbent, including cost, adsorption rate, CO 2 adsorption capacity, and thermal stability, are compared and discussed. More effective and less energy-consuming regeneration techniques for CO 2 -loaded adsorbents are also proposed. Future works for both absorption and adsorption are suggested.

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“…(4) ; secondly, a large number of hydroxyl groups in PEG may play a synergistic contribution to the CO 2 adsorption. The hydroxyl groups existing in PEG may facilitate the dispersion of PEI, which promotes the accessibility of amine groups towards CO 2 molecules (Yue et al, 2008).…”

Section: Effect Of Peg Additionmentioning

confidence: 99%

CO2 Capture Behaviors of Amine-Modified Resorcinol-Based Carbon Aerogels Adsorbents

Xie

Wang

2017

Aerosol Air Qual. Res.

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Activated carbon aerogel (CA)-based amine-loaded adsorbent has been successfully developed for CO 2 capture. The adsorbents were characterized by scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FT-IR), N 2 adsorption/desorption and thermogravimetric analysis (TGA). The CO 2 adsorption performance was tested by the fixed bed system at 5% CO 2 concentration. The effects of the mass ratio of KOH to CA, type of amine, amine loadings, addition of polyethylene glycol (PEG) or surfactants and adsorption temperature on the CO 2 capture performance of amine-loaded activated CA as well as the regeneration capability were examined. The results show that the adsorbents effectively remove 5% CO 2 from gas mixtures. The optimum adsorption temperature and amine loadings of polyethyleneimine (PEI)-loaded activated CA are 75°C and 55 wt.% respectively at the activation mass ratio KOH to CA of 1. Under these optimum conditions, the PEI-loaded activated CA reaches the highest adsorption capacity of 2.06 mmol g -1 adsorbent. Addition of PEG facilitates the CO 2 adsorption. Suyadal's and Yasyerli's deactivation models both fit the experimental breakthrough curves of tetraethylenepentamine (TEPA)-loaded activated CA better than that of PEI-loaded activated CA. The adsorption kinetics nonlinear fitting results show that the adsorption process follows Bangham model.

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Promoting the CO2 adsorption in the amine-containing SBA-15 by hydroxyl group

Cited by 232 publications

References 23 publications

Mesoporous SBA-15 Silica-supported Diisopropylguanidine: an Efficient Solid Catalyst for Interesterification of Soybean Oil with Methyl Octanoate or Methyl Decanoate

Mesoporous SBA-15 Silica-supported Diisopropylguanidine: an Efficient Solid Catalyst for Interesterification of Soybean Oil with Methyl Octanoate or Methyl Decanoate

A Review of CO2 Capture by Absorption and Adsorption

CO2 Capture Behaviors of Amine-Modified Resorcinol-Based Carbon Aerogels Adsorbents

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